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// Copyright 2009 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#include "Plastic.ih"
#include "render/Material.ih"
#include "render/bsdfs/DielectricLayer.ih"
#include "render/bsdfs/Lambert.ih"
#include "render/bsdfs/MicrofacetDielectricLayer.ih"
// c++ shared
#include "PlasticShared.h"
///////////////////////////////////////////////////////////////////////////////
// Implementation
OSPRAY_BEGIN_ISPC_NAMESPACE
struct Plastic_BSDF
{
BSDF root;
MicrofacetDielectricLayer dielectricLayer;
BSDF lambert;
};
SYCL_EXTERNAL const varying BSDF *uniform Plastic_getBSDF(
const uniform Material *uniform super,
uniform ShadingContext *uniform ctx,
const DifferentialGeometry &dg,
const Ray &,
const Medium &,
const uniform FeatureFlagsHandler &)
{
const uniform Plastic *uniform self = (const uniform Plastic *uniform)super;
varying LinearSpace3f *uniform shadingFrame =
LinearSpace3f_create(ctx, frame(dg.Ns));
// Allocate memory and initialize material BSDF
varying Plastic_BSDF *uniform bsdf = (varying Plastic_BSDF * uniform)
ShadingContext_alloc(ctx, sizeof(Plastic_BSDF));
const vec3f _pigmentColor = self->pigmentColor;
Lambert_Constructor(&bsdf->lambert, shadingFrame, _pigmentColor);
if (self->roughness == 0.0f) {
DielectricLayer_Constructor(
(varying DielectricLayer * uniform) & bsdf->dielectricLayer,
shadingFrame,
&bsdf->lambert,
self->eta,
make_vec3f(1.0f),
1.0f,
1.0f);
} else {
MicrofacetDielectricLayer_Constructor(&bsdf->dielectricLayer,
super->microfacetAlbedoTables,
shadingFrame,
&bsdf->lambert,
self->eta,
make_vec3f(1.0f),
1.0f,
self->roughness,
0.f,
1.0f);
}
bsdf->root = bsdf->dielectricLayer.super;
bsdf->root.bsdfType = BSDF_TYPE_PLASTIC;
return &bsdf->root;
}
// DielectricLayer BSDF
inline BSDF_EvalRes DielectricLayerBSDF_eval(
const varying Plastic_BSDF *uniform self, const vec3f &wo, const vec3f &wi)
{
DIELECTRICLAYER_EVAL(self->dielectricLayer,
self->lambert.scatteringType,
&self->lambert,
Lambert_eval);
return DIELECTRICLAYER_EVAL_GET();
}
inline BSDF_SampleRes DielectricLayerBSDF_sample(
const varying Plastic_BSDF *uniform self,
const vec3f &wo,
const vec2f &s,
float ss)
{
DIELECTRICLAYER_SAMPLE(self->dielectricLayer,
self->lambert.scatteringType,
&self->lambert,
Lambert_sample);
return DIELECTRICLAYER_SAMPLE_GET();
}
// MicrofacetDielectricLayer BSDF
inline BSDF_EvalRes MicrofacetDielectricLayerBSDF_eval(
const varying Plastic_BSDF *uniform self, const vec3f &wo, const vec3f &wi)
{
MICROFACETDIELECTRICLAYER_EVAL(self->dielectricLayer,
self->lambert.scatteringType,
&self->lambert,
Lambert_eval);
return MICROFACETDIELECTRICLAYER_EVAL_GET();
}
inline BSDF_SampleRes MicrofacetDielectricLayerBSDF_sample(
const varying Plastic_BSDF *uniform self,
const vec3f &wo,
const vec2f &s,
float ss)
{
MICROFACETDIELECTRICLAYER_SAMPLE(self->dielectricLayer,
self->lambert.scatteringType,
&self->lambert,
Lambert_eval,
Lambert_sample);
return MICROFACETDIELECTRICLAYER_SAMPLE_GET();
}
// Plastic BSDF
SYCL_EXTERNAL __noinline BSDF_EvalRes Plastic_BSDF_eval(
const varying BSDF *uniform super, const vec3f &wo, const vec3f &wi)
{
const varying Plastic_BSDF *uniform self =
(const varying Plastic_BSDF *uniform)super;
if (self->dielectricLayer.super.bsdfType
== BSDF_TYPE_MICROFACET_DIELECTRIC_LAYER)
return MicrofacetDielectricLayerBSDF_eval(self, wo, wi);
else
return DielectricLayerBSDF_eval(self, wo, wi);
}
SYCL_EXTERNAL __noinline BSDF_SampleRes Plastic_BSDF_sample(
const varying BSDF *uniform super,
const vec3f &wo,
const vec2f &s,
float ss)
{
const varying Plastic_BSDF *uniform self =
(const varying Plastic_BSDF *uniform)super;
if (self->dielectricLayer.super.bsdfType
== BSDF_TYPE_MICROFACET_DIELECTRIC_LAYER)
return MicrofacetDielectricLayerBSDF_sample(self, wo, s, ss);
else
return DielectricLayerBSDF_sample(self, wo, s, ss);
}
///////////////////////////////////////////////////////////////////////////////
// External API
export void *uniform Plastic_getBSDF_addr()
{
return (void *uniform)Plastic_getBSDF;
}
OSPRAY_END_ISPC_NAMESPACE
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