declare const _default: "\nvoid getReflDir(vec3 worldNormal, vec3 viewDir, float gloss, mat3 tbn) {\n    float roughness = sqrt(1.0 - min(gloss, 1.0));\n    float anisotropy = material_anisotropy * roughness;\n    vec3 anisotropicDirection = anisotropy >= 0.0 ? tbn[1] : tbn[0];\n    vec3 anisotropicTangent = cross(anisotropicDirection, viewDir);\n    vec3 anisotropicNormal = cross(anisotropicTangent, anisotropicDirection);\n    vec3 bentNormal = normalize(mix(normalize(worldNormal), normalize(anisotropicNormal), anisotropy));\n    dReflDirW = reflect(-viewDir, bentNormal);\n}\n";
export default _default;