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materialsystem/stdshaders/WorldVertexAlpha_ps2x.fxc

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+// STATIC: "CONVERT_TO_SRGB"	"0..1"	[ps20b][= g_pHardwareConfig->NeedsShaderSRGBConversion()] [PC]
+// STATIC: "CONVERT_TO_SRGB"	"0..0"	[= 0] [XBOX]
+// STATIC: "PASS"				"0..1"
+
+#define HDRTYPE HDR_TYPE_NONE
+#include "common_ps_fxc.h"
+
+// CENTROID: TEXCOORD1
+
+sampler BaseSampler	: register( s0 );
+sampler LightmapSampler: register( s1 );
+sampler LightmapAlphaSampler: register( s2 );
+
+struct PS_INPUT
+{
+	float2 baseCoord				: TEXCOORD0;
+	float2 lightmapCoord			: TEXCOORD1;
+};
+
+float4 main( PS_INPUT i ) : COLOR
+{
+	bool bAlphaPass = PASS ? true : false;
+
+	float4 base = tex2D( BaseSampler, i.baseCoord );
+	float4 lightmap = tex2D( LightmapSampler, i.lightmapCoord );
+	float4 alpha = tex2D( LightmapAlphaSampler, i.lightmapCoord );
+
+	float4 color;
+
+	base.a = dot( base, HALF3( HALF_CONSTANT(0.33333f), HALF_CONSTANT(0.33333f), HALF_CONSTANT(0.33333f) ) );
+	color = 2.0f * base * lightmap; // The 2x is for an assumed overbright 2 (it's always 2 on dx9)
+
+	if( bAlphaPass )
+	{
+		// Don't care about color, just return pre-multiplied alpha
+		return FinalOutput( float4( 0.0f, 0.0f, 1.0f, (1.0f - alpha.a) * color.a ), 0, PIXEL_FOG_TYPE_NONE, TONEMAP_SCALE_NONE );
+	}
+	else
+	{
+		return FinalOutput( float4( color.rgb, (1.0f - alpha.a) ), 0, PIXEL_FOG_TYPE_NONE, TONEMAP_SCALE_NONE );
+	}
+}
+