[Runtime Bug]: Portal 2 - BLAS merging regressions on batched world geometry since 1.1.0

[xoxor4d]

Describe the bug

After updating my Portal 2 Compatibility Mod to support the latest version of the remix runtime, multiple people and my self noticed world geometry breaking on certain angles / maps.

• checking Minimize BLAS Merging in the Geometry section seems to help but does not completely fix it
• this definitely did not happen on earlier builds of the runtime
• world geometry is batched and gets culled so geometry hashes constantly change

I'll try to pinpoint the commit where it started happening and will update the post.

edit:

• fine on remix 1.0.0 and broken on 1.1.0
• this commit introduced the issue: NVIDIAGameWorks/dxvk-remix@4ead078

How do you reproduce the bug?

1. ToT of remix runtime or any version after this commit: NVIDIAGameWorks/dxvk-remix@4ead078

• Note: being on a commit so far back can cause issues with the remixApi implementation in the comp mod

2. Use the portal 2 compatibility mod (without the custom remix runtime)
   https://github.com/xoxor4d/p2-rtx/releases/tag/v2.2.3

3. Load the game and use console command map sp_a1_wakeup and notice geo issues as can be seen in the attached video

Version

ToT

Media

Issue:
https://drive.google.com/file/d/1fy5mICuivPuMS46NrmNHNQeDnOkKkBO3/view?usp=sharing

With Minimize BLAS Merging checked:
https://drive.google.com/file/d/1dVLBVF-58IH5EVIQfn0vNTcMneGjkL8H/view?usp=sharing

[xoxor4d]

Also happens on the very first map