declare const _default: "\n#ifdef STD_METALNESS_CONSTANT\nuniform float material_metalness;\n#endif\n\nvoid getMetalness() {\n    float metalness = 1.0;\n\n    #ifdef STD_METALNESS_CONSTANT\n    metalness *= material_metalness;\n    #endif\n\n    #ifdef STD_METALNESS_TEXTURE\n    metalness *= texture2DBias({STD_METALNESS_TEXTURE_NAME}, {STD_METALNESS_TEXTURE_UV}, textureBias).{STD_METALNESS_TEXTURE_CHANNEL};\n    #endif\n\n    #ifdef STD_METALNESS_VERTEX\n    metalness *= saturate(vVertexColor.{STD_METALNESS_VERTEX_CHANNEL});\n    #endif\n\n    dMetalness = metalness;\n}\n";
export default _default;