Point common at the opaque theme upgrade

Co-Authored-By: Claude Opus 5.5 <[email protected]>

.gitea/scripts/publish_modrinth.mjs

@@ -0,0 +1,164 @@
+#!/usr/bin/env node
+// Publish the jars attached to a Gitea release to Modrinth.
+//
+// Creates one Modrinth version per jar (saturn-client-<version>+<mc>.jar), for
+// that Minecraft version, with Fabric API as a required dependency and the
+// Gitea release notes as the changelog. Versions that already exist on
+// Modrinth are skipped, so the script is safe to re-run.
+//
+// Runs on plain Node (>= 18: fetch, FormData, Blob) with no dependencies, since
+// every Gitea Actions runner has Node to run JavaScript actions.
+//
+// Environment:
+//   TAG               release tag, e.g. 0.1.1-beta
+//   SERVER_URL        public Gitea URL, e.g. https://git.selimaj.dev
+//   REPO              owner/name, e.g. saturnclientmc/saturnclient
+//   MODRINTH_TOKEN    Modrinth PAT with the "Create versions" scope
+//   DRY_RUN           "true" to check everything and print what would be
+//                     published without uploading (no token needed)
+
+const MODRINTH_API = "https://api.modrinth.com/v2";
+const MODRINTH_PROJECT_ID = "i6JDSY9x"; // saturnclient
+const FABRIC_API_PROJECT_ID = "P7dR8mSH";
+const USER_AGENT =
+  "saturnclientmc/saturnclient release workflow (https://git.selimaj.dev/saturnclientmc/saturnclient)";
+
+const JAR_NAME = /^saturn-client-(?<version>.+)\+(?<mc>\d+\.\d+(?:\.\d+)?)\.jar$/;
+
+function fail(message) {
+  console.error(message);
+  process.exit(1);
+}
+
+async function http(url, options = {}) {
+  const res = await fetch(url, {
+    ...options,
+    headers: { "User-Agent": USER_AGENT, ...options.headers },
+  });
+  if (!res.ok) {
+    const error = new Error(`${options.method ?? "GET"} ${url} returned ${res.status}: ${await res.text()}`);
+    error.status = res.status;
+    throw error;
+  }
+  return res;
+}
+
+async function getJson(url) {
+  return (await http(url)).json();
+}
+
+function versionType(tag) {
+  const t = tag.toLowerCase();
+  if (t.includes("alpha")) return "alpha";
+  if (t.includes("beta") || t.includes("rc") || t.includes("pre")) return "beta";
+  return "release";
+}
+
+function compareMc(a, b) {
+  const pa = a.split(".").map(Number);
+  const pb = b.split(".").map(Number);
+  for (let i = 0; i < Math.max(pa.length, pb.length); i++) {
+    const diff = (pa[i] ?? 0) - (pb[i] ?? 0);
+    if (diff !== 0) return diff;
+  }
+  return 0;
+}
+
+async function main() {
+  const { TAG: tag, SERVER_URL, REPO: repo } = process.env;
+  const serverUrl = (SERVER_URL ?? "").replace(/\/+$/, "");
+  const dryRun = (process.env.DRY_RUN ?? "").toLowerCase() === "true";
+  const token = process.env.MODRINTH_TOKEN ?? "";
+
+  if (!tag || !serverUrl || !repo) fail("TAG, SERVER_URL and REPO must be set.");
+  if (!token && !dryRun) {
+    fail("MODRINTH_TOKEN is not set. Add it as a repository secret (Settings → Actions → Secrets).");
+  }
+
+  let release;
+  try {
+    release = await getJson(`${serverUrl}/api/v1/repos/${repo}/releases/tags/${encodeURIComponent(tag)}`);
+  } catch (e) {
+    if (e.status === 404) fail(`No Gitea release with tag ${tag}.`);
+    throw e;
+  }
+  const changelog = release.body ?? "";
+
+  const jars = (release.assets ?? [])
+    .map((asset) => ({ name: asset.name, match: JAR_NAME.exec(asset.name) }))
+    .filter(({ match }) => match)
+    .map(({ name, match }) => ({ name, version: match.groups.version, mc: match.groups.mc }))
+    .sort((a, b) => compareMc(a.mc, b.mc));
+
+  if (jars.length === 0) fail(`Release ${tag} has no saturn-client-*.jar assets. Run the Release workflow first.`);
+
+  for (const jar of jars) {
+    if (jar.version !== tag.replace(/^v/, "")) fail(`${jar.name} is version ${jar.version}, but the release tag is ${tag}.`);
+  }
+
+  const knownGameVersions = new Set((await getJson(`${MODRINTH_API}/tag/game_version`)).map((g) => g.version));
+  const unknown = [...new Set(jars.map((j) => j.mc))].filter((mc) => !knownGameVersions.has(mc));
+  if (unknown.length > 0) fail(`Modrinth doesn't know these Minecraft versions: ${unknown.join(", ")}`);
+
+  const existing = new Set(
+    (await getJson(`${MODRINTH_API}/project/${MODRINTH_PROJECT_ID}/version`)).map((v) => v.version_number),
+  );
+  const kind = versionType(tag);
+  const failed = [];
+
+  for (const { name, version, mc } of jars) {
+    const versionNumber = `${version}+${mc}`;
+
+    if (existing.has(versionNumber)) {
+      console.log(`skip    ${versionNumber}: already on Modrinth`);
+      continue;
+    }
+
+    // Gitea's own download URLs use its internal ROOT_URL, so build a public one.
+    const downloadUrl = `${serverUrl}/${repo}/releases/download/${encodeURIComponent(tag)}/${encodeURIComponent(name)}`;
+
+    const data = {
+      project_id: MODRINTH_PROJECT_ID,
+      name: `Saturn Client ${versionNumber}`,
+      version_number: versionNumber,
+      changelog,
+      dependencies: [{ project_id: FABRIC_API_PROJECT_ID, dependency_type: "required" }],
+      game_versions: [mc],
+      version_type: kind,
+      loaders: ["fabric"],
+      featured: false,
+      status: "listed",
+      file_parts: ["file"],
+      primary_file: "file",
+    };
+
+    if (dryRun) {
+      const probe = await http(downloadUrl, { headers: { Range: "bytes=0-0" } });
+      await probe.arrayBuffer();
+      console.log(`would publish ${versionNumber} (${kind}, Minecraft ${mc}) from ${downloadUrl} [reachable]`);
+      continue;
+    }
+
+    try {
+      const jarBytes = await (await http(downloadUrl)).arrayBuffer();
+
+      const form = new FormData();
+      form.append("data", JSON.stringify(data));
+      form.append("file", new Blob([jarBytes], { type: "application/java-archive" }), name);
+
+      await http(`${MODRINTH_API}/version`, {
+        method: "POST",
+        headers: { Authorization: token },
+        body: form,
+      });
+      console.log(`publish ${versionNumber}: done (${(jarBytes.byteLength / 1_000_000).toFixed(1)} MB)`);
+    } catch (e) {
+      console.error(`publish ${versionNumber}: FAILED ${e.message}`);
+      failed.push(versionNumber);
+    }
+  }
+
+  if (failed.length > 0) fail(`Failed to publish: ${failed.join(", ")}`);
+}
+
+main().catch((e) => fail(e.stack ?? String(e)));

.gitea/workflows/check.yml

@@ -0,0 +1,33 @@
+name: Check
+
+# Compiles every Minecraft version on pull requests, so a change that breaks
+# one version (e.g. a missed or bad port) fails before it's merged instead of
+# in the release build. Merges to master aren't re-checked: the PR already
+# checked that code.
+on:
+  pull_request:
+
+jobs:
+  compile:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      # The JDK comes from the runner's tool cache. `cache: gradle` stores Gradle's
+      # dependencies, Loom's Minecraft cache and the build cache in the runner's
+      # actions cache.
+      - name: Set up Java 21
+        uses: actions/setup-java@v5
+        with:
+          distribution: temurin
+          java-version: 21
+          cache: gradle
+
+      - name: Compile all versions
+        run: |
+          chmod +x gradlew
+          # --continue reports every version that fails, not just the first.
+          ./gradlew compileJava --no-daemon --stacktrace --continue

.gitea/workflows/modrinth.yml

@@ -0,0 +1,36 @@
+name: Publish to Modrinth
+
+# Publishes the jars already attached to a Gitea release (built by the Release
+# workflow) to Modrinth, one version per Minecraft version. Run it manually
+# after smoke-testing the release. It doesn't rebuild anything, and versions
+# already on Modrinth are skipped, so re-running is safe.
+#
+# Needs a MODRINTH_TOKEN repository secret: a Modrinth PAT with the
+# "Create versions" scope.
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: Tag of the Gitea release to publish
+        required: true
+      dry_run:
+        description: Only check and print what would be published
+        type: boolean
+        default: false
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Publish to Modrinth
+        env:
+          TAG: ${{ inputs.tag }}
+          DRY_RUN: ${{ inputs.dry_run }}
+          SERVER_URL: ${{ github.server_url }}
+          REPO: ${{ github.repository }}
+          MODRINTH_TOKEN: ${{ secrets.MODRINTH_TOKEN }}
+        # Node is always available on Gitea runners (it runs JavaScript actions).
+        run: node .gitea/scripts/publish_modrinth.mjs

.gitea/workflows/release.yml

@@ -44,8 +44,11 @@ jobs:
           fi
           echo "Building Saturn Client $MOD_VERSION"
 
+      # The JDK comes from the runner's tool cache. `cache: gradle` stores Gradle's
+      # dependencies, Loom's Minecraft cache and the build cache in the runner's
+      # actions cache.
       - name: Set up Java 21
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: 21
@@ -54,7 +57,8 @@ jobs:
       - name: Build all versions
         run: |
           chmod +x gradlew
-          # buildAll remaps every versions/* project in parallel into build/allJars.
+          # buildAll remaps every Minecraft version (two at a time, to stay within the
+          # Gradle heap) into build/allJars.
           ./gradlew buildAll --no-daemon --stacktrace
 
       - name: Upload jars to the release

README.MD

@@ -1,5 +1,5 @@
 <p align="center">
-  <img src="https://raw.github.com/saturnclientmc/common/master/src/main/resources/assets/saturnclient/textures/logo/logo.png" alt="Saturn Client Logo" width="150px"/>
+  <img src="logo.png" alt="Saturn Client Logo" width="150px"/>
 </p>
 
 <h1 align="center">Saturn Client</h1>
@@ -13,27 +13,47 @@
   <img src="screenshot.png" alt="Saturn Client Screenshot"/>
 </p>
 
----
+## About
-
-## ✨ About
 
 Saturn Client is a free, open-source Minecraft client designed to enhance the gameplay experience while staying lightweight and customizable.
 Our goal is to build a clean, optimized client that the community can contribute to and improve together.
 
-Saturn is currently trying to support multiple versions of minecraft, so please report any issues you are experiencing.
+Saturn runs on Fabric and supports **Minecraft 1.21.4 to 1.21.11**, with one build per version. If something doesn't work on your version, please open an issue.
 
----
+## Features
 
-## 🚀 Features
+- Free cosmetics that don't require real money: cloaks, including animated ones, and hats
-
+- 18 built-in mods: Armor Display, Auto Sprint, Clock, Coordinates, Crosshair, Day Counter, FPS Display, Freelook, Fullbright, Health Display, Keystrokes, Nametags, No Fog, Ping Display, Speedometer, Status Effects, TPS Display and Zoom
-- Free cosmetics that don't require real money
 - Clean and modern UI with animations
 - Ongoing performance improvements
 - Open-source and community-driven
 
----
+## Installation
 
-## 🤝 Contributing
+1. Install [Fabric Loader](https://fabricmc.net/use/) and [Fabric API](https://modrinth.com/mod/fabric-api) for your Minecraft version.
+2. Download the Saturn Client jar for the same version from [Modrinth](https://modrinth.com/mod/saturnclient) or the [releases page](https://git.selimaj.dev/saturnclientmc/saturnclient/releases).
+3. Put it in your `mods` folder.
+
+### Network use
+
+For cosmetics, Saturn Client connects to the Saturn server (`saturn-server.selimaj.dev`). You're signed in the same way as on an online-mode Minecraft server: your client proves who you are to Mojang's session server, and the Saturn server asks Mojang to confirm it. **Your Minecraft access token is only ever sent to Mojang, never to the Saturn server.**
+
+## Building from source
+
+The version-independent code lives in the `common` submodule, so clone with submodules:
+
+```sh
+git clone --recurse-submodules https://git.selimaj.dev/saturnclientmc/saturnclient.git
+cd saturnclient
+
+./gradlew buildAll                    # every version → build/allJars/
+./gradlew :1.21.11:build              # a single version
+./gradlew :1.21.11:runClient          # launch a development client
+```
+
+Building needs Java 21.
+
+## Contributing
 
 We welcome contributions of all kinds:
 
@@ -43,27 +63,23 @@ We welcome contributions of all kinds:
 - Cosmetic designs
 - Suggestions and feedback
 
-If you're an artist or designer interested in helping with cosmetics or visual assets, we’d love to collaborate.
+If you're an artist or designer interested in helping with cosmetics or visual assets, we'd love to collaborate.
 
----
+Most features belong in `common`, which every Minecraft version shares. For code that differs between versions, see the [version guide](VERSION_GUIDE.md): it covers how the versions share one copy of the code with Stonecutter, writing version-specific code, and adding a new Minecraft version. Every pull request is compiled for all versions automatically.
 
-## 🙌 Credits
+## Credits
 
 - **Cloak Rendering:** `IIpho3nix` & Saturn
 - **Who Am I:** `FokshaWasTaken`
-- **Panorama:**  
+- **Panorama:**
   https://www.planetminecraft.com/texture-pack/minecraft-cavesand-cliffs-part-ii-main-menu-panorama/
 
-If any code or assets belong to you and you would like them removed, please open an issue.  
+If any code or assets belong to you and you would like them removed, please open an issue.
 We aim to properly credit all contributors and respect original creators of their respective art.
 
----
+## License
 
-## 📜 License
+Saturn Client is free and open-source under the **Apache-2.0** license.
-
-Saturn Client is free and open-source using **Apache-2.0**
-
----
 
 <p align="center">
   Made with ❤️ by the Saturn Client team

VERSION_GUIDE.md

@@ -1,3 +1,68 @@
 # Version guide
 
-This guide will help you to add or edit minecraft versions.
+How Saturn Client supports several Minecraft versions, and how to change or add one.
+
+## Layout
+
+Every supported Minecraft version (1.21.4 to 1.21.11) builds from one copy of the version-specific code with [Stonecutter](https://stonecutter.kikugie.dev/):
+
+- `common/`: all version-independent code (mods, UI, cosmetics, the server client). It has no Minecraft dependency and reaches the game only through the interfaces in `org.saturnclient.common`.
+- `src/`: the version-specific code (providers, refs, mixins and the three mixin configs), one copy for every version. Where Minecraft's API differs between versions, the code goes behind version comments (see below).
+- `versions/<mc>/`: each version's `gradle.properties` (Minecraft, Yarn, Fabric Loader and Fabric API versions), plus its `build/` and `run/` folders. Each version is the Gradle project `:<mc>`.
+
+`settings.gradle.kts` lists the versions in `stonecutterVersions`. The root `build.gradle.kts` builds each version, and `stonecutter.gradle.kts` configures the root project (shared repositories, the `common` wiring and `buildAll`). Loom's version is `loom_version` in the root `gradle.properties`.
+
+## Version-specific code with Stonecutter
+
+The code in `src/` is always plain Java for the **active** version (1.21.11, set in `stonecutter.gradle.kts`). Code for other versions sits in comments that Stonecutter swaps before building each version:
+
+```java
+//? if >=1.21.9 {
+public void render(MatrixStack matrices, OrderedRenderCommandQueue queue, int light, PlayerEntityRenderState state, float limbAngle, float limbDistance) {
+//?} else
+//public void render(MatrixStack matrices, VertexConsumerProvider consumers, int light, PlayerEntityRenderState state, float limbAngle, float limbDistance) {
+```
+
+A condition without braces covers the next line only. For several lines, use braces and wrap the inactive block in `/* … */`:
+
+```java
+//? if >=1.21.11 {
+import net.minecraft.client.render.RenderLayers;
+import net.minecraft.client.render.RenderSetup;
+//?} else {
+/*import net.minecraft.client.render.RenderPhase.Textures;
+*///?}
+```
+
+Stonecutter rewrites inactive code into its own layout when switching versions (a single inactive line becomes `//code`), so write it that way to begin with, or run a switch and a reset before committing.
+
+When a newer version leaves something out that an older one implements, keep the older version's code behind a condition and mark the newer branch with a `TODO`, rather than dropping it for every version. The panorama in `SaturnScreenFabric.render` is an example. Search for `TODO` to find what newer versions still lack (tracked in #30), and remove the condition once a version gap is fixed.
+
+A whole class that only exists for some versions (such as `MatrixStackMixin`, which only makes sense before 1.21.6's GUI rewrite) can keep an empty class body on the other versions. Before splitting a class like that, look for a hook that works on every version: nametags used to hook label rendering, which 1.21.9 changed, and now replace the name while the render state is built (`LivingEntityRendererMixin`), with no version condition at all. An empty mixin changes nothing, and it keeps the mixin configs the same for every version, since JSON can't hold version comments.
+
+Inactive code sits inside a `/* … */` comment, so it can't contain `/* … */` comments itself: use `//` comments in code that's only active for some versions. For the same reason, don't nest multi-line version blocks; use `//?} else if <condition> {` for more than two version ranges, as in `PlayerEntityRendererMixin` and `SaturnRenderState`.
+
+- `./gradlew "Set active project to <mc>"` (or the Stonecutter IntelliJ plugin) rewrites `src/` so that version's code is the uncommented one, for editing it in the IDE.
+- `./gradlew "Reset active project"` switches back to 1.21.11. **Run it before committing**, so `src/` is always committed with 1.21.11 active.
+- Each version's processed copy is compiled from `versions/<mc>/build/generated/stonecutter/`, which is also where to look when a non-active version fails to compile.
+
+The `emotes` repository uses the same setup, and its `BentCubeRenderer` and `PlayerModelMixin` are small examples of version comments.
+
+## Checking a change on every version
+
+Since every version shares `src/`, a change applies to all of them at once. Code that uses the Minecraft API may still only compile on some, so build them all:
+
+```sh
+./gradlew compileJava
+```
+
+The **Check** workflow runs the same compile on every pull request, so a version a change doesn't compile on fails before merging. Mixins whose target changed fail at startup rather than at compile time, so launch the versions a change touches with `./gradlew :<mc>:runClient`.
+
+For bigger changes, `./gradlew buildAll` builds every version's jar into `build/allJars/`.
+
+## Adding a Minecraft version
+
+1. Create `versions/<new>/gradle.properties` with `minecraft_version`, `yarn_mappings`, `loader_version` and `fabric_api_version` (copy 1.21.11's and change the values; they're listed at <https://fabricmc.net/develop>). Loom's version is shared, in the root `gradle.properties`.
+2. Add `<new>` to `stonecutterVersions` in `settings.gradle.kts`.
+3. Build it with `./gradlew :<new>:compileJava` and put what Minecraft changed behind version comments. Check the mixin configs in `src/main/resources/*.mixins.json` as well: a mixin whose target changed fails at startup, not at compile time, so launch it with `./gradlew :<new>:runClient`.
+4. The release workflow builds everything through `buildAll`, and "Publish to Modrinth" takes the game version from each jar's name, so neither needs changing.

build.gradle

@@ -1,64 +0,0 @@
-subprojects {
-    apply plugin: "java"
-
-    repositories {
-        maven { url "https://maven.fabricmc.net/" }
-        maven { url "https://git.selimaj.dev/api/packages/selimaj-dev/maven" }
-        mavenCentral()
-    }
-
-    dependencies {
-        implementation "de.javagl:obj:0.4.0"
-        implementation "com.formdev:svgSalamander:1.1.4"
-        implementation 'com.fasterxml.jackson.core:jackson-databind:2.17.0'
-        implementation 'com.fasterxml.jackson.core:jackson-annotations:2.17.0'
-        implementation 'com.fasterxml.jackson.core:jackson-core:2.17.0'
-    }
-}
-
-configure(subprojects.findAll { it.name != "common" }) {
-    dependencies {
-        implementation project(":common")
-
-        sourceSets {
-            main {
-                resources {
-                    srcDir project(":common").file("src/main/resources")
-                }
-            }
-        }
-    }
-}
-
-tasks.register("buildAll") {
-    group = "build"
-    description = "Builds all subprojects and collects their remapped jars"
-
-    // Only build remapped jars (not full build)
-    dependsOn subprojects.collect { proj ->
-        proj.tasks.matching { it.name == "remapJar" }
-    }
-
-    doLast {
-        def outputDir = file("$buildDir/allJars")
-        outputDir.mkdirs()
-
-        subprojects.each { proj ->
-            def remapTask = proj.tasks.findByName("remapJar")
-
-            if (remapTask != null) {
-                def jarFile = remapTask.archiveFile.get().asFile
-
-                if (jarFile.exists() && !jarFile.name.contains("sources")) {
-                    copy {
-                        from jarFile
-                        into outputDir
-                        rename { "${jarFile.name}" }
-                    }
-                }
-            }
-        }
-
-        println "All remapped jars collected in: $outputDir"
-    }
-}

build.gradle.kts

@@ -0,0 +1,81 @@
+// Builds one Minecraft version from the shared src/. Stonecutter runs this for each version in
+// stonecutterVersions (settings.gradle.kts), with that version's versions/<v>/gradle.properties.
+plugins {
+    id("net.fabricmc.fabric-loom-remap")
+    `maven-publish`
+}
+
+val minecraftVersion = property("minecraft_version") as String
+val loaderVersion = property("loader_version") as String
+
+version = "${property("mod_version")}+$minecraftVersion"
+group = property("maven_group") as String
+
+base {
+    archivesName = property("archives_base_name") as String
+}
+
+dependencies {
+    minecraft("com.mojang:minecraft:$minecraftVersion")
+    mappings("net.fabricmc:yarn:${property("yarn_mappings")}:v2")
+    modImplementation("net.fabricmc:fabric-loader:$loaderVersion")
+    modImplementation("net.fabricmc.fabric-api:fabric-api:${property("fabric_api_version")}")
+
+    // Saturn's emote library (limb bending, Emotecraft emotes)
+    include(modImplementation("org.saturnclient:emotes-fabric:${property("emotes_version")}+$minecraftVersion")!!)
+
+    implementation(project(":common"))
+
+    for (library in listOf(
+        "dev.selimaj:session-java:0.2.0",
+        "de.javagl:obj:0.4.0",
+        "com.formdev:svgSalamander:1.1.4",
+        "com.fasterxml.jackson.core:jackson-databind:2.17.0",
+        "com.fasterxml.jackson.core:jackson-annotations:2.17.0",
+        "com.fasterxml.jackson.core:jackson-core:2.17.0",
+    )) {
+        include(implementation(library)!!)
+    }
+}
+
+// Injects the version values into fabric.mod.json.
+tasks.processResources {
+    val values = mapOf(
+        "version" to project.version.toString(),
+        "minecraft_version" to minecraftVersion,
+        "loader_version" to loaderVersion,
+    )
+    inputs.properties(values)
+    filteringCharset = "UTF-8"
+    filesMatching("fabric.mod.json") { expand(values) }
+}
+
+tasks.withType<JavaCompile>().configureEach {
+    options.release = 21
+}
+
+java {
+    // Loom attaches the sources jar to remapSourcesJar and build.
+    withSourcesJar()
+    sourceCompatibility = JavaVersion.VERSION_21
+    targetCompatibility = JavaVersion.VERSION_21
+}
+
+tasks.jar {
+    val archivesName = base.archivesName
+    inputs.property("archivesName", archivesName)
+    from("LICENSE") {
+        rename { "${it}_${archivesName.get()}" }
+    }
+    from(project(":common").extensions.getByType<SourceSetContainer>()["main"].output)
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+}
+
+publishing {
+    publications {
+        create<MavenPublication>("mavenJava") {
+            artifactId = property("archives_base_name") as String
+            from(components["java"])
+        }
+    }
+}

gradle.properties

@@ -1,7 +1,15 @@
 org.gradle.jvmargs=-Xmx3G
 org.gradle.parallel=true
+# Reuse task outputs (e.g. compiled classes) when inputs haven't changed.
+org.gradle.caching=true
 
 # IntelliJ IDEA is not yet fully compatible with configuration cache, see: https://github.com/FabricMC/fabric-loom/issues/1349
 org.gradle.configuration-cache=false
 
-mod_version=0.1.1-beta
+mod_version=0.1.3-beta
+
+# Saturn's emote library (git.selimaj.dev/saturnclientmc/emotes)
+emotes_version=0.1.0
+
+# Loom, for every Minecraft version (read in settings.gradle.kts).
+loom_version=1.17.21

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.8.0-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

gradlew

@@ -20,7 +20,7 @@
 
 ##############################################################################
 #
-#   Gradle start up script for POSIX generated by Gradle.
+#   gradlew start up script for POSIX generated by Gradle.
 #
 #   Important for running:
 #
@@ -29,7 +29,7 @@
 #       bash, then to run this script, type that shell name before the whole
 #       command line, like:
 #
-#           ksh Gradle
+#           ksh gradlew
 #
 #       Busybox and similar reduced shells will NOT work, because this script
 #       requires all of these POSIX shell features:
@@ -57,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/3d91ce3b8caaf77ad09f381f43615b715b53f72c/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.

gradlew.bat

@@ -19,12 +19,39 @@
 @if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
-@rem  Gradle startup script for Windows
+@rem  gradlew startup script for Windows
 @rem
 @rem ##########################################################################
 
-@rem Set local scope for the variables with windows NT shell
+@rem Set local scope for the variables, and ensure extensions are enabled
-if "%OS%"=="Windows_NT" setlocal
+setlocal EnableExtensions
+
+@rem Catch executions from older scripts and ensure they exit cleanly.
+@rem This can be removed once we can be reasonably confident that few people
+@rem will be migrating directly to this new wrapper.
+goto afterSafetyNet
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+goto exitWithErrorLevel
+:afterSafetyNet
 
 set DIRNAME=%~dp0
 if "%DIRNAME%"=="" set DIRNAME=.
@@ -45,13 +72,14 @@ set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
 if %ERRORLEVEL% equ 0 goto execute
 
-echo. 1>&2
+1>&2 echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+1>&2 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo. 1>&2
+1>&2 echo.
-echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+1>&2 echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation. 1>&2
+1>&2 echo location of your Java installation.
 
-goto fail
+"%COMSPEC%" /c exit 1
+goto exitWithErrorLevel
 
 :findJavaFromJavaHome
 set JAVA_HOME=%JAVA_HOME:"=%
@@ -59,35 +87,26 @@ set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
 if exist "%JAVA_EXE%" goto execute
 
-echo. 1>&2
+1>&2 echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+1>&2 echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo. 1>&2
+1>&2 echo.
-echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+1>&2 echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation. 1>&2
+1>&2 echo location of your Java installation.
 
