declare const _default: "\nfloat getFalloffWindow(float lightRadius, vec3 lightDir) {\n    float sqrDist = dot(lightDir, lightDir);\n    float invRadius = 1.0 / lightRadius;\n    return square(saturate(1.0 - square(sqrDist * square(invRadius))));\n}\n\nfloat getFalloffInvSquared(float lightRadius, vec3 lightDir) {\n    float sqrDist = dot(lightDir, lightDir);\n    float falloff = 1.0 / (sqrDist + 1.0);\n    float invRadius = 1.0 / lightRadius;\n\n    falloff *= 16.0;\n    falloff *= square(saturate(1.0 - square(sqrDist * square(invRadius))));\n\n    return falloff;\n}\n";
export default _default;