Film crews record "takes" in my app: camera feed plus virtual AR content with timecode. On SceneKit I rely on a third-party Metal-layer hook (SCNRecorder), because ReplayKit captures overlay UI and adds a permission prompt — and RealityKit appears to have no capture API at all, making recording a regression in any SceneKit→RealityKit migration. Is there a recommended first-party way to record an AR view to a movie file, or should I file feedback?
Hi @McDuffman
I'm not aware of a first-party API to record a RealityKit view to a movie file on iOS today. ARView exposes snapshot(saveToHDR:completion:) for stills only, and ReplayKit is the only system-provided video path I know of. Please file feedback via Feedback Assistant.
In the meantime, this visionOS thread outlines an approach worth considering. It's visionOS-specific (uses CameraFrameProvider and computes a projective camera from intrinsics/extrinsics), but the same shape works on iOS with ARFrame/ARCamera standing in for the visionOS providers:
- Drive a separate RealityRenderer with a camera built from
ARCamera.projectionMatrix(...)andARCamera.transform. - Render into an offscreen
MTLTexture. - Composite over ARFrame.capturedImage.
- Feed the result to AVAssetWriter with a
kCMMediaType_TimeCodetrack.
