I’m attempting to access the geometry from a ModelEntity loaded from a .usdz file. I’ve been able to get to the various AnyMeshBuffers for normals, positions, etc using the following code:

let meshModels = modelEntity.model!.mesh.contents.models
for model in meshModels {
    for part in parts {
        for (identifier, buffer) in part.buffers {
            
        }
    }
}

Inside the loop I can print out the AnyMeshBuffer in the debugger and see something like this:

▿ AnyMeshBuffer
  ▿ buffer : BufferEntry<FloatVector3Packed>
    ▿ id : "primvars:normals"
      - name : "primvars:normals"
      - isCustom : true
    - count : 10968
    - rate : RealityFoundation.MeshBuffers.Rate.vertex
    - elementType : RealityFoundation.MeshBuffers.ElementType.simd3Float
    - packed : true
    ▿ buffer : MeshBuffer<FloatVector3Packed>
      ▿ closure : Closures
        - getArray : (Function)
        - getIndices : (Function)
        - getData : (Function)
        - chunk : (Function)
      - elementType : RealityFoundation.MeshBuffers.ElementType.simd3Float
      - packed : true
      - count : 10968
      - rate : RealityFoundation.MeshBuffers.Rate.vertex

However, I haven’t been able to actually go any further. There’s a get function in AnyMeshBuffer that returns a MeshBuffer but I haven’t been able figure out what type to use.

Does anyone have an example showing how to access the actual geometry from a ModelEntity?