Brecht Van Lommel
25b8dedfb4
The code to implement the newer closure in terms of the old one got lost in the removal of our stdosl.h copy. Now implement it as a builtin closure.
1009 lines
37 KiB
C++
1009 lines
37 KiB
C++
/*
|
|
* Adapted from Open Shading Language with this license:
|
|
*
|
|
* Copyright (c) 2009-2010 Sony Pictures Imageworks Inc., et al.
|
|
* All Rights Reserved.
|
|
*
|
|
* Modifications Copyright 2011-2018, Blender Foundation.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* * Neither the name of Sony Pictures Imageworks nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <OSL/genclosure.h>
|
|
#include <OSL/oslclosure.h>
|
|
|
|
#include "kernel/osl/osl_closures.h"
|
|
#include "kernel/osl/osl_shader.h"
|
|
|
|
#include "util/util_math.h"
|
|
#include "util/util_param.h"
|
|
|
|
// clang-format off
|
|
#include "kernel/kernel_types.h"
|
|
#include "kernel/kernel_compat_cpu.h"
|
|
#include "kernel/split/kernel_split_data_types.h"
|
|
#include "kernel/kernel_globals.h"
|
|
#include "kernel/kernel_montecarlo.h"
|
|
#include "kernel/kernel_random.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_multi.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)
|
|
CLOSURE_FLOAT3_PARAM(DiffuseClosure, params.N),
|
|
BSDF_CLOSURE_CLASS_END(Diffuse, diffuse)
|
|
|
|
BSDF_CLOSURE_CLASS_BEGIN(Translucent, translucent, DiffuseBsdf, LABEL_DIFFUSE)
|
|
CLOSURE_FLOAT3_PARAM(TranslucentClosure, params.N),
|
|
BSDF_CLOSURE_CLASS_END(Translucent, translucent)
|
|
|
|
BSDF_CLOSURE_CLASS_BEGIN(OrenNayar, oren_nayar, OrenNayarBsdf, LABEL_DIFFUSE)
|
|
CLOSURE_FLOAT3_PARAM(OrenNayarClosure, params.N),
|
|
CLOSURE_FLOAT_PARAM(OrenNayarClosure, params.roughness),
|
|
BSDF_CLOSURE_CLASS_END(OrenNayar, oren_nayar)
|
|
|
|
BSDF_CLOSURE_CLASS_BEGIN(Reflection, reflection, MicrofacetBsdf, LABEL_SINGULAR)
|
|
CLOSURE_FLOAT3_PARAM(ReflectionClosure, params.N),
|
|
BSDF_CLOSURE_CLASS_END(Reflection, reflection)
|
|
|
|
BSDF_CLOSURE_CLASS_BEGIN(Refraction, refraction, MicrofacetBsdf, LABEL_SINGULAR)
|
|
CLOSURE_FLOAT3_PARAM(RefractionClosure, params.N),
|
|
CLOSURE_FLOAT_PARAM(RefractionClosure, params.ior),
|
|
BSDF_CLOSURE_CLASS_END(Refraction, refraction)
|
|
|
|
BSDF_CLOSURE_CLASS_BEGIN(AshikhminVelvet, ashikhmin_velvet, VelvetBsdf, LABEL_DIFFUSE)
|
|
CLOSURE_FLOAT3_PARAM(AshikhminVelvetClosure, params.N),
|
|
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)
|
|
CLOSURE_FLOAT3_PARAM(AshikhminShirleyClosure, params.N),
|
|
CLOSURE_FLOAT3_PARAM(AshikhminShirleyClosure, params.T),
|
|
CLOSURE_FLOAT_PARAM(AshikhminShirleyClosure, params.alpha_x),
|
|
CLOSURE_FLOAT_PARAM(AshikhminShirleyClosure, params.alpha_y),
|
|
BSDF_CLOSURE_CLASS_END(AshikhminShirley, ashikhmin_shirley)
|
|
|
|
BSDF_CLOSURE_CLASS_BEGIN(DiffuseToon, diffuse_toon, ToonBsdf, LABEL_DIFFUSE)
|
|
CLOSURE_FLOAT3_PARAM(DiffuseToonClosure, params.N),
|
|
CLOSURE_FLOAT_PARAM(DiffuseToonClosure, params.size),
|
|
CLOSURE_FLOAT_PARAM(DiffuseToonClosure, params.smooth),
|
|
BSDF_CLOSURE_CLASS_END(DiffuseToon, diffuse_toon)
|
|
|
|
BSDF_CLOSURE_CLASS_BEGIN(GlossyToon, glossy_toon, ToonBsdf, LABEL_GLOSSY)
|
|
CLOSURE_FLOAT3_PARAM(GlossyToonClosure, params.N),
|
|
CLOSURE_FLOAT_PARAM(GlossyToonClosure, params.size),
|
|
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)
|
|
CLOSURE_FLOAT3_PARAM(MicrofacetGGXIsotropicClosure, params.N),
|
|
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)
|
|
CLOSURE_FLOAT3_PARAM(MicrofacetGGXClosure, params.N),
|
|
