csgo/cstrike15_src/materialsystem/stdshaders/Downsample_vs20.fxc

#include "common_vs_fxc.h"

struct VS_INPUT
{
	float3 vPos						: POSITION;
	float2 vBaseTexCoord			: TEXCOORD0;
};

struct VS_OUTPUT
{
    float4 projPos					: POSITION;	
	float2 coordTap0				: TEXCOORD0;
	float2 coordTap1				: TEXCOORD1;
	float2 coordTap2				: TEXCOORD2;
	float2 coordTap3				: TEXCOORD3;
};

float2 vsTapOffs[4] : register ( SHADER_SPECIFIC_CONST_0 );

VS_OUTPUT main( const VS_INPUT v )
{
	VS_OUTPUT o = ( VS_OUTPUT )0;

	o.projPos = float4( v.vPos, 1.0f );

#ifdef _PS3
	// Account for OpenGL's flipped y coordinate and expanded z range [-1,1] instead of [0,1]
	o.projPos.y = -o.projPos.y;
	o.projPos.z = 2.0f * o.projPos.z - o.projPos.w;
#endif // _PS3

	o.coordTap0    = v.vBaseTexCoord + vsTapOffs[0];
	o.coordTap1    = v.vBaseTexCoord + vsTapOffs[1];
	o.coordTap2    = v.vBaseTexCoord + vsTapOffs[2];
	o.coordTap3    = v.vBaseTexCoord + vsTapOffs[3];

	return o;
}