Interesting thought experiment: Replace the GPU triangle rasterization hardware with an axis aligned rectangle rasterizer. No triangles allowed unless you implement them yourself in the fragment shader. Would WebRender still work? (I think the answer is yes?)https://twitter.com/richgel999/status/1220920446071328769 …
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Shoutout to the gloriously hacky GL_NV_fill_rectangle extension which is literally “call this function to make glDrawArrays(GL_TRIANGLES, …) draw axis aligned rectangles instead of triangles” https://www.khronos.org/registry/OpenGL/extensions/NV/NV_fill_rectangle.txt …
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For those who aren’t graphics programmers, this is like if instead of creating two functions mkdir() and rmdir(), Unix decided to just have mkdir(), but to have a function you could call beforehand to make mkdir() actually delete directories instead
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