-goto fail
+"%COMSPEC%" /c exit 1
+goto exitWithErrorLevel
 
 :execute
 @rem Setup the command line
 
 
 
-@rem Execute Gradle
+@rem Execute gradlew
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+@rem endlocal doesn't take effect until after the line is parsed and variables are expanded
+@rem which allows us to clear the local environment before executing the java command
+endlocal & "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %* & call :exitWithErrorLevel & goto exitWithErrorLevel
 
-:end
+@rem This label must not be changed. We rely on old scripts being able to jump to this point.
-@rem End local scope for the variables with windows NT shell
+:exitWithErrorLevel
-if %ERRORLEVEL% equ 0 goto mainEnd
+@rem Use "%COMSPEC%" /c exit to allow operators to work properly in scripts
-
+"%COMSPEC%" /c exit %ERRORLEVEL%
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-set EXIT_CODE=%ERRORLEVEL%
-if %EXIT_CODE% equ 0 set EXIT_CODE=1
-if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
-exit /b %EXIT_CODE%
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega

settings.gradle

@@ -1,21 +0,0 @@
-pluginManagement {
-    repositories {
-        maven { url "https://maven.fabricmc.net/" }
-        gradlePluginPortal()
-        mavenCentral()
-    }
-}
-
-rootProject.name = "saturn-client"
-
-include("common")
-
-def versionsDir = file("versions")
-
-versionsDir.eachDir { dir ->
-    def version = dir.name
-    def projectName = "mc-${version}"
-
-    include(projectName)
-    project(":${projectName}").projectDir = dir
-}

settings.gradle.kts

@@ -0,0 +1,33 @@
+pluginManagement {
+    repositories {
+        maven("https://maven.fabricmc.net/")
+        maven("https://maven.kikugie.dev/releases")
+        gradlePluginPortal()
+        mavenCentral()
+    }
+
+    // Loom's version for build.gradle.kts, which can't read properties in its plugins block.
+    val loom_version: String by settings
+    plugins {
+        id("net.fabricmc.fabric-loom-remap") version loom_version
+    }
+}
+
+plugins {
+    id("dev.kikugie.stonecutter") version "0.9.8"
+}
+
+rootProject.name = "saturn-client"
+
+include("common")
+
+// Versions built by Stonecutter from the shared src/ (see stonecutter.gradle.kts). Each one's
+// versions/<v>/gradle.properties holds its Minecraft, Yarn and Fabric API versions.
+val stonecutterVersions = listOf("1.21.4", "1.21.5", "1.21.6", "1.21.7", "1.21.8", "1.21.9", "1.21.10", "1.21.11")
+
+stonecutter {
+    create(rootProject) {
+        versions(stonecutterVersions)
+        vcsVersion = "1.21.11"
+    }
+}

src/main/java/org/saturnclient/impl/cosmetics/CloakFeatureRenderer.java

@@ -4,18 +4,26 @@ import java.util.Arrays;
 
 import org.joml.Matrix3f;
 import org.joml.Matrix4f;
+import org.joml.Quaternionf;
 import org.joml.Vector3f;
 import org.joml.Vector4f;
 import org.saturnclient.client.player.SaturnPlayer;
 import org.saturnclient.common.ref.asset.IdentifierRef;
 import org.saturnclient.config.Config;
 import org.saturnclient.cosmetics.Cloaks;
+import org.saturnclient.emotes.core.bend.LimbBend;
+import org.saturnclient.emotes.core.bend.Vec3;
+import org.saturnclient.emotes.fabric.access.BendablePart;
 import org.saturnclient.impl.cosmetics.utils.ShaderUtils;
 import org.saturnclient.saturnclient.SaturnRenderState;
 
+import net.minecraft.client.model.ModelPart;
 import net.minecraft.client.render.OverlayTexture;
 import net.minecraft.client.render.VertexConsumer;
+//? if >=1.21.9 {
 import net.minecraft.client.render.command.OrderedRenderCommandQueue;
+//?} else
+//import net.minecraft.client.render.VertexConsumerProvider;
 import net.minecraft.client.render.entity.equipment.EquipmentModel;
 import net.minecraft.client.render.entity.equipment.EquipmentModelLoader;
 import net.minecraft.client.render.entity.equipment.EquipmentModel.LayerType;
@@ -30,7 +38,6 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.item.equipment.EquipmentAsset;
 import net.minecraft.registry.RegistryKey;
 import net.minecraft.util.math.MathHelper;
-import net.minecraft.util.math.RotationAxis;
 import net.minecraft.util.math.Vec3d;
 
 /**
@@ -380,6 +387,25 @@ public class CloakFeatureRenderer extends FeatureRenderer<PlayerEntityRenderStat
         }
     }
 
+    /**
+     * An emote that bends the torso leans the chest from the hips, so the cloak hangs from where the
+     * top of the back ends up, turned as much as the torso is there.
+     */
+    private static void followBend(MatrixStack matrices, ModelPart body) {
+        LimbBend bend = ((BendablePart) (Object) body).saturnEmotes$getBend();
+        if (bend == null || bend.isStraight()) {
+            return;
+        }
+
+        // The top of the torso, in the body's own pixels
+        float[] top = new float[3];
+        bend.bendPoint(0, 0, 0, top);
+        matrices.translate(top[0] / 16.0f, top[1] / 16.0f, top[2] / 16.0f);
+
+        Vec3 axis = bend.axis();
+        matrices.multiply(new Quaternionf().rotationAxis(bend.angleAt(0), axis.x(), axis.y(), axis.z()));
+    }
+
     // Shift array left and insert new value at the start
     private void updateSegmentValues(float value) {
         // Shift all elements one position to the right (from end to start)
@@ -394,14 +420,24 @@ public class CloakFeatureRenderer extends FeatureRenderer<PlayerEntityRenderStat
     private long lastUpdate = 0;
 
     @Override
-    public void render(MatrixStack matrices, OrderedRenderCommandQueue queue, int light, PlayerEntityRenderState state,
+    public void render(MatrixStack matrices,
-            float limbAngle, float limbDistance) {
+            //? if >=1.21.9 {
+            OrderedRenderCommandQueue output,
+            //?} else
+            //VertexConsumerProvider output,
+            int light, PlayerEntityRenderState state, float limbAngle, float limbDistance) {
         if (state.invisible || !state.capeVisible
+                //? if >=1.21.9 {
                 || state.skinTextures.cape() != null) {
+                //?} else
+                //|| state.skinTextures.capeTexture() != null) {
             return;
         }
 
+        //? if >=1.21.8 {
         SaturnPlayer player = state.getData(SaturnRenderState.saturnDataKey);
+        //?} else
+        //SaturnPlayer player = SaturnPlayer.get(state.name);
 
         if (player == null) {
             return;
@@ -423,17 +459,24 @@ public class CloakFeatureRenderer extends FeatureRenderer<PlayerEntityRenderStat
 
         matrices.push();
 
+        // On the back: the whole player (which emotes like the backflip turn), then the body's position
+        // and turn (which crouching and emotes move), then the chest's lean when an emote bends the torso
+        PlayerEntityModel model = this.getContextModel();
+        //? if >=1.21.5 {
+        model.getRootPart().applyTransform(matrices);
+        model.body.applyTransform(matrices);
+        //?} else {
+        /*model.getRootPart().rotate(matrices);
+        model.body.rotate(matrices);
+        *///?}
+        followBend(matrices, model.body);
+
         matrices.translate(0.0f, 0.0f, 0.12f);
 
         if (this.hasCustomModelForLayer(state.equippedChestStack, LayerType.HUMANOID)) {
             matrices.translate(0.0F, -0.053125F, 0.06875F);
         }
 
-        if (state.isInSneakingPose) {
-            matrices.translate(0, 0.16f, 0.0f);
-            matrices.multiply(RotationAxis.POSITIVE_X.rotationDegrees(29.0f));
-        }
-
         long now = System.currentTimeMillis();
         if (now - lastUpdate >= 20) {
             float velX = Math.min(0.8f, state.field_53537 / 108.0f);
@@ -454,9 +497,12 @@ public class CloakFeatureRenderer extends FeatureRenderer<PlayerEntityRenderStat
 
         horizontalCurve = MathHelper.clamp(state.field_53537 / 150.0f, -1.0f, 1.0f);
 
-        queue.submitCustom(matrices, ShaderUtils.getRenderLayer(customCape), (entry, vertexConsumer) -> {
+        //? if >=1.21.9 {
+        output.submitCustom(matrices, ShaderUtils.getRenderLayer(customCape), (entry, vertexConsumer) -> {
             renderCape(entry, vertexConsumer, state, l, OverlayTexture.DEFAULT_UV);
         });
+        //?} else
+        //renderCape(matrices.peek(), output.getBuffer(ShaderUtils.getRenderLayer(customCape)), state, l, OverlayTexture.DEFAULT_UV);
 
         matrices.pop();
     }

src/main/java/org/saturnclient/impl/cosmetics/HatFeatureRenderer.java

@@ -1,19 +1,20 @@
 package org.saturnclient.impl.cosmetics;
 
-import org.joml.Quaternionf;
 import org.saturnclient.client.player.SaturnPlayer;
 import org.saturnclient.impl.cosmetics.obj.MtlLoader;
 import org.saturnclient.impl.cosmetics.obj.ObjModel;
 import org.saturnclient.saturnclient.SaturnRenderState;
 
 import net.minecraft.client.render.OverlayTexture;
+//? if >=1.21.9 {
 import net.minecraft.client.render.command.OrderedRenderCommandQueue;
+//?} else
+//import net.minecraft.client.render.VertexConsumerProvider;
 import net.minecraft.client.render.entity.feature.FeatureRenderer;
 import net.minecraft.client.render.entity.feature.FeatureRendererContext;
 import net.minecraft.client.render.entity.model.PlayerEntityModel;
 import net.minecraft.client.render.entity.state.PlayerEntityRenderState;
 import net.minecraft.client.util.math.MatrixStack;
-import net.minecraft.client.model.ModelPart;
 
 public class HatFeatureRenderer extends FeatureRenderer<PlayerEntityRenderState, PlayerEntityModel> {
     public HatFeatureRenderer(FeatureRendererContext<PlayerEntityRenderState, PlayerEntityModel> context) {
@@ -21,9 +22,16 @@ public class HatFeatureRenderer extends FeatureRenderer<PlayerEntityRenderState,
     }
 
     @Override
-    public void render(MatrixStack matrices, OrderedRenderCommandQueue queue, int light, PlayerEntityRenderState state,
+    public void render(MatrixStack matrices,
-            float limbAngle, float limbDistance) {
+            //? if >=1.21.9 {
+            OrderedRenderCommandQueue output,
+            //?} else
+            //VertexConsumerProvider output,
+            int light, PlayerEntityRenderState state, float limbAngle, float limbDistance) {
+        //? if >=1.21.8 {
         SaturnPlayer player = state.getData(SaturnRenderState.saturnDataKey);
+        //?} else
+        //SaturnPlayer player = SaturnPlayer.get(state.name);
 
         if (state.invisible || player == null || player.hat.isEmpty()) {
             return;
@@ -31,11 +39,19 @@ public class HatFeatureRenderer extends FeatureRenderer<PlayerEntityRenderState,
 
         matrices.push();
 
-        ModelPart head = this.getContextModel().head;
+        // On the head, as vanilla places head items: the whole player (which emotes like the backflip
-        matrices.multiply(new Quaternionf().rotationZYX(head.roll, head.yaw, head.pitch));
+        // turn), then the head's position, turn and scale (which crouching and emotes move)
+        PlayerEntityModel model = this.getContextModel();
+        //? if >=1.21.5 {
+        model.getRootPart().applyTransform(matrices);
+        model.head.applyTransform(matrices);
+        //?} else {
+        /*model.getRootPart().rotate(matrices);
+        model.head.rotate(matrices);
+        *///?}
 
         ObjModel.cosmetic("hat", player.hat).render(MtlLoader.cosmetic(player.hat),
-                matrices, queue, light,
+                matrices, output, light,
                 OverlayTexture.DEFAULT_UV);
 
         matrices.pop();

src/main/java/org/saturnclient/impl/cosmetics/obj/ObjModel.java

@@ -13,7 +13,10 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import de.javagl.obj.Mtl;
 import de.javagl.obj.Obj;
 import net.minecraft.client.MinecraftClient;
+//? if >=1.21.9 {
 import net.minecraft.client.render.command.OrderedRenderCommandQueue;
+//?} else
+//import net.minecraft.client.render.VertexConsumerProvider;
 import net.minecraft.client.util.math.MatrixStack;
 import net.minecraft.resource.Resource;
 import net.minecraft.resource.ResourceManager;
@@ -78,8 +81,12 @@ public class ObjModel {
         }
     }
 
-    public void render(Map<String, Mtl> mtlMap, MatrixStack matrices, OrderedRenderCommandQueue queue, int light,
+    public void render(Map<String, Mtl> mtlMap, MatrixStack matrices,
-            int overlay) {
+            //? if >=1.21.9 {
+            OrderedRenderCommandQueue output,
+            //?} else
+            //VertexConsumerProvider output,
+            int light, int overlay) {
         matrices.push();
 
         matrices.multiply(net.minecraft.util.math.RotationAxis.POSITIVE_X.rotationDegrees(180.0f));
@@ -95,7 +102,7 @@ public class ObjModel {
             matrices.multiply(net.minecraft.util.math.RotationAxis.POSITIVE_Z.rotationDegrees(config.rotation.z));
         }
 
-        ObjRenderer.renderObj(this.obj, mtlMap, matrices, queue, light, overlay);
+        ObjRenderer.renderObj(this.obj, mtlMap, matrices, output, light, overlay);
 
         matrices.pop();
     }

src/main/java/org/saturnclient/impl/cosmetics/obj/ObjRenderer.java

@@ -12,7 +12,10 @@ import de.javagl.obj.*;
 import net.minecraft.client.MinecraftClient;
 import net.minecraft.client.render.RenderLayer;
 import net.minecraft.client.render.VertexConsumer;
+//? if >=1.21.9 {
 import net.minecraft.client.render.command.OrderedRenderCommandQueue;
+//?} else
+//import net.minecraft.client.render.VertexConsumerProvider;
 import net.minecraft.client.util.math.MatrixStack;
 import net.minecraft.util.Identifier;
 
@@ -28,7 +31,10 @@ public class ObjRenderer {
     public static void renderObj(Obj obj,
             Map<String, Mtl> mtlMap,
             MatrixStack matrices,
-            OrderedRenderCommandQueue queue,
+            //? if >=1.21.9 {
+            OrderedRenderCommandQueue output,
+            //?} else
+            //VertexConsumerProvider output,
             int light,
             int overlay) {
 
@@ -64,19 +70,25 @@ public class ObjRenderer {
             final float fr = r, fg = g, fb = b;
             final Obj finalObj = groupObj;
 
-            queue.submitCustom(matrices, layer, (e, vertexConsumer) -> {
+            //? if >=1.21.9 {
+            output.submitCustom(matrices, layer,
+                    (entry, consumer) -> drawGroup(finalObj, consumer, entry, light, overlay, fr, fg, fb));
+            //?} else
+            //drawGroup(finalObj, output.getBuffer(layer), matrices.peek(), light, overlay, fr, fg, fb);
+        }
+    }
 
-                int faces = finalObj.getNumFaces();
+    private static void drawGroup(Obj obj, VertexConsumer consumer, MatrixStack.Entry entry, int light, int overlay,
+            float r, float g, float b) {
+        int faces = obj.getNumFaces();
 
-                for (int f = 0; f < faces; f++) {
+        for (int f = 0; f < faces; f++) {
-                    ObjFace face = finalObj.getFace(f);
+            ObjFace face = obj.getFace(f);
-                    int verts = face.getNumVertices();
+            int verts = face.getNumVertices();
 
-                    for (int i = verts - 1; i >= 0; i--) {
+            for (int i = verts - 1; i >= 0; i--) {
-                        writeVertex(finalObj, face, i, vertexConsumer, e, light, overlay, fr, fg, fb);
+                writeVertex(obj, face, i, consumer, entry, light, overlay, r, g, b);
-                    }
+            }
-                }
-            });
         }
     }
 

src/main/java/org/saturnclient/impl/cosmetics/utils/IdentifierUtils.java

@@ -43,9 +43,12 @@ public class IdentifierUtils {
             }
 
             SaturnClient.client.execute(() -> {
+                //? if >=1.21.5 {
                 NativeImageBackedTexture texture = new NativeImageBackedTexture(
                         () -> identifier.toString(),
                         nativeImage);
+                //?} else
+                //NativeImageBackedTexture texture = new NativeImageBackedTexture(nativeImage);
 
                 SaturnClient.client.getTextureManager().registerTexture(identifier, texture);
             });

src/main/java/org/saturnclient/impl/cosmetics/utils/ShaderUtils.java

@@ -0,0 +1,93 @@
+package org.saturnclient.impl.cosmetics.utils;
+
+import org.saturnclient.common.ref.asset.IdentifierRef;
+import org.saturnclient.cosmetics.utils.GifUtils;
+
+//? if >=1.21.5
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+
+//? if >=1.21.5
+import net.minecraft.client.gl.RenderPipelines;
+import net.minecraft.client.render.RenderLayer;
+//? if <1.21.5 {
+/*import net.minecraft.client.render.RenderPhase;
+import net.minecraft.client.render.VertexFormat.DrawMode;
+import net.minecraft.client.render.VertexFormats;
+*///?}
+//? if >=1.21.11 {
+import net.minecraft.client.render.RenderLayers;
+import net.minecraft.client.render.RenderSetup;
+import net.minecraft.client.render.block.entity.AbstractEndPortalBlockEntityRenderer;
+//?} else {
+/*import net.minecraft.client.render.RenderPhase.Textures;
+import net.minecraft.client.render.block.entity.EndPortalBlockEntityRenderer;
+*///?}
+import net.minecraft.util.Identifier;
+
+public class ShaderUtils {
+    // Render pipelines exist from 1.21.5; before that the layer names a shader program directly.
+    //? if >=1.21.5 {
+    public static final RenderPipeline END_GATEWAY_PIPELINE = RenderPipelines.register(
+            RenderPipeline.builder(new RenderPipeline.Snippet[] {
+                    RenderPipelines.RENDERTYPE_END_PORTAL_SNIPPET })
+                    .withLocation("pipeline/end_gateway")
+                    .withShaderDefine("PORTAL_LAYERS", 16)
+                    .withCull(false)
+                    .build());
+    //?}
+
+    //? if >=1.21.11 {
+    public static final RenderLayer END_GATEWAY = RenderLayer.of("end_gateway",
+            RenderSetup.builder(END_GATEWAY_PIPELINE)
+                    .texture("Sampler0", AbstractEndPortalBlockEntityRenderer.SKY_TEXTURE)
+                    .texture("Sampler1", AbstractEndPortalBlockEntityRenderer.PORTAL_TEXTURE).build());
+    //?} else if >=1.21.6 {
+    /*public static final RenderLayer END_GATEWAY = RenderLayer.of("end_gateway", 1536, false, false,
+            END_GATEWAY_PIPELINE,
+            RenderLayer.MultiPhaseParameters.builder()
+                    .texture(Textures.create().add(EndPortalBlockEntityRenderer.SKY_TEXTURE, false)
+                            .add(EndPortalBlockEntityRenderer.PORTAL_TEXTURE, false).build())
+                    .build(false));
+    *///?} else if >=1.21.5 {
+    /*public static final RenderLayer END_GATEWAY = RenderLayer.of("end_gateway", 1536, false, false,
+            END_GATEWAY_PIPELINE,
+            RenderLayer.MultiPhaseParameters.builder()
+                    .texture(Textures.create().add(EndPortalBlockEntityRenderer.SKY_TEXTURE, false, false)
+                            .add(EndPortalBlockEntityRenderer.PORTAL_TEXTURE, false, false).build())
+                    .build(false));
+    *///?} else {
+    /*public static final RenderLayer END_GATEWAY = RenderLayer.of(
+            "end_gateway",
+            VertexFormats.POSITION,
+            DrawMode.QUADS,
+            1536,
+            false,
+            false,
+            RenderLayer.MultiPhaseParameters.builder()
+                    .program(RenderLayer.END_GATEWAY_PROGRAM)
+                    .texture(Textures.create()
+                            .add(EndPortalBlockEntityRenderer.SKY_TEXTURE, false, false)
+                            .add(EndPortalBlockEntityRenderer.PORTAL_TEXTURE, false, false)
+                            .build())
+                    .cull(RenderPhase.DISABLE_CULLING)
+                    .build(false));
+    *///?}
+
+    public static RenderLayer getRenderLayer(IdentifierRef texture) {
+        String path = texture.toString();
+        if (path.endsWith(".gif")) {
+            return entityAlpha((Identifier) (Object) GifUtils.get(texture));
+        } else if (path.endsWith("end.png")) {
+            return END_GATEWAY;
+        } else {
+            return entityAlpha((Identifier) (Object) texture);
+        }
+    }
+
+    private static RenderLayer entityAlpha(Identifier texture) {
+        //? if >=1.21.11 {
+        return RenderLayers.entityAlpha(texture);
+        //?} else
+        //return RenderLayer.getEntityAlpha(texture);
+    }
+}

src/main/java/org/saturnclient/impl/features/entity/EntityFeatureImpl.java

@@ -12,10 +12,9 @@ import net.minecraft.entity.LivingEntity;
  * Fabric implementation of {@link EntityFeature}.
  *
  * Crosshair targeting is resolved via {@link MinecraftClient#crosshairTarget}.
- * Entity state for nametag rendering is supplied at render time by
+ * Entity state for nametags is built by LivingEntityRendererMixin, which
- * {@link org.saturnclient.modules.mixins.LivingEntityRendererMixin} which
+ * writes health into the render state and then constructs a
- * writes into the render state; {@link NametagsMixin} then constructs
+ * {@link RenderStateEntityState} from that snapshot for NametagsMod.
- * a {@link RenderStateEntityState} from the already-extracted snapshot.
  */
 public class EntityFeatureImpl implements EntityFeature {
 
@@ -43,7 +42,7 @@ public class EntityFeatureImpl implements EntityFeature {
      * Minecraft render-state object) as a platform-neutral
      * {@link EntityState} for use by {@link NametagsFeature}.
      *
-     * This is constructed inside {@link NametagsMixin} where both the
+     * This is constructed in LivingEntityRendererMixin, where both the
      * render-state mixin interface and the entity name are available.
      */
     public static final class RenderStateEntityState implements EntityState {

src/main/java/org/saturnclient/impl/features/entity/HealthRenderState.java

@@ -7,8 +7,8 @@ import org.saturnclient.common.feature.EntityFeature;
  * {@link net.minecraft.client.render.entity.state.LivingEntityRenderState}.
  *
  * Carries the entity's health snapshot and classification into the render
- * pipeline so that {@link NametagsMixin} can read them without touching
+ * render state, so NametagsMod's replacement nametag (applied in
- * the live entity again.
+ * LivingEntityRendererMixin) can use them without touching the live entity again.
  */
 public interface HealthRenderState {
 

src/main/java/org/saturnclient/impl/features/mixins/entity/CameraMixin.java

@@ -13,7 +13,10 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 import net.minecraft.client.network.ClientPlayerEntity;
 import net.minecraft.client.render.Camera;
 import net.minecraft.entity.Entity;
+//? if >=1.21.11 {
 import net.minecraft.world.World;
+//?} else
+//import net.minecraft.world.BlockView;
 
 @Mixin(Camera.class)
 public abstract class CameraMixin {
@@ -25,7 +28,10 @@ public abstract class CameraMixin {
 
     @Inject(method = "update", at = @At(value = "INVOKE", target = "Lnet/minecraft/client/render/Camera;setRotation(FF)V", ordinal = 1, shift = At.Shift.AFTER))
     public void lockRotation(
+            //? if >=1.21.11 {
             World focusedBlock,
+            //?} else
+            //BlockView focusedBlock,
             Entity cameraEntity,
             boolean isThirdPerson,
             boolean isFrontFacing,

src/main/java/org/saturnclient/impl/features/mixins/render/BackgroundRendererMixin.java

@@ -1,13 +1,19 @@
 package org.saturnclient.impl.features.mixins.render;
 
+//? if >=1.21.6 {
 import net.minecraft.client.render.fog.FogRenderer;
+//?} else
+//import net.minecraft.client.render.BackgroundRenderer;
 
 import org.saturnclient.mod.mods.NoFogMod;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.ModifyVariable;
 
+//? if >=1.21.6 {
 @Mixin(FogRenderer.class)
+//?} else
+//@Mixin(BackgroundRenderer.class)
 public class BackgroundRendererMixin {
     // fog
     @ModifyVariable(method = "applyFog", at = @At("HEAD"), ordinal = 0, argsOnly = true)

src/main/java/org/saturnclient/impl/features/mixins/render/GameRendererMixin.java

@@ -1,12 +1,20 @@
 package org.saturnclient.impl.features.mixins.render;
 
+//? if >=1.21.6
+import net.minecraft.client.MinecraftClient;
+//? if >=1.21.6
+import net.minecraft.client.option.GameOptions;
 import net.minecraft.client.render.GameRenderer;
 
+//? if >=1.21.6
+import org.saturnclient.impl.ui.SaturnScreenFabric;
 import org.saturnclient.mod.mods.FreelookMod;
 import org.saturnclient.mod.mods.ZoomMod;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
+//? if >=1.21.6
+import org.spongepowered.asm.mixin.injection.Redirect;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 
 /**
@@ -38,4 +46,18 @@ public class GameRendererMixin {
             cir.setReturnValue(zoomedFov);
         }
     }
+
+    //? if >=1.21.6 {
+    // From 1.21.6 the menu blur's strength is the vanilla setting, read here every frame. While a
+    // Saturn screen is open, it's Saturn's background blur instead, faded in with the screen.
+    @Redirect(method = "render", at = @At(value = "INVOKE",
+            target = "Lnet/minecraft/client/option/GameOptions;getMenuBackgroundBlurrinessValue()I"))
+    private int useSaturnBlur(GameOptions options) {
+        if (MinecraftClient.getInstance().currentScreen instanceof SaturnScreenFabric saturnScreen) {
+            return saturnScreen.screen.getBackgroundBlur();
+        }
+
+        return options.getMenuBackgroundBlurrinessValue();
+    }
+    //?}
 }

src/main/java/org/saturnclient/impl/features/mixins/render/LivingEntityRenderStateMixin.java

@@ -18,8 +18,8 @@ import org.spongepowered.asm.mixin.Unique;
  *
  * The stored values are written by
  * {@link LivingEntityRendererMixin#saturn$captureHealth} each time a
- * render state is extracted from a live entity, and read by
+ * render state is extracted from a live entity, and read there right away for
- * {@link NametagsMixin} at render time.
+ * NametagsMod's replacement nametag.
  */
 @Mixin(LivingEntityRenderState.class)
 public class LivingEntityRenderStateMixin implements HealthRenderState {

src/main/java/org/saturnclient/impl/features/mixins/render/LivingEntityRendererMixin.java

@@ -6,24 +6,25 @@ import net.minecraft.entity.LivingEntity;
 import net.minecraft.entity.mob.HostileEntity;
 import net.minecraft.entity.passive.PassiveEntity;
 import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.text.Text;
 
 import org.saturnclient.common.feature.EntityFeature;
+import org.saturnclient.impl.features.entity.EntityFeatureImpl;
 import org.saturnclient.impl.features.entity.HealthRenderState;
+import org.saturnclient.mod.mods.NametagsMod;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
 /**
- * Captures each living entity's health and type into the render state
+ * Captures each living entity's health and type into the render state during
- * during {@code updateRenderState}, so that nametag rendering can read
+ * {@code updateRenderState}, and applies {@link NametagsMod}'s replacement nametag to the state's
- * them without touching the live entity again.
+ * display name.
  *
- * Previously imported {@code NametagsInterface.EntityType}; now uses
+ * Replacing the name here, while the render state is built, works the same on every version. Hooking
- * {@link EntityFeature.EntityType} — the canonical enum shared across
+ * label rendering instead doesn't: 1.21.9 moved it to the render command queue. Player role icons are
- * the whole module system.
+ * added after this, in PlayerEntityRendererMixin.
- *
- * The injection target and strategy are unchanged from the original.
  */
 @Mixin(LivingEntityRenderer.class)
 public abstract class LivingEntityRendererMixin<T extends LivingEntity, S extends LivingEntityRenderState> {
@@ -47,5 +48,15 @@ public abstract class LivingEntityRendererMixin<T extends LivingEntity, S extend
             type = EntityFeature.EntityType.OTHER;
 
         hrs.saturn$setEntityType(type);
+
+        // Only entities that already show a label get a replacement one, as when this hooked label
+        // rendering.
+        if (NametagsMod.shouldReplaceName() && state.displayName != null) {
+            String replacement = NametagsMod.getNametagString(
+                    new EntityFeatureImpl.RenderStateEntityState(state.displayName.getString(), hrs));
+            if (replacement != null) {
+                state.displayName = Text.literal(replacement);
+            }
+        }
     }
 }

src/main/java/org/saturnclient/impl/features/player/PlayerFeatureImpl.java

@@ -169,22 +169,34 @@ public class PlayerFeatureImpl implements PlayerFeature {
 
     @Override
     public ItemStackRef getHelmet() {
+        //? if >=1.21.5 {
         return wrap(hasPlayer() ? player().getEquippedStack(EquipmentSlot.HEAD) : ItemStack.EMPTY);
+        //?} else
+        //return wrap(hasPlayer() ? player().getInventory().armor.get(3) : ItemStack.EMPTY);
     }
 
     @Override
     public ItemStackRef getChestplate() {
+        //? if >=1.21.5 {
         return wrap(hasPlayer() ? player().getEquippedStack(EquipmentSlot.CHEST) : ItemStack.EMPTY);
+        //?} else
+        //return wrap(hasPlayer() ? player().getInventory().armor.get(2) : ItemStack.EMPTY);
     }
 
     @Override
     public ItemStackRef getLeggings() {
+        //? if >=1.21.5 {
         return wrap(hasPlayer() ? player().getEquippedStack(EquipmentSlot.LEGS) : ItemStack.EMPTY);
+        //?} else
+        //return wrap(hasPlayer() ? player().getInventory().armor.get(1) : ItemStack.EMPTY);
     }
 
     @Override
     public ItemStackRef getBoots() {
+        //? if >=1.21.5 {
         return wrap(hasPlayer() ? player().getEquippedStack(EquipmentSlot.FEET) : ItemStack.EMPTY);
+        //?} else
+        //return wrap(hasPlayer() ? player().getInventory().armor.get(0) : ItemStack.EMPTY);
     }
 
     // ---------------------------------------------------------------

src/main/java/org/saturnclient/impl/features/world/WorldFeatureImpl.java

@@ -31,7 +31,7 @@ public class WorldFeatureImpl implements WorldFeature {
      */
     @Override
     public long getWorldAge() {
-        // return hasWorld() ? mc.world.getTime() : 0L;
+        // World.getTime() was a shortcut for this, and 1.21.11 removed it.
-        return 0L;
+        return hasWorld() ? mc.world.getLevelProperties().getTime() : 0L;
     }
 }

src/main/java/org/saturnclient/impl/mixins/MatrixStackMixin.java

@@ -1,14 +1,25 @@
 package org.saturnclient.impl.mixins;
 
-import org.joml.Quaternionfc;
-import org.saturnclient.common.ref.render.MatrixStackRef;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Shadow;
 import net.minecraft.client.util.math.MatrixStack;
+import org.spongepowered.asm.mixin.Mixin;
+//? if <1.21.6 {
+/*import org.saturnclient.common.ref.render.MatrixStackRef;
+//? if >=1.21.5
+import org.joml.Quaternionfc;
+//? if <1.21.5
+//import org.joml.Quaternionf;
+import org.spongepowered.asm.mixin.Shadow;
 import net.minecraft.util.math.RotationAxis;
+*///?}
 