CLOSURE_FLOAT3_PARAM(MicrofacetGGXClosure, params.T),
|
|
CLOSURE_FLOAT_PARAM(MicrofacetGGXClosure, params.alpha_x),
|
|
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)
|
|
CLOSURE_FLOAT3_PARAM(MicrofacetBeckmannIsotropicClosure, params.N),
|
|
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)
|
|
CLOSURE_FLOAT3_PARAM(MicrofacetBeckmannClosure, params.N),
|
|
CLOSURE_FLOAT3_PARAM(MicrofacetBeckmannClosure, params.T),
|
|
CLOSURE_FLOAT_PARAM(MicrofacetBeckmannClosure, params.alpha_x),
|
|
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)
|
|
CLOSURE_FLOAT3_PARAM(MicrofacetGGXRefractionClosure, params.N),
|
|
CLOSURE_FLOAT_PARAM(MicrofacetGGXRefractionClosure, params.alpha_x),
|
|
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)
|
|
CLOSURE_FLOAT3_PARAM(MicrofacetBeckmannRefractionClosure, params.N),
|
|
CLOSURE_FLOAT_PARAM(MicrofacetBeckmannRefractionClosure, params.alpha_x),
|
|
CLOSURE_FLOAT_PARAM(MicrofacetBeckmannRefractionClosure, params.ior),
|
|
BSDF_CLOSURE_CLASS_END(MicrofacetBeckmannRefraction, microfacet_beckmann_refraction)
|
|
|
|
BSDF_CLOSURE_CLASS_BEGIN(HairReflection, hair_reflection, HairBsdf, LABEL_GLOSSY)
|
|
CLOSURE_FLOAT3_PARAM(HairReflectionClosure, params.N),
|
|
CLOSURE_FLOAT_PARAM(HairReflectionClosure, params.roughness1),
|
|
CLOSURE_FLOAT_PARAM(HairReflectionClosure, params.roughness2),
|
|
CLOSURE_FLOAT3_PARAM(HairReflectionClosure, params.T),
|
|
CLOSURE_FLOAT_PARAM(HairReflectionClosure, params.offset),
|
|
BSDF_CLOSURE_CLASS_END(HairReflection, hair_reflection)
|
|
|
|
BSDF_CLOSURE_CLASS_BEGIN(HairTransmission, hair_transmission, HairBsdf, LABEL_GLOSSY)
|
|
CLOSURE_FLOAT3_PARAM(HairTransmissionClosure, params.N),
|
|
CLOSURE_FLOAT_PARAM(HairTransmissionClosure, params.roughness1),
|
|
CLOSURE_FLOAT_PARAM(HairTransmissionClosure, params.roughness2),
|
|
CLOSURE_FLOAT3_PARAM(HairReflectionClosure, params.T),
|
|
CLOSURE_FLOAT_PARAM(HairReflectionClosure, params.offset),
|
|
BSDF_CLOSURE_CLASS_END(HairTransmission, hair_transmission)
|
|
|
|
BSDF_CLOSURE_CLASS_BEGIN(PrincipledDiffuse,
|
|
principled_diffuse,
|
|
PrincipledDiffuseBsdf,
|
|
LABEL_DIFFUSE)
|
|
CLOSURE_FLOAT3_PARAM(PrincipledDiffuseClosure, params.N),
|
|
CLOSURE_FLOAT_PARAM(PrincipledDiffuseClosure, params.roughness),
|
|
BSDF_CLOSURE_CLASS_END(PrincipledDiffuse, principled_diffuse)
|
|
|
|
class PrincipledSheenClosure : public CBSDFClosure {
|
|
public:
|
|
PrincipledSheenBsdf params;
|
|
|
|
void setup(ShaderData *sd, int path_flag, float3 weight)
|
|
{
|
|
if (!skip(sd, path_flag, LABEL_DIFFUSE)) {
|
|
PrincipledSheenBsdf *bsdf = (PrincipledSheenBsdf *)bsdf_alloc_osl(
|
|
sd, sizeof(PrincipledSheenBsdf), weight, ¶ms);
|
|
sd->flag |= (bsdf) ? bsdf_principled_sheen_setup(sd, bsdf) : 0;
|
|
}
|
|
}
|
|
};
|
|
|
|
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;
|
|
}
|
|
|
|
CCLOSURE_PREPARE_STATIC(closure_bsdf_principled_sheen_prepare, PrincipledSheenClosure)
|
|
|
|
/* PRINCIPLED HAIR BSDF */
|
|
class PrincipledHairClosure : public CBSDFClosure {
|
|
public:
|
|
PrincipledHairBSDF params;
|
|
|
|
PrincipledHairBSDF *alloc(ShaderData *sd, int path_flag, float3 weight)
|
|
{
|
|
PrincipledHairBSDF *bsdf = (PrincipledHairBSDF *)bsdf_alloc_osl(
|
|
sd, sizeof(PrincipledHairBSDF), weight, ¶ms);
|
|
if (!bsdf) {
|
|
return NULL;
|
|
}
|
|
|
|
PrincipledHairExtra *extra = (PrincipledHairExtra *)closure_alloc_extra(
|
|
sd, sizeof(PrincipledHairExtra));
|
|
if (!extra) {
|
|
return NULL;
|
|
}
|
|
|
|
