34 lines
689 B
HLSL
34 lines
689 B
HLSL
float GetSpecularThreshold( float m_fMetalness )
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{
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return 0;
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}
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struct BRDF_t
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{
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float3 m_vRayIn;
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float3 m_vRayOut;
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float3 m_vNormal;
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float3 m_vAlbedo;
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float m_fRoughness;
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float m_fMetalness;
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float FresnelDiffuseTerm( float fSine )
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{
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return (fSine * (1 - 0.5 * m_fRoughness) + 0.5 * m_fRoughness);
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}
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float3 BurleyDiffuse( )
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{
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float fSineNormalLight = saturate(dot(m_vNormal, m_vRayOut));
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float fSineNormalView = saturate(dot(m_vNormal, m_vRayIn));
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float fFresnelLight = FresnelDiffuseTerm(fSineNormalLight);
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float fFresnelView = FresnelDiffuseTerm(fSineNormalView);
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return saturate(dot(m_vNormal,m_vRayOut));
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}
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float3 GetOutGoingDirection()
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{
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return 0;
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}
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}
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