+/**
+ * Makes MatrixStack a MatrixStackRef, for GUI drawing before 1.21.6. From 1.21.6 the GUI uses a 2D
+ * Matrix3x2fStack (Matrix3x2fStackRef) instead, so this mixin is empty but stays registered, keeping
+ * impl.mixins.json the same for every version.
+ */
 @Mixin(MatrixStack.class)
-public abstract class MatrixStackMixin implements MatrixStackRef {
+//? if <1.21.6 {
+/*public abstract class MatrixStackMixin implements MatrixStackRef {
     @Shadow
     public abstract void push();
 
@@ -22,10 +33,16 @@ public abstract class MatrixStackMixin implements MatrixStackRef {
     public abstract void scale(float x, float y, float z);
 
     @Shadow
+    //? if >=1.21.5
     public abstract void multiply(Quaternionfc quaternion);
+    //? if <1.21.5
+    //public abstract void multiply(Quaternionf quaternion);
 
     @Shadow
+    //? if >=1.21.5
     public abstract void multiply(Quaternionfc quaternion, float originX, float originY, float originZ);
+    //? if <1.21.5
+    //public abstract void multiply(Quaternionf quaternion, float originX, float originY, float originZ);
 
     @Override
     public void translate(float x, float y) {
@@ -46,4 +63,6 @@ public abstract class MatrixStackMixin implements MatrixStackRef {
     public void rotate(float angle) {
         multiply(RotationAxis.NEGATIVE_Z.rotationDegrees(angle));
     }
-}
+}
+*///?} else
+public abstract class MatrixStackMixin {}

src/main/java/org/saturnclient/impl/mixins/MinecraftClientMixin.java

@@ -141,7 +141,10 @@ public abstract class MinecraftClientMixin implements MinecraftClientRef {
         if (entry == null)
             return null;
 
+        //? if >=1.21.9 {
         return entry.getProfile().name();
+        //?} else
+        //return entry.getProfile().getName();
     }
 
     @Override
@@ -157,6 +160,9 @@ public abstract class MinecraftClientMixin implements MinecraftClientRef {
         if (entry == null)
             return null;
 
+        //? if >=1.21.9 {
         return entry.getProfile().id();
+        //?} else
+        //return entry.getProfile().getId();
     }
 }

src/main/java/org/saturnclient/impl/mixins/StatusEffectMixin.java

@@ -3,6 +3,8 @@ package org.saturnclient.impl.mixins;
 import org.saturnclient.common.ref.asset.IdentifierRef;
 import org.saturnclient.common.ref.asset.SpriteRef;
 import org.saturnclient.common.ref.game.EffectRef;
+//? if <1.21.9
+//import org.saturnclient.saturnclient.SaturnClient;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Shadow;
 
@@ -29,15 +31,24 @@ public abstract class StatusEffectMixin implements EffectRef {
 
     @Override
     public SpriteRef getIcon() {
+        // 1.21.9 changed the GUI atlas, so newer versions draw the effect's texture (getIconId) instead.
+        //? if >=1.21.9 {
         return null;
+        //?} else if >=1.21.6 {
+        //return (SpriteRef) SaturnClient.client.getGuiAtlasManager().getSprite((InGameHud.getEffectTexture(getEffectType())));
+        //?} else
+        //return (SpriteRef) SaturnClient.client.getStatusEffectSpriteManager().getSprite(getEffectType());
     }
 
+    // Before 1.21.6 there's no InGameHud.getEffectTexture; getIcon's sprite is used there instead.
+    //? if >=1.21.6 {
     @Override
     public IdentifierRef getIconId() {
         Identifier id = InGameHud.getEffectTexture(getEffectType());
 
         return IdentifierRef.of(id.getNamespace(), "textures/" + id.getPath() + ".png");
     }
+    //?}
 
     @Override
     public String getInfiniteText() {

src/main/java/org/saturnclient/impl/mixins/TextMixin.java

@@ -7,6 +7,7 @@ import org.spongepowered.asm.mixin.Mixin;
 
 import net.minecraft.text.Style;
 import net.minecraft.text.Text;
+//? if >=1.21.9
 import net.minecraft.text.StyleSpriteSource.Font;
 import net.minecraft.util.Identifier;
 
@@ -15,7 +16,10 @@ public interface TextMixin extends TextRef {
 
     @Override
     public default TextRef withFont(IdentifierRef font) {
+        //? if >=1.21.9 {
         return (TextRef) (Text) (((Text) this).copy().setStyle(Style.EMPTY.withFont(new Font((Identifier) (Object) font))));
+        //?} else
+        //return (TextRef) (((Text) this).copy().setStyle(Style.EMPTY.withFont((Identifier) (Object) font)));
     }
 
     @Override

src/main/java/org/saturnclient/impl/provider/SaturnProviderImpl.java

@@ -2,25 +2,29 @@ package org.saturnclient.impl.provider;
 
 import java.awt.image.BufferedImage;
 import java.util.UUID;
+import java.util.function.Supplier;
 
 import net.fabricmc.loader.api.FabricLoader;
 import net.minecraft.client.MinecraftClient;
 import net.minecraft.client.toast.SystemToast;
+//? if >=1.21.9 {
+import net.minecraft.entity.player.SkinTextures;
+//?} else
+//import net.minecraft.client.util.SkinTextures;
 import net.minecraft.text.Text;
+import net.minecraft.util.Identifier;
 
 import org.saturnclient.common.provider.SaturnProvider;
 import org.saturnclient.common.ref.asset.IdentifierRef;
 import org.saturnclient.common.ref.game.MinecraftClientRef;
+import org.saturnclient.cosmetics.Emotes;
 import org.saturnclient.impl.cosmetics.utils.IdentifierUtils;
 import org.saturnclient.saturnclient.SaturnClient;
 
-import dev.kosmx.playerAnim.api.layered.AnimationStack;
-import dev.kosmx.playerAnim.minecraftApi.PlayerAnimationAccess;
-import dev.kosmx.playerAnim.minecraftApi.PlayerAnimationRegistry;
-import net.minecraft.client.network.AbstractClientPlayerEntity;
-import net.minecraft.util.Identifier;
-
 public class SaturnProviderImpl implements SaturnProvider {
+    /** Looks up the signed-in player's skin; made once, since the skin provider caches it */
+    private Supplier<Identifier> playerSkin;
+
     @Override
     public MinecraftClientRef getClient() {
         return (MinecraftClientRef) SaturnClient.client;
@@ -28,31 +32,13 @@ public class SaturnProviderImpl implements SaturnProvider {
 
     @Override
     public void playEmote(UUID fromPlayerUuid, String emoteIdOrNull) {
-        if (SaturnClient.client == null || SaturnClient.client.world == null) {
+        if (fromPlayerUuid == null) {
             return;
         }
-
+        // An empty or unknown ID stops whatever the player is playing.
-        for (AbstractClientPlayerEntity player : SaturnClient.client.world.getPlayers()) {
+        Emotes.get(emoteIdOrNull == null ? "" : emoteIdOrNull).ifPresentOrElse(
-            if (!player.getUuid().equals(fromPlayerUuid)) {
+                emote -> org.saturnclient.emotes.fabric.Emotes.play(fromPlayerUuid, emote.animation()),
-                continue;
+                () -> org.saturnclient.emotes.fabric.Emotes.stop(fromPlayerUuid));
-            }
-
-            AnimationStack animationStack = PlayerAnimationAccess.getPlayerAnimLayer(player);
-
-            if (emoteIdOrNull != null && !emoteIdOrNull.isEmpty()) {
-                if (animationStack.isActive() && animationStack.getPriority() == 1000) {
-                    animationStack.removeLayer(1000);
-                }
-                animationStack.addAnimLayer(1000,
-                        PlayerAnimationRegistry
-                                .getAnimation(Identifier.of("saturnclient", emoteIdOrNull))
-                                .playAnimation());
-            } else {
-                animationStack.removeLayer(1000);
-            }
-
-            break;
-        }
     }
 
     @Override
@@ -73,6 +59,23 @@ public class SaturnProviderImpl implements SaturnProvider {
     /** Shown longer than the vanilla default, since these ask the player to act. */
     private static final SystemToast.Type WARNING_TOAST = new SystemToast.Type(15_000L);
 
+    @Override
+    public IdentifierRef getPlayerSkin() {
+        if (playerSkin == null) {
+            MinecraftClient client = MinecraftClient.getInstance();
+            // 1.21.9 moved SkinTextures and renamed the skin provider's lookup.
+            //? if >=1.21.9 {
+            Supplier<SkinTextures> textures = client.getSkinProvider().supplySkinTextures(client.getGameProfile(), false);
+            playerSkin = () -> textures.get().body().texturePath();
+            //?} else {
+            /*Supplier<SkinTextures> textures = client.getSkinProvider().getSkinTexturesSupplier(client.getGameProfile());
+            playerSkin = () -> textures.get().texture();
+            *///?}
+        }
+
+        return (IdentifierRef) (Object) playerSkin.get();
+    }
+
     @Override
     public String getModVersion() {
         return FabricLoader.getInstance().getModContainer(SaturnClient.MOD_ID)

src/main/java/org/saturnclient/impl/ui/EntityDrawerImpl.java

@@ -0,0 +1,175 @@
+package org.saturnclient.impl.ui;
+
+// Entities in the UI are drawn through the GUI render state from 1.21.6, and straight into vertex
+// consumers before. This file has one implementation for each side.
+//? if >=1.21.6 {
+import org.jetbrains.annotations.Nullable;
+import org.joml.Quaternionf;
+import org.joml.Vector3f;
+import org.saturnclient.saturnclient.SaturnClient;
+import org.saturnclient.ui.RenderScope;
+import org.saturnclient.ui.components.SkinPreview.EntityDrawer;
+
+//? if >=1.21.9 {
+import net.minecraft.client.render.entity.EntityRenderManager;
+//?} else
+//import net.minecraft.client.render.entity.EntityRenderDispatcher;
+import net.minecraft.client.render.entity.EntityRenderer;
+import net.minecraft.client.render.entity.state.EntityRenderState;
+import net.minecraft.entity.LivingEntity;
+
+public class EntityDrawerImpl implements EntityDrawer {
+    @Override
+    public boolean render(RenderScope renderScope, int width, int height, float yaw) {
+        LivingEntity entity = SaturnClient.client.player;
+
+        if (entity == null) {
+            return false;
+        }
+
+        // The player is about 1.8 blocks tall; leave some room above and below.
+        drawEntity(renderScope, 0, 0, width, height, (int) (height / 2.2F), 0.0625F, yaw, entity);
+        return true;
+    }
+
+    // Draws the entity in the box, turned by yaw degrees (0 faces the viewer) with its head straight.
+    public static void drawEntity(RenderScope renderScope, int x1, int y1, int x2, int y2, int size, float scale,
+            float yaw, LivingEntity entity) {
+        renderScope.enableScissor(x1, y1, x2, y2);
+        Quaternionf quaternionf = (new Quaternionf()).rotateZ((float) Math.PI);
+        Quaternionf quaternionf2 = new Quaternionf();
+        float j = entity.bodyYaw;
+        float k = entity.getYaw();
+        float l = entity.getPitch();
+        float m = entity.lastHeadYaw;
+        float n = entity.headYaw;
+        entity.bodyYaw = 180.0F + yaw;
+        entity.setYaw(180.0F + yaw);
+        entity.setPitch(0.0F);
+        entity.headYaw = entity.getYaw();
+        entity.lastHeadYaw = entity.getYaw();
+        float o = entity.getScale();
+        Vector3f vector3f = new Vector3f(0.0F, entity.getHeight() / 2.0F + scale * o, 0.0F);
+        float p = (float) size / o;
+        drawEntity(renderScope, x1, y1, x2, y2, p, vector3f, quaternionf, quaternionf2, entity);
+        entity.bodyYaw = j;
+        entity.setYaw(k);
+        entity.setPitch(l);
+        entity.lastHeadYaw = m;
+        entity.headYaw = n;
+        renderScope.disableScissor();
+    }
+
+    public static void drawEntity(RenderScope renderScope, int x1, int y1, int x2, int y2, float scale,
+            Vector3f translation, Quaternionf rotation, @Nullable Quaternionf overrideCameraAngle,
+            LivingEntity entity) {
+        //? if >=1.21.9 {
+        EntityRenderManager entityRenderDispatcher = SaturnClient.client.getEntityRenderDispatcher();
+        //?} else
+        //EntityRenderDispatcher entityRenderDispatcher = SaturnClient.client.getEntityRenderDispatcher();
+        EntityRenderer<? super LivingEntity, ?> entityRenderer = entityRenderDispatcher.getRenderer(entity);
+        EntityRenderState entityRenderState = entityRenderer.getAndUpdateRenderState(entity, 1.0F);
+        //? if <1.21.11
+        //entityRenderState.hitbox = null;
+
+        if (renderScope instanceof RenderScopeImpl i)
+            i.addEntity(entityRenderState, scale, translation, rotation, overrideCameraAngle, x1, y1, x2, y2);
+    }
+}
+//?} else {
+/*import org.jetbrains.annotations.Nullable;
+import org.joml.Quaternionf;
+import org.joml.Vector3f;
+import org.saturnclient.saturnclient.SaturnClient;
+import org.saturnclient.ui.RenderScope;
+import org.saturnclient.ui.components.SkinPreview.EntityDrawer;
+
+import net.minecraft.client.render.DiffuseLighting;
+import net.minecraft.client.render.entity.EntityRenderDispatcher;
+import net.minecraft.entity.LivingEntity;
+
+public class EntityDrawerImpl implements EntityDrawer {
+    // Draws the entity in the box, turned by yaw degrees (0 faces the viewer) with its head straight.
+    public static void drawEntity(RenderScope renderScope, int x1, int y1, int x2, int y2, int size, float f,
+            float yaw, LivingEntity entity) {
+        float g = (float) (x1 + x2) / 2.0F;
+        float h = (float) (y1 + y2) / 2.0F;
+        renderScope.enableScissor(x1, y1, x2, y2);
+        Quaternionf quaternionf = (new Quaternionf()).rotateZ(3.1415927F);
+        float k = entity.bodyYaw;
+        float l = entity.getYaw();
+        float m = entity.getPitch();
+        //? if >=1.21.5
+        float n = entity.lastHeadYaw;
+        //? if <1.21.5
+        //float n = entity.prevHeadYaw;
+        float o = entity.headYaw;
+        entity.setYaw(180.0F + yaw);
+        entity.bodyYaw = 180.0F + yaw;
+        entity.setPitch(0.0F);
+        entity.headYaw = entity.getYaw();
+        //? if >=1.21.5
+        entity.lastHeadYaw = entity.getHeadYaw();
+        //? if <1.21.5
+        //entity.prevHeadYaw = entity.getHeadYaw();
+        entity.setCustomNameVisible(false);
+
+        float p = entity.getScale();
+        Vector3f vector3f = new Vector3f(0.0F, entity.getHeight() / 2.0F + f * p, 0.0F);
+        float q = (float) size / p;
+        drawEntity(renderScope, g, h, q, vector3f, quaternionf, null, entity);
+
+        entity.setCustomNameVisible(true);
+        entity.bodyYaw = k;
+        entity.setYaw(l);
+        entity.setPitch(m);
+        //? if >=1.21.5
+        entity.lastHeadYaw = n;
+        //? if <1.21.5
+        //entity.prevHeadYaw = n;
+        entity.headYaw = o;
+        renderScope.disableScissor();
+    }
+
+    public static void drawEntity(RenderScope renderScope, float x, float y, float size, Vector3f vector3f,
+            Quaternionf quaternionf, @Nullable Quaternionf quaternionf2, LivingEntity entity) {
+        if (renderScope instanceof RenderScopeImpl scopeImpl) {
+            scopeImpl.matrices.push();
+            scopeImpl.matrices.translate((double) x, (double) y, 0);
+            scopeImpl.matrices.scale(size, size, -size);
+            scopeImpl.matrices.translate(vector3f.x, vector3f.y, vector3f.z);
+            scopeImpl.matrices.multiply(quaternionf);
+            scopeImpl.draw();
+            //? if >=1.21.5
+            DiffuseLighting.disableGuiDepthLighting();
+            //? if <1.21.5
+            //DiffuseLighting.method_34742();
+            EntityRenderDispatcher entityRenderDispatcher = SaturnClient.client.getEntityRenderDispatcher();
+
+            entityRenderDispatcher.setRenderShadows(false);
+            scopeImpl.draw((vertexConsumers) -> {
+                entityRenderDispatcher.render(entity, 0.0, 0.0, 0.0, 1.0F,
+                        scopeImpl.matrices, vertexConsumers, 15728880);
+            });
+
+            scopeImpl.draw();
+            entityRenderDispatcher.setRenderShadows(true);
+            scopeImpl.getMatrixStack().pop();
+            DiffuseLighting.enableGuiDepthLighting();
+        }
+
+    }
+
+    @Override
+    public boolean render(RenderScope renderScope, int width, int height, float yaw) {
+        LivingEntity entity = SaturnClient.client.player;
+        if (entity == null) {
+            return false;
+        }
+
+        // The player is about 1.8 blocks tall; leave some room above and below.
+        drawEntity(renderScope, 0, 0, width, height, (int) (height / 2.2F), 0.0625F, yaw, entity);
+        return true;
+    }
+}
+*///?}

src/main/java/org/saturnclient/impl/ui/GlassRenderer.java

@@ -0,0 +1,380 @@
+package org.saturnclient.impl.ui;
+
+// Glass: a copy of the game behind the screen, blurred, drawn through each panel's rounded rectangle
+// texture as a mask. There's a copy for each blur strength in use (menus and widgets have their own),
+// blurred with vanilla's blur at that radius, so it holds the world or panorama without the screen's
+// own animated background blur.
+//
+// The GUI rewrites split this into three implementations:
+// - 1.21.6+: the GUI is drawn after the screen builds it, so the copy is taken from the main
+//   framebuffer while the screen builds its GUI, and glass is a GUI element with its own pipeline
+//   (shaders/core/glass.fsh). The blur is vanilla's effect rebuilt with the radius set.
+// - 1.21.5: the screen draws straight into the framebuffer, blurring it first, so the game is saved
+//   before the blur (saveBackground). Glass is a render layer with its own pipeline
+//   (shaders/core/glass_pre_1_21_6.fsh), and the blur takes the radius as it runs.
+// - 1.21.4: as 1.21.5, with GL framebuffers copied by blitting, and a shader program
+//   (shaders/core/glass.json) instead of a pipeline.
+//? if >=1.21.6 {
+import java.io.Reader;
+import java.util.HashMap;
+import java.util.Map;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.textures.FilterMode;
+import com.mojang.blaze3d.textures.GpuTextureView;
+import com.mojang.serialization.JsonOps;
+
+import org.saturnclient.config.Config;
+import org.saturnclient.saturnclient.SaturnClient;
+
+import net.minecraft.client.gl.Framebuffer;
+import net.minecraft.client.gl.PostEffectPipeline;
+import net.minecraft.client.gl.PostEffectProcessor;
+import net.minecraft.client.gl.RenderPipelines;
+import net.minecraft.client.gl.SimpleFramebuffer;
+import net.minecraft.client.render.DefaultFramebufferSet;
+import net.minecraft.client.render.ProjectionMatrix2;
+import net.minecraft.client.texture.AbstractTexture;
+import net.minecraft.client.texture.TextureSetup;
+import net.minecraft.client.util.Pool;
+import net.minecraft.util.Identifier;
+
+public final class GlassRenderer {
+    public static final RenderPipeline PIPELINE = RenderPipeline.builder(RenderPipelines.POSITION_TEX_COLOR_SNIPPET)
+            .withLocation(Identifier.of("saturnclient", "pipeline/glass"))
+            .withFragmentShader(Identifier.of("saturnclient", "core/glass"))
+            .withSampler("Sampler1")
+            // The transforms block ends with LineWidth before 1.21.11 (see glass.fsh).
+            //? if <1.21.11
+            //.withShaderDefine("HAS_LINE_WIDTH")
+            .build();
+
+    private static final Identifier BLUR = Identifier.ofVanilla("post_effect/blur.json");
+    private static final ProjectionMatrix2 PROJECTION = new ProjectionMatrix2("saturn glass", 0.1f, 1000f, false);
+    // For the blurs' intermediate targets, freed once unused for a few frames
+    private static final Pool POOL = new Pool(3);
+
+    // By blur strength. A blur that failed to load is kept as null, so it isn't retried every frame.
+    private static final Map<Integer, PostEffectProcessor> BLURS = new HashMap<>();
+    private static final Map<Integer, SimpleFramebuffer> BACKDROPS = new HashMap<>();
+
+    private GlassRenderer() {
+    }
+
+    // Copies the main framebuffer and blurs the copy by blur. Call once a frame for each blur, while
+    // the screen builds its GUI, before drawing glass with it.
+    public static void captureBackdrop(int blur) {
+        Framebuffer main = SaturnClient.client.getFramebuffer();
+        int width = main.textureWidth;
+        int height = main.textureHeight;
+
+        SimpleFramebuffer backdrop = BACKDROPS.get(blur);
+        if (backdrop == null) {
+            backdrop = new SimpleFramebuffer("Saturn glass " + blur, width, height, false);
+            BACKDROPS.put(blur, backdrop);
+        } else if (backdrop.textureWidth != width || backdrop.textureHeight != height) {
+            backdrop.resize(width, height);
+        }
+        //? if <1.21.11
+        //backdrop.getColorAttachment().setTextureFilter(FilterMode.LINEAR, false);
+
+        RenderSystem.getDevice().createCommandEncoder().copyTextureToTexture(
+                main.getColorAttachment(), backdrop.getColorAttachment(), 0, 0, 0, 0, 0, width, height);
+
+        PostEffectProcessor processor = getBlur(blur);
+        if (processor != null) {
+            processor.render(backdrop, POOL);
+        }
+        POOL.decrementLifespan();
+        release(blur);
+    }
+
+    // The mask, then the copy blurred by blur, as the glass pipeline samples them
+    public static TextureSetup textures(AbstractTexture mask, int blur) {
+        GpuTextureView backdrop = BACKDROPS.get(blur).getColorAttachmentView();
+        //? if >=1.21.11
+        return TextureSetup.of(mask.getGlTextureView(), mask.getSampler(), backdrop, RenderSystem.getSamplerCache().get(FilterMode.LINEAR));
+        //? if <1.21.11
+        //return TextureSetup.of(mask.getGlTextureView(), backdrop);
+    }
+
+    // Frees the copies and blurs of strengths that are no longer set, besides kept
+    private static void release(int kept) {
+        BACKDROPS.entrySet().removeIf(entry -> {
+            boolean unused = entry.getKey() != kept && !isSet(entry.getKey());
+            if (unused) {
+                entry.getValue().delete();
+            }
+            return unused;
+        });
+        BLURS.entrySet().removeIf(entry -> {
+            boolean unused = entry.getKey() != kept && !isSet(entry.getKey());
+            if (unused && entry.getValue() != null) {
+                entry.getValue().close();
+            }
+            return unused;
+        });
+    }
+
+    private static boolean isSet(int blur) {
+        return blur == Config.menuBlur.value || blur == Config.widgetBlur.value;
+    }
+
+    private static PostEffectProcessor getBlur(int blur) {
+        if (!BLURS.containsKey(blur)) {
+            BLURS.put(blur, loadBlur(blur));
+        }
+        return BLURS.get(blur);
+    }
+
+    // Vanilla's blur, with its radius set to blur. Vanilla's own leaves it at 0, which makes the shader
+    // read the menu blur setting (Saturn's animated background blur while a Saturn screen is open).
+    private static PostEffectProcessor loadBlur(int blur) {
+        try (Reader reader = SaturnClient.client.getResourceManager().getResourceOrThrow(BLUR).getReader()) {
+            JsonElement json = JsonParser.parseReader(reader);
+            setRadius(json, blur);
+
+            PostEffectPipeline pipeline = PostEffectPipeline.CODEC.parse(JsonOps.INSTANCE, json).getOrThrow();
+            return PostEffectProcessor.parseEffect(pipeline, SaturnClient.client.getTextureManager(),
+                    DefaultFramebufferSet.MAIN_ONLY, Identifier.of("saturnclient", "glass_blur_" + blur), PROJECTION);
+        } catch (Exception e) {
+            SaturnClient.LOGGER.error("Couldn't load the glass blur", e);
+            return null;
+        }
+    }
+
+    // Sets every "Radius" uniform in the effect
+    private static void setRadius(JsonElement json, int radius) {
+        if (json.isJsonArray()) {
+            json.getAsJsonArray().forEach(element -> setRadius(element, radius));
+        } else if (json.isJsonObject()) {
+            JsonObject object = json.getAsJsonObject();
+            if (object.has("name") && object.get("name").getAsString().equals("Radius")) {
+                object.addProperty("value", (float) radius);
+            }
+            object.entrySet().forEach(entry -> setRadius(entry.getValue(), radius));
+        }
+    }
+}
+//?} else if >=1.21.5 {
+/*import java.util.HashMap;
+import java.util.Map;
+
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.textures.FilterMode;
+
+import org.saturnclient.config.Config;
+import org.saturnclient.saturnclient.SaturnClient;
+
+import net.minecraft.client.gl.Framebuffer;
+import net.minecraft.client.gl.PostEffectProcessor;
+import net.minecraft.client.gl.RenderPipelines;
+import net.minecraft.client.gl.SimpleFramebuffer;
+import net.minecraft.client.render.DefaultFramebufferSet;
+import net.minecraft.client.render.RenderLayer;
+import net.minecraft.client.render.RenderPhase;
+import net.minecraft.client.util.Pool;
+import net.minecraft.util.Identifier;
+
+public final class GlassRenderer {
+    private static final RenderPipeline PIPELINE = RenderPipeline.builder(RenderPipelines.POSITION_TEX_COLOR_SNIPPET)
+            .withLocation(Identifier.of("saturnclient", "pipeline/glass"))
+            .withFragmentShader(Identifier.of("saturnclient", "core/glass_pre_1_21_6"))
+            .withSampler("Sampler1")
+            .build();
+
+    private static final Identifier BLUR = Identifier.ofVanilla("blur");
+    // For the blur's intermediate target, freed once unused for a few frames
+    private static final Pool POOL = new Pool(3);
+
+    private static final Map<Integer, SimpleFramebuffer> BACKDROPS = new HashMap<>();
+    // By mask and blur
+    private static final Map<String, RenderLayer> LAYERS = new HashMap<>();
+    // The game behind the screen before the screen blurs it, which glass is blurred from
+    private static SimpleFramebuffer background;
+
+    private GlassRenderer() {
+    }
+
+    // Saves the main framebuffer for glass. Call each frame before the screen blurs its background.
+    public static void saveBackground() {
+        background = copy(SaturnClient.client.getFramebuffer(), background, "Saturn glass background");
+    }
+
+    // Copies the saved background and blurs the copy by blur. Call once a frame for each blur, before
+    // drawing glass with it.
+    public static void captureBackdrop(int blur) {
+        Framebuffer from = background != null ? background : SaturnClient.client.getFramebuffer();
+        SimpleFramebuffer backdrop = copy(from, BACKDROPS.get(blur), "Saturn glass " + blur);
+        BACKDROPS.put(blur, backdrop);
+
+        PostEffectProcessor processor = SaturnClient.client.getShaderLoader().loadPostEffect(BLUR,
+                DefaultFramebufferSet.MAIN_ONLY);
+        if (processor != null) {
+            processor.render(backdrop, POOL, pass -> pass.setUniform("Radius", (float) blur));
+        }
+        POOL.decrementLifespan();
+        release(blur);
+    }
+
+    // Draws glass through mask with the copy blurred by blur
+    public static RenderLayer getLayer(Identifier mask, int blur) {
+        return LAYERS.computeIfAbsent(mask + " " + blur, key -> RenderLayer.of("saturn_glass", 786432, PIPELINE,
+                RenderLayer.MultiPhaseParameters.builder()
+                        .texture(new RenderPhase.TextureBase(() -> {
+                            RenderSystem.setShaderTexture(0,
+                                    SaturnClient.client.getTextureManager().getTexture(mask).getGlTexture());
+                            RenderSystem.setShaderTexture(1, BACKDROPS.get(blur).getColorAttachment());
+                        }, () -> {
+                        }))
+                        .build(false)));
+    }
+
+    // Frees the copies of strengths that are no longer set, besides kept
+    private static void release(int kept) {
+        BACKDROPS.entrySet().removeIf(entry -> {
+            boolean unused = entry.getKey() != kept && entry.getKey() != Config.menuBlur.value
+                    && entry.getKey() != Config.widgetBlur.value;
+            if (unused) {
+                entry.getValue().delete();
+            }
+            return unused;
+        });
+    }
+
+    // Copies from into to, made or resized to match
+    private static SimpleFramebuffer copy(Framebuffer from, SimpleFramebuffer to, String name) {
+        int width = from.textureWidth;
+        int height = from.textureHeight;
+
+        if (to == null) {
+            to = new SimpleFramebuffer(name, width, height, false);
+        } else if (to.textureWidth != width || to.textureHeight != height) {
+            to.resize(width, height);
+        }
+        to.getColorAttachment().setTextureFilter(FilterMode.LINEAR, false);
+
+        RenderSystem.getDevice().createCommandEncoder().copyTextureToTexture(
+                from.getColorAttachment(), to.getColorAttachment(), 0, 0, 0, 0, 0, width, height);
+        return to;
+    }
+}
+*///?} else {
+/*import java.util.HashMap;
+import java.util.Map;
+
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL30;
+
+import com.mojang.blaze3d.platform.GlStateManager;
+import com.mojang.blaze3d.systems.RenderSystem;
+
+import org.saturnclient.config.Config;
+import org.saturnclient.saturnclient.SaturnClient;
+
+import net.minecraft.client.gl.Defines;
+import net.minecraft.client.gl.Framebuffer;
+import net.minecraft.client.gl.PostEffectProcessor;
+import net.minecraft.client.gl.ShaderProgramKey;
+import net.minecraft.client.gl.SimpleFramebuffer;
+import net.minecraft.client.render.DefaultFramebufferSet;
+import net.minecraft.client.render.RenderLayer;
+import net.minecraft.client.render.RenderPhase;
+import net.minecraft.client.render.VertexFormat;
+import net.minecraft.client.render.VertexFormats;
+import net.minecraft.client.util.Pool;
+import net.minecraft.util.Identifier;
+
+public final class GlassRenderer {
+    private static final ShaderProgramKey PROGRAM = new ShaderProgramKey(Identifier.of("saturnclient", "core/glass"),
+            VertexFormats.POSITION_TEXTURE_COLOR, Defines.EMPTY);
+
+    private static final Identifier BLUR = Identifier.ofVanilla("blur");
+    // For the blur's intermediate target, freed once unused for a few frames
+    private static final Pool POOL = new Pool(3);
+
+    private static final Map<Integer, SimpleFramebuffer> BACKDROPS = new HashMap<>();
+    // By mask and blur
+    private static final Map<String, RenderLayer> LAYERS = new HashMap<>();
+    // The game behind the screen before the screen blurs it, which glass is blurred from
+    private static SimpleFramebuffer background;
+
+    private GlassRenderer() {
+    }
+
+    // Saves the main framebuffer for glass. Call each frame before the screen blurs its background.
+    public static void saveBackground() {
+        background = copy(SaturnClient.client.getFramebuffer(), background);
+    }
+
+    // Copies the saved background and blurs the copy by blur. Call once a frame for each blur, before
+    // drawing glass with it.
+    public static void captureBackdrop(int blur) {
+        Framebuffer from = background != null ? background : SaturnClient.client.getFramebuffer();
+        SimpleFramebuffer backdrop = copy(from, BACKDROPS.get(blur));
+        BACKDROPS.put(blur, backdrop);
+
+        PostEffectProcessor processor = SaturnClient.client.getShaderLoader().loadPostEffect(BLUR,
+                DefaultFramebufferSet.MAIN_ONLY);
+        if (processor != null) {
+            processor.setUniforms("Radius", blur);
+            processor.render(backdrop, POOL);
+        }
+        POOL.decrementLifespan();
+        release(blur);
+        SaturnClient.client.getFramebuffer().beginWrite(false);
+    }
+
+    // Draws glass through mask with the copy blurred by blur
+    public static RenderLayer getLayer(Identifier mask, int blur) {
+        return LAYERS.computeIfAbsent(mask + " " + blur, key -> RenderLayer.of("saturn_glass",
+                VertexFormats.POSITION_TEXTURE_COLOR, VertexFormat.DrawMode.QUADS, 786432,
+                RenderLayer.MultiPhaseParameters.builder()
+                        .texture(new RenderPhase.TextureBase(() -> {
+                            RenderSystem.setShaderTexture(0, mask);
+                            RenderSystem.setShaderTexture(1, BACKDROPS.get(blur).getColorAttachment());
+                        }, () -> {
+                        }))
+                        .program(new RenderPhase.ShaderProgram(PROGRAM))
+                        .transparency(RenderPhase.TRANSLUCENT_TRANSPARENCY)
+                        .build(false)));
+    }
+
+    // Frees the copies of strengths that are no longer set, besides kept
+    private static void release(int kept) {
+        BACKDROPS.entrySet().removeIf(entry -> {
+            boolean unused = entry.getKey() != kept && entry.getKey() != Config.menuBlur.value
+                    && entry.getKey() != Config.widgetBlur.value;
+            if (unused) {
+                entry.getValue().delete();
+            }
+            return unused;
+        });
+    }
+
+    // Copies from into to, made or resized to match
+    private static SimpleFramebuffer copy(Framebuffer from, SimpleFramebuffer to) {
+        int width = from.textureWidth;
+        int height = from.textureHeight;
+
+        if (to == null) {
+            to = new SimpleFramebuffer(width, height, false);
+        } else if (to.textureWidth != width || to.textureHeight != height) {
+            to.resize(width, height);
+        }
+        to.setTexFilter(GL11.GL_LINEAR);
+
+        GlStateManager._glBindFramebuffer(GL30.GL_READ_FRAMEBUFFER, from.fbo);
+        GlStateManager._glBindFramebuffer(GL30.GL_DRAW_FRAMEBUFFER, to.fbo);
+        GlStateManager._glBlitFrameBuffer(0, 0, width, height, 0, 0, width, height, GL11.GL_COLOR_BUFFER_BIT,
+                GL11.GL_NEAREST);
+        SaturnClient.client.getFramebuffer().beginWrite(false);
+        return to;
+    }
+}
+*///?}