bsdf->extra = extra;
|
|
return bsdf;
|
|
}
|
|
|
|
void setup(ShaderData *sd, int path_flag, float3 weight)
|
|
{
|
|
if (!skip(sd, path_flag, LABEL_GLOSSY)) {
|
|
PrincipledHairBSDF *bsdf = (PrincipledHairBSDF *)alloc(sd, path_flag, weight);
|
|
if (!bsdf) {
|
|
return;
|
|
}
|
|
|
|
sd->flag |= (bsdf) ? bsdf_principled_hair_setup(sd, bsdf) : 0;
|
|
}
|
|
}
|
|
};
|
|
|
|
static ClosureParam *closure_bsdf_principled_hair_params()
|
|
{
|
|
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)
|
|
|
|
/* DISNEY PRINCIPLED CLEARCOAT */
|
|
class PrincipledClearcoatClosure : public CBSDFClosure {
|
|
public:
|
|
MicrofacetBsdf params;
|
|
float clearcoat, clearcoat_roughness;
|
|
|
|
MicrofacetBsdf *alloc(ShaderData *sd, int path_flag, float3 weight)
|
|
{
|
|
MicrofacetBsdf *bsdf = (MicrofacetBsdf *)bsdf_alloc_osl(
|
|
sd, sizeof(MicrofacetBsdf), weight, ¶ms);
|
|
if (!bsdf) {
|
|
return NULL;
|
|
}
|
|
|
|
MicrofacetExtra *extra = (MicrofacetExtra *)closure_alloc_extra(sd, sizeof(MicrofacetExtra));
|
|
if (!extra) {
|
|
return NULL;
|
|
}
|
|
|
|
bsdf->T = make_float3(0.0f, 0.0f, 0.0f);
|
|
bsdf->extra = extra;
|
|
bsdf->ior = 1.5f;
|
|
bsdf->alpha_x = clearcoat_roughness;
|
|
bsdf->alpha_y = clearcoat_roughness;
|
|
bsdf->extra->color = make_float3(0.0f, 0.0f, 0.0f);
|
|
bsdf->extra->cspec0 = make_float3(0.04f, 0.04f, 0.04f);
|
|
bsdf->extra->clearcoat = clearcoat;
|
|
return bsdf;
|
|
}
|
|
|
|
void setup(ShaderData *sd, int path_flag, float3 weight)
|
|
{
|
|
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;
|
|
}
|
|
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
|
|
}
|
|
|
|
void OSLShader::register_closures(OSLShadingSystem *ss_)
|
|
{
|
|
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, int path_flag, int scattering)
|
|
{
|
|
/* caustic options */
|
|
if ((scattering & LABEL_GLOSSY) && (path_flag & PATH_RAY_DIFFUSE)) {
|
|
KernelGlobals *kg = sd->osl_globals;
|
|
|
|
if ((!kernel_data.integrator.caustics_reflective && (scattering & LABEL_REFLECT)) ||
|
|
(!kernel_data.integrator.caustics_refractive && (scattering & LABEL_TRANSMIT))) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/* Standard Microfacet Closure */
|
|
|
|
class MicrofacetClosure : public CBSDFClosure {
|
|
public:
|
|
MicrofacetBsdf params;
|
|
ustring distribution;
|
|
int refract;
|
|
|
|
void setup(ShaderData *sd, int 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;
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
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, int 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;
|
|
}
|
|
|
|
MicrofacetExtra *extra = (MicrofacetExtra *)closure_alloc_extra(sd, sizeof(MicrofacetExtra));
|
|
if (!extra) {
|
|
return NULL;
|
|
}
|
|
|
|
bsdf->extra = extra;
|
|
bsdf->extra->color = color;
|
|
bsdf->extra->cspec0 = cspec0;
|
|
bsdf->extra->clearcoat = 0.0f;
|
|
return bsdf;
|
|
}
|
|
};
|
|
|
|
class MicrofacetGGXFresnelClosure : public MicrofacetFresnelClosure {
|
|
public:
|
|
void setup(ShaderData *sd, int path_flag, float3 weight)
|
|
{
|
|
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);
|
|
}
|
|
};
|
|
|
|
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, int path_flag, float3 weight)
|
|
{
|
|
MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight);
|
|
if (!bsdf) {
|
|
return;
|
|
}
|
|
|
|
sd->flag |= bsdf_microfacet_ggx_fresnel_setup(bsdf, sd);
|
|
}
|
|
};
|
|
|
|
ClosureParam *closure_bsdf_microfacet_ggx_aniso_fresnel_params()
|
|
{
|
|
