Differential D12367 Diff 41308 intern/cycles/kernel/closure/bsdf_principled_diffuse.h

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intern/cycles/kernel/closure/bsdf_principled_diffuse.h

/*		/*
* Copyright 2011-2017 Blender Foundation		* Copyright 2011-2017 Blender Foundation
*		*
* Licensed under the Apache License, Version 2.0 (the "License");		* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.		* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at		* You may obtain a copy of the License at
*		*
* http://www.apache.org/licenses/LICENSE-2.0		* http://www.apache.org/licenses/LICENSE-2.0
*		*
* Unless required by applicable law or agreed to in writing, software		* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,		* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and		* See the License for the specific language governing permissions and
* limitations under the License.		* limitations under the License.
*/		*/

#ifndef __BSDF_PRINCIPLED_DIFFUSE_H__		#pragma once
#define __BSDF_PRINCIPLED_DIFFUSE_H__

/* DISNEY PRINCIPLED DIFFUSE BRDF		/* DISNEY PRINCIPLED DIFFUSE BRDF
*		*
* Shading model by Brent Burley (Disney): "Physically Based Shading at Disney" (2012)		* Shading model by Brent Burley (Disney): "Physically Based Shading at Disney" (2012)
*/		*/

		#include "kernel/closure/bsdf_util.h"

CCL_NAMESPACE_BEGIN		CCL_NAMESPACE_BEGIN

typedef ccl_addr_space struct PrincipledDiffuseBsdf {		typedef ccl_addr_space struct PrincipledDiffuseBsdf {
SHADER_CLOSURE_BASE;		SHADER_CLOSURE_BASE;

float roughness;		float roughness;
} PrincipledDiffuseBsdf;		} PrincipledDiffuseBsdf;

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}		}

ccl_device int bsdf_principled_diffuse_setup(PrincipledDiffuseBsdf *bsdf)		ccl_device int bsdf_principled_diffuse_setup(PrincipledDiffuseBsdf *bsdf)
{		{
bsdf->type = CLOSURE_BSDF_PRINCIPLED_DIFFUSE_ID;		bsdf->type = CLOSURE_BSDF_PRINCIPLED_DIFFUSE_ID;
return SD_BSDF \| SD_BSDF_HAS_EVAL;		return SD_BSDF \| SD_BSDF_HAS_EVAL;
}		}

ccl_device bool bsdf_principled_diffuse_merge(const ShaderClosure a, const ShaderClosure b)
{
const PrincipledDiffuseBsdf bsdf_a = (const PrincipledDiffuseBsdf )a;
const PrincipledDiffuseBsdf bsdf_b = (const PrincipledDiffuseBsdf )b;

return (isequal_float3(bsdf_a->N, bsdf_b->N) && bsdf_a->roughness == bsdf_b->roughness);
}

ccl_device float3 bsdf_principled_diffuse_eval_reflect(const ShaderClosure *sc,		ccl_device float3 bsdf_principled_diffuse_eval_reflect(const ShaderClosure *sc,
const float3 I,		const float3 I,
const float3 omega_in,		const float3 omega_in,
float *pdf)		float *pdf)
{		{
const PrincipledDiffuseBsdf bsdf = (const PrincipledDiffuseBsdf )sc;		const PrincipledDiffuseBsdf bsdf = (const PrincipledDiffuseBsdf )sc;

float3 N = bsdf->N;		float3 N = bsdf->N;
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}		}
else {		else {
*pdf = 0.0f;		*pdf = 0.0f;
}		}
return LABEL_REFLECT \| LABEL_DIFFUSE;		return LABEL_REFLECT \| LABEL_DIFFUSE;
}		}

CCL_NAMESPACE_END		CCL_NAMESPACE_END

#endif /* __BSDF_PRINCIPLED_DIFFUSE_H__ */