copy method
Implementation
@override
Mesh copy(Object3D source, [bool? recursive]) {
super.copy(source, false);
if (source is Mesh) {
if (source.morphTargetInfluences != null) {
morphTargetInfluences = source.morphTargetInfluences!.sublist(0);
}
if (source.morphTargetDictionary != null) {
morphTargetDictionary = json.decode(json.encode(source.morphTargetDictionary));
}
material = source.material;
geometry = source.geometry;
}
return this;
}