diff options
Diffstat (limited to 'intern/cycles/kernel/osl/closures.cpp')
| -rw-r--r-- | intern/cycles/kernel/osl/closures.cpp | 1156 |
1 files changed, 234 insertions, 922 deletions
diff --git a/intern/cycles/kernel/osl/closures.cpp b/intern/cycles/kernel/osl/closures.cpp index e80b7aa1fd5..d56e0551a91 100644 --- a/intern/cycles/kernel/osl/closures.cpp +++ b/intern/cycles/kernel/osl/closures.cpp @@ -9,992 +9,304 @@ #include <OSL/genclosure.h> #include <OSL/oslclosure.h> -#include "kernel/osl/closures.h" -#include "kernel/osl/shader.h" +#include "kernel/types.h" + +#include "kernel/osl/globals.h" +#include "kernel/osl/services.h" #include "util/math.h" #include "util/param.h" -// clang-format off #include "kernel/device/cpu/compat.h" #include "kernel/device/cpu/globals.h" -#include "kernel/types.h" - -#include "kernel/closure/alloc.h" -#include "kernel/closure/bsdf_util.h" -#include "kernel/closure/bsdf_ashikhmin_velvet.h" -#include "kernel/closure/bsdf_diffuse.h" -#include "kernel/closure/bsdf_microfacet.h" -#include "kernel/closure/bsdf_microfacet_beckmann.h" -#include "kernel/closure/bsdf_microfacet_glass.h" -#include "kernel/closure/bsdf_oren_nayar.h" -#include "kernel/closure/bsdf_reflection.h" -#include "kernel/closure/bsdf_refraction.h" -#include "kernel/closure/bsdf_transparent.h" -#include "kernel/closure/bsdf_ashikhmin_shirley.h" -#include "kernel/closure/bsdf_toon.h" -#include "kernel/closure/bsdf_hair.h" -#include "kernel/closure/bsdf_hair_principled.h" -#include "kernel/closure/bsdf_principled_diffuse.h" -#include "kernel/closure/bsdf_principled_sheen.h" -#include "kernel/closure/volume.h" -// clang-format on - -CCL_NAMESPACE_BEGIN - -using namespace OSL; - -/* BSDF class definitions */ - -BSDF_CLOSURE_CLASS_BEGIN(Diffuse, diffuse, DiffuseBsdf, LABEL_DIFFUSE) - BSDF_CLOSURE_FLOAT3_PARAM(DiffuseClosure, params.N) -BSDF_CLOSURE_CLASS_END(Diffuse, diffuse) - -BSDF_CLOSURE_CLASS_BEGIN(Translucent, translucent, DiffuseBsdf, LABEL_DIFFUSE) - BSDF_CLOSURE_FLOAT3_PARAM(TranslucentClosure, params.N) -BSDF_CLOSURE_CLASS_END(Translucent, translucent) - -BSDF_CLOSURE_CLASS_BEGIN(OrenNayar, oren_nayar, OrenNayarBsdf, LABEL_DIFFUSE) - BSDF_CLOSURE_FLOAT3_PARAM(OrenNayarClosure, params.N) - BSDF_CLOSURE_FLOAT_PARAM(OrenNayarClosure, params.roughness) -BSDF_CLOSURE_CLASS_END(OrenNayar, oren_nayar) - -BSDF_CLOSURE_CLASS_BEGIN(Reflection, reflection, MicrofacetBsdf, LABEL_SINGULAR) - BSDF_CLOSURE_FLOAT3_PARAM(ReflectionClosure, params.N) -BSDF_CLOSURE_CLASS_END(Reflection, reflection) - -BSDF_CLOSURE_CLASS_BEGIN(Refraction, refraction, MicrofacetBsdf, LABEL_SINGULAR) - BSDF_CLOSURE_FLOAT3_PARAM(RefractionClosure, params.N) - BSDF_CLOSURE_FLOAT_PARAM(RefractionClosure, params.ior) -BSDF_CLOSURE_CLASS_END(Refraction, refraction) - -BSDF_CLOSURE_CLASS_BEGIN(AshikhminVelvet, ashikhmin_velvet, VelvetBsdf, LABEL_DIFFUSE) - BSDF_CLOSURE_FLOAT3_PARAM(AshikhminVelvetClosure, params.N) - BSDF_CLOSURE_FLOAT_PARAM(AshikhminVelvetClosure, params.sigma) -BSDF_CLOSURE_CLASS_END(AshikhminVelvet, ashikhmin_velvet) - -BSDF_CLOSURE_CLASS_BEGIN(AshikhminShirley, - ashikhmin_shirley, - MicrofacetBsdf, - LABEL_GLOSSY | LABEL_REFLECT) - BSDF_CLOSURE_FLOAT3_PARAM(AshikhminShirleyClosure, params.N) - BSDF_CLOSURE_FLOAT3_PARAM(AshikhminShirleyClosure, params.T) - BSDF_CLOSURE_FLOAT_PARAM(AshikhminShirleyClosure, params.alpha_x) - BSDF_CLOSURE_FLOAT_PARAM(AshikhminShirleyClosure, params.alpha_y) -BSDF_CLOSURE_CLASS_END(AshikhminShirley, ashikhmin_shirley) - -BSDF_CLOSURE_CLASS_BEGIN(DiffuseToon, diffuse_toon, ToonBsdf, LABEL_DIFFUSE) - BSDF_CLOSURE_FLOAT3_PARAM(DiffuseToonClosure, params.N) - BSDF_CLOSURE_FLOAT_PARAM(DiffuseToonClosure, params.size) - BSDF_CLOSURE_FLOAT_PARAM(DiffuseToonClosure, params.smooth) -BSDF_CLOSURE_CLASS_END(DiffuseToon, diffuse_toon) - -BSDF_CLOSURE_CLASS_BEGIN(GlossyToon, glossy_toon, ToonBsdf, LABEL_GLOSSY) - BSDF_CLOSURE_FLOAT3_PARAM(GlossyToonClosure, params.N) - BSDF_CLOSURE_FLOAT_PARAM(GlossyToonClosure, params.size) - BSDF_CLOSURE_FLOAT_PARAM(GlossyToonClosure, params.smooth) -BSDF_CLOSURE_CLASS_END(GlossyToon, glossy_toon) - -BSDF_CLOSURE_CLASS_BEGIN(MicrofacetGGXIsotropic, - microfacet_ggx_isotropic, - MicrofacetBsdf, - LABEL_GLOSSY | LABEL_REFLECT) - BSDF_CLOSURE_FLOAT3_PARAM(MicrofacetGGXIsotropicClosure, params.N) - BSDF_CLOSURE_FLOAT_PARAM(MicrofacetGGXIsotropicClosure, params.alpha_x) -BSDF_CLOSURE_CLASS_END(MicrofacetGGXIsotropic, microfacet_ggx_isotropic) - -BSDF_CLOSURE_CLASS_BEGIN(MicrofacetGGX, - microfacet_ggx, - MicrofacetBsdf, - LABEL_GLOSSY | LABEL_REFLECT) - BSDF_CLOSURE_FLOAT3_PARAM(MicrofacetGGXClosure, params.N) - BSDF_CLOSURE_FLOAT3_PARAM(MicrofacetGGXClosure, params.T) - BSDF_CLOSURE_FLOAT_PARAM(MicrofacetGGXClosure, params.alpha_x) - BSDF_CLOSURE_FLOAT_PARAM(MicrofacetGGXClosure, params.alpha_y) -BSDF_CLOSURE_CLASS_END(MicrofacetGGX, microfacet_ggx) - -BSDF_CLOSURE_CLASS_BEGIN(MicrofacetBeckmannIsotropic, - microfacet_beckmann_isotropic, - MicrofacetBsdf, - LABEL_GLOSSY | LABEL_REFLECT) - BSDF_CLOSURE_FLOAT3_PARAM(MicrofacetBeckmannIsotropicClosure, params.N) - BSDF_CLOSURE_FLOAT_PARAM(MicrofacetBeckmannIsotropicClosure, params.alpha_x) -BSDF_CLOSURE_CLASS_END(MicrofacetBeckmannIsotropic, microfacet_beckmann_isotropic) - -BSDF_CLOSURE_CLASS_BEGIN(MicrofacetBeckmann, - microfacet_beckmann, - MicrofacetBsdf, - LABEL_GLOSSY | LABEL_REFLECT) - BSDF_CLOSURE_FLOAT3_PARAM(MicrofacetBeckmannClosure, params.N) - BSDF_CLOSURE_FLOAT3_PARAM(MicrofacetBeckmannClosure, params.T) - BSDF_CLOSURE_FLOAT_PARAM(MicrofacetBeckmannClosure, params.alpha_x) - BSDF_CLOSURE_FLOAT_PARAM(MicrofacetBeckmannClosure, params.alpha_y) -BSDF_CLOSURE_CLASS_END(MicrofacetBeckmann, microfacet_beckmann) - -BSDF_CLOSURE_CLASS_BEGIN(MicrofacetGGXRefraction, - microfacet_ggx_refraction, - MicrofacetBsdf, - LABEL_GLOSSY | LABEL_TRANSMIT) - BSDF_CLOSURE_FLOAT3_PARAM(MicrofacetGGXRefractionClosure, params.N) - BSDF_CLOSURE_FLOAT_PARAM(MicrofacetGGXRefractionClosure, params.alpha_x) - BSDF_CLOSURE_FLOAT_PARAM(MicrofacetGGXRefractionClosure, params.ior) -BSDF_CLOSURE_CLASS_END(MicrofacetGGXRefraction, microfacet_ggx_refraction) - -BSDF_CLOSURE_CLASS_BEGIN(MicrofacetBeckmannRefraction, - microfacet_beckmann_refraction, - MicrofacetBsdf, - LABEL_GLOSSY | LABEL_TRANSMIT) - BSDF_CLOSURE_FLOAT3_PARAM(MicrofacetBeckmannRefractionClosure, params.N) - BSDF_CLOSURE_FLOAT_PARAM(MicrofacetBeckmannRefractionClosure, params.alpha_x) - BSDF_CLOSURE_FLOAT_PARAM(MicrofacetBeckmannRefractionClosure, params.ior) -BSDF_CLOSURE_CLASS_END(MicrofacetBeckmannRefraction, microfacet_beckmann_refraction) - -BSDF_CLOSURE_CLASS_BEGIN(HairReflection, hair_reflection, HairBsdf, LABEL_GLOSSY) - BSDF_CLOSURE_FLOAT3_PARAM(HairReflectionClosure, params.N) - BSDF_CLOSURE_FLOAT_PARAM(HairReflectionClosure, params.roughness1) - BSDF_CLOSURE_FLOAT_PARAM(HairReflectionClosure, params.roughness2) - BSDF_CLOSURE_FLOAT3_PARAM(HairReflectionClosure, params.T) - BSDF_CLOSURE_FLOAT_PARAM(HairReflectionClosure, params.offset) -BSDF_CLOSURE_CLASS_END(HairReflection, hair_reflection) - -BSDF_CLOSURE_CLASS_BEGIN(HairTransmission, hair_transmission, HairBsdf, LABEL_GLOSSY) - BSDF_CLOSURE_FLOAT3_PARAM(HairTransmissionClosure, params.N) - BSDF_CLOSURE_FLOAT_PARAM(HairTransmissionClosure, params.roughness1) - BSDF_CLOSURE_FLOAT_PARAM(HairTransmissionClosure, params.roughness2) - BSDF_CLOSURE_FLOAT3_PARAM(HairReflectionClosure, params.T) - BSDF_CLOSURE_FLOAT_PARAM(HairReflectionClosure, params.offset) -BSDF_CLOSURE_CLASS_END(HairTransmission, hair_transmission) - -BSDF_CLOSURE_CLASS_BEGIN(PrincipledDiffuse, - principled_diffuse, - PrincipledDiffuseBsdf, - LABEL_DIFFUSE) - BSDF_CLOSURE_FLOAT3_PARAM(PrincipledDiffuseClosure, params.N) - BSDF_CLOSURE_FLOAT_PARAM(PrincipledDiffuseClosure, params.roughness) -BSDF_CLOSURE_CLASS_END(PrincipledDiffuse, principled_diffuse) - -class PrincipledSheenClosure : public CBSDFClosure { - public: - PrincipledSheenBsdf params; - - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - if (!skip(sd, path_flag, LABEL_DIFFUSE)) { - params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N); - - PrincipledSheenBsdf *bsdf = (PrincipledSheenBsdf *)bsdf_alloc_osl( - sd, sizeof(PrincipledSheenBsdf), weight, ¶ms); - sd->flag |= (bsdf) ? bsdf_principled_sheen_setup(sd, bsdf) : 0; - } - } -}; +#include "kernel/geom/object.h" +#include "kernel/util/differential.h" -static ClosureParam *bsdf_principled_sheen_params() -{ - static ClosureParam params[] = {CLOSURE_FLOAT3_PARAM(PrincipledSheenClosure, params.N), - CLOSURE_STRING_KEYPARAM(PrincipledSheenClosure, label, "label"), - CLOSURE_FINISH_PARAM(PrincipledSheenClosure)}; - return params; -} +#include "kernel/osl/osl.h" -CCLOSURE_PREPARE_STATIC(closure_bsdf_principled_sheen_prepare, PrincipledSheenClosure) +#include "kernel/osl/closures_setup.h" -/* PRINCIPLED HAIR BSDF */ -class PrincipledHairClosure : public CBSDFClosure { - public: - PrincipledHairBSDF params; +#define TO_VEC3(v) OSL::Vec3(v.x, v.y, v.z) +#define TO_FLOAT3(v) make_float3(v[0], v[1], v[2]) - PrincipledHairBSDF *alloc(ShaderData *sd, uint32_t path_flag, float3 weight) - { - PrincipledHairBSDF *bsdf = (PrincipledHairBSDF *)bsdf_alloc_osl( - sd, sizeof(PrincipledHairBSDF), weight, ¶ms); - if (!bsdf) { - return NULL; - } +CCL_NAMESPACE_BEGIN - PrincipledHairExtra *extra = (PrincipledHairExtra *)closure_alloc_extra( - sd, sizeof(PrincipledHairExtra)); - if (!extra) { - return NULL; - } +/* Registration */ - bsdf->extra = extra; - return bsdf; +#define OSL_CLOSURE_STRUCT_BEGIN(Upper, lower) \ + static OSL::ClosureParam *osl_closure_##lower##_params() \ + { \ + static OSL::ClosureParam params[] = { +#define OSL_CLOSURE_STRUCT_END(Upper, lower) \ + CLOSURE_STRING_KEYPARAM(Upper##Closure, label, "label"), CLOSURE_FINISH_PARAM(Upper##Closure) \ + } \ + ; \ + return params; \ } +#define OSL_CLOSURE_STRUCT_MEMBER(Upper, TYPE, type, name, key) \ + CLOSURE_##TYPE##_KEYPARAM(Upper##Closure, name, key), +#define