playcanvas / playcanvas/engine
Implement progressive multi-frame rendering
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- Dominant language
- JavaScript
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- Forks
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- Avg merge
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- Merged PRs (30d)
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Description
The algorithm is described in GPU Pro 7, chapter 3.1
It allows for image quality to improve when the camera is static (and the scene is not animated) by accumulation of slightly shifted frames. This generates high quality antialiasing (TAA), and can also be used to generate soft shadows. All this without requiring (many) additional resources.
Additionally, we could possibly add support for progressive scaling here .. rendering the scene in lower resolution when the camera moves to keep the performance higher, and use full resolution when the camera stops.
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
Start with GPU Pro 7, chapter 3.1, then trace the engine's rendering path to determine where shifted-frame accumulation belongs. Clarify whether the scope includes temporal antialiasing, soft shadows, progressive resolution scaling, or all three; done should include a working progressive-rendering result with quality improving while the camera and scene remain static.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- computer-graphics, performance
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100