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Graphics programmers / shader wizards out there. Somewhere I saw someone post an article on deriving the vertex positions of a triangle in the fragment shader using barycentrics and pixel derivatives. I can't for the life of me find it, anyone else remember it?
This problem sounded so interesting I had to do some searching to find even something related. I'll be interested to know if someone finds the article you're thinking of. I did come across this, which I didn't previously know about, if hlsl is ok. https://github.com/microsoft/DirectXShaderCompiler/wiki/SV_Barycentrics …
Oh, nice. I hadn’t seen they finally added a barycentric semantic for pixel shaders in Direct3D. ShaderModel 6.1 only though. It’s always boggled my head that it wasn’t something available since like Shader Model 3.0 days since it was clearly something the GPU already had to calc
Yeah, barycentrics would have been good earlier on ):
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