protonscr

Assassin's Creed Brotherhood: Shadows don't render correctly on AMD

dxvkclosed d3d9
doitsujin/dxvk#2642 · opened 2022-05-14 by K0bin · updated 2023-06-20 · 2 comments · github
KK0bin 2022-05-14 github

Initially reported on Discord by EIREXE.

The issue is fairly obvious in this picture:

https://cdn.discordapp.com/attachments/853130811581530145/975008692925767751/unknown.png

Apitraces:

It renders correctly on Nvidia GPUs. @CME42 identified the D24->D32 workaround as the cause of it. Forcing that makes it possible to reproduce it on Nvidia hardware.

CCME42 2022-08-29 github

The issue is due to depth bias, changing the RValue from 1<<23 to 1<<24 for D32 fixes shadow acne.

KK0bin maintainer 2023-06-20 github

Fixed by #3501

Nothing extracted yet.