OSL_CLOSURE_STRUCT_ARRAY_MEMBER(Upper, TYPE, type, name, key, size) \ + CLOSURE_##TYPE##_ARRAY_PARAM(Upper##Closure, name, size), - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - if (!skip(sd, path_flag, LABEL_GLOSSY)) { - params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N); - - PrincipledHairBSDF *bsdf = (PrincipledHairBSDF *)alloc(sd, path_flag, weight); - if (!bsdf) { - return; - } +#include "closures_template.h" - sd->flag |= (bsdf) ? bsdf_principled_hair_setup(sd, bsdf) : 0; - } - } -}; - -static ClosureParam *closure_bsdf_principled_hair_params() +void OSLRenderServices::register_closures(OSL::ShadingSystem *ss) { - static ClosureParam params[] = {CLOSURE_FLOAT3_PARAM(PrincipledHairClosure, params.N), - CLOSURE_FLOAT3_PARAM(PrincipledHairClosure, params.sigma), - CLOSURE_FLOAT_PARAM(PrincipledHairClosure, params.v), - CLOSURE_FLOAT_PARAM(PrincipledHairClosure, params.s), - CLOSURE_FLOAT_PARAM(PrincipledHairClosure, params.m0_roughness), - CLOSURE_FLOAT_PARAM(PrincipledHairClosure, params.alpha), - CLOSURE_FLOAT_PARAM(PrincipledHairClosure, params.eta), - CLOSURE_STRING_KEYPARAM(PrincipledHairClosure, label, "label"), - CLOSURE_FINISH_PARAM(PrincipledHairClosure)}; - - return params; -} - -CCLOSURE_PREPARE(closure_bsdf_principled_hair_prepare, PrincipledHairClosure) +#define OSL_CLOSURE_STRUCT_BEGIN(Upper, lower) \ + ss->register_closure( \ + #lower, OSL_CLOSURE_##Upper##_ID, osl_closure_##lower##_params(), nullptr, nullptr); -/* DISNEY PRINCIPLED CLEARCOAT */ -class PrincipledClearcoatClosure : public CBSDFClosure { - public: - MicrofacetBsdf params; - float clearcoat, clearcoat_roughness; - - MicrofacetBsdf *alloc(ShaderData *sd, uint32_t path_flag, float3 weight) - { - MicrofacetBsdf *bsdf = (MicrofacetBsdf *)bsdf_alloc_osl( - sd, sizeof(MicrofacetBsdf), 0.25f * clearcoat * weight, ¶ms); - if (!bsdf) { - return NULL; - } - - bsdf->T = make_float3(0.0f, 0.0f, 0.0f); - bsdf->extra = NULL; - bsdf->ior = 1.5f; - bsdf->alpha_x = clearcoat_roughness; - bsdf->alpha_y = clearcoat_roughness; - return bsdf; - } - - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N); - MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight); - if (!bsdf) { - return; - } - - sd->flag |= bsdf_microfacet_ggx_clearcoat_setup(bsdf, sd); - } -}; - -ClosureParam *closure_bsdf_principled_clearcoat_params() -{ - static ClosureParam params[] = { - CLOSURE_FLOAT3_PARAM(PrincipledClearcoatClosure, params.N), - CLOSURE_FLOAT_PARAM(PrincipledClearcoatClosure, clearcoat), - CLOSURE_FLOAT_PARAM(PrincipledClearcoatClosure, clearcoat_roughness), - CLOSURE_STRING_KEYPARAM(PrincipledClearcoatClosure, label, "label"), - CLOSURE_FINISH_PARAM(PrincipledClearcoatClosure)}; - return params; +#include "closures_template.h" } -CCLOSURE_PREPARE(closure_bsdf_principled_clearcoat_prepare, PrincipledClearcoatClosure) -/* Registration */ - -static void register_closure(OSL::ShadingSystem *ss, - const char *name, - int id, - OSL::ClosureParam *params, - OSL::PrepareClosureFunc prepare) -{ - /* optimization: it's possible to not use a prepare function at all and - * only initialize the actual class when accessing the closure component - * data, but then we need to map the id to the class somehow */ -#if OSL_LIBRARY_VERSION_CODE >= 10900 - ss->register_closure(name, id, params, prepare, NULL); -#else - ss->register_closure(name, id, params, prepare, NULL, 16); -#endif -} +/* Globals */ -void OSLShader::register_closures(OSLShadingSystem *ss_) +static void shaderdata_to_shaderglobals(const KernelGlobalsCPU *kg, + ShaderData *sd, + const void *state, + uint32_t path_flag, + OSLThreadData *tdata) { - OSL::ShadingSystem *ss = (OSL::ShadingSystem *)ss_; - int id = 0; - - register_closure(ss, "diffuse", id++, bsdf_diffuse_params(), bsdf_diffuse_prepare); - register_closure(ss, "oren_nayar", id++, bsdf_oren_nayar_params(), bsdf_oren_nayar_prepare); - register_closure(ss, "translucent", id++, bsdf_translucent_params(), bsdf_translucent_prepare); - register_closure(ss, "reflection", id++, bsdf_reflection_params(), bsdf_reflection_prepare); - register_closure(ss, "refraction", id++, bsdf_refraction_params(), bsdf_refraction_prepare); - register_closure(ss, - "transparent", - id++, - closure_bsdf_transparent_params(), - closure_bsdf_transparent_prepare); - - register_closure( - ss, "microfacet", id++, closure_bsdf_microfacet_params(), closure_bsdf_microfacet_prepare); - register_closure(ss, - "microfacet_ggx", - id++, - bsdf_microfacet_ggx_isotropic_params(), - bsdf_microfacet_ggx_isotropic_prepare); - register_closure( - ss, "microfacet_ggx_aniso", id++, bsdf_microfacet_ggx_params(), bsdf_microfacet_ggx_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_ggx_fresnel", - id++, - closure_bsdf_microfacet_ggx_fresnel_params(), - closure_bsdf_microfacet_ggx_fresnel_prepare); - register_closure(ss, - "microfacet_ggx_aniso_fresnel", - id++, - closure_bsdf_microfacet_ggx_aniso_fresnel_params(), - closure_bsdf_microfacet_ggx_aniso_fresnel_prepare); - register_closure(ss, - "microfacet_multi_ggx_fresnel", - id++, - closure_bsdf_microfacet_multi_ggx_fresnel_params(), - closure_bsdf_microfacet_multi_ggx_fresnel_prepare); - register_closure(ss, - "microfacet_multi_ggx_glass_fresnel", - id++, - closure_bsdf_microfacet_multi_ggx_glass_fresnel_params(), - closure_bsdf_microfacet_multi_ggx_glass_fresnel_prepare); - register_closure(ss, - "microfacet_multi_ggx_aniso_fresnel", - id++, - closure_bsdf_microfacet_multi_ggx_aniso_fresnel_params(), - closure_bsdf_microfacet_multi_ggx_aniso_fresnel_prepare); - register_closure(ss, - "microfacet_beckmann", - id++, - bsdf_microfacet_beckmann_isotropic_params(), - bsdf_microfacet_beckmann_isotropic_prepare); - register_closure(ss, - "microfacet_beckmann_aniso", - id++, - bsdf_microfacet_beckmann_params(), - bsdf_microfacet_beckmann_prepare); - register_closure(ss, - "microfacet_beckmann_refraction", - id++, - bsdf_microfacet_beckmann_refraction_params(), - bsdf_microfacet_beckmann_refraction_prepare); - register_closure(ss, - "ashikhmin_shirley", - id++, - bsdf_ashikhmin_shirley_params(), - bsdf_ashikhmin_shirley_prepare); - register_closure( - ss, "ashikhmin_velvet", id++, bsdf_ashikhmin_velvet_params(), bsdf_ashikhmin_velvet_prepare); - register_closure( - ss, "diffuse_toon", id++, bsdf_diffuse_toon_params(), bsdf_diffuse_toon_prepare); - register_closure(ss, "glossy_toon", id++, bsdf_glossy_toon_params(), bsdf_glossy_toon_prepare); - register_closure(ss, - "principled_diffuse", - id++, - bsdf_principled_diffuse_params(), - bsdf_principled_diffuse_prepare); - register_closure(ss, - "principled_sheen", - id++, - bsdf_principled_sheen_params(), - closure_bsdf_principled_sheen_prepare); - register_closure(ss, - "principled_clearcoat", - id++, - closure_bsdf_principled_clearcoat_params(), - closure_bsdf_principled_clearcoat_prepare); - - register_closure(ss, "emission", id++, closure_emission_params(), closure_emission_prepare); - register_closure( - ss, "background", id++, closure_background_params(), closure_background_prepare); - register_closure(ss, "holdout", id++, closure_holdout_params(), closure_holdout_prepare); - register_closure(ss, - "diffuse_ramp", - id++, - closure_bsdf_diffuse_ramp_params(), - closure_bsdf_diffuse_ramp_prepare); - register_closure( - ss, "phong_ramp", id++, closure_bsdf_phong_ramp_params(), closure_bsdf_phong_ramp_prepare); - register_closure(ss, "bssrdf", id++, closure_bssrdf_params(), closure_bssrdf_prepare); - - register_closure( - ss, "hair_reflection", id++, bsdf_hair_reflection_params(), bsdf_hair_reflection_prepare); - register_closure(ss, - "hair_transmission", - id++, - bsdf_hair_transmission_params(), - bsdf_hair_transmission_prepare); - - register_closure(ss, - "principled_hair", - id++, - closure_bsdf_principled_hair_params(), - closure_bsdf_principled_hair_prepare); - - register_closure(ss, - "henyey_greenstein", - id++, - closure_henyey_greenstein_params(), - closure_henyey_greenstein_prepare); - register_closure( - ss, "absorption", id++, closure_absorption_params(), closure_absorption_prepare); -} - -/* BSDF Closure */ - -bool CBSDFClosure::skip(const ShaderData *sd, uint32_t path_flag, int scattering) -{ - /* caustic options */ - if ((scattering & LABEL_GLOSSY) && (path_flag & PATH_RAY_DIFFUSE)) { - const KernelGlobalsCPU *kg = sd->osl_globals; - - if ((!kernel_data.integrator.caustics_reflective && (scattering & LABEL_REFLECT)) || - (!kernel_data.integrator.caustics_refractive && (scattering & LABEL_TRANSMIT))) { - return true; - } + OSL::ShaderGlobals *globals = &tdata->globals; + + const differential3 dP = differential_from_compact(sd->Ng, sd->dP); + const differential3 dI = differential_from_compact(sd->I, sd->dI); + + /* copy from shader data to shader globals */ + globals->P = TO_VEC3(sd->P); + globals->dPdx = TO_VEC3(dP.dx); + globals->dPdy = TO_VEC3(dP.dy); + globals->I = TO_VEC3(sd->I); + globals->dIdx = TO_VEC3(dI.dx); + globals->dIdy = TO_VEC3(dI.dy); + globals->N = TO_VEC3(sd->N); + globals->Ng = TO_VEC3(sd->Ng); + globals->u = sd->u; + globals->dudx = sd->du.dx; + globals->dudy = sd->du.dy; + globals->v = sd->v; + globals->dvdx = sd->dv.dx; + globals->dvdy = sd->dv.dy; + globals->dPdu = TO_VEC3(sd->dPdu); + globals->dPdv = TO_VEC3(sd->dPdv); + globals->surfacearea = 1.0f; + globals->time = sd->time; + + /* booleans */ + globals->raytype = path_flag; + globals->flipHandedness = 0; + globals->backfacing = (sd->flag & SD_BACKFACING); + + /* shader data to be used in services callbacks */ + globals->renderstate = sd; + + /* hacky, we leave it to services to fetch actual object matrix */ + globals->shader2common = sd; + globals->object2common = sd; + + /* must be set to NULL before execute */ + globals->Ci = NULL; + + /* clear trace data */ + tdata->tracedata.init = false; + + /* Used by render-services. */ + sd->osl_globals = kg; + if (path_flag & PATH_RAY_SHADOW) { + sd->osl_path_state = nullptr; + sd->osl_shadow_path_state = (const IntegratorShadowStateCPU *)state; } - - return false; -} - -/* Standard Microfacet Closure */ - -class MicrofacetClosure : public CBSDFClosure { - public: - MicrofacetBsdf params; - ustring distribution; - int refract; - - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - static ustring u_ggx("ggx"); - static ustring u_default("default"); - - const int label = (refract) ? LABEL_TRANSMIT : LABEL_REFLECT; - if (skip(sd, path_flag, LABEL_GLOSSY | label)) { - return; - } - - params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N); - - MicrofacetBsdf *bsdf = (MicrofacetBsdf *)bsdf_alloc_osl( - sd, sizeof(MicrofacetBsdf), weight, ¶ms); - - if (!bsdf) { - return; - } - - /* GGX */ - if (distribution == u_ggx || distribution == u_default) { - if (!refract) { - if (params.alpha_x == params.alpha_y) { - /* Isotropic */ - sd->flag |= bsdf_microfacet_ggx_isotropic_setup(bsdf); - } - else { - /* Anisotropic */ - sd->flag |= bsdf_microfacet_ggx_setup(bsdf); - } - } - else { - sd->flag |= bsdf_microfacet_ggx_refraction_setup(bsdf); - } - } - /* Beckmann */ - else { - if (!refract) { - if (params.alpha_x == params.alpha_y) { - /* Isotropic */ - sd->flag |= bsdf_microfacet_beckmann_isotropic_setup(bsdf); - } - else { - /* Anisotropic */ - sd->flag |= bsdf_microfacet_beckmann_setup(bsdf); - } - } - else { - sd->flag |= bsdf_microfacet_beckmann_refraction_setup(bsdf); - } - } + else { + sd->osl_path_state = (const IntegratorStateCPU *)state; + sd->osl_shadow_path_state = nullptr; } -}; - -ClosureParam *closure_bsdf_microfacet_params() -{ - static ClosureParam params[] = {CLOSURE_STRING_PARAM(MicrofacetClosure, distribution), - CLOSURE_FLOAT3_PARAM(MicrofacetClosure, params.N), - CLOSURE_FLOAT3_PARAM(MicrofacetClosure, params.T), - CLOSURE_FLOAT_PARAM(MicrofacetClosure, params.alpha_x), - CLOSURE_FLOAT_PARAM(MicrofacetClosure, params.alpha_y), - CLOSURE_FLOAT_PARAM(MicrofacetClosure, params.ior), - CLOSURE_INT_PARAM(MicrofacetClosure, refract), - CLOSURE_STRING_KEYPARAM(MicrofacetClosure, label, "label"), - CLOSURE_FINISH_PARAM(MicrofacetClosure)}; - - return params; } -CCLOSURE_PREPARE(closure_bsdf_microfacet_prepare, MicrofacetClosure) - -/* GGX closures with Fresnel */ - -class MicrofacetFresnelClosure : public CBSDFClosure { - public: - MicrofacetBsdf params; - float3 color; - float3 cspec0; - - MicrofacetBsdf *alloc(ShaderData *sd, uint32_t path_flag, float3 weight) - { - /* 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. */ - if (skip(sd, path_flag, LABEL_GLOSSY | LABEL_REFLECT)) { - return NULL; - } - MicrofacetBsdf *bsdf = (MicrofacetBsdf *)bsdf_alloc_osl( - sd, sizeof(MicrofacetBsdf), weight, ¶ms); - if (!bsdf) { - return NULL; +static void flatten_closure_tree(const KernelGlobalsCPU *kg, + ShaderData *sd, + uint32_t path_flag, + const OSL::ClosureColor *closure, + float3 weight = make_float3(1.0f, 1.0f, 1.0f)) +{ + /* OSL gives us a closure tree, we flatten it into arrays per + * closure type, for evaluation, sampling, etc later on. */ + + switch (closure->id) { + case OSL::ClosureColor::MUL: { + OSL::ClosureMul *mul = (OSL::ClosureMul *)closure; + flatten_closure_tree(kg, sd, path_flag, mul->closure, TO_FLOAT3(mul->weight) * weight); + break; } - - MicrofacetExtra *extra = (MicrofacetExtra *)closure_alloc_extra(sd, sizeof(MicrofacetExtra)); - if (!extra) { - return NULL; + case OSL::ClosureColor::ADD: { + OSL::ClosureAdd *add = (OSL::ClosureAdd *)closure; + flatten_closure_tree(kg, sd, path_flag, add->closureA, weight); + flatten_closure_tree(kg, sd, path_flag, add->closureB, weight); + break; } - - bsdf->extra = extra; - bsdf->extra->color = color; - bsdf->extra->cspec0 = cspec0; - return bsdf; +#define OSL_CLOSURE_STRUCT_BEGIN(Upper, lower) \ + case OSL_CLOSURE_##Upper##_ID: { \ + const OSL::ClosureComponent *comp = reinterpret_cast<const OSL::ClosureComponent *>(closure); \ + weight *= TO_FLOAT3(comp->w); \ + osl_closure_##lower##_setup( \ + kg, sd, path_flag, weight, reinterpret_cast<const Upper##Closure *>(comp + 1)); \ + break; \ } -}; - -class MicrofacetGGXFresnelClosure : public MicrofacetFresnelClosure { - public: - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N); - - MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight); - if (!bsdf) { - return; - } - - bsdf->T = make_float3(0.0f, 0.0f, 0.0f); - bsdf->alpha_y = bsdf->alpha_x; - sd->flag |= bsdf_microfacet_ggx_fresnel_setup(bsdf, sd); +#include "closures_template.h" + default: + break; } -}; - -ClosureParam *closure_bsdf_microfacet_ggx_fresnel_params() -{ - static ClosureParam params[] = { - CLOSURE_FLOAT3_PARAM(MicrofacetGGXFresnelClosure, params.N), - CLOSURE_FLOAT_PARAM(MicrofacetGGXFresnelClosure, params.alpha_x), - CLOSURE_FLOAT_PARAM(MicrofacetGGXFresnelClosure, params.ior), - CLOSURE_FLOAT3_PARAM(MicrofacetGGXFresnelClosure, color), - CLOSURE_FLOAT3_PARAM(MicrofacetGGXFresnelClosure, cspec0), - CLOSURE_STRING_KEYPARAM(MicrofacetGGXFresnelClosure, label, "label"), - CLOSURE_FINISH_PARAM(MicrofacetGGXFresnelClosure)}; - return