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materialsystem/stdshaders/emissive_scroll_blended_pass_ps2x.fxc

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+//========= Copyright © 1996-2006, Valve Corporation, All rights reserved. ============//
+
+// Includes =======================================================================================
+// STATIC: "CONVERT_TO_SRGB" "0..1"	[ps20b][= g_pHardwareConfig->NeedsShaderSRGBConversion()] [PC]
+// STATIC: "CONVERT_TO_SRGB" "0..1"	[ps30][= g_pHardwareConfig->NeedsShaderSRGBConversion()] [PC]
+// STATIC: "CONVERT_TO_SRGB" "0..0"	[= 0] [XBOX]
+#include "common_vertexlitgeneric_dx9.h"
+
+// Texture Samplers ===============================================================================
+sampler g_tBaseSampler		: register( s0 );
+sampler g_tFlowSampler		: register( s1 );
+sampler g_tSelfIllumSampler	: register( s2 );
+
+// Shaders Constants and Globals ==================================================================
+const float4 g_vPackedConst0 : register( c0 );
+#define g_flBlendStrength   g_vPackedConst0.x
+#define g_flTime			g_vPackedConst0.y
+
+const float2 g_vEmissiveScrollVector : register( c1 );
+const float3 g_cSelfIllumTint : register( c2 );
+
+// Interpolated values ============================================================================
+struct PS_INPUT
+{
+	float2 vTexCoord0 : TEXCOORD0;
+};
+
+// Main ===========================================================================================
+//float4 main( PS_INPUT i ) : COLOR // Non-HDR for debugging
+float4 main( PS_INPUT i ) : COLOR
+{
+	// Color texture
+	float4 cBaseColor = tex2D( g_tBaseSampler, i.vTexCoord0.xy );
+
+	// Fetch from dudv map and then fetch from emissive texture with new uv's & scroll
+	float4 vFlowValue = tex2D( g_tFlowSampler, i.vTexCoord0.xy );
+	float2 vEmissiveTexCoord = vFlowValue.xy + ( g_vEmissiveScrollVector.xy * g_flTime );
+	float4 cEmissiveColor = tex2D( g_tSelfIllumSampler, vEmissiveTexCoord.xy );
+
+	//===============//
+	// Combine terms //
+	//===============//
+	float4 result;
+	result.rgb = cBaseColor.rgb * cEmissiveColor.rgb * g_cSelfIllumTint.rgb;
+	result.rgb *= g_flBlendStrength;
+
+	// Set alpha to 0.0f so it doesn't change dest alpha (I should probably disable dest alpha writes)
+	result.a = 0.0f;
+
+	return FinalOutput( result, 0, PIXEL_FOG_TYPE_NONE, TONEMAP_SCALE_LINEAR );
+}