How OSGB files implement the MeshGPUInstancing function

[LoongZP]

I have a glb model that uses EXTMeshGPUInstancing internally, how do I convert this model to osgb?
How to define OSG. Group()、osg. PagedLOD()、osg. MatrixTransform、osg. Geode、osg. Geometry's hierarchy? How to share OSG. Geometry?

[robertosfield]

For new development work you'd be better off using the VulkanSceneGraph. It now has a new glTF/glb loader that supports the glTF mesh extension so you require no work to start using models with instancing.

Instancing is support far better in Vulkan/VulkanSceneGraph than in OpenGL/OpenSceneGraph.