params; } -CCLOSURE_PREPARE(closure_bsdf_microfacet_ggx_fresnel_prepare, MicrofacetGGXFresnelClosure); -class MicrofacetGGXAnisoFresnelClosure : public MicrofacetFresnelClosure { - public: - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N); - - MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight); - if (!bsdf) { - return; - } +/* Surface */ - sd->flag |= bsdf_microfacet_ggx_fresnel_setup(bsdf, sd); - } -}; - -ClosureParam *closure_bsdf_microfacet_ggx_aniso_fresnel_params() +void OSLShader::eval_surface(const KernelGlobalsCPU *kg, + const void *state, + ShaderData *sd, + uint32_t path_flag) { - static ClosureParam params[] = { - CLOSURE_FLOAT3_PARAM(MicrofacetGGXFresnelClosure, params.N), - CLOSURE_FLOAT3_PARAM(MicrofacetGGXFresnelClosure, params.T), - CLOSURE_FLOAT_PARAM(MicrofacetGGXFresnelClosure, params.alpha_x), - CLOSURE_FLOAT_PARAM(MicrofacetGGXFresnelClosure, params.alpha_y), - CLOSURE_FLOAT_PARAM(MicrofacetGGXFresnelClosure, params.ior), - CLOSURE_FLOAT3_PARAM(MicrofacetGGXFresnelClosure, color), - CLOSURE_FLOAT3_PARAM(MicrofacetGGXFresnelClosure, cspec0), - CLOSURE_STRING_KEYPARAM(MicrofacetGGXFresnelClosure, label, "label"), - CLOSURE_FINISH_PARAM(MicrofacetGGXFresnelClosure)}; - return params; -} -CCLOSURE_PREPARE(closure_bsdf_microfacet_ggx_aniso_fresnel_prepare, - MicrofacetGGXAnisoFresnelClosure); - -/* Multiscattering GGX closures */ - -class MicrofacetMultiClosure : public CBSDFClosure { - public: - MicrofacetBsdf params; - float3 color; - - MicrofacetBsdf *alloc(ShaderData *sd, uint32_t path_flag, float3 weight) - { - /* Technically, the MultiGGX closure may also transmit. However, - * since this is set statically and only used for caustic flags, this - * is probably as good as it gets. */ - if (skip(sd, path_flag, LABEL_GLOSSY | LABEL_REFLECT)) { - return NULL; - } - - MicrofacetBsdf *bsdf = (MicrofacetBsdf *)bsdf_alloc_osl( - sd, sizeof(MicrofacetBsdf), weight, ¶ms); - if (!bsdf) { - return NULL; + /* setup shader globals from shader data */ + OSLThreadData *tdata = kg->osl_tdata; + shaderdata_to_shaderglobals(kg, sd, state, path_flag, tdata); + + /* execute shader for this point */ + OSL::ShadingSystem *ss = (OSL::ShadingSystem *)kg->osl_ss; + OSL::ShaderGlobals *globals = &tdata->globals; + OSL::ShadingContext *octx = tdata->context; + int shader = sd->shader & SHADER_MASK; + + /* automatic bump shader */ + if (kg->osl->bump_state[shader]) { + /* save state */ + const float3 P = sd->P; + const float dP = sd->dP; + const OSL::Vec3 dPdx = globals->dPdx; + const OSL::Vec3 dPdy = globals->dPdy; + + /* set state as if undisplaced */ + if (sd->flag & SD_HAS_DISPLACEMENT) { + float data[9]; + bool found = kg->osl->services->get_attribute(sd, + true, + OSLRenderServices::u_empty, + TypeDesc::TypeVector, + OSLRenderServices::u_geom_undisplaced, + data); + (void)found; + assert(found); + + differential3 tmp_dP; + memcpy(&sd->P, data, sizeof(float) * 3); + memcpy(&tmp_dP.dx, data + 3, sizeof(float) * 3); + memcpy(&tmp_dP.dy, data + 6, sizeof(float) * 3); + + object_position_transform(kg, sd, &sd->P); + object_dir_transform(kg, sd, &tmp_dP.dx); + object_dir_transform(kg, sd, &tmp_dP.dy); + + sd->dP = differential_make_compact(tmp_dP); + + globals->P = TO_VEC3(sd->P); + globals->dPdx = TO_VEC3(tmp_dP.dx); + globals->dPdy = TO_VEC3(tmp_dP.dy); } - bsdf->extra = NULL; - return bsdf; - } -}; - -class MicrofacetMultiGGXClosure : public MicrofacetMultiClosure { - public: - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N); - - MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight); - if (!bsdf) { - return; - } + /* execute bump shader */ + ss->execute(octx, *(kg->osl->bump_state[shader]), *globals); - const KernelGlobalsCPU *kg = sd->osl_globals; + /* reset state */ + sd->P = P; + sd->dP = dP; - bsdf->ior = 0.0f; - bsdf->T = make_float3(0.0f, 0.0f, 0.0f); - bsdf->alpha_y = bsdf->alpha_x; - sd->flag |= bsdf_microfacet_multi_ggx_setup(kg, bsdf, sd, color); + globals->P = TO_VEC3(P); + globals->dPdx = TO_VEC3(dPdx); + globals->dPdy = TO_VEC3(dPdy); } -}; -ClosureParam *closure_bsdf_microfacet_multi_ggx_params() -{ - static ClosureParam params[] = { - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXClosure, params.N), - CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXClosure, params.alpha_x), - 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: - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N); - - MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight); - if (!bsdf) { - return; - } - - const KernelGlobalsCPU *kg = sd->osl_globals; - - bsdf->ior = 0.0f; - sd->flag |= bsdf_microfacet_multi_ggx_setup(kg, bsdf, sd, color); + /* surface shader */ + if (kg->osl->surface_state[shader]) { + ss->execute(octx, *(kg->osl->surface_state[shader]), *globals); } -}; - -ClosureParam *closure_bsdf_microfacet_multi_ggx_aniso_params() -{ - static ClosureParam