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engines/hpl1/engine/impl/shaders/hpl1_Diffuse_Light.fragment

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+// Copyright 2006-2010 (C) - Frictional Games
+//
+// This file is part of HPL1 Engine
+//
+// For conditions of distribution and use, see copyright notice in LICENSE-shaders
+//
+
+///////////////////////////////////////////////////////
+/// DIFFUSE LIGHTING FRAGMENT PROGRAM /////////////////
+///////////////////////////////////////////////////////
+
+in vec4 vLightColor;
+in vec2 vUv;
+in vec3 vLightDir;
+
+OUTPUT
+
+uniform sampler2D tex0; //diffuseMap
+uniform samplerCube tex2; //normalCubeMap
+uniform sampler1D tex3; //falloffMap
+
+void main()
+{
+	float attenuation = texture1D(tex3,dot(vLightDir,vLightDir)).x;
+
+	vec3 lightDir = (2.0*textureCube(tex2,vLightDir)-vec4(1.0)).xyz;
+
+	outColor.xyz = attenuation * texture(tex0, vUv).xyz * vLightColor.xyz * dot(lightDir, vec3(0,0,1));
+	outColor.w = 0.0;
+}