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Code refactor: store RGB BSSRDF in a single closure.

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Previously we stored each color channel in a single closure, which was
convenient for sampling a closure and channel together. But this doesn't
work so well for algorithms where we want to render multiple color
channels together.
This commit is contained in:
Brecht Van Lommel
2018-01-26 14:09:55 +01:00
parent 47a3bbcc34
commit ce4915cddb
6 changed files with 93 additions and 140 deletions
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32
intern/cycles/kernel/osl/osl_bssrdf.cpp
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@@ -72,36 +72,12 @@ public:
float texture_blur = params.texture_blur;
/* create one closure per color channel */
Bssrdf *bssrdf = bssrdf_alloc(sd, make_float3(weight.x, 0.0f, 0.0f));
Bssrdf *bssrdf = bssrdf_alloc(sd, weight);
if(bssrdf) {
bssrdf->sample_weight = sample_weight;
bssrdf->radius = radius.x;
bssrdf->sample_weight = sample_weight * 3.0f;
bssrdf->radius = radius;
bssrdf->albedo = albedo;
bssrdf->texture_blur = texture_blur;
bssrdf->albedo = albedo.x;
bssrdf->sharpness = sharpness;
bssrdf->N = params.N;
bssrdf->roughness = params.roughness;
sd->flag |= bssrdf_setup(bssrdf, (ClosureType)type);
}
bssrdf = bssrdf_alloc(sd, make_float3(0.0f, weight.y, 0.0f));
if(bssrdf) {
bssrdf->sample_weight = sample_weight;
bssrdf->radius = radius.y;
bssrdf->texture_blur = texture_blur;
bssrdf->albedo = albedo.y;
bssrdf->sharpness = sharpness;
bssrdf->N = params.N;
bssrdf->roughness = params.roughness;
sd->flag |= bssrdf_setup(bssrdf, (ClosureType)type);
}
bssrdf = bssrdf_alloc(sd, make_float3(0.0f, 0.0f, weight.z));
if(bssrdf) {
bssrdf->sample_weight = sample_weight;
bssrdf->radius = radius.z;
bssrdf->texture_blur = texture_blur;
bssrdf->albedo = albedo.z;
bssrdf->sharpness = sharpness;
bssrdf->N = params.N;
bssrdf->roughness = params.roughness;