Add Chromium-only Blender WebEngine parity work

tools/web/generate-frame-evaluation-golden.py

@@ -0,0 +1,49 @@
+import json
+import pathlib
+import sys
+
+import bpy
+
+
+def main(blend_path: str, output_path: str) -> None:
+    bpy.ops.wm.open_mainfile(filepath=str(pathlib.Path(blend_path).resolve()), load_ui=False)
+    scene = bpy.context.scene
+    object_name = "AnimatedObject"
+    obj = bpy.data.objects.get(object_name)
+    if obj is None:
+        raise RuntimeError(f"{object_name} is missing")
+
+    frames = [1, 5, 10]
+    samples = []
+    for frame in frames:
+        scene.frame_set(frame)
+        depsgraph = bpy.context.evaluated_depsgraph_get()
+        evaluated = obj.evaluated_get(depsgraph)
+        mesh = evaluated.to_mesh(preserve_all_data_layers=True, depsgraph=depsgraph)
+        try:
+            samples.append({
+                "frame": frame,
+                "worldMatrix": [value for row in evaluated.matrix_world for value in row],
+                "positions": [coordinate for vertex in mesh.vertices for coordinate in vertex.co],
+            })
+        finally:
+            evaluated.to_mesh_clear()
+
+    result = {
+        "schemaVersion": 1,
+        "fixture": pathlib.Path(blend_path).name,
+        "evaluator": "Blender Depsgraph",
+        "blenderVersion": bpy.app.version_string,
+        "object": object_name,
+        "mesh": obj.data.name,
+        "frames": samples,
+        "tolerance": {"maxPositionError": 1e-5, "rmsPositionError": 1e-6, "maxMatrixError": 1e-5},
+    }
+    pathlib.Path(output_path).write_text(json.dumps(result, indent=2) + "\n", encoding="utf-8")
+
+
+if __name__ == "__main__":
+    if "--" not in sys.argv or len(sys.argv) <= sys.argv.index("--") + 2:
+        raise SystemExit("usage: blender -b --python generate-frame-evaluation-golden.py -- input.blend output.json")
+    arguments = sys.argv[sys.argv.index("--") + 1:]
+    main(arguments[0], arguments[1])