Buffer View and Accessor Reuse: The exporter reuses buffer views and accessors whenever possible. Ex. Vertex attributes are packed into a single buffer view and meshes with the same geometry, but different materials reuse accessors.
Mesh Instancing: When multiple nodes have the same mesh, the exporter exports a single mesh definition and references it in each node.
Multiple UV Sets: The exporter can output materials which use multiple UV sets.
I believe all three of these are supported, but we need to do some testing and confirm that these features work. If any of these features are found to be not supported or not working correctly, a new issue should be created for it.
The glTF ecosystem matrix has added three new columns:
Buffer View and Accessor Reuse: The exporter reuses buffer views and accessors whenever possible. Ex. Vertex attributes are packed into a single buffer view and meshes with the same geometry, but different materials reuse accessors.Mesh Instancing: When multiple nodes have the same mesh, the exporter exports a single mesh definition and references it in each node.Multiple UV Sets: The exporter can output materials which use multiple UV sets.I believe all three of these are supported, but we need to do some testing and confirm that these features work. If any of these features are found to be not supported or not working correctly, a new issue should be created for it.