1

materialsystem/stdshaders/flashlight_ps11.fxc

@@ -0,0 +1,69 @@
+//====== Copyright © 1996-2004, Valve Corporation, All rights reserved. =======
+//
+// Purpose: 
+//
+//=============================================================================
+
+//	STATIC: "NORMALMAP"				"0..1"
+//	STATIC: "NOCULL"				"0..1"
+
+#include "common_ps_fxc.h"
+
+sampler SpotSampler					: register( s0 );
+sampler BaseTextureSampler			: register( s1 );
+sampler NormalizingCubemapSampler	: register( s2 );
+// use a normalizing cube map here if we aren't normal mapping
+#if NORMALMAP
+sampler NormalMapSampler			: register( s3 );
+#else
+sampler NormalizingCubemapSampler2	: register( s3 );
+#endif
+
+static const HALF g_OverbrightFactor = 2.0f;
+
+struct PS_INPUT
+{
+	float4 spotTexCoord				: TEXCOORD0;
+	float2 baseTexCoord				: TEXCOORD1;
+#if NORMALMAP
+	float3 tangentPosToLightVector	: TEXCOORD2;
+	float2 normalMapTexCoord		: TEXCOORD3;
+#else
+	float3 worldPosToLightVector	: TEXCOORD2;
+	float3 normal					: TEXCOORD3;
+#endif
+	float4 vertAtten				: COLOR0;
+};
+
+float4 main( PS_INPUT i ) : COLOR
+{
+#if NORMALMAP
+	float3 normal = tex2D( NormalMapSampler, i.normalMapTexCoord ) * 2.0f - 1.0f;
+#else
+	float3 normal = texCUBE( NormalizingCubemapSampler2, i.normal ) * 2.0f - 1.0f;
+#endif
+	
+	float3 spotColor = tex2D( SpotSampler, i.spotTexCoord );
+	float4 baseSample = tex2D( BaseTextureSampler, i.baseTexCoord );
+	float3 baseColor = baseSample.xyz;
+#if NORMALMAP
+	// wrap this!
+	float3 tangentPosToLightVector = texCUBE( NormalizingCubemapSampler, i.tangentPosToLightVector ) * 2.0f - 1.0f;
+	float nDotL = saturate( dot( tangentPosToLightVector, normal ) );
+#else
+	float3 worldPosToLightVector = texCUBE( NormalizingCubemapSampler, i.worldPosToLightVector ) * 2.0f - 1.0f;
+	float nDotL = saturate( dot( worldPosToLightVector, normal ) );
+#endif	
+	float3 outcolor;
+
+	outcolor = spotColor * baseColor * g_OverbrightFactor;
+
+#if !NOCULL
+	outcolor *= nDotL;
+#endif
+
+	// NOTE!!  This has to be last to avoid loss of range.
+	outcolor *= i.vertAtten;
+
+	return float4( outcolor.xyz, baseSample.a * i.vertAtten.a );
+}