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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Why would you want to skip the very nice rasterization hardware that's in there?
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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Even that is easier with vertex/pixel shader by either drawing a quad with the correct coordinates or drawing a bounding rectangle and testing if each pixel is in. The compute shader would have to do the rectangle option anyway, but couldn't parallelize with the other polys
Kiitos. Käytämme tätä aikajanasi parantamiseen. KumoaKumoa
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