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Playstation 2 GS emulation – the final frontier of Vulkan compute emulation
As you may, or may not know, I wrote paraLLEl-RDP back in 2020. It aimed at implementing the N64 RDP in Vulkan compute.
My colleague, Runar Heyer, helped out a great deal in the beginning to get this started, doing all the leg-work to study the PS2 from various resources, doing the initial prototype implementation and fleshing out the Vulkan GLSL to emulate PS2 shading. This caused a major problem when we had the idea of writing detailed tests that directly compared against GSdx software renderer, and the test-driven approach fell flat very quickly. These tricks won’t make it perfect by any means, but it greatly mitigates jank in my experience, and I already fixed many upscaling bugs that GSdx Vulkan backend does not solve as we shall see later.
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