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materialsystem/stdshaders/compositor_vs20.fxc

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+//======= Copyright © 1996-2007, Valve Corporation, All rights reserved. ======
+
+#include "common_vs_fxc.h"
+
+// This could be packed more efficiently if needed.
+const float4x2 cXformTexCoord0			: register( c2  );
+const float4x2 cXformTexCoord1			: register( c4  );
+const float4x2 cXformTexCoord2			: register( c6  );
+const float4x2 cXformTexCoord3			: register( c8  );
+
+struct VS_INPUT
+{
+	float3 vPos						: POSITION;
+	float2 vBaseTexCoord			: TEXCOORD0;
+};
+
+struct VS_OUTPUT
+{
+    float4 projPos					: POSITION;	
+	float4 texCoord01				: TEXCOORD0;
+	float4 texCoord23				: TEXCOORD1;
+};
+
+#define texCoord0	texCoord01.xy
+#define texCoord1	texCoord01.zw
+#define texCoord2	texCoord23.xy
+#define texCoord3	texCoord23.zw
+
+VS_OUTPUT main( const VS_INPUT v )
+{
+	VS_OUTPUT o = ( VS_OUTPUT )0;
+
+	o.projPos		= float4( v.vPos, 1.0f );
+
+	o.texCoord0		= mul( float3( v.vBaseTexCoord, 1 ), (float3x2)cXformTexCoord0 );
+	o.texCoord1		= mul( float3( v.vBaseTexCoord, 1 ), (float3x2)cXformTexCoord1 );
+	o.texCoord2		= mul( float3( v.vBaseTexCoord, 1 ), (float3x2)cXformTexCoord2 );
+	o.texCoord3		= mul( float3( v.vBaseTexCoord, 1 ), (float3x2)cXformTexCoord3 );
+
+	return o;
+}