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I will say, the loop to interpolate triangle data is the slowest part of the software renderer now, I think. Texture sampling is still fairly slow as well. We'd still...

Right. My biggest concern would be "depth boxes" from alpha testing. For example, if some far away trees or clouds were drawn to cover the sun, but without alpha testing...

Could you try exporting a GE debugger dump on PC? To do this, open the game and select Debug -> GE debugger..., then when it's displaying the scene, press Record...

That frame dump does show transparent water (from a PSP):  Doesn't look like water I'd want to drive through, haha, but let's see. -[Unknown]

Draws the ground and sky, then gets to a shadow of the vehicle at 745/1768 (which looks fine, at least in software.) At this point, depth is mostly near 1,...

As a quick test, I tried enabling depth write on this draw. Here's what software drew:  Hardware is similar, although it has more and darker patches of...

0b64d58 (v1.10.3-1209-g0b64d58c7) fixed a typo in a recent change. If it was working for several versions before that, it might actually be that change which did it rather than the...

"Correction" is a complicated thing with cheats. I don't think you have the right idea about what cheats are. Imagine there's a restaurant you like to eat at. And you've...

What frame rate does it get on a PSP? There are plugins for CFW that can show it. -[Unknown]

Ideally this kind (which can be played back afterward on various difference devices): https://github.com/hrydgard/ppsspp/wiki/How-to-create-a-frame-dump It sounds like the Vulkan issue is Mali only with geometry shaders, but I'd like to...