ModelTranslator: 烘焙固定 -t 1——Blender 5.0 多线程 selected-to-active 射线求交竞争崩溃（store 复现+单线程验证）

2026-07-20 09:41:51 +08:00
parent e78bd04ba8
commit b257fdb780
4 changed files with 67 additions and 4 deletions
@@ -0,0 +1,60 @@
+"""诊断：导入 FBX 检查几何是否损坏（NaN 顶点/退化面/validate 修复量）。
+用法：blender -b --factory-startup --python tests/bl_diag_mesh.py -- <model.fbx> [apply]
+"""
+import math
+import os
+import sys
+
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+
+def main():
+    import bpy
+    from bl_decimate import join_meshes
+    argv = sys.argv[sys.argv.index("--") + 1:]
+    path = argv[0]
+    do_apply = len(argv) > 1 and argv[1] == "apply"
+
+    bpy.ops.wm.read_factory_settings(use_empty=True)
+    before = set(bpy.data.objects)
+    bpy.ops.import_scene.fbx(filepath=path)
+    new = [o for o in bpy.data.objects if o not in before]
+    meshes = [o for o in new if o.type == 'MESH']
+    print("DIAG objects=%d meshes=%d" % (len(new), len(meshes)))
+    for o in new:
+        print("DIAG   obj=%r type=%s scale=%s" % (o.name, o.type, tuple(round(s, 4) for s in o.scale)))
+    obj = join_meshes(meshes)
+    if do_apply:
+        bpy.ops.object.select_all(action='DESELECT')
+        obj.select_set(True)
+        bpy.context.view_layer.objects.active = obj
+        bpy.ops.object.transform_apply(location=True, rotation=True, scale=True)
+        print("DIAG transform applied")
+
+    me = obj.data
+    print("DIAG verts=%d polys=%d dims=%s" % (
+        len(me.vertices), len(me.polygons),
+        tuple(round(d, 4) for d in obj.dimensions)))
+
+    nan_verts = 0
+    huge_verts = 0
+    for v in me.vertices:
+        x, y, z = v.co
+        if any(math.isnan(c) or math.isinf(c) for c in (x, y, z)):
+            nan_verts += 1
+        elif max(abs(x), abs(y), abs(z)) > 1e6:
+            huge_verts += 1
+    print("DIAG nan_verts=%d huge_verts=%d" % (nan_verts, huge_verts))
+
+    zero_area = sum(1 for p in me.polygons if p.area < 1e-12)
+    print("DIAG zero_area_polys=%d" % zero_area)
+
+    # validate(verbose) 会打印它修的每个问题；返回 True 表示有改动
+    changed = me.validate(verbose=True)
+    print("DIAG validate_changed=%s" % changed)
+    print("DIAG after_validate verts=%d polys=%d" % (len(me.vertices), len(me.polygons)))
+    print("DIAG DONE")
+
+
+if __name__ == "__main__" and "--" in sys.argv:
+    main()