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uniform float crosslight;\n uniform float reflection;\n uniform float contrast;\n uniform float intensity;\n uniform float flatspot;\n\n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n #include \n\n void main() {\n\n \t#include \n\n vec3 eyeDirection = normalize(vViewPosition.xyz);\n vec3 reflectionDirection = reflect(eyeDirection, vNormal);\n float specularLightWeighting = dot(reflectionDirection, eyeDirection);\n float specularLightWeighting2 = dot(-reflectionDirection, eyeDirection);\n float directionalLightWeighting = max(dot(vNormal, eyeDirection), 1.0-reflection);\n vec3 lightWeighting = max(specularLightWeighting, directionalLightWeighting) + vec3(contrast) * specularLightWeighting;\n float crossLevel = crosslight > 0.0 ? dot(lightWeighting, crosslight * eyeDirection) : 1.0;\n float spot = 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