[Runtime Bug]: Nearby emissives colours the bounce lighting from a fully lit white room with NRC

[Al7sayan]

Describe the bug

A bug happened where when nearing the entrance of gm_construct_rtx's giant blank white room the bounce lighting would shift near the color of my weapon's emissive texture

How do you reproduce the bug?

Use xenthio's "https://github.com/Xenthio/garrys-mod-rtx-remixed" mod

Open "gm_construct_rtx" and go down to the bright white room with either the gravity gun or physics gun equipped, make sure NRC is enabled

What is the expected behavior?

The runtime shouldn't let nearby emissives manipulate the bounce lighting of a separate light source/room

Version

The gmod-rtx runtime being used is based on dxvk-remix commit 6d75248

Logs

nrc_session_log.txt

remix-dxvk.log

Crash dumps

No response

Media

Gmod-rtx.2026.06.28.-.19.53.02.01.mp4

[NV-LL]

Hey @Al7sayan - thanks for letting us know! We've filed REMIX-5672 for internal investigation of this issue.

[nv-jshopf]

There is a known issue of NRC having some instability (shifting overall color and intensity) and it is being internally tracked as REMIX-4206. The exact issue hasnt been pinned down yet, but there is some evidence that adjusting the Max Expected Average Radiance and Luminance Clamp Multiplier to tamp down outliers results in better behavior, so I would suggest experimenting with that. I am leaving this ticket open and linking it to the internal bug so that can you can be notified when the issue is resolved. Thanks for thorough bug report!