src/main/java/org/saturnclient/impl/ui/RenderScopeImpl.java

@@ -0,0 +1,839 @@
+package org.saturnclient.impl.ui;
+
+// 1.21.6 rewrote GUI rendering: render states and a 2D matrix stack (Matrix3x2fStack) instead of
+// drawing into vertex consumers with a MatrixStack. This file has one implementation for each side.
+//? if >=1.21.6 {
+import java.util.ArrayDeque;
+import java.util.Deque;
+import java.util.HashSet;
+import java.util.Objects;
+import java.util.Set;
+
+import org.jetbrains.annotations.Nullable;
+import org.joml.Matrix3x2f;
+import org.joml.Matrix3x2fStack;
+import org.joml.Quaternionf;
+import org.joml.Vector3f;
+
+import com.mojang.blaze3d.textures.GpuTextureView;
+
+import org.saturnclient.common.ref.asset.IdentifierRef;
+import org.saturnclient.common.ref.asset.SpriteRef;
+import org.saturnclient.common.ref.game.ItemStackRef;
+import org.saturnclient.common.ref.render.MatrixStackRef;
+import org.saturnclient.impl.ref.Matrix3x2fStackRef;
+import org.saturnclient.saturnclient.SaturnClient;
+import org.saturnclient.saturnclient.mixin.DrawContextAccessor;
+import org.saturnclient.ui.RenderScope;
+import org.saturnclient.ui.resources.Fonts;
+import org.saturnclient.ui.resources.SvgTexture;
+
+import net.minecraft.client.gl.RenderPipelines;
+import net.minecraft.client.gui.DrawContext;
+import net.minecraft.client.gui.ScreenRect;
+import net.minecraft.client.gui.render.state.ColoredQuadGuiElementRenderState;
+import net.minecraft.client.gui.render.state.GuiRenderState;
+import net.minecraft.client.gui.render.state.ItemGuiElementRenderState;
+import net.minecraft.client.gui.render.state.TextGuiElementRenderState;
+import net.minecraft.client.gui.render.state.TexturedQuadGuiElementRenderState;
+import net.minecraft.client.gui.render.state.special.EntityGuiElementRenderState;
+import net.minecraft.client.render.entity.state.EntityRenderState;
+//? if >=1.21.7 {
+import net.minecraft.client.render.item.KeyedItemRenderState;
+//?} else
+//import net.minecraft.client.render.item.ItemRenderState;
+import net.minecraft.client.texture.AbstractTexture;
+import net.minecraft.client.texture.Sprite;
+import net.minecraft.client.texture.TextureSetup;
+import net.minecraft.entity.LivingEntity;
+import net.minecraft.item.ItemDisplayContext;
+import net.minecraft.item.ItemStack;
+import net.minecraft.text.Text;
+import net.minecraft.util.Identifier;
+import net.minecraft.util.crash.CrashException;
+import net.minecraft.util.crash.CrashReport;
+import net.minecraft.util.crash.CrashReportSection;
+import net.minecraft.world.World;
+
+public class RenderScopeImpl implements RenderScope {
+
+    public final Matrix3x2fStackRef matrices;
+    public final GuiRenderState state;
+
+    private ScissorStack scissorStack;
+    private int opacity = 0xFF << 24;
+    // The glass blurs made for this scope's frame
+    private final Set<Integer> capturedBlurs = new HashSet<>();
+
+    public RenderScopeImpl(DrawContext context) {
+        this(context.getMatrices(), ((DrawContextAccessor) (Object) context).getState());
+    }
+
+    public RenderScopeImpl(Matrix3x2fStack matrices, GuiRenderState state) {
+        this.matrices = new Matrix3x2fStackRef(matrices);
+        this.state = state;
+        this.scissorStack = new ScissorStack();
+    }
+
+    @Override
+    public MatrixStackRef getMatrixStack() {
+        return matrices;
+    }
+
+    @Override
+    public void setOpacity(float alpha) {
+        this.opacity = ((int) (alpha * 255)) << 24;
+    }
+
+    @Override
+    public int getColor(int color) {
+        int originalAlpha = (color >>> 24) & 0xFF;
+        int newAlpha = (opacity >>> 24) & 0xFF;
+        int mixedAlpha = (originalAlpha * newAlpha) / 255;
+        return (mixedAlpha << 24) | (color & 0x00FFFFFF);
+    }
+
+    @Override
+    public void fill(int x1, int y1, int x2, int y2, int color) {
+        this.state.addSimpleElement(
+                new ColoredQuadGuiElementRenderState(
+                        RenderPipelines.GUI,
+                        TextureSetup.empty(),
+                        new Matrix3x2f(this.matrices.stack),
+                        x1, y1, x2, y2, color, color,
+                        this.scissorStack.peekLast()));
+    }
+
+    @Override
+    public void drawRectangle(int x, int y, int width, int height, int color) {
+        if (color == 0)
+            return;
+        color = getColor(color);
+
+        int x1 = x;
+        int x2 = x + width;
+        int y1 = y;
+        int y2 = y + height;
+
+        if (x2 < x1) {
+            int tmp = x1;
+            x1 = x2;
+            x2 = tmp;
+        }
+        if (y2 < y1) {
+            int tmp = y1;
+            y1 = y2;
+            y2 = tmp;
+        }
+
+        this.fill(x1, y1, x2, y2, color);
+    }
+
+    @Override
+    public void drawText(String text, int x, int y, int font, int color) {
+        drawText(1.0f, text, x, y, font, color);
+    }
+
+    @Override
+    public void drawText(float scale, String text, int x, int y, int font, int color) {
+        if (color == 0)
+            return;
+        if (font == 0)
+            scale *= 2;
+
+        int lineIndex = 0;
+        for (String line : text.split("\n")) {
+            int finalColor = getColor(color);
+
+            matrices.push();
+            matrices.translate(x, y + (lineIndex * Fonts.getHeight()));
+            matrices.scale(scale, scale);
+
+            this.state.addText(
+                    new TextGuiElementRenderState(
+                            SaturnClient.client.textRenderer,
+                            ((Text) Fonts.setFont(line, font)).asOrderedText(),
+                            new Matrix3x2f(this.matrices.stack),
+                            0, font == 0 ? 1 : 8,
+                            //? if >=1.21.11 {
+                            finalColor, 0, false, false, this.scissorStack.peekLast()));
+                            //?} else
+                            //finalColor, 0, false, this.scissorStack.peekLast()));
+
+            matrices.pop();
+
+            lineIndex++;
+        }
+    }
+
+    @Override
+    public int getScaledWindowWidth() {
+        return SaturnClient.client.getWindow().getScaledWidth();
+    }
+
+    @Override
+    public int getScaledWindowHeight() {
+        return SaturnClient.client.getWindow().getScaledHeight();
+    }
+
+    // Texture rendering
+    @Override
+    public void drawTexture(IdentifierRef sprite, int x, int y, float u, float v, int width, int height) {
+        drawTexture(sprite, x, y, u, v, width, height, -1);
+    }
+
+    @Override
+    public void drawTexture(IdentifierRef sprite, int x, int y, float u, float v, int width, int height, int color) {
+        drawTexture(sprite, x, y, u, v, width, height, width, height, width, height, color);
+    }
+
+    @Override
+    public void drawTexture(IdentifierRef sprite, int x, int y, float u, float v, int width, int height,
+            int regionWidth, int regionHeight, int textureWidth, int textureHeight) {
+        drawTexture(sprite, x, y, u, v, width, height, regionWidth, regionHeight, textureWidth, textureHeight, -1);
+    }
+
+    @Override
+    public void drawTexture(IdentifierRef sprite, int x, int y, float u, float v, int width, int height,
+            int regionWidth, int regionHeight, int textureWidth, int textureHeight, int color) {
+        drawTexturedQuad((Identifier) (Object) sprite, x, x + width, y, y + height,
+                (u + 0f) / textureWidth,
+                (u + regionWidth) / textureWidth,
+                (v + 0f) / textureHeight,
+                (v + regionHeight) / textureHeight,
+                color);
+    }
+
+    private void drawTexturedQuad(Identifier sprite, int x1, int x2, int y1, int y2,
+            float u1, float u2, float v1, float v2, int color) {
+        if (color == 0)
+            return;
+        color = getColor(color);
+
+        if (sprite.getPath().endsWith(".svg")) {
+            sprite = (Identifier) (Object) SvgTexture.getSvg(
+                    (IdentifierRef) (Object) sprite,
+                    (x2 - x1) * 2, (y2 - y1) * 2);
+        }
+
+        GpuTextureView gpuTextureView = SaturnClient.client.getTextureManager()
+                .getTexture(sprite).getGlTextureView();
+
+        //? if >=1.21.11
+        AbstractTexture abstractTexture = SaturnClient.client.getTextureManager().getTexture(sprite);
+
+        this.state.addSimpleElement(new TexturedQuadGuiElementRenderState(
+                RenderPipelines.GUI_TEXTURED,
+                //? if >=1.21.11 {
+                TextureSetup.of(gpuTextureView, abstractTexture.getSampler()),
+                //?} else
+                //TextureSetup.withoutGlTexture(gpuTextureView),
+                new Matrix3x2f(this.matrices.stack),
+                x1, y1, x2, y2, u1, u2, v1, v2, color,
+                this.scissorStack.peekLast()));
+    }
+
+    @Override
+    public void drawGlass(IdentifierRef mask, int x, int y, int width, int height, int blur) {
+        int color = getColor(0xFFFFFFFF);
+        if (mask == null || color >>> 24 == 0)
+            return;
+
+        if (capturedBlurs.add(blur)) {
+            GlassRenderer.captureBackdrop(blur);
+        }
+
+        AbstractTexture maskTexture = SaturnClient.client.getTextureManager().getTexture((Identifier) (Object) mask);
+        this.state.addSimpleElement(new TexturedQuadGuiElementRenderState(
+                GlassRenderer.PIPELINE,
+                GlassRenderer.textures(maskTexture, blur),
+                new Matrix3x2f(this.matrices.stack),
+                x, y, x + width, y + height, 0, 1, 0, 1, color,
+                this.scissorStack.peekLast()));
+    }
+
+    // Scissor management
+    @Override
+    public void enableScissor(int x1, int y1, int x2, int y2) {
+        ScreenRect rect = new ScreenRect(x1, y1, x2 - x1, y2 - y1).transform(this.matrices.stack);
+        scissorStack.push(rect);
+    }
+
+    @Override
+    public void disableScissor() {
+        scissorStack.pop();
+    }
+
+    @Override
+    public boolean scissorContains(int x, int y) {
+        return scissorStack.contains(x, y);
+    }
+
+    public static class ScissorStack {
+        private final Deque<ScreenRect> stack = new ArrayDeque<>();
+
+        public ScreenRect push(ScreenRect rect) {
+            ScreenRect last = stack.peekLast();
+            if (last != null) {
+                ScreenRect intersection = Objects.requireNonNullElse(rect.intersection(last), ScreenRect.empty());
+                stack.addLast(intersection);
+                return intersection;
+            } else {
+                stack.addLast(rect);
+                return rect;
+            }
+        }
+
+        @Nullable
+        public ScreenRect pop() {
+            if (stack.isEmpty())
+                throw new IllegalStateException("Scissor stack underflow");
+            stack.removeLast();
+            return stack.peekLast();
+        }
+
+        @Nullable
+        public ScreenRect peekLast() {
+            return stack.peekLast();
+        }
+
+        public boolean contains(int x, int y) {
+            return stack.isEmpty() || stack.peekLast().contains(x, y);
+        }
+    }
+
+    // Item rendering
+    @Override
+    public void drawItem(ItemStackRef stack, int x, int y) {
+        drawItem(null, SaturnClient.client.world, stack, x, y, 0);
+    }
+
+    private void drawItem(@Nullable LivingEntity entity, @Nullable World world, ItemStackRef stack, int x, int y,
+            int seed) {
+        drawItem(entity, world, (ItemStack) (Object) stack, x, y, seed, 0);
+    }
+
+    private void drawItem(@Nullable LivingEntity entity, @Nullable World world, ItemStack stack, int x, int y, int seed,
+            int z) {
+        if (!stack.isEmpty()) {
+            //? if >=1.21.7 {
+            KeyedItemRenderState keyedItemRenderState = new KeyedItemRenderState();
+            //?} else
+            //ItemRenderState keyedItemRenderState = new ItemRenderState();
+            SaturnClient.client.getItemModelManager().clearAndUpdate(keyedItemRenderState, stack,
+                    ItemDisplayContext.GUI, world,
+                    entity, seed);
+
+            try {
+                this.state.addItem(new ItemGuiElementRenderState(stack.getItem().getName().toString(),
+                        new Matrix3x2f(this.matrices.stack), keyedItemRenderState, x, y,
+                        this.scissorStack.peekLast()));
+            } catch (Throwable throwable) {
+                CrashReport crashReport = CrashReport.create(throwable, "Rendering item");
+                CrashReportSection crashReportSection = crashReport.addElement("Item being rendered");
+                crashReportSection.add("Item Type", () -> String.valueOf(stack.getItem()));
+                crashReportSection.add("Item Components", () -> String.valueOf(stack.getComponents()));
+                crashReportSection.add("Item Foil", () -> String.valueOf(stack.hasGlint()));
+                throw new CrashException(crashReport);
+            }
+        }
+    }
+
+    @Override
+    public void drawSpriteStretched(SpriteRef sprite, int x, int y, int width, int height) {
+        drawSpriteStretched(sprite, x, y, width, height, -1);
+    }
+
+    @Override
+    public void drawSpriteStretched(SpriteRef sprite, int x, int y, int width, int height, int color) {
+        Sprite mcSprite = (Sprite) sprite;
+        if (color == 0 || width == 0 || height == 0)
+            return;
+
+        drawTexturedQuad(mcSprite.getAtlasId(), x, x + width, y, y + height,
+                mcSprite.getMinU(), mcSprite.getMaxU(), mcSprite.getMinV(), mcSprite.getMaxV(), color);
+    }
+
+    @Override
+    public void draw() {
+        // No-op for now
+    }
+
+    public void drawBorder(int x, int y, int width, int height, int color) {
+        fill(x, y, x + width, y + 1, color);
+        fill(x, y + height - 1, x + width, y + height, color);
+        fill(x, y + 1, x + 1, y + height - 1, color);
+        fill(x + width - 1, y + 1, x + width, y + height - 1, color);
+    }
+
+    public void addEntity(EntityRenderState entityState, float scale, Vector3f translation, Quaternionf rotation,
+            @Nullable Quaternionf overrideCameraAngle, int x1, int y1, int x2, int y2) {
+
+        Matrix3x2f mat = this.matrices.stack;
+        float offsetX = mat.m20;
+        float offsetY = mat.m21;
+        float scaleX = mat.m00; // current matrix X scale
+        float scaleY = mat.m11; // current matrix Y scale
+
+        int adjustedX1 = (int) (x1 * scaleX + offsetX);
+        int adjustedY1 = (int) (y1 * scaleY + offsetY);
+        int adjustedX2 = (int) (x2 * scaleX + offsetX);
+        int adjustedY2 = (int) (y2 * scaleY + offsetY);
+
+        float adjustedScale = scale * scaleX; // apply matrix scale to entity scale too
+
+        this.state.addSpecialElement(new EntityGuiElementRenderState(entityState, translation, rotation,
+                overrideCameraAngle, adjustedX1, adjustedY1, adjustedX2, adjustedY2, adjustedScale,
+                this.scissorStack.peekLast()));
+    }
+}
+//?} else {
+/*import java.util.ArrayDeque;
+import java.util.Deque;
+import java.util.HashSet;
+import java.util.Objects;
+import java.util.Set;
+import java.util.function.Consumer;
+
+import org.jetbrains.annotations.Nullable;
+import org.joml.Matrix4f;
+
+import com.mojang.blaze3d.systems.RenderSystem;
+
+import org.saturnclient.common.ref.asset.IdentifierRef;
+import org.saturnclient.common.ref.asset.SpriteRef;
+import org.saturnclient.common.ref.game.ItemStackRef;
+import org.saturnclient.common.ref.render.MatrixStackRef;
+import org.saturnclient.saturnclient.SaturnClient;
+import org.saturnclient.saturnclient.mixin.DrawContextAccessor;
+import org.saturnclient.ui.RenderScope;
+import org.saturnclient.ui.resources.Fonts;
+import org.saturnclient.ui.resources.SvgTexture;
+
+import net.minecraft.client.font.TextRenderer;
+import net.minecraft.client.font.TextRenderer.TextLayerType;
+import net.minecraft.client.gui.DrawContext;
+import net.minecraft.client.gui.ScreenRect;
+import net.minecraft.client.render.DiffuseLighting;
+import net.minecraft.client.render.OverlayTexture;
+import net.minecraft.client.render.RenderLayer;
+import net.minecraft.client.render.VertexConsumer;
+import net.minecraft.client.render.VertexConsumerProvider;
+import net.minecraft.client.render.item.ItemRenderState;
+import net.minecraft.client.texture.Sprite;
+import net.minecraft.client.util.Window;
+import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.entity.LivingEntity;
+//? if >=1.21.5
+import net.minecraft.item.ItemDisplayContext;
+//? if <1.21.5
+//import net.minecraft.item.ModelTransformationMode;
+import net.minecraft.item.ItemStack;
+
+import net.minecraft.text.Text;
+import net.minecraft.util.Identifier;
+import net.minecraft.util.crash.CrashException;
+import net.minecraft.util.crash.CrashReport;
+import net.minecraft.util.crash.CrashReportSection;
+import net.minecraft.world.World;
+
+public class RenderScopeImpl implements RenderScope {
+    // ----------------------------
+    // Fields
+    // ----------------------------
+    public MatrixStack matrices;
+    public VertexConsumerProvider.Immediate vertexConsumers;
+    private ScissorStack scissorStack = new ScissorStack();
+    private int opacity = 255 << 24;
+    // The glass blurs made for this scope's frame
+    private final Set<Integer> capturedBlurs = new HashSet<>();
+    private final ItemRenderState itemRenderState;
+
+    // ----------------------------
+    // Constructors
+    // ----------------------------
+    public RenderScopeImpl(DrawContext context) {
+        this(context.getMatrices(), ((DrawContextAccessor) context).getVertexConsumers());
+    }
+
+    public RenderScopeImpl(MatrixStack matrices, VertexConsumerProvider.Immediate vertexConsumers) {
+        this.matrices = matrices;
+        this.vertexConsumers = vertexConsumers;
+        this.scissorStack = new ScissorStack();
+        this.itemRenderState = new ItemRenderState();
+    }
+
+    // ----------------------------
+    // Matrix & Transform
+    // ----------------------------
+    @Override
+    public MatrixStackRef getMatrixStack() {
+        return (MatrixStackRef) matrices;
+    }
+
+    // ----------------------------
+    // Color & Opacity
+    // ----------------------------
+    @Override
+    public void setOpacity(float alpha) {
+        this.opacity = (int) (alpha * 255) << 24;
+    }
+
+    @Override
+    public int getColor(int color) {
+        int originalAlpha = (color >>> 24) & 0xFF;
+        int newAlpha = (opacity >>> 24) & 0xFF;
+        int mixedAlpha = (originalAlpha * newAlpha) / 255;
+        return (mixedAlpha << 24) | (color & 0x00FFFFFF);
+    }
+
+    // ----------------------------
+    // Draw / Window Info
+    // ----------------------------
+    @Override
+    public void draw() {
+        this.vertexConsumers.draw();
+    }
+
+    @Override
+    public int getScaledWindowWidth() {
+        return SaturnClient.client.getWindow().getScaledWidth();
+    }
+
+    @Override
+    public int getScaledWindowHeight() {
+        return SaturnClient.client.getWindow().getScaledHeight();
+    }
+
+    public void draw(Consumer<VertexConsumerProvider> drawer) {
+        drawer.accept(this.vertexConsumers);
+        this.vertexConsumers.draw();
+    }
+
+    // ----------------------------
+    // Shapes
+    // ----------------------------
+    @Override
+    public void drawRectangle(int x, int y, int width, int height, int color) {
+        if (color == 0)
+            return;
+        color = getColor(color);
+
+        Matrix4f matrix4f = this.matrices.peek().getPositionMatrix();
+
+        int x1 = x;
+        int x2 = x + width;
+        int y1 = y;
+        int y2 = y + height;
+
+        if (x1 < x2) {
+            int tmp = x1;
+            x1 = x2;
+            x2 = tmp;
+        }
+        if (y1 < y2) {
+            int tmp = y1;
+            y1 = y2;
+            y2 = tmp;
+        }
+
+        VertexConsumer vertexConsumer = this.vertexConsumers.getBuffer(RenderLayer.getGui());
+        vertexConsumer.vertex(matrix4f, x1, y1, 0).color(color);
+        vertexConsumer.vertex(matrix4f, x1, y2, 0).color(color);
+        vertexConsumer.vertex(matrix4f, x2, y2, 0).color(color);
+        vertexConsumer.vertex(matrix4f, x2, y1, 0).color(color);
+    }
+
+    @Override
+    public void fill(int x1, int y1, int x2, int y2, int color) {
+        fill(x1, y1, x2, y2, 0, color);
+    }
+
+    public void fill(int x1, int y1, int x2, int y2, int z, int color) {
+        fill(RenderLayer.getGui(), x1, y1, x2, y2, z, color);
+    }
+
+    public void fill(RenderLayer layer, int x1, int y1, int x2, int y2, int color) {
+        fill(layer, x1, y1, x2, y2, 0, color);
+    }
+
+    public void fill(RenderLayer layer, int x1, int y1, int x2, int y2, int z, int color) {
+        Matrix4f matrix4f = this.matrices.peek().getPositionMatrix();
+        if (x1 < x2) {
+            int tmp = x1;
+            x1 = x2;
+            x2 = tmp;
+        }
+        if (y1 < y2) {
+            int tmp = y1;
+            y1 = y2;
+            y2 = tmp;
+        }
+
+        VertexConsumer vertexConsumer = this.vertexConsumers.getBuffer(layer);
+        vertexConsumer.vertex(matrix4f, x1, y1, z).color(color);
+        vertexConsumer.vertex(matrix4f, x1, y2, z).color(color);
+        vertexConsumer.vertex(matrix4f, x2, y2, z).color(color);
+        vertexConsumer.vertex(matrix4f, x2, y1, z).color(color);
+    }
+
+    @Override
+    public void drawBorder(int x, int y, int width, int height, int color) {
+        fill(x, y, x + width, y + 1, color);
+        fill(x, y + height - 1, x + width, y + height, color);
+        fill(x, y + 1, x + 1, y + height - 1, color);
+        fill(x + width - 1, y + 1, x + width, y + height - 1, color);
+    }
+
+    // ----------------------------
+    // Text
+    // ----------------------------
+    @Override
+    public void drawText(String text, int x, int y, int font, int color) {
+        drawText(1.0f, text, x, y, font, color);
+    }
+
+    @Override
+    public void drawText(float scale, String text, int x, int y, int font, int color) {
+        if (color == 0)
+            return;
+        if (font == 0)
+            scale *= 2;
+
+        int i = 0;
+        for (String line : text.split("\n")) {
+            color = getColor(color);
+            matrices.push();
+            matrices.translate(x, y + i * Fonts.getHeight(), 0);
+            matrices.scale(scale, scale, 1.0f);
+            TextRenderer textRenderer = SaturnClient.client.textRenderer;
+            textRenderer.draw((Text) Fonts.setFont(line, font), 0, font == 0 ? 1 : 7, color, false,
+                    matrices.peek().getPositionMatrix(), vertexConsumers, TextLayerType.NORMAL, 0, 15728880);
+            matrices.pop();
+            i++;
+        }
+    }
+
+    // ----------------------------
+    // Textures & Sprites
+    // ----------------------------
+    @Override
+    public void drawTexture(IdentifierRef sprite, int x, int y, float u, float v, int width, int height) {
+        drawTexture(sprite, x, y, u, v, width, height, width, height, width, height);
+    }
+
+    @Override
+    public void drawTexture(IdentifierRef sprite, int x, int y, float u, float v, int width, int height, int color) {
+        drawTexture(sprite, x, y, u, v, width, height, width, height, width, height, color);
+    }
+
+    @Override
+    public void drawTexture(IdentifierRef sprite, int x, int y, float u, float v, int width, int height,
+            int regionWidth, int regionHeight, int textureWidth, int textureHeight) {
+        drawTexture(sprite, x, y, u, v, width, height, regionWidth, regionHeight, textureWidth, textureHeight, -1);
+    }
+
+    @Override
+    public void drawTexture(IdentifierRef sprite, int x, int y, float u, float v, int width, int height,
+            int regionWidth, int regionHeight, int textureWidth, int textureHeight, int color) {
+        drawTexturedQuad((Identifier) (Object) sprite, x, x + width, y, y + height,
+                (u + 0.0f) / textureWidth, (u + regionWidth) / textureWidth,
+                (v + 0.0f) / textureHeight, (v + regionHeight) / textureHeight, color);
+    }
+
+    @Override
+    public void drawSpriteStretched(SpriteRef sprite, int x, int y, int width, int height) {
+        drawSpriteStretched(sprite, x, y, width, height, -1);
+    }
+
+    @Override
+    public void drawSpriteStretched(SpriteRef saturnSprite, int x, int y, int width, int height, int color) {
+        Sprite sprite = (Sprite) saturnSprite;
+        if (color == 0)
+            return;
+        if (width != 0 && height != 0) {
+            drawTexturedQuad(sprite.getAtlasId(), x, x + width, y, y + height,
+                    sprite.getMinU(), sprite.getMaxU(), sprite.getMinV(), sprite.getMaxV(), color);
+        }
+    }
+
+    private void drawTexturedQuad(Identifier sprite, int x1, int x2, int y1, int y2,
+            float u1, float u2, float v1, float v2, int color) {
+        if (sprite.toString().endsWith(".svg")) {
+            sprite = (Identifier) (Object) SvgTexture.getSvg((IdentifierRef) (Object) sprite, (x2 - x1) * 2,
+                    (y2 - y1) * 2);
+        }
+        if (color == 0)
+            return;
+
+        x1 *= 4;
+        x2 *= 4;
+        y1 *= 4;
+        y2 *= 4;
+        color = getColor(color);
+
+        matrices.push();
+        matrices.scale(0.25f, 0.25f, 1.0f);
+        //? if <1.21.5
+        //RenderSystem.setShaderTexture(0, sprite);
+        RenderLayer renderLayer = RenderLayer.getGuiTextured(sprite);
+        Matrix4f matrix4f = matrices.peek().getPositionMatrix();
+        VertexConsumer vertexConsumer = vertexConsumers.getBuffer(renderLayer);
+        vertexConsumer.vertex(matrix4f, x1, y1, 0).texture(u1, v1).color(color);
+        vertexConsumer.vertex(matrix4f, x1, y2, 0).texture(u1, v2).color(color);
+        vertexConsumer.vertex(matrix4f, x2, y2, 0).texture(u2, v2).color(color);
+        vertexConsumer.vertex(matrix4f, x2, y1, 0).texture(u2, v1).color(color);
+        matrices.pop();
+    }
+
+    @Override
+    public void drawGlass(IdentifierRef mask, int x, int y, int width, int height, int blur) {
+        int color = getColor(0xFFFFFFFF);
+        if (mask == null || color >>> 24 == 0)
+            return;
+
+        if (capturedBlurs.add(blur)) {
+            GlassRenderer.captureBackdrop(blur);
+        }
+
+        // In quarter units, as drawTexturedQuad draws
+        int x1 = x * 4;
+        int x2 = (x + width) * 4;
+        int y1 = y * 4;
+        int y2 = (y + height) * 4;
+
+        matrices.push();
+        matrices.scale(0.25f, 0.25f, 1.0f);
+        Matrix4f matrix4f = matrices.peek().getPositionMatrix();
+        VertexConsumer vertexConsumer = vertexConsumers.getBuffer(GlassRenderer.getLayer((Identifier) (Object) mask, blur));
+        vertexConsumer.vertex(matrix4f, x1, y1, 0).texture(0, 0).color(color);
+        vertexConsumer.vertex(matrix4f, x1, y2, 0).texture(0, 1).color(color);
+        vertexConsumer.vertex(matrix4f, x2, y2, 0).texture(1, 1).color(color);
+        vertexConsumer.vertex(matrix4f, x2, y1, 0).texture(1, 0).color(color);
+        matrices.pop();
+    }
+
+    // ----------------------------
+    // Items
+    // ----------------------------
+    @Override
+    public void drawItem(ItemStackRef item, int x, int y) {
+        drawItem(SaturnClient.client.player, SaturnClient.client.world, item, x, y, 0);
+    }
+
+    private void drawItem(@Nullable LivingEntity entity, @Nullable World world, ItemStackRef stack, int x, int y,
+            int seed) {
+        drawItem(entity, world, (ItemStack) (Object) stack, x, y, seed, 0);
+    }
+
+    private void drawItem(@Nullable LivingEntity entity, @Nullable World world, ItemStack stack, int x, int y, int seed,
+            int z) {
+        if (stack.isEmpty())
+            return;
+
+        //? if >=1.21.5
+        SaturnClient.client.getItemModelManager().update(itemRenderState, stack, ItemDisplayContext.GUI, world, entity, seed);
+        //? if >=1.21.5
+        SaturnClient.client.getItemModelManager().clearAndUpdate(this.itemRenderState, stack, ItemDisplayContext.GUI, world, entity, seed);
+        //? if <1.21.5
+        //SaturnClient.client.getItemModelManager().update(itemRenderState, stack, ModelTransformationMode.GUI, false, world, entity, seed);
+
+        this.matrices.push();
+        //? if >=1.21.5
+        this.matrices.translate((float) (x + 8), (float) (y + 8), (float) (150 + z));
+        //? if <1.21.5
+        //this.matrices.translate(x + 8, y + 8, 150 + (itemRenderState.hasDepth() ? z : 0));
+
+        try {
+            this.matrices.scale(16.0F, -16.0F, 16.0F);
+            boolean bl = !this.itemRenderState.isSideLit();
+            if (bl) {
+                this.draw();
+                DiffuseLighting.disableGuiDepthLighting();
+            }
+
+            this.itemRenderState.render(this.matrices, this.vertexConsumers, 15728880, OverlayTexture.DEFAULT_UV);
+            this.draw();
+            if (bl) {
+                DiffuseLighting.enableGuiDepthLighting();
+            }
+        } catch (Throwable throwable) {
+            CrashReport crashReport = CrashReport.create(throwable, "Rendering item");
+            CrashReportSection crashReportSection = crashReport.addElement("Item being rendered");
+            crashReportSection.add("Item Type", () -> String.valueOf(stack.getItem()));
+            crashReportSection.add("Item Components", () -> String.valueOf(stack.getComponents()));
+            crashReportSection.add("Item Foil", () -> String.valueOf(stack.hasGlint()));
+            throw new CrashException(crashReport);
+        }
+
+        this.matrices.pop();
+    }
+
+    // ----------------------------
+    // Scissor / Clipping
+    // ----------------------------
+    @Override
+    public void enableScissor(int x1, int y1, int x2, int y2) {
+        ScreenRect screenRect = new ScreenRect(x1, y1, x2 - x1, y2 - y1)
+                .transform(matrices.peek().getPositionMatrix());
+        setScissor(scissorStack.push(screenRect));
+    }
+
+    @Override
+    public void disableScissor() {
+        setScissor(scissorStack.pop());
+    }
+
+    @Override
+    public boolean scissorContains(int x, int y) {
+        return scissorStack.containsPoint(x, y);
+    }
+
+    private void setScissor(@Nullable ScreenRect rect) {
+        draw();
+        if (rect != null) {
+            Window window = SaturnClient.client.getWindow();
+            int framebufferHeight = window.getFramebufferHeight();
+            double scaleFactor = window.getScaleFactor();
+            RenderSystem.enableScissor(
+                    (int) (rect.getLeft() * scaleFactor),
+                    (int) (framebufferHeight - rect.getBottom() * scaleFactor),
+                    Math.max(0, (int) (rect.width() * scaleFactor)),
+                    Math.max(0, (int) (rect.height() * scaleFactor)));
+        } else {
+            RenderSystem.disableScissor();
+        }
+    }
+
+    static class ScissorStack {
+        private final Deque<ScreenRect> stack = new ArrayDeque<>();
+
+        public ScreenRect push(ScreenRect p_281812_) {
+            ScreenRect screenrectangle = this.stack.peekLast();
+            if (screenrectangle != null) {
+                ScreenRect screenrectangle1 = Objects.requireNonNullElse(p_281812_.intersection(screenrectangle),
+                        ScreenRect.empty());
+                this.stack.addLast(screenrectangle1);
+                return screenrectangle1;
+            } else {
+                this.stack.addLast(p_281812_);
+                return p_281812_;
+            }
+        }
+
+        @Nullable
+        public ScreenRect pop() {
+            if (this.stack.isEmpty()) {
+                throw new IllegalStateException("Scissor stack underflow");
+            } else {
+                this.stack.removeLast();
+                return this.stack.peekLast();
+            }
+        }
+
+        public boolean containsPoint(int p_329411_, int p_333404_) {
+            return this.stack.isEmpty() ? true : this.stack.peek().contains(p_329411_, p_333404_);
+        }
+    }
+}
+*///?}

