diff options
Diffstat (limited to 'intern/cycles/kernel/closure')
| -rw-r--r-- | intern/cycles/kernel/closure/bsdf.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/intern/cycles/kernel/closure/bsdf.h b/intern/cycles/kernel/closure/bsdf.h index e4573024e85..6f0bdb3fa38 100644 --- a/intern/cycles/kernel/closure/bsdf.h +++ b/intern/cycles/kernel/closure/bsdf.h @@ -38,7 +38,7 @@ CCL_NAMESPACE_BEGIN /* Returns the square of the roughness of the closure if it has roughness, * 0 for singular closures and 1 otherwise. */ -ccl_device_inline float bsdf_get_roughness_sqr(const ShaderClosure *sc) +ccl_device_inline float bsdf_get_roughness_squared(const ShaderClosure *sc) { if(CLOSURE_IS_BSDF_SINGULAR(sc->type)) { return 0.0f; @@ -173,6 +173,17 @@ ccl_device_forceinline int bsdf_sample(KernelGlobals *kg, break; } + /* Test if BSDF sample should be treated as transparent for background. */ + if(label & LABEL_TRANSMIT) { + float threshold_squared = kernel_data.background.transparent_roughness_squared_threshold; + + if(threshold_squared >= 0.0f) { + if(bsdf_get_roughness_squared(sc) <= threshold_squared) { + label |= LABEL_TRANSMIT_TRANSPARENT; + } + } + } + return label; } |