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, int 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;
|
|
}
|
|
|
|
MicrofacetExtra *extra = (MicrofacetExtra *)closure_alloc_extra(sd, sizeof(MicrofacetExtra));
|
|
if (!extra) {
|
|
return NULL;
|
|
}
|
|
|
|
bsdf->extra = extra;
|
|
bsdf->extra->color = color;
|
|
bsdf->extra->cspec0 = make_float3(0.0f, 0.0f, 0.0f);
|
|
bsdf->extra->clearcoat = 0.0f;
|
|
return bsdf;
|
|
}
|
|
};
|
|
|
|
class MicrofacetMultiGGXClosure : public MicrofacetMultiClosure {
|
|
public:
|
|
void setup(ShaderData *sd, int path_flag, float3 weight)
|
|
{
|
|
MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight);
|
|
if (!bsdf) {
|
|
return;
|
|
}
|
|
|
|
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(bsdf);
|
|
}
|
|
};
|
|
|
|
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, int path_flag, float3 weight)
|
|
{
|
|
MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight);
|
|
if (!bsdf) {
|
|
return;
|
|
}
|
|
|
|
bsdf->ior = 0.0f;
|
|
sd->flag |= bsdf_microfacet_multi_ggx_setup(bsdf);
|
|
}
|
|
};
|
|
|
|
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()
|
|
{
|
|
}
|
|
|
|
void setup(ShaderData *sd, int path_flag, float3 weight)
|
|
{
|
|
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_multi_ggx_glass_setup(bsdf);
|
|
}
|
|
};
|
|
|
|
ClosureParam *closure_bsdf_microfacet_multi_ggx_glass_params()
|
|
{
|
|
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, int 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;
|
|
}
|
|
|
|
MicrofacetExtra *extra = (MicrofacetExtra *)closure_alloc_extra(sd, sizeof(MicrofacetExtra));
|
|
if (!extra) {
|
|
return NULL;
|
|
}
|
|
|
|
bsdf->extra = extra;
|
|
bsdf->extra->color = color;
|
|
bsdf->extra->cspec0 = cspec0;
|
|
bsdf->extra->clearcoat = 0.0f;
|
|
return bsdf;
|
|
}
|
|
};
|
|
|
|
class MicrofacetMultiGGXFresnelClosure : public MicrofacetMultiFresnelClosure {
|
|
public:
|
|
void setup(ShaderData *sd, int path_flag, float3 weight)
|
|
{
|
|
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_multi_ggx_fresnel_setup(bsdf, sd);
|
|
}
|
|
};
|
|
|
|
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, int path_flag, float3 weight)
|
|
{
|
|
MicrofacetBsdf *bsdf = alloc(sd, path_flag, weight);
|
|
if (!bsdf) {
|
|
return;
|
|
}
|
|
|
|
sd->flag |= bsdf_microfacet_multi_ggx_fresnel_setup(bsdf, sd);
|
|
}
|
|
};
|
|
|
|
ClosureParam *closure_bsdf_microfacet_multi_ggx_aniso_fresnel_params()
|
|
{
|
|
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()
|
|
{
|
|
}
|
|
|
|
void setup(ShaderData *sd, int path_flag, float3 weight)
|
|
{
|
|
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_multi_ggx_glass_fresnel_setup(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, int path_flag, float3 weight)
|
|
{
|
|
bsdf_transparent_setup(sd, weight, path_flag);
|
|
}
|
|
};
|
|
|
|
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)
|
|
|
|
/* Volume */
|
|
|
|
class VolumeAbsorptionClosure : public CBSDFClosure {
|
|
public:
|
|
void setup(ShaderData *sd, int path_flag, float3 weight)
|
|
{
|
|
volume_extinction_setup(sd, weight);
|
|
}
|
|
};
|
|
|
|
ClosureParam *closure_absorption_params()
|
|
{
|
|
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, int 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);
|
|
}
|
|
};
|
|
|
|
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;
|
|
}
|
|
|
|
CCLOSURE_PREPARE(closure_henyey_greenstein_prepare, VolumeHenyeyGreensteinClosure)
|
|
|
|
CCL_NAMESPACE_END
|