src/main/java/org/saturnclient/impl/ui/SaturnScreenFabric.java

@@ -0,0 +1,264 @@
+package org.saturnclient.impl.ui;
+
+import java.time.Duration;
+import java.time.Instant;
+
+import org.saturnclient.config.Config;
+import org.saturnclient.ui.RenderScope;
+import org.saturnclient.ui.SaturnScreen;
+import org.saturnclient.ui.SaturnScreen.ScreenProvider;
+
+import net.minecraft.client.MinecraftClient;
+//? if >=1.21.9
+import net.minecraft.client.gui.Click;
+import net.minecraft.client.gui.CubeMapRenderer;
+import net.minecraft.client.gui.DrawContext;
+import net.minecraft.client.gui.RotatingCubeMapRenderer;
+import net.minecraft.client.gui.screen.Screen;
+//? if >=1.21.6 {
+import net.minecraft.client.texture.CubemapTexture;
+//?} else {
+/*import net.minecraft.client.texture.ResourceTexture;
+import net.minecraft.client.texture.TextureManager;
+*///?}
+//? if >=1.21.9
+import net.minecraft.client.input.KeyInput;
+//? if <1.21.6 {
+/*import net.minecraft.client.gl.PostEffectProcessor;
+import net.minecraft.client.render.DefaultFramebufferSet;
+import net.minecraft.client.util.Pool;
+*///?}
+import net.minecraft.text.Text;
+import net.minecraft.util.Identifier;
+
+public class SaturnScreenFabric extends Screen implements ScreenProvider {
+    protected static final Identifier PANORAMA = Identifier.of("saturnclient",
+            "textures/gui/title/background/panorama");
+    protected static final CubeMapRenderer PANORAMA_RENDERER = new CubeMapRenderer(PANORAMA);
+
+    public static final RotatingCubeMapRenderer ROTATING_PANORAMA_RENDERER;
+
+    static {
+        ROTATING_PANORAMA_RENDERER = new RotatingCubeMapRenderer(PANORAMA_RENDERER);
+    }
+
+    //? if <1.21.6
+    //private final Pool pool = new Pool(3);
+    public final SaturnScreen screen;
+
+    /** Whether the panorama's textures are loaded; it isn't drawn before (e.g. under the splash). */
+    private static volatile boolean panoramaReady = false;
+
+    public static void preload(MinecraftClient client) {
+        //? if >=1.21.6 {
+        // From 1.21.6 CubeMapRenderer draws from one cube map texture made of panorama_0..5.png.
+        // CubeMapRenderer.registerTextures only stores it for the next resource reload, which has
+        // already happened by now, so register it through the overload that loads it right away.
+        client.getTextureManager().registerTexture(PANORAMA, new CubemapTexture(PANORAMA));
+        //?} else {
+        /*TextureManager textureManager = client.getTextureManager();
+        for (int i = 0; i < 6; i++) {
+            String var10001 = PANORAMA.getPath();
+            Identifier tex = PANORAMA.withPath(var10001 + "_" + i + ".png");
+            ResourceTexture resourceTexture = new ResourceTexture(tex);
+            textureManager.registerTexture(tex, resourceTexture);
+        }
+        *///?}
+        panoramaReady = true;
+    }
+
+    public SaturnScreenFabric(SaturnScreen screen) {
+        super(Text.literal(screen.title));
+        screen.provider = this;
+        this.screen = screen;
+    }
+
+    @Override
+    protected void init() {
+        screen.init();
+    }
+
+    //? if <1.21.6
+    //@SuppressWarnings("deprecation")
+    @Override
+    public void render(DrawContext context, int mouseX, int mouseY, float delta) {
+        if (screen.start == null) {
+            screen.start = Instant.now();
+        }
+        long elapsed = Duration.between(screen.start, Instant.now()).toMillis();
+
+        screen.updateScale();
+
+        mouseX = (int) (mouseX / screen.scale);
+        mouseY = (int) (mouseY / screen.scale);
+
+        // From 1.21.6 the background, blur included, is drawn in renderBackground.
+        //? if <1.21.6 {
+        /*if (isShowingPanorama()) {
+            ROTATING_PANORAMA_RENDERER.render(context, this.width, this.height, screen.backgroundOpacity, delta);
+        }
+
+        // Glass is blurred from the game as it is before this screen blurs it.
+        if (Config.usesGlass()) {
+            context.draw();
+            GlassRenderer.saveBackground();
+        }
+
+        float radius = screen.getBackgroundBlur();
+        PostEffectProcessor postEffectProcessor = radius < 1 ? null : this.client.getShaderLoader().loadPostEffect(
+                Identifier.ofVanilla("blur"),
+                DefaultFramebufferSet.MAIN_ONLY);
+
+        if (postEffectProcessor != null) {
+            //? if >=1.21.5
+            postEffectProcessor.render(this.client.getFramebuffer(), this.pool, pass -> pass.setUniform("Radius", radius));
+            //? if <1.21.5
+            //postEffectProcessor.setUniforms("Radius", radius);
+            //? if <1.21.5
+            //postEffectProcessor.render(this.client.getFramebuffer(), this.pool);
+        }
+        *///?}
+
+        RenderScope renderScope = new RenderScopeImpl(context);
+
+        screen.render(renderScope, mouseX, mouseY, delta, elapsed);
+    }
+
+    //? if >=1.21.6 {
+    // Vanilla's background would cover Saturn's panorama, and blurs by the vanilla setting. The
+    // strength of this blur comes from GameRendererMixin, which gives Saturn's setting instead.
+    @Override
+    public void renderBackground(DrawContext context, int mouseX, int mouseY, float delta) {
+        // The panorama renderer has no opacity (and takes no delta) from 1.21.6, so it's drawn fully
+        // opaque.
+        if (isShowingPanorama()) {
+            ROTATING_PANORAMA_RENDERER.render(context, this.width, this.height, true);
+        }
+
+        if (screen.getBackgroundBlur() >= 1) {
+            context.applyBlur();
+        }
+
+        if (client.world != null) {
+            renderDarkening(context);
+        }
+    }
+    //?}
+
+    /** Whether Saturn's panorama is behind the screen: outside a world, once it's loaded. */
+    private boolean isShowingPanorama() {
+        return panoramaReady && client.world == null && client.getCurrentServerEntry() == null;
+    }
+
+    // 1.21.9 moved mouse and key events to Click and KeyInput.
+    //? if >=1.21.9 {
+    @Override
+    public boolean mouseClicked(Click click, boolean doubled) {
+        if (screen.mouseClicked(click.x(), click.y(), click.button())) {
+            return true;
+        }
+
+        return super.mouseClicked(click, doubled);
+    }
+
+    @Override
+    public boolean mouseDragged(Click click, double offsetX, double offsetY) {
+        // offsetX and offsetY are the drag deltas, as mouseDragged's deltaX and deltaY were before 1.21.9.
+        if (screen.mouseDragged(click.x(), click.y(), click.button(), offsetX, offsetY)) {
+            return true;
+        }
+
+        return super.mouseDragged(click, offsetX, offsetY);
+    }
+
+    @Override
+    public boolean mouseReleased(Click click) {
+        if (screen.mouseReleased(click.x(), click.y(), click.button())) {
+            return true;
+        }
+
+        return super.mouseReleased(click);
+    }
+    //?} else {
+    /*@Override
+    public boolean mouseClicked(double mouseX, double mouseY, int button) {
+        if (screen.mouseClicked(mouseX, mouseY, button)) {
+            return true;
+        }
+        return super.mouseClicked(mouseX, mouseY, button);
+    }
+
+    @Override
+    public boolean mouseDragged(double mouseX, double mouseY, int button, double deltaX, double deltaY) {
+        if (screen.mouseDragged(mouseX, mouseY, button, deltaX, deltaY)) {
+            return true;
+        }
+        return super.mouseDragged(mouseX, mouseY, button, deltaX, deltaY);
+    }
+
+    @Override
+    public boolean mouseReleased(double mouseX, double mouseY, int button) {
+        if (screen.mouseReleased(mouseX, mouseY, button)) {
+            return true;
+        }
+        return super.mouseReleased(mouseX, mouseY, button);
+    }
+    *///?}
+
+    @Override
+    public boolean mouseScrolled(double mouseX, double mouseY, double horizontalAmount, double verticalAmount) {
+        if (screen.mouseScrolled(mouseX, mouseY, horizontalAmount, verticalAmount)) {
+            return true;
+        }
+        return super.mouseScrolled(mouseX, mouseY, horizontalAmount, verticalAmount);
+    }
+
+    //? if >=1.21.9 {
+    @Override
+    public boolean keyPressed(KeyInput input) {
+        if (screen.keyPressed(input.getKeycode(), input.scancode(), input.modifiers())) {
+            return true;
+        }
+
+        return super.keyPressed(input);
+    }
+    //?} else {
+    /*@Override
+    public boolean keyPressed(int keyCode, int scanCode, int modifiers) {
+        if (screen.keyPressed(keyCode, scanCode, modifiers)) {
+            return true;
+        }
+        return super.keyPressed(keyCode, scanCode, modifiers);
+    }
+    *///?}
+
+    //? if >=1.21.11 {
+    @Override
+    public void resize(int width, int height) {
+        screen.resize(width, height);
+        super.resize(width, height);
+    }
+    //?} else {
+    /*@Override
+    public void resize(MinecraftClient client, int width, int height) {
+        screen.resize(width, height);
+        super.resize(client, width, height);
+    }
+    *///?}
+
+    @Override
+    public void close() {
+        this.screen.onClose();
+        super.close();
+    }
+
+    @Override
+    public int getWidth() {
+        return width;
+    }
+
+    @Override
+    public int getHeight() {
+        return height;
+    }
+}

src/main/java/org/saturnclient/saturnclient/SaturnRenderState.java

@@ -0,0 +1,24 @@
+package org.saturnclient.saturnclient;
+
+//? if >=1.21.11
+import org.jspecify.annotations.NonNull;
+//? if >=1.21.8 {
+import org.saturnclient.client.player.SaturnPlayer;
+
+import net.fabricmc.fabric.api.client.rendering.v1.RenderStateDataKey;
+//?}
+
+/**
+ * The key PlayerEntityRendererMixin stores each player's SaturnPlayer under in their render state.
+ * Fabric API's render state data only exists from 1.21.8, so older versions look players up by name.
+ */
+public class SaturnRenderState {
+    //? if >=1.21.11 {
+    @NonNull
+    public static RenderStateDataKey<SaturnPlayer> saturnDataKey = RenderStateDataKey
+            .create(() -> "saturn-client-player");
+    //?} else if >=1.21.8 {
+    /*public static RenderStateDataKey<SaturnPlayer> saturnDataKey = RenderStateDataKey
+            .create(() -> "saturn-client-player");
+    *///?}
+}

src/main/java/org/saturnclient/saturnclient/event/KeyInputHandler.java

@@ -4,17 +4,18 @@ import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientTickEvents;
 import net.fabricmc.fabric.api.client.keybinding.v1.KeyBindingHelper;
 import net.minecraft.client.option.KeyBinding;
 import net.minecraft.client.util.InputUtil;
+//? if >=1.21.9
 import net.minecraft.util.Identifier;
 
 import org.saturnclient.config.Config;
 import org.saturnclient.saturnclient.SaturnClient;
 import org.saturnclient.common.provider.Providers;
+import org.saturnclient.client.ServiceClient;
+import org.saturnclient.emotes.fabric.Emotes;
+import org.saturnclient.impl.ui.SaturnScreenFabric;
 import org.saturnclient.ui.screens.EmoteWheel;
 import org.saturnclient.ui.screens.ShiftMenu;
 
-// import dev.kosmx.playerAnim.api.layered.AnimationStack;
-// import dev.kosmx.playerAnim.minecraftApi.PlayerAnimationAccess;
-
 import org.lwjgl.glfw.GLFW;
 
 /**
@@ -22,17 +23,28 @@ import org.lwjgl.glfw.GLFW;
  * Manages keybindings and their associated actions.
  */
 public class KeyInputHandler {
+    //? if >=1.21.9 {
     private static final Identifier KEY_CATEGORY = Identifier.of("saturnclient", "key.category.saturnclient");
+    //?} else
+    //private static final String KEY_CATEGORY = "key.category.saturnclient";
     private static final String MAIN_MENU_KEY_ID = "key.saturnclient.main_menu";
     private static final int DEFAULT_MENU_KEY = GLFW.GLFW_KEY_RIGHT_SHIFT;
     private static KeyBinding mainMenuKeyBinding;
 
     public static void register() {
+        //? if >=1.21.9 {
         mainMenuKeyBinding = KeyBindingHelper.registerKeyBinding(
                 new KeyBinding(
                         MAIN_MENU_KEY_ID,
                         DEFAULT_MENU_KEY,
                         KeyBinding.Category.create(KEY_CATEGORY)));
+        //?} else {
+        /*mainMenuKeyBinding = KeyBindingHelper.registerKeyBinding(new KeyBinding(
+                MAIN_MENU_KEY_ID,
+                InputUtil.Type.KEYSYM,
+                DEFAULT_MENU_KEY,
+                KEY_CATEGORY));
+        *///?}
 
         // Register the event handler for the main menu key
         ClientTickEvents.END_CLIENT_TICK.register(client -> {
@@ -40,18 +52,27 @@ public class KeyInputHandler {
                 Providers.saturn.getClient().setScreen(new ShiftMenu());
             }
 
-            if (Config.openEmoteWheel.wasKeyPressed() && client.currentScreen == null
+            // The emote wheel key opens the wheel, and closes it again while it's open. Closing it
+            // from the screen's own key handling would reopen it on the next tick, since the key is
+            // still down and no screen is open by then.
+            if (Config.openEmoteWheel.wasKeyPressed()
+                    //? if >=1.21.9 {
                     && !InputUtil.isKeyPressed(client.getWindow(), GLFW.GLFW_KEY_F3)) {
-                Providers.saturn.getClient().setScreen(new EmoteWheel());
+                    //?} else
+                    //&& !InputUtil.isKeyPressed(client.getWindow().getHandle(), GLFW.GLFW_KEY_F3)) {
+                if (client.currentScreen == null) {
+                    Providers.saturn.getClient().setScreen(new EmoteWheel());
+                } else if (client.currentScreen instanceof SaturnScreenFabric saturnScreen
+                        && saturnScreen.screen instanceof EmoteWheel) {
+                    saturnScreen.close();
+                }
             }
 
-            if (SaturnClient.client.player != null && SaturnClient.client.player.isSneaking()) {
+            // Sneaking cancels your own emote, for everyone.
-                // AnimationStack animationStack =
+            if (SaturnClient.client.player != null && SaturnClient.client.player.isSneaking()
-                // PlayerAnimationAccess.getPlayerAnimLayer(SaturnClient.client.player);
+                    && Emotes.playing(SaturnClient.client.player.getUuid()).isPresent()) {
-                // if (animationStack.isActive() && animationStack.getPriority() == 1000) {
+                Emotes.stop(SaturnClient.client.player.getUuid());
-                // animationStack.removeLayer(1000);
+                ServiceClient.emote("");
-                // ServiceClient.emote("");
-                // }
             }
         });
     }

src/main/java/org/saturnclient/saturnclient/mixin/DrawContextAccessor.java

@@ -1,12 +1,20 @@
 package org.saturnclient.saturnclient.mixin;
 
 import net.minecraft.client.gui.DrawContext;
+//? if >=1.21.6 {
 import net.minecraft.client.gui.render.state.GuiRenderState;
+//?} else
+//import net.minecraft.client.render.VertexConsumerProvider;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.gen.Accessor;
 
 @Mixin(DrawContext.class)
 public interface DrawContextAccessor {
+    //? if >=1.21.6 {
     @Accessor("state")
     GuiRenderState getState();
+    //?} else {
+    /*@Accessor("vertexConsumers")
+    VertexConsumerProvider.Immediate getVertexConsumers();
+    *///?}
 }

src/main/java/org/saturnclient/saturnclient/mixin/PlayerEntityRendererMixin.java

@@ -1,12 +1,16 @@
 package org.saturnclient.saturnclient.mixin;
 
+//? if >=1.21.9 {
 import net.minecraft.client.network.ClientPlayerLikeEntity;
+import net.minecraft.entity.PlayerLikeEntity;
+//?} else
+//import net.minecraft.client.network.AbstractClientPlayerEntity;
 import net.minecraft.client.render.entity.EntityRendererFactory;
 import net.minecraft.client.render.entity.LivingEntityRenderer;
 import net.minecraft.client.render.entity.PlayerEntityRenderer;
 import net.minecraft.client.render.entity.model.PlayerEntityModel;
 import net.minecraft.client.render.entity.state.PlayerEntityRenderState;
-import net.minecraft.entity.PlayerLikeEntity;
+import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.text.MutableText;
 import net.minecraft.text.Text;
@@ -36,16 +40,30 @@ public abstract class PlayerEntityRendererMixin
         this.addFeature(new CloakFeatureRenderer(this, ctx.getEquipmentModelLoader()));
     }
 
+    // Adds the role icon to the player's name, and stores the SaturnPlayer in the render state for the
+    // cloak and hat (Fabric API only has render state data from 1.21.8).
+    //? if >=1.21.9 {
     @Inject(method = "updateRenderState", at = @At("TAIL"))
     public <A extends PlayerLikeEntity & ClientPlayerLikeEntity> void updateRenderState(
-            A entity, PlayerEntityRenderState state,
+            A entity, PlayerEntityRenderState state, float f, CallbackInfo ci) {
-            float f, CallbackInfo ci) {
+        saturn$applyPlayer(entity, state);
+    }
+    //?} else {
+    /*@Inject(method = "updateRenderState", at = @At("TAIL"))
+    public void updateRenderState(
+            AbstractClientPlayerEntity entity, PlayerEntityRenderState state, float f, CallbackInfo ci) {
+        saturn$applyPlayer(entity, state);
+    }
+    *///?}
+
+    private void saturn$applyPlayer(Entity entity, PlayerEntityRenderState state) {
         if (entity == null) {
             return;
         }
 
         SaturnPlayer player = SaturnPlayer.get(entity.getUuid());
 
+        //? if >=1.21.8
         state.setData(SaturnRenderState.saturnDataKey, player);
 
         if (player != null && state.displayName != null) {

src/main/java/org/saturnclient/saturnclient/mixin/SplashOverlayMixin.java

@@ -15,6 +15,7 @@ import org.spongepowered.asm.mixin.Final;
 import net.minecraft.client.MinecraftClient;
 import net.minecraft.client.gui.DrawContext;
 import net.minecraft.client.gui.screen.SplashOverlay;
+//? if >=1.21.11
 import net.minecraft.client.util.Window;
 import net.minecraft.resource.ResourceReload;
 import net.minecraft.util.Util;
@@ -125,8 +126,10 @@ public abstract class SplashOverlayMixin {
     private void renderProgressBar(RenderScope scope, DrawContext context, int screenWidth, int screenHeight,
             int alpha) {
         int progressY = ((screenHeight - 5) / 2) + 25;
-        // context.drawBorder((screenWidth - 120) / 2, progressY, 120, 5,
+        //? if >=1.21.9 {
-        // Theme.withAlpha(alpha, 0xFFFFFFFF));
+        context.drawStrokedRectangle((screenWidth - 120) / 2, progressY, 120, 5, Theme.withAlpha(alpha, 0xFFFFFFFF));
+        //?} else
+        //context.drawBorder((screenWidth - 120) / 2, progressY, 120, 5, Theme.withAlpha(alpha, 0xFFFFFFFF));
 
         int progressWidth = Math.min((int) (progress * 120), 120);
         int progressX = (screenWidth - 120) / 2;
@@ -155,9 +158,13 @@ public abstract class SplashOverlayMixin {
 
             reloadCompleteTime = Util.getMeasuringTimeMs();
 
