playcanvas / playcanvas/engine
Wrong colors in Gaussian Splats when using linear workflow
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- JavaScript
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Description
I've noticed a significant color difference in Gaussian Splats when switching from the "Classic" workflow to the "Modern" (Linear) workflow. While I understand that the Modern workflow uses sRGB for better accuracy in general, the Splats appear to have gamma changes but color issues compared to the original look.
Are these color changes expected behavior for Splats in Linear space?
Is this a known issue with the current Splat rendering implementation?
Is there a specific tweak or pipeline setting I should adjust to match the original colors?
Screenshots Comparison below: Left: Classic/Default workflow | Right: Linear/Modern workflow.
Left classic-default workflow, right linear-modern workflow.
Thank you in advance!
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the screenshots by comparing Gaussian Splats in the Classic/Default and Modern/Linear workflows. Begin by tracing the current Splat rendering implementation and its color-space handling, then determine whether the difference is expected or a rendering defect. Done means documenting the cause and providing a confirmed setting or fix that matches the intended colors.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100