Z-Fight when r.Shaders.Optimize=0

Development Rendering
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1

CPU: i9-10900K
GPU: RTX A5000
System: Windows 10 Pro 21H2
Engine: UE 5.03, both the installation and source versions can reproduce the problem

Set:
r.Shaders.Optimize=0
r.Shaders.Symbols=1
r.Shaders.SkipCompression=1

Create a Sphere and rotate it to reproduce the problem

2

I’m guessing it could be a graphics driver problem. Reproduced the exact settings on a 1050ti and zero graphical glitches.

4

RTX A5000, driver versions 517.40 and 472.47, both versions can reproduce the bug.

I tested the RTX 3070 again, driver version 516.59, still can reproduce.

5

I’m on 522.25 Those are some older drivers.

6

fixed on UE 5.1