forked from bartvdbraak/blender
Fix T50698: Cycles baking artifacts with transparent surfaces.
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15f1072ee2
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@ -54,7 +54,8 @@ ccl_device_inline void compute_light_pass(KernelGlobals *kg,
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float rbsdf = path_state_rng_1D(kg, &rng, &state, PRNG_BSDF);
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shader_eval_surface(kg, sd, &rng, &state, rbsdf, state.flag, SHADER_CONTEXT_MAIN);
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/* TODO, disable the closures we won't need */
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/* TODO, disable more closures we don't need besides transparent */
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shader_bsdf_disable_transparency(kg, sd);
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#ifdef __BRANCHED_PATH__
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if(!kernel_data.integrator.branched) {
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@ -685,6 +685,18 @@ ccl_device float3 shader_bsdf_transparency(KernelGlobals *kg, ShaderData *sd)
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return eval;
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}
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ccl_device void shader_bsdf_disable_transparency(KernelGlobals *kg, ShaderData *sd)
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{
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for(int i = 0; i < ccl_fetch(sd, num_closure); i++) {
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ShaderClosure *sc = ccl_fetch_array(sd, closure, i);
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if(sc->type == CLOSURE_BSDF_TRANSPARENT_ID) {
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sc->sample_weight = 0.0f;
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sc->weight = make_float3(0.0f, 0.0f, 0.0f);
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}
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}
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}
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ccl_device float3 shader_bsdf_alpha(KernelGlobals *kg, ShaderData *sd)
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{
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float3 alpha = make_float3(1.0f, 1.0f, 1.0f) - shader_bsdf_transparency(kg, sd);
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