NVIDIAGameWorks
[Runtime Bug]: Large Shadow Artifacts when characters enter or exit frustum as well as move across screen
Describe the bug
Large shadow rendering artifacts appear when characters enter or exit the frustum or move across the screen, drawing large shadow triangles across the screen from their position to seemingly random positions somewhere else on the screen.
This is new in 1.1
How do you reproduce the bug?
Load up Vampire + RTX mod, stand in a crowded area in a map like sm_hub_1 and let characters walk by the screen, when they step in and out of the frustum, note the large shadow rendering artifacts.
What is the expected behavior?
Behave as it did previously in terms of shadows for characters and dynamic elements.
Version
1.1.0
Logs
No response
Crash dumps
No response
Media
https://github.com/user-attachments/assets/d0832838-26b3-4623-b26c-f356caa6ff22
Hi @Safemilk. We think we are seeing this behavior in another title and already have a bug for it. I'll bring this up as it affects multiple titles. REMIX-4215 for tracking.
@NV-DM Awesome, thanks for the context! I'll keep eyes on that and confirm whenever there's a possible fix.
@NV-DM Some additional info, forcing "Minimize BLAS Merging" ON, completely fixes the issue. However Minimize BLAS merging is listed as decreasing performance and is mostly for debugging.
But I thought that might be a helpful clue in tracking down why this suddenly started happening.