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ID |
Category [?] |
Severity [?] |
Reproducibility |
Date Submitted |
Last Update |
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08314 |
Image Enhancement |
Minor |
Always |
May 11, 2022, 20:27 |
May 17, 2022, 02:27 |
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Tester |
hexaae |
View Status |
Public |
Platform |
MAME (Unofficial Binary) |
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Assigned To |
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Resolution |
No change required |
OS |
Windows 10/11 (64-bit) |
| Status [?] |
Closed |
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Driver |
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Version |
0.243 |
Fixed in Version |
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Build |
64-bit |
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Fixed in Git Commit |
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Github Pull Request # |
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Summary |
08314: OpenGL shaders not applied when prescale 2+ |
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Description |
I'm not sure it's a bug, but it doesn't happen for D3D HSLS shaders so...
I've noticed when prescale is not = 1, the OpenGL shaders are ignored (not applied):
#
# OSD ACCELERATED VIDEO OPTIONS
#
prescale <n>
<n> MUST be = 1 or GL Shaders won't be applied anymore.
Reproduced on Arcade64.exe 0.243 (Apr 29 2022) (MAME unofficial fork), Windows. |
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Steps To Reproduce |
1. change bitmap prescale option > 1 (e.g. 3)
2. launch a game from MAME |
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Additional Information |
How to reproduce this in MAME:
1. Copy "CRT Geom HQ.vsh" and "CRT Geom HQ_rgb32_dir.fsh" from Arcade64\hash to the root of the mame installation.
2. Follow the instructions at https://docs.mamedev.org/advanced/glsl.html to enable GLSL.
3. In mame.ini, set glsl_shader_mame0 to "CRT Geom HQ" (with the quotes)
4. Start mame (I used Captain Commando)
>mame captcomm -video opengl and it will run.
5. Now run mame again, but add the -prescale 2 option, and the shader will be seen to now be disabled. |
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