export const EXT_MESH_GPU_INSTANCING = 'EXT_mesh_gpu_instancing' ; export const EXT_MESHOPT_COMPRESSION = 'EXT_meshopt_compression' ; export const EXT_TEXTURE_WEBP = 'EXT_texture_webp' ; export const KHR_DRACO_MESH_COMPRESSION = 'KHR_draco_mesh_compression' ; export const KHR_LIGHTS_PUNCTUAL = 'KHR_lights_punctual' ; export const KHR_MATERIALS_CLEARCOAT = 'KHR_materials_clearcoat' ; export const KHR_MATERIALS_EMISSIVE_STRENGTH = 'KHR_materials_emissive_strength' ; export const KHR_MATERIALS_IOR = 'KHR_materials_ior' ; export const KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS = 'KHR_materials_pbrSpecularGlossiness' ; export const KHR_MATERIALS_SHEEN = 'KHR_materials_sheen' ; export const KHR_MATERIALS_SPECULAR = 'KHR_materials_specular' ; export const KHR_MATERIALS_TRANSMISSION = 'KHR_materials_transmission' ; export const KHR_MATERIALS_UNLIT = 'KHR_materials_unlit' ; export const KHR_MATERIALS_VOLUME = 'KHR_materials_volume' ; export const KHR_MATERIALS_VARIANTS = 'KHR_materials_variants' ; export const KHR_MESH_QUANTIZATION = 'KHR_mesh_quantization' ; export const KHR_TEXTURE_BASISU = 'KHR_texture_basisu' ; export const KHR_TEXTURE_TRANSFORM = 'KHR_texture_transform' ;