Hartmut ffe3eebfca perf: render pipeline optimizations — sample scaling, USD logging, persistent BVH ...

Task 1: Resolution-aware sample count
- Auto-scale samples for resolutions <= 1024: max(32, samples * max_dim / 2048)
- 512x512 thumbnails: 256 → 64 samples (75% GPU savings)
- Thumbnail tasks capped at 64 samples via context manager
- 2048x2048 HQ renders unchanged

Task 2: USD path preference audit + logging
- Verified USD master path is correctly preferred over GLB tessellation
- Added clear emit() messages: "Using USD master" vs "No USD master — GLB path"
- Dynamic render log label: "USD → Blender" vs "STEP → GLB → Blender"

Task 3: Persistent BVH for turntable animations
- Added scene.render.use_persistent_data = True before frame loop
- BVH acceleration structure cached between frames (not rebuilt per frame)
- Applies to both camera orbit and object rotation modes

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-03-15 12:03:31 +01:00

..

__init__.py

refactor(section-a+c): decompose step_tasks.py into pipeline domain

2026-03-08 20:43:56 +01:00

export_glb.py

feat: per-position camera settings, material alias dialog, product delete, media browser links

2026-03-14 12:16:37 +01:00

extract_metadata.py

refactor: rename thumbnail_rendering queue to asset_pipeline

2026-03-12 22:28:38 +01:00

render_order_line.py

perf: render pipeline optimizations — sample scaling, USD logging, persistent BVH

2026-03-15 12:03:31 +01:00

render_thumbnail.py

perf: render pipeline optimizations — sample scaling, USD logging, persistent BVH

2026-03-15 12:03:31 +01:00