Add export_preserialize
to the GLTF export process
#79623
Merged
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This PR adds a new extension hook to the GLTF export process,
_export_preserialize
. This runs each time we serialize to a buffer or file. This allows extension authors to alter the data between converting Godot nodes to the state data, and converting the state data to JSON. This is also the earliest opportunity to read the destination file name and path.