the timeline editor feels often unfinished. Setting the time cursor to a different time is often not reflected in the preview. You either have to click a clip or wait. sometimes the cursor even disappears, eg. when switching tabs to shadergraph Not being able to select and move multiple clips is missing. There is also no snapping to clips or time cursor as found in other tools. And then there is the timeline compile bug https://developer.apple.com/forums/thread/810868 The timeline as it is, is a good start but it definitely needs some more love to be on par with other commercial tools like Unity or After Effects.

Is there a way to stop a Reality Composer Timeline ? And restart it later on. For me it looks like you can only start a timeline via notification. and related to it. i have the issue that if the notification to start a certain timeline happens twice or more, it looks as if the timeline actually plays multiple times and animations start to glitch and jump. what is best practise here to avoid this.

Hello, I am experiencing an issue where lighting is disabled within a Portal Component specifically when using Progressive or Full Immersion styles in visionOS 26.2. [Steps to Reproduce] Create a scene in Reality Composer Pro with custom lighting (Directional Light, IBL, etc.) and load it as an Entity. Add a PortalComponent to this Entity. Observe the Entity in an ImmersiveSpace under different Immersion Styles. [Observed Behavior] Mixed Immersion: Lighting works as expected.Progressive / Full Immersion: Lighting is disabled, causing the content to render incorrectly. [Additional Context] Without PortalComponent: The same Reality Composer Pro scene renders lighting correctly across all Immersion Styles (Mixed, Progressive, and Full).Regression: In applications built with Xcode 16.4 / visionOS 2.5, lighting inside the Portal functioned correctly. This issue appears to have emerged with Xcode 26.2 and visionOS 26.2. [Questions] Is the disabling of lighting inside Portals during Full/Progressive Immersion an intended architectural change or optimization in visionOS 26.2? Are there any workarounds, such as specific PortalComponent configurations or new API flags, to re-enable lighting in these immersion modes? Thank you.

Hi, we have been working on an application that attaches a hand model to the users hands. Apple provides an animating hand models in visionOS project that is a useful starting point. https://developer.apple.com/documentation/visionOS/animating-hand-models-in-visionOS We have been trying to create our own hand model to attach but have had some issues with how it is attaching to the hand. For our hand model we want to include the forearm all the way up to the users elbow. I have attached a sample project of what our code currently looks like so you can run it. Just select show immersive space to attach the models. The left hand model is the space glove that we were trying to mirror. The right hand model is our model that we have been using. I have mapped each of the joints to the pertaining joint name on our model. The first issue we are having seems to be based around the placement of the forearm. It attaches itself at the wrist. The second issue seems to be around rotation. Our team is looking for some guidance on what needs to change in order to map this model correctly. Thanks in advance!

Hi Apple Developer Forums, I'm developing a visionOS video streaming app that uses a custom immersive cinema experience with RealityKit. I have a question about enabling video reflections in an immersive environment. My Current Implementation I'm using VideoMaterial with AVPlayer to display video on a ModelEntity plane in an immersive space: // Create screen mesh let screenMesh = MeshResource.generatePlane( width: VideoTheater.screenWidth, height: VideoTheater.screenHeight, cornerRadius: 0.0 ) let screenEntity = ModelEntity(mesh: screenMesh) // Apply VideoMaterial with AVPlayer screenEntity.model?.materials = [VideoMaterial(avPlayer: player)] The video renders correctly in the immersive space, but I don't see any video reflections on surrounding surfaces. Apple's Documentation Approach According to the documentation at https://developer.apple.com/documentation/visionos/enabling-vid eo-reflections-in-an-immersive-environment, the recommended approach uses: AVPlayerViewController for video playback dockingRegion modifier to specify where the video should appear The system automatically handles reflections My Question Is using AVPlayerViewController with dockingRegion the only way to get video reflections in an immersive environment? Or is it possible to enable reflections when using VideoMaterial directly with RealityKit's ModelEntity? My app requires a custom immersive cinema experience with: Custom screen positioning and scaling Danmaku (bullet comments) overlay Custom gesture controls HDR/Dolby Vision support Switching to AVPlayerViewController would require significant architectural changes, so I'd prefer to keep my current VideoMaterial approach if reflections can be enabled somehow. If VideoMaterial cannot produce reflections, are there any alternative approaches to achieve diffuse video reflections with a custom RealityKit setup? Environment visionOS 2.x RealityKit AVPlayer with custom resource loader (for DASH streams) Thank you for any guidance!