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VARYING vec3 vNormal;
void MAIN()
{
ivec2 iSize = textureSize(AO_TEXTURE, 0);
vec2 smpUV = (gl_FragCoord.xy) / vec2(iSize);
float aoFactor = texture(AO_TEXTURE, smpUV).x;
vec3 c = vec3(0.1);
c += vec3(1.0, 0.0, 0.0) * vec3(max(0.0, dot(normalize(vNormal), vec3(0.0, 0.3, 1.0))));
FRAGCOLOR = vec4(aoFactor * c, 1.0);
}