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Fixed bug in GTR and GGX BRDFs.

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This commit is contained in:
Nathan Vegdahl 2018-08-09 14:43:32 -07:00
parent c002514ddf
commit ab637e3bd5
1 changed files with 2 additions and 2 deletions
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4
src/shading/surface_closure.rs
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@ -572,7 +572,7 @@ impl SurfaceClosure for GTRClosure {
return (col_f, 0.0); return (col_f, 0.0);
} else { } else {
// Calculate D - Distribution // Calculate D - Distribution
let dist = self.dist(nh, self.roughness); let dist = self.dist(nh, self.roughness) / na;
// Calculate G1 - Geometric microfacet shadowing // Calculate G1 - Geometric microfacet shadowing
let g1 = { let g1 = {
@ -833,7 +833,7 @@ impl SurfaceClosure for GGXClosure {
return (col_f, 0.0); return (col_f, 0.0);
} else { } else {
// Calculate D - Distribution // Calculate D - Distribution
let dist = Self::ggx_d(nh, self.roughness); let dist = Self::ggx_d(nh, self.roughness) / na;
// Calculate G1 and G2- Geometric microfacet shadowing // Calculate G1 and G2- Geometric microfacet shadowing
let g1 = Self::ggx_g(ha, na, self.roughness); let g1 = Self::ggx_g(ha, na, self.roughness);