Learning diary › Year 2024 › September, 2024 › 2024-09-11 [2024-09-11]

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#os #shader
- trying to figure out curvature calculation in shaders
  - Screen Space Curvature Shader is a trick to mimic curvature calculation in shaders,using dFdx, dFdy in GLSL, Curvature shader by iY0Yi used it but it shows certain shower door effect
  - glsl-autodiff properly uses forward auto differentiation to calculate curvature in shaders, but it requires rewrite every math function for bookkeeping the gradient and the Hessian