Why would you want to skip the very nice rasterization hardware that's in there?
I used to be a GPU coder when the Wii was the king of fixed-function. I managed to get decent at writing screen-space shaders in PS2.0, but the past 5-7 years have just left me in the dust. I want to use compute shaders to rasterize an emulated GPU's triangles. What do, Twitter?
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Because not all emulated GPUs follow the same rasterization rules as the host GPU. Notably, the N64, which can and did support drawing trapezoids with triangle commands by specifying non-coincident starting X coordinates and non-intersecting deltas for the edges.
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Hey Ryan! I'd start with a C function that handles 1 pixel of a primitive given x & y, and then port to PS on 2d tris or rects. Pass a structured buffer of primitive info to index by primitive ID. Happy to look at code if you want to DM!
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Thanks for the advice, Wade! Now I know what I'm going to be doing this weekend.
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