AMD 780M Vulkan renderer leads to corrupted textures
Current Behavior
Enabling vulkan on rdna 3 based cards, such as 780m igpus break pebbles and textures in-game. Also broken shadows that eventually garble and have corrupted textures. Observed in MK8 and BOTW. No graphical or texture enhancements applied, can be replicated on two seperate 780m devices
Vram allocation does not change anything. Only fixed by changing renderer to OpenGL, and seems to be Rdna3/780m specific. Was unable to test on a discrete rdna3 card, no issue on Rdna2 and Nvidia counterparts (6800xt and 3070)
Expected Behavior
Nil graphical issues and not garbled textures
Steps to Reproduce
Enabling vulkan renderer Playing any game: Breath of the wild etc
System Info (Optional)
OS: Windows 11 22631.3374 KB5035942 GPU: 780M on Ryzen Z1 Extreme and 7840u
Emulation Settings (Optional)
Default with no mods or changed
Also Tested with: BCML enabled Second Wind enabled No graphical mods or changes on 1.2.6 and 2.0 cemu
Logs (Optional)
Tested with OpenGl that had no issues, followed by switching to Vulkan with issues (UMA frame buffer set to 6gigs on system)
Source: cemu-project/Cemu