This reverts commit 08343189dc.
While the feature is great, a number of issues have been found with the
implementation, and we need more time to resolve them.
So we roll this back for 4.5, to rework the feature for a later Godot
release.
When extracting meshes, materials and animations, always store the uid:// path as well as a res:// fallback.
When validating import settings, load the fallback path if the uid:// path fails to load.
Update save_to_file/fallback_path every import to keep the file path in sync with the uid.
Use UID hashing for meshes and animations.
This helps, for importers spitting out new resources to the res://
filesystem to actually hash them to generate deterministic UIDs.
This PR also fixes the determinism for translations.
During the import process, many importer nodes are replaced with their
engine node counterparts. For example, ImporterMeshInstance3D is
replaced with a MeshInstance3D node. Any meta data set on these
importer nodes, i.e. through a GLTFDocumentExtension, are lost during
the conversion. This change copies over any meta data set on these
importer nodes to their engine counterparts.
Reimplements "Remove Immutable" by comparing to the skeleton rest.
It is necessary to delay removing animation tracks until after the correct rest pose is calculated in rest-fixer.
Preserves the original implementation in the GLTFDocument / FBXDocument API for compatibility.
This avoids using convex decomposition every time collision is enabled
on a mesh, which can be extremely slow on complex meshes (such as entire
levels).