+            //? if >=1.21.11
             Window window = client.getWindow();
             if (client.currentScreen != null) {
+                //? if >=1.21.11 {
                 client.currentScreen.init(window.getScaledWidth(), window.getScaledHeight());
+                //?} else
+                //client.currentScreen.init(client, context.getScaledWindowWidth(), context.getScaledWindowHeight());
             }
         }
     }

src/main/java/org/saturnclient/saturnclient/mixin/TabListMixin.java

@@ -27,8 +27,13 @@ public abstract class TabListMixin {
     private void saturn$addSaturnIcon(CallbackInfoReturnable<Text> cir) {
         PlayerListEntry entry = (PlayerListEntry) (Object) this;
         GameProfile profile = entry.getProfile();
+        //? if >=1.21.9 {
         String name = profile.name();
         UUID uuid = profile.id();
+        //?} else {
+        /*String name = profile.getName();
+        UUID uuid = profile.getId();
+        *///?}
 
         if (SaturnPlayer.get(name, uuid) == null) {
             return;

src/main/resources/assets/saturnclient/shaders/core/glass.fsh

@@ -0,0 +1,38 @@
+#version 330
+
+// Saturn's glass: the blurred game behind the screen, cut to a panel's shape. For 1.21.6 and
+// later; glass_pre_1_21_6.fsh (with glass.json, the program 1.21.4 loads) is for older versions.
+
+// Vanilla's transforms, laid out as the version has them: 1.21.6 to 1.21.10 end with LineWidth, which
+// 1.21.11 dropped (GlassRenderer defines HAS_LINE_WIDTH there). Not imported: the include only exists
+// from 1.21.6, and 1.21.4 and 1.21.5 still read every shader's imports while loading resources.
+layout(std140) uniform DynamicTransforms {
+    mat4 ModelViewMat;
+    vec4 ColorModulator;
+    vec3 ModelOffset;
+    mat4 TextureMat;
+#ifdef HAS_LINE_WIDTH
+    float LineWidth;
+#endif
+};
+
+// The panel's rounded rectangle, the same texture its background is drawn with
+uniform sampler2D Sampler0;
+// The game behind the screen, blurred, the size of the framebuffer
+uniform sampler2D Sampler1;
+
+in vec2 texCoord0;
+in vec4 vertexColor;
+
+out vec4 fragColor;
+
+void main() {
+    float mask = texture(Sampler0, texCoord0).a * vertexColor.a;
+    if (mask == 0.0) {
+        discard;
+    }
+
+    // The blurred copy lines up with the framebuffer being drawn to.
+    vec2 screenUv = gl_FragCoord.xy / vec2(textureSize(Sampler1, 0));
+    fragColor = vec4(texture(Sampler1, screenUv).rgb, mask) * ColorModulator;
+}

src/main/resources/assets/saturnclient/shaders/core/glass.json

@@ -0,0 +1,13 @@
+{
+    "vertex": "minecraft:core/position_tex_color",
+    "fragment": "saturnclient:core/glass_pre_1_21_6",
+    "samplers": [
+        { "name": "Sampler0" },
+        { "name": "Sampler1" }
+    ],
+    "uniforms": [
+        { "name": "ModelViewMat", "type": "matrix4x4", "count": 16, "values": [ 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0 ] },
+        { "name": "ProjMat", "type": "matrix4x4", "count": 16, "values": [ 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0 ] },
+        { "name": "ColorModulator", "type": "float", "count": 4, "values": [ 1.0, 1.0, 1.0, 1.0 ] }
+    ]
+}

src/main/resources/assets/saturnclient/shaders/core/glass_pre_1_21_6.fsh

@@ -0,0 +1,27 @@
+#version 150
+
+// Saturn's glass (see glass.fsh), for 1.21.4 and 1.21.5, which set uniforms one by one instead of in
+// blocks.
+
+uniform vec4 ColorModulator;
+
+// The panel's rounded rectangle, the same texture its background is drawn with
+uniform sampler2D Sampler0;
+// The game behind the screen, blurred, the size of the framebuffer
+uniform sampler2D Sampler1;
+
+in vec2 texCoord0;
+in vec4 vertexColor;
+
+out vec4 fragColor;
+
+void main() {
+    float mask = texture(Sampler0, texCoord0).a * vertexColor.a;
+    if (mask == 0.0) {
+        discard;
+    }
+
+    // The blurred copy lines up with the framebuffer being drawn to.
+    vec2 screenUv = gl_FragCoord.xy / vec2(textureSize(Sampler1, 0));
+    fragColor = vec4(texture(Sampler1, screenUv).rgb, mask) * ColorModulator;
+}

stonecutter.gradle.kts

@@ -0,0 +1,71 @@
+plugins {
+    id("dev.kikugie.stonecutter")
+}
+
+// The version whose code is uncommented in src/. Switch with "Set active project to <v>", and run
+// "Reset active project" before committing.
+stonecutter active "1.21.11"
+
+subprojects {
+    apply(plugin = "java")
+
+    repositories {
+        maven("https://maven.fabricmc.net/")
+        maven("https://git.selimaj.dev/api/packages/selimaj-dev/maven")
+        maven("https://git.selimaj.dev/api/packages/saturnclientmc/maven")
+        mavenCentral()
+    }
+
+    dependencies {
+        "implementation"("de.javagl:obj:0.4.0")
+        "implementation"("com.formdev:svgSalamander:1.1.4")
+        "implementation"("com.fasterxml.jackson.core:jackson-databind:2.17.0")
+        "implementation"("com.fasterxml.jackson.core:jackson-annotations:2.17.0")
+        "implementation"("com.fasterxml.jackson.core:jackson-core:2.17.0")
+    }
+}
+
+// Every Minecraft version builds on common and ships its resources.
+configure(subprojects.filter { it.name != "common" }) {
+    dependencies {
+        "implementation"(project(":common"))
+    }
+
+    extensions.configure<SourceSetContainer> {
+        named("main") {
+            resources.srcDir(project(":common").file("src/main/resources"))
+        }
+    }
+}
+
+// remapJar loads a whole Minecraft classpath and remaps a ~50 MB jar. Eight at once don't fit in the
+// daemon's heap (org.gradle.jvmargs) and the build stalls in garbage collection, so only two run
+// together. Everything else still builds in parallel.
+abstract class RemapLimit : BuildService<BuildServiceParameters.None>
+
+val remapLimit = gradle.sharedServices.registerIfAbsent("remapLimit", RemapLimit::class) {
+    maxParallelUsages = 2
+}
+
+subprojects {
+    tasks.matching { it.name == "remapJar" }.configureEach {
+        usesService(remapLimit)
+    }
+}
+
+tasks.register("buildAll") {
+    group = "build"
+    description = "Builds every Minecraft version's remapped jar and collects them in build/allJars"
+
+    val remapJars = subprojects.flatMap { it.tasks.matching { task -> task.name == "remapJar" } }
+    dependsOn(remapJars)
+
+    doLast {
+        val outputDir = layout.buildDirectory.dir("allJars").get().asFile
+        outputDir.mkdirs()
+        remapJars.map { (it as AbstractArchiveTask).archiveFile.get().asFile }
+            .filter { it.exists() && !it.name.contains("sources") }
+            .forEach { it.copyTo(outputDir.resolve(it.name), overwrite = true) }
+        println("All remapped jars collected in: $outputDir")
+    }
+}

versions/1.21.10/build.gradle

@@ -1,109 +0,0 @@
-plugins {
-	id 'net.fabricmc.fabric-loom-remap' version "${loom_version}"
-	id 'maven-publish'
-}
-
-version = "${project.mod_version}+${project.minecraft_version}"
-group = project.maven_group
-
-base {
-	archivesName = project.archives_base_name
-}
-
-repositories {
-    // maven { name = "KoSmX Maven"; url = 'https://maven.kosmx.dev/' }
-	maven { name = "Selimaj"; url = 'https://git.selimaj.dev/api/packages/selimaj-dev/maven' }
-}
-
-dependencies {
-	// To change the versions see the gradle.properties file
-	minecraft "com.mojang:minecraft:${project.minecraft_version}"
-	mappings "net.fabricmc:yarn:${project.yarn_mappings}:v2"
-	modImplementation "net.fabricmc:fabric-loader:${project.loader_version}"
-
-	// Fabric API. This is technically optional, but you probably want it anyway.
-	modImplementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_api_version}"
-	
-	// Player Animation Library
-    // include modImplementation(
-    //     "dev.kosmx.player-anim:player-animation-lib-fabric:${project.player_anim}"
-    // )
-
-	implementation project(":common")
-
-	include implementation("dev.selimaj:session-java:0.2.0")
-    include implementation("de.javagl:obj:0.4.0")
-    include implementation("com.formdev:svgSalamander:1.1.4")
-    include implementation("com.fasterxml.jackson.core:jackson-databind:2.17.0")
-    include implementation("com.fasterxml.jackson.core:jackson-annotations:2.17.0")
-    include implementation("com.fasterxml.jackson.core:jackson-core:2.17.0")
-
-    // Optional: BendyLib
-    // include modRuntimeOnly(
-    //     "io.github.kosmx.bendy-lib:bendy-lib-fabric:${project.bendylib_version}"
-    // )
-}
-
-/*
- * ================================================================
- * Resource Processing
- * ================================================================
- * Injects version values into fabric.mod.json.
- */
-processResources {
-    inputs.property "version", project.version
-    inputs.property "minecraft_version", project.minecraft_version
-    inputs.property "loader_version", project.loader_version
-    filteringCharset "UTF-8"
-
-    filesMatching("fabric.mod.json") {
-        expand(
-                "version": project.version,
-                "minecraft_version": project.minecraft_version,
-                "loader_version": project.loader_version
-        )
-    }
-}
-
-tasks.withType(JavaCompile).configureEach {
-	it.options.release = 21
-}
-
-java {
-	// Loom will automatically attach sourcesJar to a RemapSourcesJar task and to the "build" task
-	// if it is present.
-	// If you remove this line, sources will not be generated.
-	withSourcesJar()
-
-	sourceCompatibility = JavaVersion.VERSION_21
-	targetCompatibility = JavaVersion.VERSION_21
-}
-
-jar {
-	inputs.property "archivesName", project.base.archivesName
-
-	from("LICENSE") {
-		rename { "${it}_${inputs.properties.archivesName}"}
-	}
-
-	from project(":common").sourceSets.main.output
-	duplicatesStrategy = DuplicatesStrategy.EXCLUDE
-}
-
-// configure the maven publication
-publishing {
-	publications {
-		create("mavenJava", MavenPublication) {
-			artifactId = project.archives_base_name
-			from components.java
-		}
-	}
-
-	// See https://docs.gradle.org/current/userguide/publishing_maven.html for information on how to set up publishing.
-	repositories {
-		// Add repositories to publish to here.
-		// Notice: This block does NOT have the same function as the block in the top level.
-		// The repositories here will be used for publishing your artifact, not for
-		// retrieving dependencies.
-	}
-}

versions/1.21.10/gradle.properties

@@ -9,13 +9,10 @@ org.gradle.configuration-cache=false
 # check these on https://fabricmc.net/develop
 minecraft_version=1.21.10
 yarn_mappings=1.21.10+build.3
-loader_version=0.19.0
+loader_version=0.19.5
-loom_version=1.15-SNAPSHOT
 
 fabric_api_version=0.138.4+1.21.10
 
 # Mod Properties
 maven_group=org.saturnclient
 archives_base_name=saturn-client
-
-# player_anim = 2.0.2+1.21.5

versions/1.21.10/settings.gradle

@@ -1,10 +0,0 @@
-pluginManagement {
-	repositories {
-		maven {
-			name = 'Fabric'
-			url = 'https://maven.fabricmc.net/'
-		}
-		mavenCentral()
-		gradlePluginPortal()
-	}
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/cosmetics/CloakFeatureRenderer.java

@@ -1,462 +0,0 @@
-package org.saturnclient.impl.cosmetics;
-
-import java.util.Arrays;
-
-import org.joml.Matrix3f;
-import org.joml.Matrix4f;
-import org.joml.Vector3f;
-import org.joml.Vector4f;
-import org.saturnclient.client.player.SaturnPlayer;
-import org.saturnclient.common.ref.asset.IdentifierRef;
-import org.saturnclient.config.Config;
-import org.saturnclient.cosmetics.Cloaks;
-import org.saturnclient.impl.cosmetics.utils.ShaderUtils;
-import org.saturnclient.saturnclient.SaturnRenderState;
-
-import net.minecraft.client.render.OverlayTexture;
-import net.minecraft.client.render.VertexConsumer;
-import net.minecraft.client.render.command.OrderedRenderCommandQueue;
-import net.minecraft.client.render.entity.equipment.EquipmentModel;
-import net.minecraft.client.render.entity.equipment.EquipmentModelLoader;
-import net.minecraft.client.render.entity.equipment.EquipmentModel.LayerType;
-import net.minecraft.client.render.entity.feature.FeatureRenderer;
-import net.minecraft.client.render.entity.feature.FeatureRendererContext;
-import net.minecraft.client.render.entity.model.PlayerEntityModel;
-import net.minecraft.client.render.entity.state.PlayerEntityRenderState;
-import net.minecraft.client.util.math.MatrixStack;
-import net.minecraft.component.DataComponentTypes;
-import net.minecraft.component.type.EquippableComponent;
-import net.minecraft.item.ItemStack;
-import net.minecraft.item.equipment.EquipmentAsset;
-import net.minecraft.registry.RegistryKey;
-import net.minecraft.util.math.MathHelper;
-import net.minecraft.util.math.RotationAxis;
-import net.minecraft.util.math.Vec3d;
-
-/**
- * The cloak renderer
- * - **Efficient**: uses a image only consisting of the cloak texture, 16x8
- * whitespace.
- * - **Curving**: Curves when player velocity increases.
- * - **Wavey**: Makes the cloak feel like wind, when jump sprinting.
- */
-public class CloakFeatureRenderer extends FeatureRenderer<PlayerEntityRenderState, PlayerEntityModel> {
-    private final EquipmentModelLoader equipmentModelLoader;
-    private static final int PARTS = 24;
-    private final float[] segmentValues = new float[PARTS];
-    private static final int H_PARTS = 6;
-    private float horizontalCurve = 0.0f;
-
-    private static final float TEX_W = 176f;
-    private static final float TEX_H = 138f;
-
-    private static final class PxRect {
-        final int x, y, w, h;
-
-        PxRect(int x, int y, int w, int h) {
-            this.x = x;
-            this.y = y;
-            this.w = w;
-            this.h = h;
-        }
-
-        float u1() {
-            return x / TEX_W;
-        }
-
-        float v1() {
-            return y / TEX_H;
-        }
-
-        float u2() {
-            return (x + w) / TEX_W;
-        }
-
-        float v2() {
-            return (y + h) / TEX_H;
-        }
-    }
-
-    private static final PxRect FRONT_RECT = new PxRect(8, 8, 80, 128);
-    private static final PxRect BACK_RECT = new PxRect(96, 8, 80, 128);
-    private static final PxRect LEFT_EDGE_RECT = new PxRect(0, 8, 8, 128);
-    private static final PxRect RIGHT_EDGE_RECT = new PxRect(88, 8, 8, 128);
-    private static final PxRect TOP_RECT = new PxRect(8, 0, 80, 8);
-    private static final PxRect BOTTOM_RECT = new PxRect(88, 0, 80, 8);
-
-    public CloakFeatureRenderer(FeatureRendererContext<PlayerEntityRenderState, PlayerEntityModel> context,
-            EquipmentModelLoader equipmentModelLoader) {
-        super(context);
-        this.equipmentModelLoader = equipmentModelLoader;
-        Arrays.fill(segmentValues, 0.0f);
-    }
-
-    private boolean hasCustomModelForLayer(ItemStack stack, EquipmentModel.LayerType layerType) {
-        EquippableComponent equippableComponent = (EquippableComponent) stack
-                .get(DataComponentTypes.EQUIPPABLE);
-        if (equippableComponent != null && !equippableComponent.assetId().isEmpty()) {
-            EquipmentModel equipmentModel = this.equipmentModelLoader
-                    .get((RegistryKey<EquipmentAsset>) equippableComponent.assetId().get());
-            return !equipmentModel.getLayers(layerType).isEmpty();
-        } else {
-            return false;
-        }
-    }
-
-    private void vertex(VertexConsumer vc, Matrix4f posMat, Matrix3f normalMat,
-            Vec3d pos, int color,
-            float u, float v, int overlay, int light,
-            float nx, float ny, float nz) {
-
-        Vector4f p = new Vector4f((float) pos.x, (float) pos.y, (float) pos.z, 1.0f);
-        p.mul(posMat);
-
-        Vector3f n = new Vector3f(nx, ny, nz);
-        n.mul(normalMat);
-
-        vc.vertex(
-                p.x(), p.y(), p.z(),
-                color,
-                u, v,
-                overlay, light,
-                n.x(), n.y(), n.z());
-    }
-
-    private void renderCapeQuad(VertexConsumer vertexConsumer, MatrixStack.Entry entry,
-            Vec3d bottomLeft, Vec3d bottomRight, Vec3d topRight, Vec3d topLeft,
-            float u1, float v1, float u2, float v2, int light, int overlay,
-            float normalX, float normalY, float normalZ, boolean flipWinding) {
-        // Extract matrix (you must transform positions manually now)
-        Matrix4f pos = entry.getPositionMatrix();
-        Matrix3f normalMat = entry.getNormalMatrix();
-
-        int color = 0xFFFFFFFF; // white RGBA
-
-        if (!flipWinding) {
-            // CCW
-            vertex(vertexConsumer, pos, normalMat, bottomLeft, color, u1, v2, overlay, light, normalX, normalY,
-                    normalZ);
-            vertex(vertexConsumer, pos, normalMat, bottomRight, color, u2, v2, overlay, light, normalX, normalY,
-                    normalZ);
-            vertex(vertexConsumer, pos, normalMat, topRight, color, u2, v1, overlay, light, normalX, normalY, normalZ);
-            vertex(vertexConsumer, pos, normalMat, topLeft, color, u1, v1, overlay, light, normalX, normalY, normalZ);
-        } else {
-            // CW
-            vertex(vertexConsumer, pos, normalMat, topLeft, color, u1, v1, overlay, light, normalX, normalY, normalZ);
-            vertex(vertexConsumer, pos, normalMat, topRight, color, u2, v1, overlay, light, normalX, normalY, normalZ);
-            vertex(vertexConsumer, pos, normalMat, bottomRight, color, u2, v2, overlay, light, normalX, normalY,
-                    normalZ);
-            vertex(vertexConsumer, pos, normalMat, bottomLeft, color, u1, v2, overlay, light, normalX, normalY,
-                    normalZ);
-        }
-    }
-
-    private void renderCape(MatrixStack.Entry entry, VertexConsumer vertexConsumer,
-            PlayerEntityRenderState playerState, int light, int overlay) {
-
-        float capeWidth = 10.0f / 16.0f;
-        float capeHeight = 16.0f / 16.0f;
-        float capeDepth = 1.0f / 16.0f;
-
-        final float frontU1 = FRONT_RECT.u1();
-        final float frontU2 = FRONT_RECT.u2();
-        final float frontV1 = FRONT_RECT.v1();
-        final float frontV2 = FRONT_RECT.v2();
-        final float frontPartV = (frontV2 - frontV1) / PARTS;
-
-        final float backU1 = BACK_RECT.u1();
-        final float backU2 = BACK_RECT.u2();
-        final float backV1 = BACK_RECT.v1();
-        final float backV2 = BACK_RECT.v2();
-        final float backPartV = (backV2 - backV1) / PARTS;
-
-        final float leftU1 = LEFT_EDGE_RECT.u1();
-        final float leftU2 = LEFT_EDGE_RECT.u2();
-        final float leftV1 = LEFT_EDGE_RECT.v1();
-        final float leftV2 = LEFT_EDGE_RECT.v2();
-        final float leftPartV = (leftV2 - leftV1) / PARTS;
-
-        final float rightU1 = RIGHT_EDGE_RECT.u1();
-        final float rightU2 = RIGHT_EDGE_RECT.u2();
-        final float rightV1 = RIGHT_EDGE_RECT.v1();
-        final float rightV2 = RIGHT_EDGE_RECT.v2();
-        final float rightPartV = (rightV2 - rightV1) / PARTS;
-
-        final float topU1 = TOP_RECT.u1();
-        final float topU2 = TOP_RECT.u2();
-        final float topV1 = TOP_RECT.v1();
-        final float topV2 = TOP_RECT.v2();
-
-        final float bottomU1 = BOTTOM_RECT.u1();
-        final float bottomU2 = BOTTOM_RECT.u2();
-        final float bottomV1 = BOTTOM_RECT.v1();
-        final float bottomV2 = BOTTOM_RECT.v2();
-
-        // =============================
-        // 1. Spine
-        // =============================
-
-        float[] spineY = new float[PARTS + 1];
-        float[] spineZ = new float[PARTS + 1];
-
-        float partHeight = capeHeight / PARTS;
-
-        for (int i = 0; i < PARTS; i++) {
-            float angle = (2.0f - segmentValues[i]) * ((float) Math.PI / 2f);
-            float dirY = -(float) Math.cos(angle);
-            float dirZ = (float) Math.sin(angle);
-
-            spineY[i + 1] = spineY[i] + dirY * partHeight;
-            spineZ[i + 1] = spineZ[i] + dirZ * partHeight;
-        }
-
-        // =============================
-        // 2. Grid
-        // =============================
-
-        Vec3d[][] inner = new Vec3d[H_PARTS + 1][PARTS + 1];
-        Vec3d[][] outer = new Vec3d[H_PARTS + 1][PARTS + 1];
-
-        for (int x = 0; x <= H_PARTS; x++) {
-
-            float t = (float) x / H_PARTS;
-            float xPos = -capeWidth / 2.0f + capeWidth * t;
-
-            float centered = t - 0.5f;
-            float curve = (centered * centered) * 0.3f;
-            float zCurve = (curve * horizontalCurve) / PARTS;
-
-            for (int i = 0; i <= PARTS; i++) {
-                float y = spineY[i];
-                float z = spineZ[i];
-
-                int idx = Math.min(i, PARTS - 1);
-                // angle: 0 is horizontal (y-flat), PI/2 is vertical (z-flat)
-                float angle = (2.0f - segmentValues[idx]) * ((float) Math.PI / 2f);
-
-                float cosA = (float) Math.cos(angle);
-                float sinA = (float) Math.sin(angle);
-
-                // Calculate how much the horizontal curve shifts the vertex
-                float currentCurve = zCurve * i;
-
-                // Rotate the curve offset so it aligns with the cape's tilt
-                float curveY = sinA * currentCurve;
-                float curveZ = cosA * currentCurve;
-
-                float thickY = sinA * capeDepth;
-                float thickZ = cosA * capeDepth;
-
-                inner[x][i] = new Vec3d(xPos, y - curveY, z - curveZ);
-                outer[x][i] = new Vec3d(xPos, (y - curveY) - thickY, (z - curveZ) - thickZ);
-            }
-
-        }
-
-        // =============================
-        // 3. Front + Back
-        // =============================
-
-        for (int x = 0; x < H_PARTS; x++) {
-
-            float uStart = frontU1 + (frontU2 - frontU1) * (1.0f - ((float) x / H_PARTS));
-            float uEnd = frontU1 + (frontU2 - frontU1) * (1.0f - ((float) (x + 1) / H_PARTS));
-
-            float buStart = backU1 + (backU2 - backU1) * ((float) x / H_PARTS);
-            float buEnd = backU1 + (backU2 - backU1) * ((float) (x + 1) / H_PARTS);
-
-            for (int i = 0; i < PARTS; i++) {
-
-                float vStart = frontV1 + frontPartV * i;
-                float vEnd = frontV1 + frontPartV * (i + 1);
-
-                float bvStart = backV1 + backPartV * i;
-                float bvEnd = backV1 + backPartV * (i + 1);
-
-                Vec3d innerTL = inner[x + 1][i];
-                Vec3d innerTR = inner[x][i];
-                Vec3d innerBL = inner[x + 1][i + 1];
-                Vec3d innerBR = inner[x][i + 1];
-
-                Vec3d outerTL = outer[x + 1][i];
-                Vec3d outerTR = outer[x][i];
-                Vec3d outerBL = outer[x + 1][i + 1];
-                Vec3d outerBR = outer[x][i + 1];
-
-                // FRONT
-                renderCapeQuad(vertexConsumer, entry,
-                        outerBR, outerBL, outerTL, outerTR,
-                        uStart, vStart, uEnd, vEnd,
-                        light, overlay, 0, 0, 1, false);
-
-                // BACK
-                renderCapeQuad(vertexConsumer, entry,
-                        innerBL, innerBR, innerTR, innerTL,
-                        buEnd, bvStart, buStart, bvEnd,
-                        light, overlay, 0, 0, -1, false);
-            }
-        }
-
-        // =============================
-        // 4. LEFT SIDE (x = H_PARTS)
-        // =============================
-
-        for (int i = 0; i < PARTS; i++) {
-
-            Vec3d innerTop = inner[H_PARTS][i];
-            Vec3d innerBot = inner[H_PARTS][i + 1];
-            Vec3d outerTop = outer[H_PARTS][i];
-            Vec3d outerBot = outer[H_PARTS][i + 1];
-
-            float vStart = leftV1 + leftPartV * i;
-            float vEnd = leftV1 + leftPartV * (i + 1);
-
-            renderCapeQuad(vertexConsumer, entry,
-                    innerTop, outerTop, outerBot, innerBot,
-                    leftU1, vEnd,
-                    leftU2, vStart,
-                    light, overlay, -1, 0, 0, false);
-        }
-
-        // =============================
-        // 5. RIGHT SIDE (x = 0)
-        // =============================
-
-        for (int i = 0; i < PARTS; i++) {
-
-            Vec3d innerTop = inner[0][i];
-            Vec3d innerBot = inner[0][i + 1];
-            Vec3d outerTop = outer[0][i];
-            Vec3d outerBot = outer[0][i + 1];
-
-            float vStart = rightV1 + rightPartV * i;
-            float vEnd = rightV1 + rightPartV * (i + 1);
-
-            renderCapeQuad(vertexConsumer, entry,
-                    outerTop, innerTop, innerBot, outerBot,
-                    rightU1, vEnd,
-                    rightU2, vStart,
-                    light, overlay, 1, 0, 0, false);
-        }
-
-        // =============================
-        // 6. TOP (i = 0)
-        // =============================
-
-        for (int x = 0; x < H_PARTS; x++) {
-
-            Vec3d outerL = outer[x][0];
-            Vec3d outerR = outer[x + 1][0];
-            Vec3d innerR = inner[x + 1][0];
-            Vec3d innerL = inner[x][0];
-
-            float uStart = topU1 + (topU2 - topU1) * ((float) x / H_PARTS);
-            float uEnd = topU1 + (topU2 - topU1) * ((float) (x + 1) / H_PARTS);
-
-            renderCapeQuad(vertexConsumer, entry,
-                    outerL, outerR, innerR, innerL,
-                    uStart, topV1, uEnd, topV2,
-                    light, overlay, 0, 1, 0, false);
-        }
-
-        // =============================
-        // 7. BOTTOM (i = PARTS)
-        // =============================
-
-        for (int x = 0; x < H_PARTS; x++) {
-
-            Vec3d innerL = inner[x][PARTS];
-            Vec3d innerR = inner[x + 1][PARTS];
-            Vec3d outerR = outer[x + 1][PARTS];
-            Vec3d outerL = outer[x][PARTS];
-
-            float uStart = bottomU1 + (bottomU2 - bottomU1) * ((float) x / H_PARTS);
-            float uEnd = bottomU1 + (bottomU2 - bottomU1) * ((float) (x + 1) / H_PARTS);
-
-            renderCapeQuad(vertexConsumer, entry,
-                    innerL, innerR, outerR, outerL,
-                    uStart, bottomV1, uEnd, bottomV2,
-                    light, overlay, 0, -1, 0, false);
-        }
-    }
-
-    // Shift array left and insert new value at the start
-    private void updateSegmentValues(float value) {
-        // Shift all elements one position to the right (from end to start)
-        for (int i = segmentValues.length - 1; i > 0; i--) {
-            segmentValues[i] = segmentValues[i - 1];
-        }
-
-        // Insert the new value at index 0
-        segmentValues[0] = value;
-    }
-
-    private long lastUpdate = 0;
-
-    @Override
-    public void render(MatrixStack matrices, OrderedRenderCommandQueue queue, int light, PlayerEntityRenderState state,
-            float limbAngle, float limbDistance) {
-        if (state.invisible || !state.capeVisible
-                || state.skinTextures.cape() != null) {
-            return;
-        }
-
-        SaturnPlayer player = state.getData(SaturnRenderState.saturnDataKey);
-
-        if (player == null) {
-            return;
-        }
-
-        IdentifierRef customCape = Cloaks.getCurrentCloakTexture(player.cloak);
-        if (customCape == null
-                || this.hasCustomModelForLayer(state.equippedChestStack, LayerType.WINGS)) {
-            return;
-        }
-
-        int minBrightness = 7;
-        int blockLight = (light >> 4) & 0xF;
-        int skyLight = (light >> 20) & 0xF;
-        blockLight = Math.max(blockLight, minBrightness);
-        skyLight = Math.max(skyLight, minBrightness);
-        light = (skyLight << 20) | (blockLight << 4);
-
-        matrices.push();
-
-        matrices.translate(0.0f, 0.0f, 0.12f);
-
-        if (this.hasCustomModelForLayer(state.equippedChestStack, LayerType.HUMANOID)) {
-            matrices.translate(0.0F, -0.053125F, 0.06875F);
-        }
-
-        if (state.isInSneakingPose) {
-            matrices.translate(0, 0.16f, 0.0f);
-            matrices.multiply(RotationAxis.POSITIVE_X.rotationDegrees(29.0f));
-        }
-
-        long now = System.currentTimeMillis();
-        if (now - lastUpdate >= 20) {
-            float velX = Math.min(0.8f, state.field_53537 / 108.0f);
-            float rawVelY = state.field_53536;
-            float velY = (rawVelY > 3.4f ? rawVelY : rawVelY < -3.4f ? rawVelY : 0.0f) / 16;
-
-            float value = Math.max(0.0f, Math.min(2.0f, state.isSwimming ? 0.0f : velX + velY));
-
-            if (Config.cloakPhysics.value) {
-                updateSegmentValues(segmentValues[0] + (value - segmentValues[0]) * 0.3f);
-            } else {
-                Arrays.fill(segmentValues, segmentValues[0] + (value - segmentValues[0]) * 0.05f);
-            }
-            lastUpdate = now;
-        }
-
-        final int l = light;
-
-        horizontalCurve = MathHelper.clamp(state.field_53537 / 150.0f, -1.0f, 1.0f);
-
-        queue.submitCustom(matrices, ShaderUtils.getRenderLayer(customCape), (entry, vertexConsumer) -> {
-            renderCape(entry, vertexConsumer, state, l, OverlayTexture.DEFAULT_UV);
-        });
-
-        matrices.pop();
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/cosmetics/HatFeatureRenderer.java

