diff options
Diffstat (limited to 'intern/cycles/kernel/osl/osl_closures.cpp')
| -rw-r--r-- | intern/cycles/kernel/osl/osl_closures.cpp | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/osl_closures.cpp b/intern/cycles/kernel/osl/osl_closures.cpp index 95b8cea0922..02b1491489c 100644 --- a/intern/cycles/kernel/osl/osl_closures.cpp +++ b/intern/cycles/kernel/osl/osl_closures.cpp @@ -44,11 +44,13 @@ #include "kernel_compat_cpu.h" #include "kernel_globals.h" #include "kernel_montecarlo.h" +#include "kernel_random.h" #include "closure/bsdf_util.h" #include "closure/bsdf_ashikhmin_velvet.h" #include "closure/bsdf_diffuse.h" #include "closure/bsdf_microfacet.h" +#include "closure/bsdf_microfacet_multi.h" #include "closure/bsdf_oren_nayar.h" #include "closure/bsdf_reflection.h" #include "closure/bsdf_refraction.h" @@ -205,6 +207,12 @@ void OSLShader::register_closures(OSLShadingSystem *ss_) bsdf_microfacet_ggx_aniso_params(), bsdf_microfacet_ggx_aniso_prepare); register_closure(ss, "microfacet_ggx_refraction", id++, bsdf_microfacet_ggx_refraction_params(), bsdf_microfacet_ggx_refraction_prepare); + register_closure(ss, "microfacet_multi_ggx", id++, + closure_bsdf_microfacet_multi_ggx_params(), closure_bsdf_microfacet_multi_ggx_prepare); + register_closure(ss, "microfacet_multi_ggx_glass", id++, + closure_bsdf_microfacet_multi_ggx_glass_params(), closure_bsdf_microfacet_multi_ggx_glass_prepare); + register_closure(ss, "microfacet_multi_ggx_aniso", id++, + closure_bsdf_microfacet_multi_ggx_aniso_params(), closure_bsdf_microfacet_multi_ggx_aniso_prepare); register_closure(ss, "microfacet_beckmann", id++, bsdf_microfacet_beckmann_params(), bsdf_microfacet_beckmann_prepare); register_closure(ss, "microfacet_beckmann_aniso", id++, @@ -250,5 +258,127 @@ void OSLShader::register_closures(OSLShadingSystem *ss_) volume_absorption_params(), volume_absorption_prepare); } +/* Multiscattering GGX closures */ + +class MicrofacetMultiClosure : public CBSDFClosure { +public: + float3 color; + + /* Technically, the MultiGGX Glass closure may also transmit. + * However, since this is set statically and only used for caustic flags, this is probably as good as it gets. */ + MicrofacetMultiClosure() : CBSDFClosure(LABEL_GLOSSY|LABEL_REFLECT) + { + } + + void setup() + { + sc.prim = NULL; + sc.custom1 = color.x; + sc.custom2 = color.y; + sc.custom3 = color.z; + } + + void blur(float roughness) + { + } + + float3 eval_reflect(const float3 &omega_out, const float3 &omega_in, float& pdf) const + { + pdf = 0.0f; + return make_float3(0.0f, 0.0f, 0.0f); + } + + float3 eval_transmit(const float3 &omega_out, const float3 &omega_in, float& pdf) const + { + pdf = 0.0f; + return make_float3(0.0f, 0.0f, 0.0f); + } + + int sample(const float3 &Ng, + const float3 &omega_out, const float3 &domega_out_dx, const float3 &domega_out_dy, + float randu, float randv, + float3 &omega_in, float3 &domega_in_dx, float3 &domega_in_dy, + float &pdf, float3 &eval) const + { + pdf = 0; + return LABEL_NONE; + } +}; + +class MicrofacetMultiGGXClosure : public MicrofacetMultiClosure { +public: + MicrofacetMultiGGXClosure() : MicrofacetMultiClosure() {} + + void setup() + { + MicrofacetMultiClosure::setup(); + m_shaderdata_flag = bsdf_microfacet_multi_ggx_setup(&sc); + } +}; + +ClosureParam *closure_bsdf_microfacet_multi_ggx_params() +{ + static ClosureParam params[] = { + CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXClosure, sc.N), + CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXClosure, sc.data0), + CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXClosure, color), + CLOSURE_STRING_KEYPARAM(MicrofacetMultiGGXClosure, label, "label"), + CLOSURE_FINISH_PARAM(MicrofacetMultiGGXClosure) + }; + return params; +} +CCLOSURE_PREPARE(closure_bsdf_microfacet_multi_ggx_prepare, MicrofacetMultiGGXClosure); + +class MicrofacetMultiGGXAnisoClosure : public MicrofacetMultiClosure { +public: + MicrofacetMultiGGXAnisoClosure() : MicrofacetMultiClosure() {} + + void setup() + { + MicrofacetMultiClosure::setup(); + m_shaderdata_flag = bsdf_microfacet_multi_ggx_aniso_setup(&sc); + } +}; + +ClosureParam *closure_bsdf_microfacet_multi_ggx_aniso_params() +{ + static ClosureParam params[] = { + CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXClosure, sc.N), + CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXClosure, sc.T), + CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXClosure, sc.data0), + CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXClosure, sc.data1), + CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXClosure, color), + CLOSURE_STRING_KEYPARAM(MicrofacetMultiGGXClosure, label, "label"), + CLOSURE_FINISH_PARAM(MicrofacetMultiGGXClosure) + }; + return params; +} +CCLOSURE_PREPARE(closure_bsdf_microfacet_multi_ggx_aniso_prepare, MicrofacetMultiGGXAnisoClosure); + +class MicrofacetMultiGGXGlassClosure : public MicrofacetMultiClosure { +public: + MicrofacetMultiGGXGlassClosure() : MicrofacetMultiClosure() {} + + void setup() + { + MicrofacetMultiClosure::setup(); + m_shaderdata_flag = bsdf_microfacet_multi_ggx_glass_setup(&sc); + } +}; + +ClosureParam *closure_bsdf_microfacet_multi_ggx_glass_params() +{ + static ClosureParam params[] = { + CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXClosure, sc.N), + CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXClosure, sc.data0), + CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXClosure, sc.data2), + CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXClosure, color), + CLOSURE_STRING_KEYPARAM(MicrofacetMultiGGXClosure, label, "label"), + CLOSURE_FINISH_PARAM(MicrofacetMultiGGXClosure) + }; + return params; +} +CCLOSURE_PREPARE(closure_bsdf_microfacet_multi_ggx_glass_prepare, MicrofacetMultiGGXGlassClosure); + CCL_NAMESPACE_END |