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// Fragment shader for cube-texture reflection mapping
// Brian Paul
uniform samplerCube cubeTex;
varying vec3 normal;
uniform vec3 lightPos;
void main()
{
// simple diffuse, specular lighting:
vec3 lp = normalize(lightPos);
float dp = dot(lp, normalize(normal));
float spec = pow(dp, 5.0);
// final color:
gl_FragColor = dp * textureCube(cubeTex, gl_TexCoord[0].xyz, 0.0) + spec;
}
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