Microfacet VNDF sampling

TzuChieh / Photon-v2

A program that takes photographs of a virtual world.

MIT License

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Open TzuChieh opened 5 months ago

TzuChieh commented 5 months ago

As the title says, we need VNDF sampling for better BSDF sampling.

[ ] See if point light with highly glossy materials still produce many fireflies
[x] Update OpaqueMicrofacet
[x] Update TranslucentMicrofacet
[x] Update LbLayeredSurface
[ ] Unit test for NDF and VNDF sampling, perhaps chi-squared