params[] = { - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXClosure, params.N), - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXClosure, params.T), - CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXClosure, params.alpha_x), - CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXClosure, params.alpha_y), - 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() - { + /* flatten closure tree */ + if (globals->Ci) { + flatten_closure_tree(kg, sd, path_flag, globals->Ci); } +} - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N); - - MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight); - if (!bsdf) { - return; - } - - const KernelGlobalsCPU *kg = sd->osl_globals; - - bsdf->T = make_float3(0.0f, 0.0f, 0.0f); - bsdf->alpha_y = bsdf->alpha_x; - sd->flag |= bsdf_microfacet_multi_ggx_glass_setup(kg, bsdf, sd, color); - } -}; +/* Background */ -ClosureParam *closure_bsdf_microfacet_multi_ggx_glass_params() +void OSLShader::eval_background(const KernelGlobalsCPU *kg, + const void *state, + ShaderData *sd, + uint32_t path_flag) { - static ClosureParam params[] = { - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXClosure, params.N), - CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXClosure, params.alpha_x), - CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXClosure, params.ior), - 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); - -/* Multiscattering GGX closures with Fresnel */ - -class MicrofacetMultiFresnelClosure : public CBSDFClosure { - public: - MicrofacetBsdf params; - float3 color; - float3 cspec0; - - MicrofacetBsdf *alloc(ShaderData *sd, uint32_t path_flag, float3 weight) - { - /* Technically, the MultiGGX closure may also transmit. However, - * since this is set statically and only used for caustic flags, this - * is probably as good as it gets. */ - if (skip(sd, path_flag, LABEL_GLOSSY | LABEL_REFLECT)) { - return NULL; - } - - MicrofacetBsdf *bsdf = (MicrofacetBsdf *)bsdf_alloc_osl( - sd, sizeof(MicrofacetBsdf), weight, ¶ms); - if (!bsdf) { - return NULL; - } + /* setup shader globals from shader data */ + OSLThreadData *tdata = kg->osl_tdata; + shaderdata_to_shaderglobals(kg, sd, state, path_flag, tdata); - MicrofacetExtra *extra = (MicrofacetExtra *)closure_alloc_extra(sd, sizeof(MicrofacetExtra)); - if (!extra) { - return NULL; - } + /* execute shader for this point */ + OSL::ShadingSystem *ss = (OSL::ShadingSystem *)kg->osl_ss; + OSL::ShaderGlobals *globals = &tdata->globals; + OSL::ShadingContext *octx = tdata->context; - bsdf->extra = extra; - bsdf->extra->color = color; - bsdf->extra->cspec0 = cspec0; - return bsdf; + if (kg->osl->background_state) { + ss->execute(octx, *(kg->osl->background_state), *globals); } -}; - -class MicrofacetMultiGGXFresnelClosure : public MicrofacetMultiFresnelClosure { - public: - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N); - - MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight); - if (!bsdf) { - return; - } - - const KernelGlobalsCPU *kg = sd->osl_globals; - bsdf->T = make_float3(0.0f, 0.0f, 0.0f); - bsdf->alpha_y = bsdf->alpha_x; - sd->flag |= bsdf_microfacet_multi_ggx_fresnel_setup(kg, bsdf, sd); + /* return background color immediately */ + if (globals->Ci) { + flatten_closure_tree(kg, sd, path_flag, globals->Ci); } -}; - -ClosureParam *closure_bsdf_microfacet_multi_ggx_fresnel_params() -{ - static ClosureParam params[] = { - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXFresnelClosure, params.N), - CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXFresnelClosure, params.alpha_x), - CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXFresnelClosure, params.ior), - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXFresnelClosure, color), - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXFresnelClosure, cspec0), - CLOSURE_STRING_KEYPARAM(MicrofacetMultiGGXFresnelClosure, label, "label"), - CLOSURE_FINISH_PARAM(MicrofacetMultiGGXFresnelClosure)}; - return params; } -CCLOSURE_PREPARE(closure_bsdf_microfacet_multi_ggx_fresnel_prepare, - MicrofacetMultiGGXFresnelClosure); - -class MicrofacetMultiGGXAnisoFresnelClosure : public MicrofacetMultiFresnelClosure { - public: - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N); - - MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight); - if (!bsdf) { - return; - } - const KernelGlobalsCPU *kg = sd->osl_globals; - - sd->flag |= bsdf_microfacet_multi_ggx_fresnel_setup(kg, bsdf, sd); - } -}; +/* Volume */ -ClosureParam *closure_bsdf_microfacet_multi_ggx_aniso_fresnel_params() +void OSLShader::eval_volume(const KernelGlobalsCPU *kg, + const void *state, + ShaderData *sd, + uint32_t path_flag) { - static ClosureParam