Class SerializationContext

the url of the glb that is currently being loaded

holds information if a field was undefined before serialization. This gives us info if we might want to warn the user about missing attributes

DOCUMENT serialization hook: encode an Object3D reference as a project-document value ({ ref, address? }) instead of a glTF node index. Set by document writers (the editor's def serialization); when it returns undefined the field is dropped. Takes precedence over objectToNode in the ObjectSerializer.

the serializable attribute for this field (target.path)