v2026.8.28

Changelog

- General training speed improvement
- Fixed training blackout with some GPU/driver combinations – please submit a new issue if you see blackout again
- Training quality improvement for sky and large low-texture surfaces
- Optimize system RAM usage for meshing
- Use separate regularization for surface cleanliness and overexposure
- SfM: Automatically retry with CPU fallback when GPU bundle adjustment gives error
- Fixed missing depth and normal maps when creating dataset from folder of images

Notes:
- This release carries difference in training quality intended to be improvement. Please submit an issue if you notice significant quality degradation compared to previous versions on your dataset.
- macOS binary is not included in this release since I've returned the Mac I borrowed for testing. If you are a Mac user, you may download binary from [v2026.8.17](https://github.com/harry7557558/spirula-studio/releases/tag/v2026.8.17) release, or build the latest code from source.