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Emulator Issues #12450

closed

OpenGL SSAA not working with Radeon GPUs

Added by KrossX about 3 years ago. Updated about 1 month ago.

Status:
Working as intended
Priority:
Normal
Assignee:
-
% Done:

0%

Operating system:
N/A
Issue type:
Bug
Milestone:
Regression:
No
Relates to usability:
No
Relates to performance:
No
Easy:
No
Relates to maintainability:
No
Regression start:
Fixed in:

Description

The sample qualifier appears to not be working properly when used inside an interface block and seems to affect all Radeon products. This driver bug makes SSAA look like MSAA when used. Disabling the usage of interface blocks for Radeons when SSAA is enabled should do the trick, or just always disable it like in DuckStation.

DuckMaster commit:
https://github.com/stenzek/duckstation/commit/0feb8171305ba1d3f1677a04e981971d68e2d711

Bug report on AMD:
https://community.amd.com/t5/opengl-vulkan/bug-opengl-windows-sample-qualifier-on-interface-block-not/m-p/456874

Actions #1

Updated by Miksel12 about 3 years ago

This is the Dolphin issue tracker, it seems like you need the Duckstation issue tracker: https://github.com/stenzek/duckstation/issues

Actions #2

Updated by JosJuice about 3 years ago

No, they're reporting a bug that doesn't happen in DuckStation, so I'm assuming they know what issue tracker they're on. (Though it would have been useful to have a Dolphin version number in the report like the issue template suggests.)

Actions #3

Updated by KrossX about 3 years ago

I confirmed it happening with 5.0-13827, no new changes since. So I'll assume it's been happening since SSAA has been available when using interface blocks. The template seems tailored to game bugs in particular, so I just deleted the thing.

I haven't tested linux, so it's a Windows only driver bug as far as I know.

PS: OpenGL Anisotropic is also broken on Windows with Radeon cards, old cards are safe though. No workaround that I know of.

Actions #4

Updated by Billiard26 about 1 month ago

Is this issue still relevant?

Actions #5

Updated by KrossX about 1 month ago

I think it's no longer a problem, just tested 5.0-21222 and SSAA seems to work fine.

Actions #6

Updated by Billiard26 about 1 month ago

  • Status changed from New to Working as intended
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