Engine/Shaders/DepthOnlyVertexShader.usf

/*=============================================================================
	DepthOnlyVertexShader.hlsl: Depth-only vertex shader.
	Copyright 1998-2008 Epic Games, Inc. All Rights Reserved.
=============================================================================*/

#include "Common.usf"
#include "Material.usf"
#include "VertexFactory.usf"

void Main(
	FVertexFactoryInput Input,
#if !MATERIALBLENDING_SOLID
	out FVertexFactoryInterpolants OutFactoryInterpolants,
	out float3 CameraVector : TEXCOORD4,
	out float4 PixelPosition : TEXCOORD5,
#endif
	out float4 OutPosition : POSITION
	)
{
	float4 WorldPos = VertexFactoryGetWorldPosition(Input);
	OutPosition = MulMatrix(ViewProjectionMatrix,WorldPos);

#if !MATERIALBLENDING_SOLID
	// Masked and transparent materials need texture coords to clip
	OutFactoryInterpolants = VertexFactoryGetInterpolants(Input);
	#if WORLD_POS
		PixelPosition = WorldPos;
	#else
		PixelPosition = OutPosition;
	#endif
	float3x3 TangentBasis = VertexFactoryGetTangentBasis(Input);
	// The mask may be dependent on the camera vector
	CameraVector = VertexFactoryWorldToTangentSpace(Input,TangentBasis,CameraPosition.xyz - WorldPos.xyz * CameraPosition.w);
#endif
}