Is it possible to load Reality Composer Pro scenes from URL? (VisionOS)

Hi @El_Gato_Luchador

It is possible to load RealityKitContent scenes from a remote server. Here's an approach that I've had success with.

• Zip (the directory that contains your .realitycomposerpro file)
• Deploy this zip to your web server
• At runtime download the zip and load the desired usda into an entity

Limitation - Your project can use built in components, but not custom ones.

Here's a snippet to point you in the right direction:

struct ImmersiveView: View {
    func downloadBundle() async throws -> URL? {
        
        // Change to your domain
        if let modelUrl = URL(string: "http://<your url>/DownloadableStuff.zip") {
            if let (tempFileUrl, _) = try? await URLSession.shared.download(from: modelUrl) {
                let destinationUrl = FileManager.default.temporaryDirectory.appending(component: "\(UUID().uuidString).zip")

                if FileManager().fileExists(atPath: destinationUrl.path) {
                    print("File already exists [\(destinationUrl.path)]")
                    try FileManager().removeItem(at: destinationUrl)
                }
                
                try FileManager.default.moveItem(at: tempFileUrl, to: destinationUrl)
                let unzipDirectory = //use your favorite zip library to unzip the file
                
                return unzipDirectory
            }
        }
        
        return nil
    }

    var body: some View {
        RealityView { content in
            do {
                guard let bundleRoot = try await downloadBundle() else {return}
                
                // DownloadableStuff is the name of the zip file
                // I threw this together quickly, ideally this wouldn't be hardcoded here and in download bundle
                let usdaURL = "DownloadableStuff/Sources/RealityKitContent/RealityKitContent.rkassets/Immersive.usda"
                let url = bundleRoot.appending(path: usdaURL)
                let entity = try await Entity(contentsOf: url)
                
                content.add(entity)
            }
            catch {
                // show an error
                print(error)
            }
            
        }
    }
}