Rebuild local Blender WASM environment and recovery evidence

tools/web/check-wbv2-p3-003-desktop.py

@@ -0,0 +1,120 @@
+#!/usr/bin/env python3
+import hashlib
+import json
+import os
+import pathlib
+import sys
+import tempfile
+
+import bpy
+
+
+def rounded(value):
+    return round(float(value), 6)
+
+
+def matrix(value):
+    return [rounded(component) for row in value for component in row]
+
+
+def report():
+    mesh_object = bpy.data.objects.get("WBV2P3003SkinnedMeshObject")
+    armature_object = bpy.data.objects.get("WBV2P3003ArmatureObject")
+    if mesh_object is None or armature_object is None:
+        raise RuntimeError("RIG_INVALID: required objects are missing")
+    armature = armature_object.data
+    bones = []
+    for bone in armature.bones:
+        pose_bone = armature_object.pose.bones[bone.name]
+        bones.append({
+            "name": bone.name,
+            "parent": bone.parent.name if bone.parent else None,
+            "head": [rounded(value) for value in bone.head_local],
+            "tail": [rounded(value) for value in bone.tail_local],
+            "poseMatrix": matrix(pose_bone.matrix),
+            "constraints": [{
+                "name": constraint.name,
+                "type": constraint.type,
+                "influence": rounded(constraint.influence),
+            } for constraint in pose_bone.constraints],
+        })
+    groups = [group.name for group in mesh_object.vertex_groups]
+    weights = []
+    for vertex in mesh_object.data.vertices:
+        weights.append({
+            group.name: rounded(next((item.weight for item in vertex.groups if item.group == group.index), 0.0))
+            for group in mesh_object.vertex_groups
+        })
+    shape_keys = []
+    if mesh_object.data.shape_keys:
+        for key in mesh_object.data.shape_keys.key_blocks:
+            shape_keys.append({
+                "name": key.name,
+                "value": rounded(key.value),
+                "positions": [rounded(component) for point in key.data for component in point.co],
+            })
+    modifier = next((value for value in mesh_object.modifiers if value.type == "ARMATURE"), None)
+    if modifier is None or modifier.object != armature_object:
+        raise RuntimeError("RIG_INVALID: armature modifier is missing")
+    object_constraints = [{
+        "name": constraint.name,
+        "type": constraint.type,
+        "influence": rounded(constraint.influence),
+    } for constraint in mesh_object.constraints]
+    return {
+        "armature": {
+            "id": "armature:" + armature.name,
+            "objectId": "object:" + armature_object.name,
+            "name": armature.name,
+            "bones": bones,
+        },
+        "mesh": {
+            "id": "mesh:" + mesh_object.data.name,
+            "objectId": "object:" + mesh_object.name,
+            "groups": groups,
+            "weights": weights,
+            "shapeKeys": shape_keys,
+            "armatureModifier": {"name": modifier.name, "objectId": "object:" + armature_object.name},
+            "constraints": object_constraints,
+        },
+        "unsupportedConstraint": {
+            "name": "WBV2P3003UnsupportedLimitRotation",
+            "type": "LIMIT_ROTATION",
+            "status": "EXPLICIT_UNSUPPORTED_BY_WASM_DEPSGRAPH",
+        },
+    }
+
+
+def main():
+    arguments = sys.argv[sys.argv.index("--") + 1:]
+    if len(arguments) != 2:
+        raise SystemExit("usage: blender -b --factory-startup --python check-wbv2-p3-003-desktop.py -- FIXTURE REPORT")
+    fixture, output = (pathlib.Path(value).resolve() for value in arguments)
+    bpy.ops.wm.open_mainfile(filepath=str(fixture), load_ui=False)
+    before = report()
+    descriptor, temporary = tempfile.mkstemp(prefix="wbv2-p3-003-reopen-", suffix=".blend", dir=fixture.parent)
+    os.close(descriptor)
+    try:
+        bpy.ops.wm.save_as_mainfile(filepath=temporary, check_existing=False, compress=True)
+        bpy.ops.wm.open_mainfile(filepath=temporary, load_ui=False)
+        after = report()
+    finally:
+        pathlib.Path(temporary).unlink(missing_ok=True)
+    if before != after:
+        raise RuntimeError(f"RIG_INVALID: desktop save/reopen drift: {before} != {after}")
+    value = {
+        "schemaVersion": 1,
+        "task": "WBV2-P3-003",
+        "operation": "RIG_POSE_SKIN_DESKTOP",
+        "fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(),
+        "rig": after,
+        "saveReopen": "EXACT",
+        "blenderVersion": bpy.app.version_string,
+    }
+    output.parent.mkdir(parents=True, exist_ok=True)
+    output.write_text(json.dumps(value, indent=2, sort_keys=True) + "\n", encoding="utf-8")
+    print("wbv2-p3-003-desktop-ok armature=%s bones=%d groups=%d shapeKeys=%d unsupported=explicit saveReopen=exact" % (after["armature"]["id"], len(after["armature"]["bones"]), len(after["mesh"]["groups"]), len(after["mesh"]["shapeKeys"])))
+
+
+if __name__ == "__main__":
+    main()