diff options
Diffstat (limited to 'intern/cycles/kernel/shaders/node_anisotropic_bsdf.osl')
| -rw-r--r-- | intern/cycles/kernel/shaders/node_anisotropic_bsdf.osl | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/intern/cycles/kernel/shaders/node_anisotropic_bsdf.osl b/intern/cycles/kernel/shaders/node_anisotropic_bsdf.osl index bef6d7e8809..21e28ece65d 100644 --- a/intern/cycles/kernel/shaders/node_anisotropic_bsdf.osl +++ b/intern/cycles/kernel/shaders/node_anisotropic_bsdf.osl @@ -33,27 +33,28 @@ shader node_anisotropic_bsdf( T = rotate(T, Rotation * M_2PI, point(0.0, 0.0, 0.0), Normal); /* compute roughness */ - float RoughnessU, RoughnessV; + float roughness = Roughness * Roughness; + float roughness_u, roughness_v; float aniso = clamp(Anisotropy, -0.99, 0.99); if (aniso < 0.0) { - RoughnessU = Roughness / (1.0 + aniso); - RoughnessV = Roughness * (1.0 + aniso); + roughness_u = roughness / (1.0 + aniso); + roughness_v = roughness * (1.0 + aniso); } else { - RoughnessU = Roughness * (1.0 - aniso); - RoughnessV = Roughness / (1.0 - aniso); + roughness_u = roughness * (1.0 - aniso); + roughness_v = roughness / (1.0 - aniso); } if (distribution == "sharp") BSDF = Color * reflection(Normal); else if (distribution == "beckmann") - BSDF = Color * microfacet_beckmann_aniso(Normal, T, RoughnessU, RoughnessV); + BSDF = Color * microfacet_beckmann_aniso(Normal, T, roughness_u, roughness_v); else if (distribution == "GGX") - BSDF = Color * microfacet_ggx_aniso(Normal, T, RoughnessU, RoughnessV); + BSDF = Color * microfacet_ggx_aniso(Normal, T, roughness_u, roughness_v); else if (distribution == "Multiscatter GGX") - BSDF = Color * microfacet_multi_ggx_aniso(Normal, T, RoughnessU, RoughnessV, Color); + BSDF = Color * microfacet_multi_ggx_aniso(Normal, T, roughness_u, roughness_v, Color); else - BSDF = Color * ashikhmin_shirley(Normal, T, RoughnessU, RoughnessV); + BSDF = Color * ashikhmin_shirley(Normal, T, roughness_u, roughness_v); } |