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44 lines
1.4 KiB
Plaintext
44 lines
1.4 KiB
Plaintext
// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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ShadowDepthCommon.usf: Shared functionality for shadow depth rendering.
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=============================================================================*/
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#ifndef PERSPECTIVE_CORRECT_DEPTH
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#define PERSPECTIVE_CORRECT_DEPTH 0
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#endif
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#ifndef REFLECTIVE_SHADOW_MAP
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#define REFLECTIVE_SHADOW_MAP 0
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#endif
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#define INTERPOLATE_VF_ATTRIBUTES (!MATERIALBLENDING_SOLID || REFLECTIVE_SHADOW_MAP || MATERIALBLENDING_MASKED || (REQUIRES_VF_ATTRIBUTES_FOR_CLIPPING && !POSITION_ONLY))
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#define INTERPOLATE_POSITION ((REFLECTIVE_SHADOW_MAP && !ONEPASS_POINTLIGHT_SHADOW) || MATERIALBLENDING_MASKED)
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// x: Tweakable depth bias, y:InvMaxSubjectDepthUsed to normalize the outputted depth
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float2 ShadowParams;
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/** Data passed from the vertex shader to the pixel shader for the shadow depth pass. */
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struct FShadowDepthVSToPS
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{
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#if INTERPOLATE_VF_ATTRIBUTES
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FVertexFactoryInterpolantsVSToPS FactoryInterpolants;
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#endif
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#if ONEPASS_POINTLIGHT_SHADOW
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float4 GSPosition : TEXCOORD6;
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#elif PERSPECTIVE_CORRECT_DEPTH
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float ShadowDepth : TEXCOORD6;
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#elif !COMPILER_SUPPORTS_EMPTY_STRUCTS
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float Dummy : TEXCOORD6;
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#endif
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#if INTERPOLATE_POSITION
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// world space position needed in some cases, could be changed to be reconsructed from SvPosition (more tricky as this is not from camera perspective)
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float3 PixelPosition : TEXCOORD7;
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#endif
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};
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