declare const _default: "\n#ifdef STD_METALNESS_CONSTANT\nuniform material_metalness: f32;\n#endif\n\nfn getMetalness() {\n    var metalness: f32 = 1.0;\n\n    #ifdef STD_METALNESS_CONSTANT\n        metalness = metalness * uniform.material_metalness;\n    #endif\n\n    #ifdef STD_METALNESS_TEXTURE\n        metalness = metalness * textureSampleBias({STD_METALNESS_TEXTURE_NAME}, {STD_METALNESS_TEXTURE_NAME}Sampler, {STD_METALNESS_TEXTURE_UV}, uniform.textureBias).{STD_METALNESS_TEXTURE_CHANNEL};\n    #endif\n\n    #ifdef STD_METALNESS_VERTEX\n    metalness = metalness * saturate(vVertexColor.{STD_METALNESS_VERTEX_CHANNEL});\n    #endif\n\n    dMetalness = metalness;\n}\n";
export default _default;