NVIDIAGameWorks / NVIDIAGameWorks/rtx-remix
[Runtime Bug]: NRC causes the dark scene to be lit up for a few seconds when entering from a bright scene
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Description
Describe the bug
A bug happened where when having NRC enabled, for some reason transitioning from a bright to dark scene (eg, going inside a dark room from a bright outside) causes the room to be lit up for a few seconds before fating back into darkness, the bug becomes less apparent when going up in quality levels
How do you reproduce the bug?
The easiest way i found of consistently recreating this bug was playing gmod-rtx and running the "Backrooms - Level 4" (enabled the medium setting to make the effect more apparent), if required ill find other means of recreating this beyond gmod-rtx
https://github.com/user-attachments/assets/9b1c932d-722f-4590-b66a-d9c6b92125f2
Mod link: https://github.com/Xenthio/garrys-mod-rtx-remixed
Map link: https://steamcommunity.com/sharedfiles/filedetails/?id=3014213790
What is the expected behavior?
The runtime should have it so that with NRC dark rooms always stay dark and not be affected by whatever information you had in a prior scene beyond the accurate path tracing, much like importance sampled which the noisiest but most accurate indirect lighting method
Version
The gmod-rtx runtime being used is based on dxvk-remix commit 6d75248
Logs
Crash dumps
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Media
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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
Reproduce the transition in gmod-rtx using the Backrooms - Level 4 map with NRC enabled, then review remix-dxvk.log and nrc_session_log.txt. Compare the NRC behavior when entering a dark scene from a bright scene with the importance-sampled mode. Done means the dark room does not remain temporarily lit by information from the prior scene.
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
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100