I'm using the Apple RoomPlan sdk to generate a .usdz file, which works fine, and gives me a 3D scan of my room.
But when I try to use Model I/O's MDLAsset to convert that output into an .obj file, it comes out as a completely flat model shaped like a rectangle. Here is my Swift code:
let destinationURL = destinationFolderURL.appending(path: "Room.usdz")
do {
try FileManager.default.createDirectory(at: destinationFolderURL, withIntermediateDirectories: true)
try finalResults?.export(to: destinationURL, exportOptions: .model)
let newUsdz = destinationURL;
let asset = MDLAsset(url: newUsdz);
let obj = destinationFolderURL.appending(path: "Room.obj")
try asset.export(to: obj)
}
Not sure what's wrong here. According to MDLAsset documentation, .obj
is a supported format and exporting from .usdz
to the other formats like .stl
and .ply
works fine and retains the original 3D shape.
Some things I've tried:
- changing "exportOptions" to parametric, mesh, or model.
- simply changing the file extension of "destinationURL" (throws error)