flyinghead

I suspect an nvidia driver issue. And it also happens with the per triangle/per strip modes, which are very basic and don't use any advanced Vulkan feature.

Upgraded to driver 575.64 and I still can't reproduce it.

All reports mention RTX 30xx gpus and I have a 1080.

The Dreamcast native resolution is 640x480 and almost all games run at that resolution. There are a few fighting games using 640x240 or 320x240 (like SFIII 3rd Strike) but it's...

You'll get better results when rendering to 640x480 and then downsampling (with bi-linear filtering) to 320x240. But it will likely be as slow or slower than using 640x480 only.

You can force bi-linear filtering for all textures: Video > Advanced > Texture Filtering > Force linear

Right, I believe flycast always renders at 640x480, even when using 240p. But again having this handful of games to render properly won't help with the 1000+ others.

It's a PowerVR bug. See https://github.com/flyinghead/flycast/issues/465

Have you tried to enable Automatic Frame Skipping to improve performance? Try the Normal and Maximum settings. Or set (forced) Frame Skipping to 1 to always render at 30 fps.

> ah okay, the psc uses PowerVR GE8300. so maybe a workaround would be to use nearest neighbor? this issue only happens with nearest-neighbor filtering. > I was thinking about...