NVIDIAGameWorks / NVIDIAGameWorks/rtx-remix
[Runtime Bug]: Recent commit causes light artifacting when using rayportals
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Description
Describe the bug
Using runtime builds after commit: Ray tMax NaN Fix and having a rayportal pair in the scene results in:
https://github.com/user-attachments/assets/2e61c520-721b-4b4a-887d-c909715cb37b
Unchecking either Temporal Reuse or Spatial Reuse "fixes" it. Setting ReSTIR GI Spatial Bias Correction to anything but Pairwise Raytrace does as well.
How do you reproduce the bug?
- Grab the Portal 2 Compatibility mod from: https://github.com/xoxor4d/p2-rtx
- Use any runtime build that includes the mentioned commit
- Use the in-game console:
map sp_a4_tb_introand place a portal pair in the first room like shown in the video
Version
latest
Contributor guide
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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 by comparing runtime builds before and after commit 32e26ff4ddfe2ad81e6524f8bf07ae34ba058683. Reproduce with the Portal 2 Compatibility mod, map sp_a4_tb_intro, and a rayportal pair in the first room while Temporal Reuse, Spatial Reuse, and Pairwise Raytrace are enabled. Done means the light artifacting is no longer visible under those settings.
Written by the indexing model from the issue text.
Assessment
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100