RealityKit

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Simulate and render 3D content for use in your augmented reality apps using RealityKit.

RealityKit Documentation

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Change zFar in RealityView
I am working on a RealityView on iOS 18 that needs to render objects farther away than 1,000 meters. My app is used outside in open areas. I am using RealityView with content.camera = .spatialTracking and I have turned off occlusion, collisions, and plane detection with a simple scene understanding like this. let configuration = SpatialTrackingSession.Configuration( tracking: [.camera], sceneUnderstanding: [], //We don't want occlusions, collisions, etc camera: .back) let session = SpatialTrackingSession() if let unavailable = await session.run(configuration) { print("unavailable \(unavailable)") } Is this possible with spatialTracking with RealityView or with ARView? I have my RealityView working on visionOS inside an ImmersiveSpace. On visionOS I don't have the camera as a passthrough, it is virtual scene and it has wold tracking set up via the WorldTrackingProvider and I can render objects father away than 1000 meters. I would like to do the same thing on iOS. I don't need to have the camera pass through, but I do need to have the world tracking. I see that PerspectiveCameraComponent lets me set the near and far clipping planes, but I don't see how I can use that camera with world tracking.
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Oct ’24
Dynamic loading various USDZ files
I have various USDZ files in my visionOS app. Loading the USDZ files works quite well. I only have problems with the positioning of the 3D model. For example, I have a USDZ file that is displayed directly above me. I can't move the model or perform any other actions on it. If I sit on a chair or stand up again, the 3D model automatically moves with me. This is my source code for loading the USDZ files: struct ImmersiveView: View { @State var modelName: String @State private var loadedModel = Entity() var body: some View { RealityView { content in if let usdModel = try? await Entity(named: modelName) { print("====> \(modelName) : \(usdModel) <====") let bounds = usdModel.visualBounds(relativeTo: nil).extents usdModel.scale = SIMD3<Float>(1.0, 1.0, 1.0) usdModel.position = SIMD3<Float>(0.0, 0.0, 0.0) usdModel.components.set(CollisionComponent(shapes: [.generateBox(size: bounds)])) usdModel.components.set(HoverEffectComponent()) usdModel.components.set(InputTargetComponent()) loadedModel = usdModel content.add(usdModel) } } } } I only want the 3D models from the USDZ files to be displayed later, and later on, to be able to move them via gestures. Moving the models is step 2. First, I need to make sure the models are displayed correctly. What have I forgotten or done wrong?
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Oct ’24