Hartmut
2377cb192a
InlineCadViewer: STL-derived GLBs have non-indexed geometry (unique vertex per triangle face). computeVertexNormals() on non-indexed geometry produces per-face normals (faceted shading). Fix: mergeVertices() first to create shared/indexed geometry, then computeVertexNormals() averages across adjacent faces → smooth shading. Indexed Blender GLBs are unaffected. generate_gltf_geometry_task: asyncio.run() inside a Celery worker that already runs asyncpg causes 'Future attached to a different loop'. Replace async _store() with sync SQLAlchemy session (matching the rest of the task). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>