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selimaj-devandclaude df9a2587e6 Add a tool that measures emotes from a store's 3D preview
tools/capture drives a store page's skin viewer in headless Firefox, stepping its clock one tick at
a time and taking every tick from ten fixed cameras. It then fits our own rig to the frames by
rendering the model (a Python port of LimbBend and PoseApplier) and matching outlines and colours,
and writes the result as Emotecraft JSON. It measures pixels only and never reads the page's
animation data. The README covers the steps, the checks and the limits.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-09-29 16:55:08 +02:00

64 lines
2.3 KiB
Python

"""Draws the fitted pose's outline over the captured frames, to see where the fit is off.
.venv/bin/python overlay.py <name> [--ticks 0:13:3] [--views y000,y090,y045,top000]
Writes frames/<name>/overlay.png: rows are views, columns ticks. Red is where only our model is, blue
where only theirs is, and grey where both are.
"""
import argparse
import json
from pathlib import Path
import numpy as np
from PIL import Image
from model import Model, rig_to_pose
from render import Camera, render_masks
def main():
parser = argparse.ArgumentParser()
parser.add_argument("name")
parser.add_argument("--ticks", default="0:13:3")
parser.add_argument("--views", default="y000,y090,y045,top000")
args = parser.parse_args()
base = Path("frames") / args.name
meta = json.loads((base / "views.json").read_text())
data = json.loads((base / "rig.json").read_text())
by_tick = {t["tick"]: np.array(t["rig"]) for t in data["ticks"]}
ticks = [t for t in range(*map(int, args.ticks.split(":"))) if t in by_tick]
views = args.views.split(",")
scale = 2
cams = {v: Camera(meta["views"][v], meta["size"], meta["aspect"], scale) for v in views}
model = Model(spacing=0.25)
tiles = []
for v in views:
row = []
for t in ticks:
pts = np.concatenate(list(model.pose(rig_to_pose(by_tick[t])).values()))
ours = render_masks(pts, data["calib"], {v: cams[v]})[v]
frame = Image.open(base / v / f"{t:04d}.png").reduce(scale)
theirs = np.asarray(frame)[:, :, 3] > 127
img = np.full(ours.shape + (3,), 30, np.uint8)
img[theirs & ours] = (150, 150, 150)
img[ours & ~theirs] = (230, 60, 60)
img[theirs & ~ours] = (60, 110, 240)
row.append(img)
tiles.append(row)
both = np.zeros(tiles[0][0].shape[:2], bool)
for row in tiles:
for img in row:
both |= img.sum(axis=2) > 90
ys, xs = np.nonzero(both)
y0, y1, x0, x1 = max(ys.min() - 4, 0), ys.max() + 4, max(xs.min() - 4, 0), xs.max() + 4
sheet = np.concatenate([np.concatenate([img[y0:y1, x0:x1] for img in row], axis=1) for row in tiles], axis=0)
Image.fromarray(sheet).save(base / "overlay.png")
print("wrote", base / "overlay.png", "ticks", ticks)
if __name__ == "__main__":
main()