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Emulator Issues #3479

closed

Polygon edges appear using antialiasing and OpenGL

Added by xamtheone about 14 years ago.

Status:
Fixed
Priority:
Normal
Assignee:
-
Category:
GFX
% 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

What steps will reproduce the problem?
1.Play Metroid Other M (screenshot #1, #2) or Zelda Wind Waker (screenshot #5) with OpenGL plugin and antialiasing activated with an ATI graphic card

What is the expected output? What do you see instead?
Expected same result than without antialiasing (screenshot #3). Instead polygon edges appear in some games (especially Metroid Other M).

Dolphin version with the problem? Other Dolphin version without the
problem?
Bug appeared precisely in r6103 and is in all revisions up to the last one I've tried (r6381). Previous versions don't have the problem.

32-bit or 64-bit and any other build parameters?
32-bit

OS version and versions of tools/libraries used?
Windows XP PRO (fr) 32bits

Please provide any additional information below.
The bug only occurs when antialiasing is activated in OpenGL, at any level (from 2x to 16xCSAA). I've tried changing all other parameters but that's the only cause to the problem it seems. DX9 is not affected.

I have recently changed my graphic card, I used to have a NVIDIA GeForce 8800 GTS 512MB, and now have a ATI Radeon HD5870 2GB. I'm pretty sure the bug appeared when I changed my graphic card, so it's probably a problem with recent ATI cards only and/or drivers...

If per-pixel lighting is enabled, the bug is less visible in some parts of the games. Disabling material lighting (screenshot #4) also seems to hide more or less the lines.

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