@@ -1,51 +0,0 @@
-package org.saturnclient.impl.cosmetics;
-
-import org.joml.Quaternionf;
-import org.saturnclient.client.player.SaturnPlayer;
-import org.saturnclient.impl.cosmetics.obj.MtlLoader;
-import org.saturnclient.impl.cosmetics.obj.ObjModel;
-
-import net.minecraft.client.render.OverlayTexture;
-import net.minecraft.client.render.VertexConsumerProvider;
-import net.minecraft.client.render.command.OrderedRenderCommandQueue;
-import net.minecraft.client.render.entity.feature.FeatureRenderer;
-import net.minecraft.client.render.entity.feature.FeatureRendererContext;
-import net.minecraft.client.render.entity.model.PlayerEntityModel;
-import net.minecraft.client.render.entity.state.PlayerEntityRenderState;
-import net.minecraft.client.util.math.MatrixStack;
-import net.minecraft.client.model.ModelPart;
-
-public class HatFeatureRenderer extends FeatureRenderer<PlayerEntityRenderState, PlayerEntityModel> {
-    public HatFeatureRenderer(FeatureRendererContext<PlayerEntityRenderState, PlayerEntityModel> context) {
-        super(context);
-    }
-
-    // @Override
-    public void render(MatrixStack matrices, VertexConsumerProvider vertexConsumers, int light,
-            PlayerEntityRenderState state, float limbAngle, float limbDistance) {
-        if (state.displayName == null)
-            return;
-
-        SaturnPlayer player = SaturnPlayer.get(state.displayName.getString());
-
-        if (state.invisible || player == null || player.hat.isEmpty()) {
-            return;
-        }
-
-        matrices.push();
-
-        ModelPart head = this.getContextModel().head;
-        matrices.multiply(new Quaternionf().rotationZYX(head.roll, head.yaw, head.pitch));
-
-        ObjModel.cosmetic("hat", player.hat).render(MtlLoader.cosmetic(player.hat),
-                matrices, vertexConsumers, light,
-                OverlayTexture.DEFAULT_UV);
-
-        matrices.pop();
-    }
-
-    @Override
-    public void render(MatrixStack matrices, OrderedRenderCommandQueue queue, int light, PlayerEntityRenderState state,
-            float limbAngle, float limbDistance) {
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/cosmetics/obj/ObjModel.java

@@ -1,102 +0,0 @@
-package org.saturnclient.impl.cosmetics.obj;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Optional;
-
-import com.fasterxml.jackson.annotation.JsonFormat;
-import com.fasterxml.jackson.annotation.JsonProperty;
-import com.fasterxml.jackson.databind.ObjectMapper;
-
-import de.javagl.obj.Mtl;
-import de.javagl.obj.Obj;
-import net.minecraft.client.MinecraftClient;
-import net.minecraft.client.render.VertexConsumerProvider;
-import net.minecraft.client.util.math.MatrixStack;
-import net.minecraft.resource.Resource;
-import net.minecraft.resource.ResourceManager;
-import net.minecraft.util.Identifier;
-
-public class ObjModel {
-    private static final ObjectMapper MAPPER = new ObjectMapper();
-    public static final Map<Identifier, ObjModel> loadedObjModels = new HashMap<>();
-
-    public record Config(
-            @JsonProperty("translate") Vec3d transform,
-            @JsonProperty("scale") Vec3d scale,
-            @JsonProperty("rotation") Vec3d rotation) {
-
-        public Config {
-            transform = transform == null ? new Vec3d(0, 0, 0) : transform;
-            scale = scale == null ? new Vec3d(1, 1, 1) : scale;
-            rotation = rotation == null ? new Vec3d(0, 0, 0) : rotation;
-        }
-
-        @JsonFormat(shape = JsonFormat.Shape.ARRAY)
-        public record Vec3d(float x, float y, float z) {
-        }
-    }
-
-    Obj obj;
-    Config config;
-
-    public static ObjModel cosmetic(String cosmeticKind, String id) {
-        return of(Identifier.of("saturnclient", "models/cosmetic/" + cosmeticKind + "/" + id.split("_")[0] + "/model"));
-    }
-
-    public static ObjModel of(Identifier obj) {
-        if (loadedObjModels.containsKey(obj))
-            return loadedObjModels.get(obj);
-
-        ObjModel o = new ObjModel(obj);
-        loadedObjModels.put(obj, o);
-        return o;
-    }
-
-    ObjModel(Identifier identifier) {
-        Identifier objId = Identifier.of(identifier.getNamespace(), identifier.getPath() + ".obj");
-        Identifier jsonId = Identifier.of(identifier.getNamespace(), identifier.getPath() + ".json");
-
-        try {
-            this.obj = ObjRenderer.loadObj(objId);
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-
-        // Try loading JSON config if it exists
-        ResourceManager resourceManager = MinecraftClient.getInstance().getResourceManager();
-        Optional<Resource> resource = resourceManager.getResource(jsonId);
-
-        if (resource.isPresent()) {
-            try (InputStream stream = resource.get().getInputStream()) {
-                this.config = MAPPER.readValue(stream, Config.class);
-            } catch (Exception e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    public void render(Map<String, Mtl> mtlMap, MatrixStack matrices, VertexConsumerProvider vertexConsumers, int light,
-            int overlay) {
-        matrices.push();
-
-        matrices.multiply(net.minecraft.util.math.RotationAxis.POSITIVE_X.rotationDegrees(180.0f));
-        matrices.multiply(net.minecraft.util.math.RotationAxis.POSITIVE_Y.rotationDegrees(180.0f));
-
-        if (this.config != null) {
-            matrices.translate(config.transform.x, config.transform.y, config.transform.z);
-
-            matrices.scale(config.scale.x, config.scale.y, config.scale.z);
-
-            matrices.multiply(net.minecraft.util.math.RotationAxis.POSITIVE_X.rotationDegrees(config.rotation.x));
-            matrices.multiply(net.minecraft.util.math.RotationAxis.POSITIVE_Y.rotationDegrees(config.rotation.y));
-            matrices.multiply(net.minecraft.util.math.RotationAxis.POSITIVE_Z.rotationDegrees(config.rotation.z));
-        }
-
-        ObjRenderer.renderObj(this.obj, mtlMap, matrices, vertexConsumers, light, overlay);
-
-        matrices.pop();
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/cosmetics/obj/ObjRenderer.java

@@ -1,112 +0,0 @@
-package org.saturnclient.impl.cosmetics.obj;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.Map;
-
-import org.saturnclient.common.ref.asset.IdentifierRef;
-import org.saturnclient.impl.cosmetics.utils.ShaderUtils;
-
-import de.javagl.obj.*;
-
-import net.minecraft.client.MinecraftClient;
-import net.minecraft.client.render.VertexConsumer;
-import net.minecraft.client.render.VertexConsumerProvider;
-import net.minecraft.client.util.math.MatrixStack;
-import net.minecraft.util.Identifier;
-
-public class ObjRenderer {
-
-    public static Obj loadObj(Identifier objId) throws IOException {
-        try (InputStream is = MinecraftClient.getInstance().getResourceManager()
-                .getResource(objId).get().getInputStream()) {
-            return ObjReader.read(is);
-        }
-    }
-
-    public static void renderObj(Obj obj, Map<String, Mtl> mtlMap, MatrixStack matrices,
-            VertexConsumerProvider vertexConsumers, int light, int overlay) {
-        MatrixStack.Entry entry = matrices.peek();
-
-        Map<String, Obj> materialGroups = ObjSplitting.splitByMaterialGroups(obj);
-
-        for (Map.Entry<String, Obj> group : materialGroups.entrySet()) {
-            String materialName = group.getKey();
-            Obj groupObj = group.getValue();
-
-            Mtl mtl = mtlMap != null ? mtlMap.get(materialName) : null;
-
-            // Resolve texture identifier using same logic as ObjUnbakedModelModel
-            IdentifierRef texture = IdentifierRef.ofVanilla("textures/misc/white.png");
-
-            if (mtl != null) {
-                String mapKd = mtl.getMapKd();
-                if (mapKd != null) {
-                    if (!mapKd.startsWith("#")) {
-                        texture = IdentifierRef.of(mapKd);
-                    }
-                }
-            }
-
-            // Diffuse color (Kd)
-            float r = 1f, g = 1f, b = 1f;
-            if (mtl != null) {
-                FloatTuple kd = mtl.getKd();
-                if (kd != null) {
-                    r = kd.getX();
-                    g = kd.getY();
-                    b = kd.getZ();
-                }
-            }
-
-            VertexConsumer consumer = vertexConsumers.getBuffer(ShaderUtils.getRenderLayer(texture));
-
-            int faces = groupObj.getNumFaces();
-            final float fr = r, fg = g, fb = b;
-
-            for (int f = 0; f < faces; f++) {
-                ObjFace face = groupObj.getFace(f);
-                int verts = face.getNumVertices();
-
-                // Your original winding order logic, untouched
-                for (int i = verts - 1; i >= 0; i--) {
-                    writeVertex(groupObj, face, i, consumer, entry, light, overlay, fr, fg, fb);
-                }
-            }
-        }
-    }
-
-    private static void writeVertex(Obj obj, ObjFace face, int index, VertexConsumer consumer,
-            MatrixStack.Entry matrix, int light, int overlay,
-            float r, float g, float b) {
-
-        FloatTuple pos = obj.getVertex(face.getVertexIndex(index));
-        float x = pos.getX();
-        float y = pos.getY();
-        float z = pos.getZ();
-
-        float nx = 0f, ny = 1f, nz = 0f;
-        int normalIndex = face.getNormalIndex(index);
-        if (normalIndex >= 0) {
-            FloatTuple n = obj.getNormal(normalIndex);
-            nx = n.getX();
-            ny = n.getY();
-            nz = n.getZ();
-        }
-
-        float u = 0f, v = 0f;
-        int texIndex = face.getTexCoordIndex(index);
-        if (texIndex >= 0) {
-            FloatTuple tc = obj.getTexCoord(texIndex);
-            u = tc.getX();
-            v = 1f - tc.getY(); // Flip V: OBJ bottom-left origin -> Minecraft top-left
-        }
-
-        consumer.vertex(matrix, x, y, z)
-                .color(r, g, b, 1f)
-                .texture(u, v)
-                .overlay(overlay)
-                .light(light)
-                .normal(matrix, nx, ny, nz);
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/cosmetics/utils/IdentifierUtils.java

@@ -1,71 +0,0 @@
-package org.saturnclient.impl.cosmetics.utils;
-
-import org.saturnclient.common.ref.asset.IdentifierRef;
-import org.saturnclient.saturnclient.SaturnClient;
-
-import net.minecraft.client.texture.NativeImage;
-import net.minecraft.client.texture.NativeImageBackedTexture;
-import net.minecraft.util.Identifier;
-
-import java.awt.image.BufferedImage;
-import java.awt.image.DataBufferInt;
-import java.util.Map;
-
-public class IdentifierUtils {
-
-    public static void registerBufferedImageTextureFast(IdentifierRef identifierRef, BufferedImage bufferedImage) {
-        try {
-            Identifier identifier = (Identifier) (Object) identifierRef;
-
-            int width = bufferedImage.getWidth();
-            int height = bufferedImage.getHeight();
-
-            NativeImage nativeImage = new NativeImage(NativeImage.Format.RGBA, width, height, false);
-
-            if (bufferedImage.getType() == BufferedImage.TYPE_INT_ARGB) {
-                int[] pixels = ((DataBufferInt) bufferedImage.getRaster().getDataBuffer()).getData();
-
-                int index = 0;
-                for (int y = 0; y < height; y++) {
-                    for (int x = 0; x < width; x++) {
-                        nativeImage.setColorArgb(x, y, pixels[index++]);
-                    }
-                }
-
-            } else {
-
-                for (int y = 0; y < height; y++) {
-                    for (int x = 0; x < width; x++) {
-                        nativeImage.setColorArgb(x, y, bufferedImage.getRGB(x, y));
-                    }
-                }
-
-            }
-
-            SaturnClient.client.execute(() -> {
-                NativeImageBackedTexture texture = new NativeImageBackedTexture(
-                        () -> identifier.toString(),
-                        nativeImage);
-
-                SaturnClient.client.getTextureManager().registerTexture(identifier, texture);
-            });
-
-        } catch (Exception e) {
-            SaturnClient.LOGGER.error("Failed to register texture: {}", identifierRef, e);
-        }
-    }
-
-    public static void registerBufferedImageTexturesBulk(Map<IdentifierRef, BufferedImage> textures) {
-
-        long start = System.currentTimeMillis();
-
-        textures.forEach(IdentifierUtils::registerBufferedImageTextureFast);
-
-        long end = System.currentTimeMillis();
-
-        SaturnClient.LOGGER.info(
-                "Registered {} textures in {}ms",
-                textures.size(),
-                (end - start));
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/cosmetics/utils/ShaderUtils.java

@@ -1,39 +0,0 @@
-package org.saturnclient.impl.cosmetics.utils;
-
-import org.saturnclient.common.ref.asset.IdentifierRef;
-import org.saturnclient.cosmetics.utils.GifUtils;
-
-import com.mojang.blaze3d.pipeline.RenderPipeline;
-
-import net.minecraft.client.gl.RenderPipelines;
-import net.minecraft.client.render.RenderLayer;
-import net.minecraft.client.render.RenderPhase.Textures;
-import net.minecraft.client.render.block.entity.EndPortalBlockEntityRenderer;
-import net.minecraft.util.Identifier;
-
-public class ShaderUtils {
-    public static final RenderPipeline END_GATEWAY_PIPELINE = RenderPipelines.register(
-            RenderPipeline.builder(new RenderPipeline.Snippet[] { RenderPipelines.RENDERTYPE_END_PORTAL_SNIPPET })
-                    .withLocation("pipeline/end_gateway")
-                    .withShaderDefine("PORTAL_LAYERS", 16)
-                    .withCull(false)
-                    .build());
-
-    public static final RenderLayer END_GATEWAY = RenderLayer.of("end_gateway", 1536, false, false,
-            END_GATEWAY_PIPELINE,
-            RenderLayer.MultiPhaseParameters.builder()
-                    .texture(Textures.create().add(EndPortalBlockEntityRenderer.SKY_TEXTURE, false)
-                            .add(EndPortalBlockEntityRenderer.PORTAL_TEXTURE, false).build())
-                    .build(false));
-
-    public static RenderLayer getRenderLayer(IdentifierRef texture) {
-        String path = texture.toString();
-        if (path.endsWith(".gif")) {
-            return RenderLayer.getEntityAlpha((Identifier) (Object) GifUtils.get(texture));
-        } else if (path.endsWith("end.png")) {
-            return END_GATEWAY;
-        } else {
-            return RenderLayer.getEntityAlpha((Identifier) (Object) texture);
-        }
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/features/mixins/entity/CameraMixin.java

@@ -1,46 +0,0 @@
-package org.saturnclient.impl.features.mixins.entity;
-
-import org.saturnclient.impl.features.entity.CameraOverriddenEntity;
-import org.saturnclient.mod.mods.FreelookMod;
-import org.saturnclient.saturnclient.SaturnClient;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Shadow;
-import org.spongepowered.asm.mixin.Unique;
-import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.Inject;
-import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
-
-import net.minecraft.client.network.ClientPlayerEntity;
-import net.minecraft.client.render.Camera;
-import net.minecraft.entity.Entity;
-import net.minecraft.world.BlockView;
-
-@Mixin(Camera.class)
-public abstract class CameraMixin {
-    @Unique
-    boolean firstTime = true;
-
-    @Shadow
-    protected abstract void setRotation(float yaw, float pitch);
-
-    @Inject(method = "update", at = @At(value = "INVOKE", target = "Lnet/minecraft/client/render/Camera;setRotation(FF)V", ordinal = 1, shift = At.Shift.AFTER))
-    public void lockRotation(BlockView focusedBlock, Entity cameraEntity, boolean isThirdPerson, boolean isFrontFacing,
-            float tickDelta, CallbackInfo ci) {
-        if (FreelookMod.isFreeLooking() && cameraEntity instanceof ClientPlayerEntity) {
-            CameraOverriddenEntity cameraOverriddenEntity = (CameraOverriddenEntity) cameraEntity;
-
-            if (firstTime && SaturnClient.client.player != null) {
-                cameraOverriddenEntity.freelook$setCameraPitch(SaturnClient.client.player.getPitch());
-                cameraOverriddenEntity.freelook$setCameraYaw(SaturnClient.client.player.getYaw());
-                firstTime = false;
-            }
-            this.setRotation(cameraOverriddenEntity.freelook$getCameraYaw(),
-                    cameraOverriddenEntity.freelook$getCameraPitch());
-
-        }
-        if (!FreelookMod.isFreeLooking() && cameraEntity instanceof ClientPlayerEntity) {
-            firstTime = true;
-        }
-    }
-
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/features/mixins/render/BackgroundRendererMixin.java

@@ -1,21 +0,0 @@
-package org.saturnclient.impl.features.mixins.render;
-
-import net.minecraft.client.render.fog.FogRenderer;
-
-import org.saturnclient.mod.mods.NoFogMod;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.ModifyVariable;
-
-@Mixin(FogRenderer.class)
-public class BackgroundRendererMixin {
-    // fog
-    @ModifyVariable(method = "applyFog", at = @At("HEAD"), ordinal = 0, argsOnly = true)
-    private static float modifyFogStart(float viewDistance) {
-        if (NoFogMod.isActive()) {
-            return viewDistance * 2.0f;
-        }
-
-        return viewDistance;
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/features/mixins/render/GameRendererMixin.java

@@ -1,37 +0,0 @@
-package org.saturnclient.impl.features.mixins.render;
-
-import net.minecraft.client.render.GameRenderer;
-
-import org.saturnclient.mod.mods.ZoomMod;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.Inject;
-import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
-
-/**
- * Overrides the game's field-of-view when {@link ZoomMod} is active.
- *
- * The old code checked both {@code Zoom.isZooming} and
- * {@code Zoom.shouldZoom()} separately. The refactored
- * {@link ZoomMod#shouldZoom()} already ORs both conditions
- * ({@code enabled.value && isZooming}), so only one check is needed.
- *
- * No {@link org.saturnclient.common.module.ModProvider} is required
- * here because zooming is a pure render-time override with no per-tick
- * engine queries.
- */
-@Mixin(GameRenderer.class)
-public class GameRendererMixin {
-
-    /**
-     * After the vanilla FOV has been computed, divide it by the zoom
-     * level to produce the narrowed field-of-view.
-     */
-    @Inject(method = "getFov", at = @At("RETURN"), cancellable = true)
-    private void onGetFov(CallbackInfoReturnable<Float> cir) {
-        if (ZoomMod.shouldZoom()) {
-            float zoomedFov = cir.getReturnValue() / ZoomMod.getZoomLevel();
-            cir.setReturnValue(zoomedFov);
-        }
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/features/mixins/render/LivingEntityRenderStateMixin.java

@@ -1,59 +0,0 @@
-package org.saturnclient.impl.features.mixins.render;
-
-import net.minecraft.client.render.entity.state.LivingEntityRenderState;
-
-import org.saturnclient.common.feature.EntityFeature;
-import org.saturnclient.impl.features.entity.HealthRenderState;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Unique;
-
-/**
- * Implements {@link HealthRenderState} on
- * {@link LivingEntityRenderState}, injecting health and entity-type
- * storage into every living entity's render-state snapshot.
- *
- * Previously imported {@code NametagsInterface.EntityType}; the enum
- * now lives in {@link EntityFeature.EntityType} which is the single
- * canonical definition shared by the mixin layer and the feature layer.
- *
- * The stored values are written by
- * {@link LivingEntityRendererMixin#saturn$captureHealth} each time a
- * render state is extracted from a live entity, and read by
- * {@link NametagsMixin} at render time.
- */
-@Mixin(LivingEntityRenderState.class)
-public class LivingEntityRenderStateMixin implements HealthRenderState {
-
-    @Unique
-    private float saturn$health = 0f;
-    @Unique
-    private float saturn$maxHealth = 1f;
-    @Unique
-    private EntityFeature.EntityType saturn$entityType = EntityFeature.EntityType.OTHER;
-
-    @Override
-    public float saturn$getHealth() {
-        return saturn$health;
-    }
-
-    @Override
-    public float saturn$getMaxHealth() {
-        return saturn$maxHealth;
-    }
-
-    @Override
-    public void saturn$setHealth(float health, float maxHealth) {
-        this.saturn$health = health;
-        this.saturn$maxHealth = maxHealth;
-    }
-
-    @Override
-    public EntityFeature.EntityType saturn$getEntityType() {
-        return saturn$entityType;
-    }
-
-    @Override
-    public void saturn$setEntityType(EntityFeature.EntityType type) {
-        saturn$entityType = type;
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/features/mixins/render/LivingEntityRendererMixin.java

@@ -1,51 +0,0 @@
-package org.saturnclient.impl.features.mixins.render;
-
-import net.minecraft.client.render.entity.LivingEntityRenderer;
-import net.minecraft.client.render.entity.state.LivingEntityRenderState;
-import net.minecraft.entity.LivingEntity;
-import net.minecraft.entity.mob.HostileEntity;
-import net.minecraft.entity.passive.PassiveEntity;
-import net.minecraft.entity.player.PlayerEntity;
-
-import org.saturnclient.common.feature.EntityFeature;
-import org.saturnclient.impl.features.entity.HealthRenderState;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.Inject;
-import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
-
-/**
- * Captures each living entity's health and type into the render state
- * during {@code updateRenderState}, so that nametag rendering can read
- * them without touching the live entity again.
- *
- * Previously imported {@code NametagsInterface.EntityType}; now uses
- * {@link EntityFeature.EntityType} — the canonical enum shared across
- * the whole module system.
- *
- * The injection target and strategy are unchanged from the original.
- */
-@Mixin(LivingEntityRenderer.class)
-public abstract class LivingEntityRendererMixin<T extends LivingEntity, S extends LivingEntityRenderState> {
-
-    @Inject(method = "updateRenderState", at = @At("TAIL"))
-    private void saturn$captureHealth(T entity, S state, float tickDelta, CallbackInfo ci) {
-        if (!(state instanceof HealthRenderState hrs))
-            return;
-
-        hrs.saturn$setHealth(entity.getHealth(), entity.getMaxHealth());
-
-        // Classify entity type for the nametag feature's filtering logic
-        EntityFeature.EntityType type;
-        if (entity instanceof PlayerEntity)
-            type = EntityFeature.EntityType.PLAYER;
-        else if (entity instanceof HostileEntity)
-            type = EntityFeature.EntityType.HOSTILE;
-        else if (entity instanceof PassiveEntity)
-            type = EntityFeature.EntityType.PASSIVE;
-        else
-            type = EntityFeature.EntityType.OTHER;
-
-        hrs.saturn$setEntityType(type);
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/features/world/WorldFeatureImpl.java

@@ -1,36 +0,0 @@
-package org.saturnclient.impl.features.world;
-
-import org.saturnclient.common.feature.WorldFeature;
-
-import net.minecraft.client.MinecraftClient;
-
-/**
- * Fabric implementation of {@link WorldFeature}.
- *
- * Reads the client world's time directly from {@link MinecraftClient}.
- * Returns safe defaults when no world is loaded.
- */
-public class WorldFeatureImpl implements WorldFeature {
-
-    private final MinecraftClient mc;
-
-    public WorldFeatureImpl(MinecraftClient mc) {
-        this.mc = mc;
-    }
-
-    @Override
-    public boolean hasWorld() {
-        return mc.world != null;
-    }
-
-    /**
-     * Returns the total world age in ticks, or {@code 0} when no world
-     * is loaded. Used by {@link TpsFeature#onTimePacket} (which is
-     * called from the mixin and stores its own copy) and by
-     * {@link DayCounterFeature} for the day count.
-     */
-    @Override
-    public long getWorldAge() {
-        return hasWorld() ? mc.world.getTime() : 0L;
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/mixins/MinecraftClientMixin.java

@@ -1,162 +0,0 @@
-package org.saturnclient.impl.mixins;
-
-import java.io.File;
-import java.io.InputStream;
-import java.util.UUID;
-
-import org.jetbrains.annotations.Nullable;
-import org.saturnclient.common.ref.asset.IdentifierRef;
-import org.saturnclient.common.ref.game.MinecraftClientRef;
-import org.saturnclient.common.ref.render.WindowRef;
-import org.saturnclient.impl.ui.SaturnScreenFabric;
-import org.saturnclient.ui.SaturnScreen;
-import org.saturnclient.ui.screens.TitleMenu;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Shadow;
-
-import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents;
-import net.minecraft.client.MinecraftClient;
-import net.minecraft.client.gui.screen.Screen;
-import net.minecraft.client.gui.screen.multiplayer.MultiplayerScreen;
-import net.minecraft.client.gui.screen.option.OptionsScreen;
-import net.minecraft.client.gui.screen.world.SelectWorldScreen;
-import net.minecraft.client.option.GameOptions;
-import net.minecraft.client.session.Session;
-import net.minecraft.client.util.Window;
-import net.minecraft.resource.ReloadableResourceManagerImpl;
-import net.minecraft.util.Identifier;
-
-@Mixin(MinecraftClient.class)
-public abstract class MinecraftClientMixin implements MinecraftClientRef {
-    @Shadow
-    public File runDirectory;
-
-    @Shadow
-    private Window window;
-
-    @Shadow
-    private ReloadableResourceManagerImpl resourceManager;
-
-    @Shadow
-    public GameOptions options;
-
-    @Shadow
-    private Session session;
-
-    @Shadow
-    public abstract void setScreen(@Nullable Screen screen);
-
-    @Shadow
-    @Override
-    public abstract void scheduleStop();
-
-    @Override
-    public File getRunDirectory() {
-        return runDirectory;
-    }
-
-    @Override
-    public InputStream getResource(IdentifierRef identifier) {
-        try {
-            return resourceManager.getResource((Identifier) (Object) identifier).get().getInputStream();
-        } catch (Exception e) {
-            return null;
-        }
-    }
-
-    @Override
-    public WindowRef getWindow() {
-        return (WindowRef) (Object) this.window;
-    }
-
-    @Override
-    public void setScreen(SaturnScreen screen) {
-        this.setScreen(new SaturnScreenFabric(screen));
-    }
-
-    @Override
-    public void setScreen(MinecraftScreen screen) {
-        SaturnScreenFabric exitTarget = new SaturnScreenFabric(new TitleMenu());
-
-        switch (screen) {
-            case SelectWorld:
-                this.setScreen(new SelectWorldScreen(exitTarget));
-                break;
-
-            case Multiplayer:
-                this.setScreen(new MultiplayerScreen(exitTarget));
-                break;
-
-            case Options:
-                this.setScreen(new OptionsScreen(exitTarget, this.options));
-                break;
-        }
-    }
-
-    @Override
-    public String getAccessToken() {
-        if (session == null) {
-            return null;
-        }
-
-        return this.session.getAccessToken();
-    }
-
-    @Override
-    public UUID getUuid() {
-        if (session == null) {
-            return null;
-        }
-        return this.session.getUuidOrNull();
-    }
-
-    @Override
-    public String getUsername() {
-        if (session == null) {
-            return null;
-        }
-        return this.session.getUsername();
-    }
-
-    @Override
-    public void onClientStopping(Runnable handler) {
-        ClientLifecycleEvents.CLIENT_STOPPING.register(_o -> handler.run());
-    }
-
-    @Override
-    public void executeOnThread(Runnable runnable) {
-        ((java.util.concurrent.Executor) (Object) this).execute(runnable);
-    }
-
-    @Override
-    @SuppressWarnings("resource")
-    public String getPlayerListEntry(UUID uuid) {
-        var client = (MinecraftClient) (Object) this;
-        var handler = client.getNetworkHandler();
-
-        if (handler == null)
-            return null;
-
-        var entry = handler.getPlayerListEntry(uuid);
-        if (entry == null)
-            return null;
-
-        return entry.getProfile().name();
-    }
-
-    @Override
-    @SuppressWarnings("resource")
-    public UUID getPlayerListEntryUUID(String name) {
-        var client = (MinecraftClient) (Object) this;
-        var handler = client.getNetworkHandler();
-
-        if (handler == null)
-            return null;
-
-        var entry = handler.getPlayerListEntry(name);
-        if (entry == null)
-            return null;
-
-        return entry.getProfile().id();
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/mixins/TextMixin.java

@@ -1,25 +0,0 @@
-package org.saturnclient.impl.mixins;
-
-import org.saturnclient.common.ref.asset.IdentifierRef;
-import org.saturnclient.common.ref.render.TextRef;
-import org.saturnclient.saturnclient.SaturnClient;
-import org.spongepowered.asm.mixin.Mixin;
-
-import net.minecraft.text.Style;
-import net.minecraft.text.Text;
-import net.minecraft.text.StyleSpriteSource.Font;
-import net.minecraft.util.Identifier;
-
-@Mixin(Text.class)
-public interface TextMixin extends TextRef {
-
-    @Override
-    public default TextRef withFont(IdentifierRef font) {
-        return (TextRef) (((Text) this).copy().setStyle(Style.EMPTY.withFont(new Font((Identifier) (Object) font))));
-    }
-
-    @Override
-    public default int getWidth() {
-        return SaturnClient.client.textRenderer.getWidth((Text) this);
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/provider/RefConstructorImpl.java

