PSX HW: Severe pixelation across rendered graphics

[davidhedlund]

I did a quick search but couldn't locate an existing report using specific graphics terminology. If a similar report exists, please feel free to link it here and close this issue.

• My GNU/Linux distro is using OpenGL 4.6. "Requirements: OpenGL 3.3 for the opengl renderer" - https://docs.libretro.com/library/beetle_psx_hw/
• In RetroArch both cores are set to "Internal GPU Resolution: 1x (Native)".
• This issue occurs in all games, I'm using the first stage in Wipeout, and Final Fantasy IX, for demonstration.

Beetle PSX HW

Core Version: r24l 9aefd42

I'm experiencing visual artifacts across the entire display. The sky, in particular, exhibits a noticeable pixelation effect in Wipeout. See my screenshot below:

Beetle PSX

No pixelation issues like with Beetle PSX HW. See my screenshot below:

[hizzlekizzle]

Yeah, the OpenGL renderer has a lot of bugs, unfortunately. The Vulkan renderer is much closer to software rendering in reliability.

[davidhedlund]

"Beetle PSX is built without hardware rendering support and lacks enhancements such as texture filtering, PGXP perspective correct texturing, and more. To take advantage of hardware rendering and the various enhancements that come with it, use Beetle PSX HW instead." - https://docs.libretro.com/library/beetle_psx/

Yeah, the OpenGL renderer has a lot of bugs, unfortunately. The Vulkan renderer is much closer to software rendering in reliability.

Thank you! I think that should be added to https://github.com/libretro/docs/blob/master/docs/library/beetle_psx.md -- What do you think about it?

[hizzlekizzle]

Sure, fine by me.

[davidhedlund]

Sure, fine by me.

Thanks:

• https://github.com/libretro/docs/pull/950