protonscr

Superposition Benchmark - Shadows broken on shaders "High" or lower.

dxvkclosed nvidia proprietary
doitsujin/dxvk#3405 · opened 2023-05-07 by Iglu47 · updated 2026-06-16 · 2 comments · github
IIglu47 2023-05-07 github

Shadows break when shader quality is set to "High", "Medium" or "Low". On "Extreme" or higher - all fine.
(so presets "1080p High", "1080p Medium", "720p Low" are enough to reproduce the problem)

screenshots of the problem

How it looks on dxvk:
dxvk-on-win
How it looks on d3d11 native:
native

Highly probably NVIDIA specific issue.

Software information

Unigine Superposition v1.1 (https://benchmark.unigine.com/superposition)
Shaders quality "High" or lower (on "Extreme" or higher - all fine)

System information

  • GPU: NVIDIA GeForce GTX 1080 Ti (Pascal)
  • Driver: 530.41.03 (Linux) / 531.68 (Windows 10)
  • Wine version: proton-8.0-2c / Windows 10 22H2
  • DXVK version: 2.1

Apitrace file

*internal monitoring was flickering already during apitrace capture

Proton log file

IIglu47 2023-05-07 github

This is also can be reproduced with dxvk legacy,
so I checked some versions of NVIDIA drivers and I got the following result:

  • 530.41.03 - broken shadows
  • 525.116.03 - broken shadows
  • 515.105.01, 515.86.01, 515.57, 515.48.07 - broken shadows
  • 510.108.03 - shadows looks fine
  • 470.182.03 - shadows looks fine

Unfortunately, the problem occurs somewhere between the 510.x and 515.x branches (I can't seem to be more precise).

upd. I did more tests for a more accurate result - information has been updated

The initially described issue is not present on DXVK with NVIDIA 470.182.03 and 510.108.03 drivers.

screenshots

proton8 on 510.108.03:
proton8-and-510 x
dxvk legacy on 470.182.03:
dxvk-legacy-and-470 x

BBlisto91 2024-05-09 github

Noting that i reproduce on my RTX 4080 with 550.40.61 and dxvk master

Proton versions