declare const _default: "\nuniform float material_iridescenceThicknessMax;\n\n#ifdef STD_IRIDESCENCETHICKNESS_TEXTURE\nuniform float material_iridescenceThicknessMin;\n#endif\n\nvoid getIridescenceThickness() {\n\n    #ifdef STD_IRIDESCENCETHICKNESS_TEXTURE\n        float blend = texture2DBias({STD_IRIDESCENCETHICKNESS_TEXTURE_NAME}, {STD_IRIDESCENCETHICKNESS_TEXTURE_UV}, textureBias).{STD_IRIDESCENCETHICKNESS_TEXTURE_CHANNEL};\n        float iridescenceThickness = mix(material_iridescenceThicknessMin, material_iridescenceThicknessMax, blend);\n    #else\n        float iridescenceThickness = material_iridescenceThicknessMax;\n    #endif\n\n    dIridescenceThickness = iridescenceThickness; \n}\n";
export default _default;