Loads one manifest-backed XGF chunk into a SceneModel.
Missing dependency chunks are resolved through options.manifests and
loaded before the requested chunk. Handled validation and dependency
failures are reported on the Scene's error channel instead of throwing.
Loads multiple manifest-backed XGF chunks, prefetching their file data with bounded concurrency before applying them in dependency-safe order.
Unloads one previously-loaded chunk from a SceneModel.
References-only chunks release their objects/meshes/transforms while shared assets stay alive. Asset-library chunks are refused while loaded chunks still reference their assets.
Manifest-aware loader for XGF v2 streaming chunks.
This composes XGFLoader; it does not extend
ModelLoaderbecause it is not a single-file parser. It resolves dependency manifests/file data, loads missing asset-library chunks, then applies references-only chunks.