Regenerate the ALab guassian splat using an ACEScg pipeline

[akhil-mitt]

Summary

The current ALab Gaussian splat was generated from 8-bit sRGB PNG images (both HDR and SDR versions) due to pipeline limitations at the time of generation. This falls short of a full ACEScg pipeline and limits the quality and colour accuracy of the splat. This issue tracks the work to regenerate the splat using a proper ACEScg 16-bit half float pipeline.

More documentation available here

Current Limitations

• Training images were 8-bit sRGB PNGs
• No full ACEScg colour pipeline was used during generation

Proposed Work

• Regenerate training renders from ALab in ACEScg 16-bit half float OR use glimpse renders OR eventually moonray renders
• Retrain Gaussian splat on ACEScg image inputs
• Validate colour accuracy and quality against original splat
• Document the full pipeline for reproducibility, including:
  • Render settings and colour space configuration
  • Image format and bit depth requirements
  • Training parameters and tooling used
  • Any OCIO configuration required

Goal

Produce a reference-quality ACEScg Gaussian splat of ALab alongside clear documentation so the community can reproduce the result with their own assets.

References

• [ACES](https://acescentral.com/)

Maybe useful diagram

Doesn't need to be 32bit!! - 16bit half float is good enough! this was theorycrafting :)