params[] = { - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXFresnelClosure, params.N), - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXFresnelClosure, params.T), - CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXFresnelClosure, params.alpha_x), - CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXFresnelClosure, params.alpha_y), - CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXFresnelClosure, params.ior), - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXFresnelClosure, color), - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXFresnelClosure, cspec0), - CLOSURE_STRING_KEYPARAM(MicrofacetMultiGGXFresnelClosure, label, "label"), - CLOSURE_FINISH_PARAM(MicrofacetMultiGGXFresnelClosure)}; - return params; -} -CCLOSURE_PREPARE(closure_bsdf_microfacet_multi_ggx_aniso_fresnel_prepare, - MicrofacetMultiGGXAnisoFresnelClosure); - -class MicrofacetMultiGGXGlassFresnelClosure : public MicrofacetMultiFresnelClosure { - public: - MicrofacetMultiGGXGlassFresnelClosure() : MicrofacetMultiFresnelClosure() - { + /* setup shader globals from shader data */ + OSLThreadData *tdata = kg->osl_tdata; + shaderdata_to_shaderglobals(kg, sd, state, path_flag, tdata); + + /* execute shader */ + OSL::ShadingSystem *ss = (OSL::ShadingSystem *)kg->osl_ss; + OSL::ShaderGlobals *globals = &tdata->globals; + OSL::ShadingContext *octx = tdata->context; + int shader = sd->shader & SHADER_MASK; + + if (kg->osl->volume_state[shader]) { + ss->execute(octx, *(kg->osl->volume_state[shader]), *globals); } - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N); - - MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight); - if (!bsdf) { - return; - } - - const KernelGlobalsCPU *kg = sd->osl_globals; - - bsdf->T = make_float3(0.0f, 0.0f, 0.0f); - bsdf->alpha_y = bsdf->alpha_x; - sd->flag |= bsdf_microfacet_multi_ggx_glass_fresnel_setup(kg, bsdf, sd); - } -}; - -ClosureParam *closure_bsdf_microfacet_multi_ggx_glass_fresnel_params() -{ - static ClosureParam params[] = { - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXFresnelClosure, params.N), - CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXFresnelClosure, params.alpha_x), - CLOSURE_FLOAT_PARAM(MicrofacetMultiGGXFresnelClosure, params.ior), - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXFresnelClosure, color), - CLOSURE_FLOAT3_PARAM(MicrofacetMultiGGXFresnelClosure, cspec0), - CLOSURE_STRING_KEYPARAM(MicrofacetMultiGGXFresnelClosure, label, "label"), - CLOSURE_FINISH_PARAM(MicrofacetMultiGGXFresnelClosure)}; - return params; -} -CCLOSURE_PREPARE(closure_bsdf_microfacet_multi_ggx_glass_fresnel_prepare, - MicrofacetMultiGGXGlassFresnelClosure); - -/* Transparent */ - -class TransparentClosure : public CBSDFClosure { - public: - ShaderClosure params; - float3 unused; - - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - bsdf_transparent_setup(sd, weight, path_flag); + /* flatten closure tree */ + if (globals->Ci) { + flatten_closure_tree(kg, sd, path_flag, globals->Ci); } -}; - -ClosureParam *closure_bsdf_transparent_params() -{ - static ClosureParam params[] = {CLOSURE_STRING_KEYPARAM(TransparentClosure, label, "label"), - CLOSURE_FINISH_PARAM(TransparentClosure)}; - return params; } -CCLOSURE_PREPARE(closure_bsdf_transparent_prepare, TransparentClosure) +/* Displacement */ -/* Volume */ - -class VolumeAbsorptionClosure : public CBSDFClosure { - public: - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - volume_extinction_setup(sd, weight); - } -}; - -ClosureParam *closure_absorption_params() +void OSLShader::eval_displacement(const KernelGlobalsCPU *kg, const void *state, ShaderData *sd) { - static ClosureParam params[] = {CLOSURE_STRING_KEYPARAM(VolumeAbsorptionClosure, label, "label"), - CLOSURE_FINISH_PARAM(VolumeAbsorptionClosure)}; - return params; -} - -CCLOSURE_PREPARE(closure_absorption_prepare, VolumeAbsorptionClosure) - -class VolumeHenyeyGreensteinClosure : public CBSDFClosure { - public: - HenyeyGreensteinVolume params; - - void setup(ShaderData *sd, uint32_t path_flag, float3 weight) - { - volume_extinction_setup(sd, weight); - - HenyeyGreensteinVolume *volume = (HenyeyGreensteinVolume *)bsdf_alloc_osl( - sd, sizeof(HenyeyGreensteinVolume), weight, ¶ms); - if (!volume) { - return; - } - - sd->flag |= volume_henyey_greenstein_setup(volume); + /* setup shader globals from shader data */ + OSLThreadData *tdata = kg->osl_tdata; + shaderdata_to_shaderglobals(kg, sd, state, 0, tdata); + + /* execute shader */ + OSL::ShadingSystem *ss = (OSL::ShadingSystem *)kg->osl_ss; + OSL::ShaderGlobals *globals = &tdata->globals; + OSL::ShadingContext *octx = tdata->context; + int shader = sd->shader & SHADER_MASK; + + if (kg->osl->displacement_state[shader]) { + ss->execute(octx, *(kg->osl->displacement_state[shader]), *globals); } -}; -ClosureParam *closure_henyey_greenstein_params() -{ - static ClosureParam params[] = { - CLOSURE_FLOAT_PARAM(VolumeHenyeyGreensteinClosure, params.g), - CLOSURE_STRING_KEYPARAM(VolumeHenyeyGreensteinClosure, label, "label"), - CLOSURE_FINISH_PARAM(VolumeHenyeyGreensteinClosure)}; - return params; + /* get back position */ + sd->P = TO_FLOAT3(globals->P); } -CCLOSURE_PREPARE(closure_henyey_greenstein_prepare, VolumeHenyeyGreensteinClosure) - CCL_NAMESPACE_END |