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engines/hpl1/engine/impl/shaders/hpl1_refract_water.vertex

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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
+//
+
+///////////////////////////////////////////////////////
+/// REFRACTION VERTEX PROGRAM ////////////
+///////////////////////////////////////////////////////
+
+vec4 position = gl_Vertex;
+vec4 color = gl_Color;
+vec2 uv = gl_MultiTexCoord0.xy;
+vec3 normal = gl_Normal;
+
+out vec4 vColor;
+out vec2 vUv;
+out vec3 vNormal;
+out vec3 vEyePos;
+
+uniform vec3 EyePos;
+uniform mat4 worldViewProj;
+
+void main()
+{
+	gl_Position = (worldViewProj * position);
+
+	vColor = clamp(color, vec4(0.0), vec4(1.0));
+
+	vUv = uv;
+
+	vNormal = normal;
+
+	vEyePos = normalize(EyePos - position.xyz);
+}