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// Copyright 2009 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#include "Alloy.ih"
#include "render/Material.ih"
#include "render/bsdfs/Conductor.ih"
#include "render/bsdfs/MicrofacetConductor.ih"
#include "texture/TextureParam.ih"
// c++ shared
#include "AlloyShared.h"
///////////////////////////////////////////////////////////////////////////////
// Implementation
OSPRAY_BEGIN_ISPC_NAMESPACE
SYCL_EXTERNAL const varying BSDF *uniform Alloy_getBSDF(
const uniform Material *uniform super,
uniform ShadingContext *uniform ctx,
const DifferentialGeometry &dg,
const Ray &,
const Medium &,
const uniform FeatureFlagsHandler &)
{
const uniform Alloy *uniform self = (const uniform Alloy *uniform)super;
varying linear3f *uniform shadingframe =
LinearSpace3f_create(ctx, frame(dg.Ns));
const vec3f color = self->color * make_vec3f(dg.color)
* get3f(self->colorMap, dg, make_vec3f(1.f));
const vec3f edgeColor =
self->edgeColor * get3f(self->edgeColorMap, dg, make_vec3f(1.f));
Fresnel *uniform fresnel = FresnelSchlick_create(ctx, color, edgeColor);
varying BSDF *uniform bsdf;
if (self->roughness == 0.0f) {
bsdf = Conductor_create(ctx, shadingframe, fresnel);
bsdf->bsdfType = BSDF_TYPE_ALLOY;
} else {
bsdf = MicrofacetConductor_create(ctx,
super->microfacetAlbedoTables,
shadingframe,
fresnel,
self->roughness * get1f(self->roughnessMap, dg, 1.f),
0.f);
bsdf->bsdfType = BSDF_TYPE_ALLOY_ROUGH;
}
return bsdf;
}
SYCL_EXTERNAL BSDF_EvalRes AlloyRough_BSDF_eval(
const varying BSDF *uniform super, const vec3f &wo, const vec3f &wi)
{
return MicrofacetConductor_eval(
(const varying MicrofacetConductor *uniform)super, wo, wi);
}
SYCL_EXTERNAL BSDF_SampleRes AlloyRough_BSDF_sample(
const varying BSDF *uniform super,
const vec3f &wo,
const vec2f &s,
float ss)
{
return MicrofacetConductor_sample(
(const varying MicrofacetConductor *uniform)super, wo, s, ss);
}
SYCL_EXTERNAL BSDF_SampleRes Alloy_BSDF_sample(
const varying BSDF *uniform super,
const vec3f &wo,
const vec2f &s,
float ss)
{
return Conductor_sample(super, wo, s, ss);
}
///////////////////////////////////////////////////////////////////////////////
// External API
export void *uniform Alloy_getBSDF_addr()
{
return (void *uniform)Alloy_getBSDF;
}
OSPRAY_END_ISPC_NAMESPACE
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