4 root causes fixed:
1. export_colors=False was removed in Blender 4.x — caused every Blender
export to fail (exit 1) and always fall back to trimesh. Remove it.
Blender now runs the full pipeline: materials + sharp edges.
2. GlbModel cloned ref never reset on url change — key={glbBlobUrl} forces
React to remount GlbModel on each new blob URL, resetting the ref so
fresh geometry is always loaded.
3. glbBlobUrl not cleared before re-fetch — setGlbBlobUrl(null) added at
start of downloadUrl effect so spinner shows instead of stale mesh.
4. staleTime: 30_000 delayed picking up new MediaAsset after generation.
Changed to staleTime: 0 so invalidation always triggers immediate refetch.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Linked materials are external references — Blender's GLTF exporter cannot
traverse their node trees to extract Principled BSDF PBR values (metallic,
roughness, base color, normal maps). Appended materials are local copies
that the exporter can fully traverse.
Changes:
- asset_library.py: add link=True parameter (default unchanged for renders)
- export_gltf.py: call apply_asset_library_materials with link=False
- export_gltf.py: add export_materials='EXPORT' + export_image_format='AUTO'
to embed textures and ensure full PBR data in the GLB
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- bpy.ops.import_mesh.stl → bpy.ops.wm.stl_import (removed in Blender 4.0)
- mesh.use_auto_smooth = True → bpy.ops.object.shade_smooth_by_angle()
(use_auto_smooth removed in Blender 4.1)
- Apply smooth shading to all objects unconditionally after scale, so
GLB is smooth-shaded even when no sharp edge midpoints are present
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Bug A: Media Library thumbnails were gray because <img src> cannot send
JWT auth headers. Added useAuthBlob() hook (fetch + createObjectURL) in
MediaBrowser.tsx. Also fixed publish_asset Celery task to populate
product_id + cad_file_id on MediaAsset for thumbnail fallback resolution.
Bug B: Product dimensions now shown in Product Details card with Ruler
icon and "from CAD" label when cad_mesh_attributes.dimensions_mm exists.
Bug C: Replaced 128×128 CAD thumbnail with InlineCadViewer component.
Queries gltf_geometry MediaAssets, fetches GLB via auth fetch → blob URL
→ Three.js Canvas with OrbitControls. Falls back to thumbnail + "Load 3D
Model" button. Polling when GLB generation is in progress.
Bug D: trimesh was in [cad] optional extra but Dockerfile only installed
[dev]. Changed to pip install -e ".[dev,cad]" — trimesh now available in
backend container, GLB + Colors export works.
Also added bbox extraction (STL-first numpy parsing) in render_step_thumbnail
and admin "Re-extract CAD Metadata" bulk endpoint.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- docker-compose.yml: change render-worker build context from ./render-worker
to . (project root) so pyproject.toml is accessible; update dockerfile path
- render-worker/Dockerfile: update COPY paths for new build context;
install Python 3.11 via deadsnakes PPA (Ubuntu 22.04 ships 3.10 which
fails the >=3.11 requirement in pyproject.toml)
- 040_media_assets.py: rewrite upgrade() with raw idempotent SQL (CREATE TYPE
inside DO $$ EXCEPTION WHEN duplicate_object $$; CREATE TABLE IF NOT EXISTS;
CREATE INDEX IF NOT EXISTS) to handle pre-existing enum from partial runs
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Migration 039: cad_files.mesh_attributes JSONB column.
domains/products/tasks.py: extract_mesh_attributes Celery task using pythonOCC.
still_render.py + turntable_render.py: _apply_mesh_attributes() sets auto-smooth
based on curved_ratio and topology threshold from OCC analysis.
render_blender.py: passes --mesh-attributes JSON arg to Blender subprocess.
render_still_task: loads mesh_attributes from DB and passes to renderer.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Hartmut