// 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
//

///////////////////////////////////////////////////////
/// SIMPLE DIFFUSE COLOR VERTEX PROGRAM ////////////
///////////////////////////////////////////////////////

vec4 position = gl_Vertex;
vec3 color = gl_Color.xyz;
vec2 uv = gl_MultiTexCoord0.xy;

out vec2 vUv0;
out vec2 vUv1;
out vec2 vUv2;
out vec2 vUv3;

uniform mat4 worldViewProj;
uniform float yOffset;
uniform float xOffset;
uniform float amount;

void main()
{
	gl_Position = (worldViewProj * position);
	vUv0 = uv + vec2(xOffset, yOffset) * amount;
	vUv1 = uv + vec2(xOffset, yOffset) * 2.0 * amount;
	vUv2 = uv - vec2(xOffset, yOffset) * amount;
	vUv3 = uv - vec2(xOffset, yOffset) * 2.0 * amount;
}