@@ -1,25 +0,0 @@
-package org.saturnclient.impl.provider;
-
-import org.saturnclient.common.provider.RefConstructorProvider;
-import org.saturnclient.common.ref.asset.IdentifierRef;
-import org.saturnclient.common.ref.render.TextRef;
-
-import net.minecraft.text.Text;
-import net.minecraft.util.Identifier;
-
-public class RefConstructorImpl implements RefConstructorProvider {
-    @Override
-    public IdentifierRef identifier(String fullPath) {
-        return (IdentifierRef) (Object) Identifier.of(fullPath);
-    }
-
-    @Override
-    public IdentifierRef identifier(String namespace, String path) {
-        return (IdentifierRef) (Object) Identifier.of(namespace, path);
-    }
-
-    @Override
-    public TextRef text(String text) {
-        return (TextRef) Text.literal(text);
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/provider/SaturnProviderImpl.java

@@ -1,88 +0,0 @@
-package org.saturnclient.impl.provider;
-
-import java.awt.image.BufferedImage;
-import java.util.UUID;
-
-import net.fabricmc.loader.api.FabricLoader;
-import net.minecraft.client.MinecraftClient;
-import net.minecraft.client.toast.SystemToast;
-import net.minecraft.text.Text;
-
-import org.saturnclient.common.provider.SaturnProvider;
-import org.saturnclient.common.ref.asset.IdentifierRef;
-import org.saturnclient.common.ref.game.MinecraftClientRef;
-import org.saturnclient.impl.cosmetics.utils.IdentifierUtils;
-import org.saturnclient.saturnclient.SaturnClient;
-
-public class SaturnProviderImpl implements SaturnProvider {
-    @Override
-    public MinecraftClientRef getClient() {
-        return (MinecraftClientRef) SaturnClient.client;
-    }
-
-    @Override
-    public void playEmote(UUID fromPlayerUuid, String emoteIdOrNull) {
-        // if (SaturnClient.client == null || SaturnClient.client.world == null) {
-        //     return;
-        // }
-
-        // for (AbstractClientPlayerEntity player : SaturnClient.client.world.getPlayers()) {
-        //     if (!player.getUuid().equals(fromPlayerUuid)) {
-        //         continue;
-        //     }
-
-        //     AnimationStack animationStack = PlayerAnimationAccess.getPlayerAnimLayer(player);
-
-        //     if (emoteIdOrNull != null && !emoteIdOrNull.isEmpty()) {
-        //         if (animationStack.isActive() && animationStack.getPriority() == 1000) {
-        //             animationStack.removeLayer(1000);
-        //         }
-        //         animationStack.addAnimLayer(1000,
-        //                 PlayerAnimationRegistry
-        //                         .getAnimation(Identifier.of("saturnclient", emoteIdOrNull))
-        //                         .playAnimation());
-        //     } else {
-        //         animationStack.removeLayer(1000);
-        //     }
-
-        //     break;
-        // }
-    }
-
-    @Override
-    public void logInfo(String message) {
-        SaturnClient.LOGGER.info(message);
-    }
-
-    @Override
-    public void logError(String message) {
-        SaturnClient.LOGGER.error(message);
-    }
-
-    @Override
-    public void logError(String message, Throwable throwable) {
-        SaturnClient.LOGGER.error(message, throwable);
-    }
-
-    /** Shown longer than the vanilla default, since these ask the player to act. */
-    private static final SystemToast.Type WARNING_TOAST = new SystemToast.Type(15_000L);
-
-    @Override
-    public String getModVersion() {
-        return FabricLoader.getInstance().getModContainer(SaturnClient.MOD_ID)
-                .map(mod -> mod.getMetadata().getVersion().getFriendlyString())
-                .orElse("unknown");
-    }
-
-    @Override
-    public void showWarning(String title, String message) {
-        MinecraftClient client = MinecraftClient.getInstance();
-        client.execute(() -> client.getToastManager().add(
-                SystemToast.create(client, WARNING_TOAST, Text.literal(title), Text.literal(message))));
-    }
-
-    @Override
-    public void registerBufferedImageTexture(IdentifierRef i, BufferedImage bi) {
-        IdentifierUtils.registerBufferedImageTextureFast(i, bi);
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/ui/EntityDrawerImpl.java

@@ -1,70 +0,0 @@
-package org.saturnclient.impl.ui;
-
-import org.jetbrains.annotations.Nullable;
-import org.joml.Quaternionf;
-import org.joml.Vector3f;
-import org.saturnclient.saturnclient.SaturnClient;
-import org.saturnclient.ui.ElementContext;
-import org.saturnclient.ui.RenderScope;
-import org.saturnclient.ui.components.SkinPreview.EntityDrawer;
-
-import net.minecraft.client.render.entity.EntityRenderManager;
-import net.minecraft.client.render.entity.EntityRenderer;
-import net.minecraft.client.render.entity.state.EntityRenderState;
-import net.minecraft.entity.LivingEntity;
-
-public class EntityDrawerImpl implements EntityDrawer {
-    @Override
-    public void render(RenderScope renderScope, boolean negativeAngle, float angle, float scale, ElementContext ctx) {
-        LivingEntity entity = SaturnClient.client.player;
-
-        if (entity != null) {
-            drawEntity(renderScope, 0, 0, 75, 78, 30, 0.0625F, ctx.mouseX / scale, ctx.mouseY / scale,
-                    SaturnClient.client.player);
-        }
-    }
-
-    public static void drawEntity(RenderScope renderScope, int x1, int y1, int x2, int y2, int size, float scale,
-            float mouseX, float mouseY, LivingEntity entity) {
-        float f = (float) (x1 + x2) / 2.0F;
-        float g = (float) (y1 + y2) / 2.0F;
-        renderScope.enableScissor(x1, y1, x2, y2);
-        float h = (float) Math.atan((double) ((f - mouseX) / 40.0F));
-        float i = (float) Math.atan((double) ((g - mouseY) / 40.0F));
-        Quaternionf quaternionf = (new Quaternionf()).rotateZ((float) Math.PI);
-        Quaternionf quaternionf2 = (new Quaternionf()).rotateX(i * 20.0F * ((float) Math.PI / 180F));
-        quaternionf.mul(quaternionf2);
-        float j = entity.bodyYaw;
-        float k = entity.getYaw();
-        float l = entity.getPitch();
-        float m = entity.lastHeadYaw;
-        float n = entity.headYaw;
-        entity.bodyYaw = 180.0F + h * 20.0F;
-        entity.setYaw(180.0F + h * 40.0F);
-        entity.setPitch(-i * 20.0F);
-        entity.headYaw = entity.getYaw();
-        entity.lastHeadYaw = entity.getYaw();
-        float o = entity.getScale();
-        Vector3f vector3f = new Vector3f(0.0F, entity.getHeight() / 2.0F + scale * o, 0.0F);
-        float p = (float) size / o;
-        drawEntity(renderScope, x1, y1, x2, y2, p, vector3f, quaternionf, quaternionf2, entity);
-        entity.bodyYaw = j;
-        entity.setYaw(k);
-        entity.setPitch(l);
-        entity.lastHeadYaw = m;
-        entity.headYaw = n;
-        renderScope.disableScissor();
-    }
-
-    public static void drawEntity(RenderScope renderScope, int x1, int y1, int x2, int y2, float scale,
-            Vector3f translation, Quaternionf rotation, @Nullable Quaternionf overrideCameraAngle,
-            LivingEntity entity) {
-        EntityRenderManager entityRenderDispatcher = SaturnClient.client.getEntityRenderDispatcher();
-        EntityRenderer<? super LivingEntity, ?> entityRenderer = entityRenderDispatcher.getRenderer(entity);
-        EntityRenderState entityRenderState = entityRenderer.getAndUpdateRenderState(entity, 1.0F);
-        entityRenderState.hitbox = null;
-
-        if (renderScope instanceof RenderScopeImpl i)
-            i.addEntity(entityRenderState, scale, translation, rotation, overrideCameraAngle, x1, y1, x2, y2);
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/ui/RenderScopeImpl.java

@@ -1,347 +0,0 @@
-package org.saturnclient.impl.ui;
-
-import java.util.ArrayDeque;
-import java.util.Deque;
-import java.util.Objects;
-
-import org.jetbrains.annotations.Nullable;
-import org.joml.Matrix3x2f;
-import org.joml.Matrix3x2fStack;
-import org.joml.Quaternionf;
-import org.joml.Vector3f;
-
-import com.mojang.blaze3d.textures.GpuTextureView;
-
-import org.saturnclient.common.ref.asset.IdentifierRef;
-import org.saturnclient.common.ref.asset.SpriteRef;
-import org.saturnclient.common.ref.game.ItemStackRef;
-import org.saturnclient.common.ref.render.MatrixStackRef;
-import org.saturnclient.impl.ref.Matrix3x2fStackRef;
-import org.saturnclient.saturnclient.SaturnClient;
-import org.saturnclient.saturnclient.mixin.DrawContextAccessor;
-import org.saturnclient.ui.RenderScope;
-import org.saturnclient.ui.resources.Fonts;
-import org.saturnclient.ui.resources.SvgTexture;
-
-import net.minecraft.client.gl.RenderPipelines;
-import net.minecraft.client.gui.DrawContext;
-import net.minecraft.client.gui.ScreenRect;
-import net.minecraft.client.gui.render.state.ColoredQuadGuiElementRenderState;
-import net.minecraft.client.gui.render.state.GuiRenderState;
-import net.minecraft.client.gui.render.state.ItemGuiElementRenderState;
-import net.minecraft.client.gui.render.state.TextGuiElementRenderState;
-import net.minecraft.client.gui.render.state.TexturedQuadGuiElementRenderState;
-import net.minecraft.client.gui.render.state.special.EntityGuiElementRenderState;
-import net.minecraft.client.render.entity.state.EntityRenderState;
-import net.minecraft.client.render.item.KeyedItemRenderState;
-import net.minecraft.client.texture.Sprite;
-import net.minecraft.client.texture.TextureSetup;
-import net.minecraft.entity.LivingEntity;
-import net.minecraft.item.ItemDisplayContext;
-import net.minecraft.item.ItemStack;
-import net.minecraft.text.Text;
-import net.minecraft.util.Identifier;
-import net.minecraft.util.crash.CrashException;
-import net.minecraft.util.crash.CrashReport;
-import net.minecraft.util.crash.CrashReportSection;
-import net.minecraft.world.World;
-
-public class RenderScopeImpl implements RenderScope {
-
-    public final Matrix3x2fStackRef matrices;
-    public final GuiRenderState state;
-
-    private ScissorStack scissorStack;
-    private int opacity = 0xFF << 24;
-
-    public RenderScopeImpl(DrawContext context) {
-        this(context.getMatrices(), ((DrawContextAccessor) (Object) context).getState());
-    }
-
-    public RenderScopeImpl(Matrix3x2fStack matrices, GuiRenderState state) {
-        this.matrices = new Matrix3x2fStackRef(matrices);
-        this.state = state;
-        this.scissorStack = new ScissorStack();
-    }
-
-    @Override
-    public MatrixStackRef getMatrixStack() {
-        return matrices;
-    }
-
-    @Override
-    public void setOpacity(float alpha) {
-        this.opacity = ((int) (alpha * 255)) << 24;
-    }
-
-    @Override
-    public int getColor(int color) {
-        int originalAlpha = (color >>> 24) & 0xFF;
-        int newAlpha = (opacity >>> 24) & 0xFF;
-        int mixedAlpha = (originalAlpha * newAlpha) / 255;
-        return (mixedAlpha << 24) | (color & 0x00FFFFFF);
-    }
-
-    @Override
-    public void fill(int x1, int y1, int x2, int y2, int color) {
-        this.state.addSimpleElement(
-                new ColoredQuadGuiElementRenderState(
-                        RenderPipelines.GUI,
-                        TextureSetup.empty(),
-                        new Matrix3x2f(this.matrices.stack),
-                        x1, y1, x2, y2, color, color,
-                        this.scissorStack.peekLast()));
-    }
-
-    @Override
-    public void drawRectangle(int x, int y, int width, int height, int color) {
-        if (color == 0)
-            return;
-        color = getColor(color);
-
-        int x1 = x;
-        int x2 = x + width;
-        int y1 = y;
-        int y2 = y + height;
-
-        if (x2 < x1) {
-            int tmp = x1;
-            x1 = x2;
-            x2 = tmp;
-        }
-        if (y2 < y1) {
-            int tmp = y1;
-            y1 = y2;
-            y2 = tmp;
-        }
-
-        this.fill(x1, y1, x2, y2, color);
-    }
-
-    @Override
-    public void drawText(String text, int x, int y, int font, int color) {
-        drawText(1.0f, text, x, y, font, color);
-    }
-
-    @Override
-    public void drawText(float scale, String text, int x, int y, int font, int color) {
-        if (color == 0)
-            return;
-        if (font == 0)
-            scale *= 2;
-
-        int lineIndex = 0;
-        for (String line : text.split("\n")) {
-            int finalColor = getColor(color);
-
-            matrices.push();
-            matrices.translate(x, y + (lineIndex * Fonts.getHeight()));
-            matrices.scale(scale, scale);
-
-            this.state.addText(
-                    new TextGuiElementRenderState(
-                            SaturnClient.client.textRenderer,
-                            ((Text) Fonts.setFont(line, font)).asOrderedText(),
-                            new Matrix3x2f(this.matrices.stack),
-                            0, font == 0 ? 1 : 8,
-                            finalColor, 0, false, this.scissorStack.peekLast()));
-
-            matrices.pop();
-
-            lineIndex++;
-        }
-    }
-
-    @Override
-    public int getScaledWindowWidth() {
-        return SaturnClient.client.getWindow().getScaledWidth();
-    }
-
-    @Override
-    public int getScaledWindowHeight() {
-        return SaturnClient.client.getWindow().getScaledHeight();
-    }
-
-    // Texture rendering
-    @Override
-    public void drawTexture(IdentifierRef sprite, int x, int y, float u, float v, int width, int height) {
-        drawTexture(sprite, x, y, u, v, width, height, -1);
-    }
-
-    @Override
-    public void drawTexture(IdentifierRef sprite, int x, int y, float u, float v, int width, int height, int color) {
-        drawTexture(sprite, x, y, u, v, width, height, width, height, width, height, color);
-    }
-
-    @Override
-    public void drawTexture(IdentifierRef sprite, int x, int y, float u, float v, int width, int height,
-            int regionWidth, int regionHeight, int textureWidth, int textureHeight) {
-        drawTexture(sprite, x, y, u, v, width, height, regionWidth, regionHeight, textureWidth, textureHeight, -1);
-    }
-
-    @Override
-    public void drawTexture(IdentifierRef sprite, int x, int y, float u, float v, int width, int height,
-            int regionWidth, int regionHeight, int textureWidth, int textureHeight, int color) {
-        drawTexturedQuad((Identifier) (Object) sprite, x, x + width, y, y + height,
-                (u + 0f) / textureWidth,
-                (u + regionWidth) / textureWidth,
-                (v + 0f) / textureHeight,
-                (v + regionHeight) / textureHeight,
-                color);
-    }
-
-    private void drawTexturedQuad(Identifier sprite, int x1, int x2, int y1, int y2,
-            float u1, float u2, float v1, float v2, int color) {
-        if (color == 0)
-            return;
-        color = getColor(color);
-
-        if (sprite.getPath().endsWith(".svg")) {
-            sprite = (Identifier) (Object) SvgTexture.getSvg(
-                    (IdentifierRef) (Object) sprite,
-                    (x2 - x1) * 2, (y2 - y1) * 2);
-        }
-
-        GpuTextureView gpuTextureView = SaturnClient.client.getTextureManager()
-                .getTexture(sprite).getGlTextureView();
-
-        this.state.addSimpleElement(new TexturedQuadGuiElementRenderState(
-                RenderPipelines.GUI_TEXTURED,
-                TextureSetup.withoutGlTexture(gpuTextureView),
-                new Matrix3x2f(this.matrices.stack),
-                x1, y1, x2, y2, u1, u2, v1, v2, color,
-                this.scissorStack.peekLast()));
-    }
-
-    // Scissor management
-    @Override
-    public void enableScissor(int x1, int y1, int x2, int y2) {
-        ScreenRect rect = new ScreenRect(x1, y1, x2 - x1, y2 - y1).transform(this.matrices.stack);
-        scissorStack.push(rect);
-    }
-
-    @Override
-    public void disableScissor() {
-        scissorStack.pop();
-    }
-
-    @Override
-    public boolean scissorContains(int x, int y) {
-        return scissorStack.contains(x, y);
-    }
-
-    public static class ScissorStack {
-        private final Deque<ScreenRect> stack = new ArrayDeque<>();
-
-        public ScreenRect push(ScreenRect rect) {
-            ScreenRect last = stack.peekLast();
-            if (last != null) {
-                ScreenRect intersection = Objects.requireNonNullElse(rect.intersection(last), ScreenRect.empty());
-                stack.addLast(intersection);
-                return intersection;
-            } else {
-                stack.addLast(rect);
-                return rect;
-            }
-        }
-
-        @Nullable
-        public ScreenRect pop() {
-            if (stack.isEmpty())
-                throw new IllegalStateException("Scissor stack underflow");
-            stack.removeLast();
-            return stack.peekLast();
-        }
-
-        @Nullable
-        public ScreenRect peekLast() {
-            return stack.peekLast();
-        }
-
-        public boolean contains(int x, int y) {
-            return stack.isEmpty() || stack.peekLast().contains(x, y);
-        }
-    }
-
-    // Item rendering
-    @Override
-    public void drawItem(ItemStackRef stack, int x, int y) {
-        drawItem(null, SaturnClient.client.world, stack, x, y, 0);
-    }
-
-    private void drawItem(@Nullable LivingEntity entity, @Nullable World world, ItemStackRef stack, int x, int y,
-            int seed) {
-        drawItem(entity, world, (ItemStack) (Object) stack, x, y, seed, 0);
-    }
-
-    private void drawItem(@Nullable LivingEntity entity, @Nullable World world, ItemStack stack, int x, int y, int seed,
-            int z) {
-        if (!stack.isEmpty()) {
-            KeyedItemRenderState keyedItemRenderState = new KeyedItemRenderState();
-            SaturnClient.client.getItemModelManager().clearAndUpdate(keyedItemRenderState, stack,
-                    ItemDisplayContext.GUI, world,
-                    entity, seed);
-
-            try {
-                this.state.addItem(new ItemGuiElementRenderState(stack.getItem().getName().toString(),
-                        new Matrix3x2f(this.matrices.stack), keyedItemRenderState, x, y,
-                        this.scissorStack.peekLast()));
-            } catch (Throwable throwable) {
-                CrashReport crashReport = CrashReport.create(throwable, "Rendering item");
-                CrashReportSection crashReportSection = crashReport.addElement("Item being rendered");
-                crashReportSection.add("Item Type", () -> String.valueOf(stack.getItem()));
-                crashReportSection.add("Item Components", () -> String.valueOf(stack.getComponents()));
-                crashReportSection.add("Item Foil", () -> String.valueOf(stack.hasGlint()));
-                throw new CrashException(crashReport);
-            }
-        }
-    }
-
-    @Override
-    public void drawSpriteStretched(SpriteRef sprite, int x, int y, int width, int height) {
-        drawSpriteStretched(sprite, x, y, width, height, -1);
-    }
-
-    @Override
-    public void drawSpriteStretched(SpriteRef sprite, int x, int y, int width, int height, int color) {
-        Sprite mcSprite = (Sprite) sprite;
-        if (color == 0 || width == 0 || height == 0)
-            return;
-
-        drawTexturedQuad(mcSprite.getAtlasId(), x, x + width, y, y + height,
-                mcSprite.getMinU(), mcSprite.getMaxU(), mcSprite.getMinV(), mcSprite.getMaxV(), color);
-    }
-
-    @Override
-    public void draw() {
-        // No-op for now
-    }
-
-    public void drawBorder(int x, int y, int width, int height, int color) {
-        fill(x, y, x + width, y + 1, color);
-        fill(x, y + height - 1, x + width, y + height, color);
-        fill(x, y + 1, x + 1, y + height - 1, color);
-        fill(x + width - 1, y + 1, x + width, y + height - 1, color);
-    }
-
-    public void addEntity(EntityRenderState entityState, float scale, Vector3f translation, Quaternionf rotation,
-            @Nullable Quaternionf overrideCameraAngle, int x1, int y1, int x2, int y2) {
-
-        Matrix3x2f mat = this.matrices.stack;
-        float offsetX = mat.m20;
-        float offsetY = mat.m21;
-        float scaleX = mat.m00; // current matrix X scale
-        float scaleY = mat.m11; // current matrix Y scale
-
-        int adjustedX1 = (int) (x1 * scaleX + offsetX);
-        int adjustedY1 = (int) (y1 * scaleY + offsetY);
-        int adjustedX2 = (int) (x2 * scaleX + offsetX);
-        int adjustedY2 = (int) (y2 * scaleY + offsetY);
-
-        float adjustedScale = scale * scaleX; // apply matrix scale to entity scale too
-
-        this.state.addSpecialElement(new EntityGuiElementRenderState(entityState, translation, rotation,
-                overrideCameraAngle, adjustedX1, adjustedY1, adjustedX2, adjustedY2, adjustedScale,
-                this.scissorStack.peekLast()));
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/impl/ui/SaturnScreenFabric.java

@@ -1,140 +0,0 @@
-package org.saturnclient.impl.ui;
-
-import java.time.Duration;
-import java.time.Instant;
-
-import org.saturnclient.ui.RenderScope;
-import org.saturnclient.ui.SaturnScreen;
-import org.saturnclient.ui.SaturnScreen.ScreenProvider;
-
-import net.minecraft.client.MinecraftClient;
-import net.minecraft.client.gui.Click;
-import net.minecraft.client.gui.CubeMapRenderer;
-import net.minecraft.client.gui.DrawContext;
-import net.minecraft.client.gui.RotatingCubeMapRenderer;
-import net.minecraft.client.gui.screen.Screen;
-import net.minecraft.client.input.KeyInput;
-import net.minecraft.client.texture.ResourceTexture;
-import net.minecraft.client.texture.TextureManager;
-import net.minecraft.text.Text;
-import net.minecraft.util.Identifier;
-
-public class SaturnScreenFabric extends Screen implements ScreenProvider {
-    protected static final Identifier PANORAMA = Identifier.of("saturnclient",
-            "textures/gui/title/background/panorama");
-    protected static final CubeMapRenderer PANORAMA_RENDERER = new CubeMapRenderer(PANORAMA);
-
-    public static final RotatingCubeMapRenderer ROTATING_PANORAMA_RENDERER;
-
-    static {
-        ROTATING_PANORAMA_RENDERER = new RotatingCubeMapRenderer(PANORAMA_RENDERER);
-    }
-
-    public final SaturnScreen screen;
-
-    public static void preload(MinecraftClient client) {
-        TextureManager textureManager = client.getTextureManager();
-        for (int i = 0; i < 6; i++) {
-            String var10001 = PANORAMA.getPath();
-            Identifier tex = PANORAMA.withPath(var10001 + "_" + i + ".png");
-            ResourceTexture resourceTexture = new ResourceTexture(tex);
-            textureManager.registerTexture(tex, resourceTexture);
-        }
-    }
-
-    public SaturnScreenFabric(SaturnScreen screen) {
-        super(Text.literal(screen.title));
-        screen.provider = this;
-        this.screen = screen;
-    }
-
-    @Override
-    protected void init() {
-        screen.init();
-    }
-
-    @Override
-    public void render(DrawContext context, int mouseX, int mouseY, float delta) {
-        if (screen.start == null) {
-            screen.start = Instant.now();
-        }
-        long elapsed = Duration.between(screen.start, Instant.now()).toMillis();
-
-        mouseX *= 2;
-        mouseY *= 2;
-
-        if (client.world == null && client.getCurrentServerEntry() == null) {
-            // ROTATING_PANORAMA_RENDERER.render(context, this.width, this.height, true);
-        }
-
-        RenderScope renderScope = new RenderScopeImpl(context);
-
-        screen.render(renderScope, mouseX, mouseY, delta, elapsed);
-    }
-
-    @Override
-    public boolean mouseClicked(Click click, boolean doubled) {
-        if (screen.mouseClicked(click.x(), click.y(), click.button())) {
-            return true;
-        }
-
-        return super.mouseClicked(click, doubled);
-    }
-
-    @Override
-    public boolean mouseDragged(Click click, double offsetX, double offsetY) {
-        if (screen.mouseDragged(click.x(), click.y(), click.button(), 0.0, 0.0)) {
-            return true;
-        }
-
-        return super.mouseDragged(click, offsetX, offsetY);
-    }
-
-    @Override
-    public boolean mouseReleased(Click click) {
-        if (screen.mouseReleased(click.x(), click.y(), click.button())) {
-            return true;
-        }
-
-        return super.mouseReleased(click);
-    }
-
-    @Override
-    public boolean mouseScrolled(double mouseX, double mouseY, double horizontalAmount, double verticalAmount) {
-        if (screen.mouseScrolled(mouseX, mouseY, horizontalAmount, verticalAmount)) {
-            return true;
-        }
-        return super.mouseScrolled(mouseX, mouseY, horizontalAmount, verticalAmount);
-    }
-
-    @Override
-    public boolean keyPressed(KeyInput input) {
-        if (screen.keyPressed(input.getKeycode(), input.scancode(), input.modifiers())) {
-            return true;
-        }
-
-        return super.keyPressed(input);
-    }
-
-    @Override
-    public void resize(MinecraftClient client, int width, int height) {
-        screen.resize(width, height);
-        super.resize(client, width, height);
-    }
-
-    @Override
-    public void close() {
-        this.screen.onClose();
-        super.close();
-    }
-
-    @Override
-    public int getWidth() {
-        return width * 2;
-    }
-
-    @Override
-    public int getHeight() {
-        return height * 2;
-    }
-}

versions/1.21.10/src/main/java/org/saturnclient/saturnclient/SaturnRenderState.java

@@ -1,10 +0,0 @@
-package org.saturnclient.saturnclient;
-
-import org.saturnclient.client.player.SaturnPlayer;
-
-import net.fabricmc.fabric.api.client.rendering.v1.RenderStateDataKey;
-
-public class SaturnRenderState {
-    public static RenderStateDataKey<SaturnPlayer> saturnDataKey = RenderStateDataKey
-            .create(() -> "saturn-client-player");
-}

versions/1.21.10/src/main/java/org/saturnclient/saturnclient/mixin/PlayerEntityRendererMixin.java

@@ -1,61 +0,0 @@
-package org.saturnclient.saturnclient.mixin;
-
-import net.minecraft.client.network.ClientPlayerLikeEntity;
-import net.minecraft.client.render.entity.EntityRendererFactory;
-import net.minecraft.client.render.entity.LivingEntityRenderer;
-import net.minecraft.client.render.entity.PlayerEntityRenderer;
-import net.minecraft.client.render.entity.model.PlayerEntityModel;
-import net.minecraft.client.render.entity.state.PlayerEntityRenderState;
-import net.minecraft.entity.PlayerLikeEntity;
-import net.minecraft.entity.player.PlayerEntity;
-import net.minecraft.text.MutableText;
-import net.minecraft.text.Text;
-import net.minecraft.util.Formatting;
-
-import org.saturnclient.client.player.Roles;
-import org.saturnclient.client.player.SaturnPlayer;
-import org.saturnclient.impl.cosmetics.CloakFeatureRenderer;
-import org.saturnclient.impl.cosmetics.HatFeatureRenderer;
-import org.saturnclient.saturnclient.SaturnRenderState;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.Inject;
-import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
-
-@Mixin(PlayerEntityRenderer.class)
-public abstract class PlayerEntityRendererMixin
-        extends LivingEntityRenderer<PlayerEntity, PlayerEntityRenderState, PlayerEntityModel> {
-
-    protected PlayerEntityRendererMixin() {
-        super(null, null, 0.0f);
-    }
-
-    @Inject(method = "<init>", at = @At("TAIL"))
-    private void addCustomFeatureRenderer(EntityRendererFactory.Context ctx, boolean slim, CallbackInfo ci) {
-        this.addFeature(new HatFeatureRenderer(this));
-        this.addFeature(new CloakFeatureRenderer(this, ctx.getEquipmentModelLoader()));
-    }
-
-    @Inject(method = "updateRenderState", at = @At("TAIL"))
-    public <A extends PlayerLikeEntity & ClientPlayerLikeEntity> void updateRenderState(
-            A entity, PlayerEntityRenderState state,
-            float f, CallbackInfo ci) {
-        if (entity == null) {
-            return;
-        }
-
-        SaturnPlayer player = SaturnPlayer.get(entity.getUuid());
-
-        state.setData(SaturnRenderState.saturnDataKey, player);
-
-        if (player != null) {
-            MutableText iconText = Text.literal(Roles.getSaturnIndicator())
-                    .styled(style -> style.withColor(Roles.getIconColor(player.uuid)));
-
-            state.displayName = Text.empty()
-                    .append(iconText.copy())
-                    .append(Text.empty().formatted(Formatting.RESET))
-                    .append(state.displayName.copy());
-        }
-    }
-}