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Questions tagged [differential]

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Improve accuracy of mesh gradient?

So to make it simple. I currently use a method I found online to compute the gradient of a scalar field of a mesh. To test how accurate this is, I made a sphere and followed the gradient direction of ...
Makogan's user avatar
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An equation about PDFs and differentials in the book of pbrt-v3

Why does the equation at the bottom of the following page hold? $p(\theta,\phi)d\theta d\phi=p(\omega)...
chaosink's user avatar
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