# pose The pose of this immersive camera. ``` var pose: Pose3DFloat ``` ## Discussion The rotation component of the pose decomposes into three axis rotations, applied intrinsically in this order: 1. **Roll** — rotation around the camera’s local z-axis (the optical axis; the camera looks toward −Z). 2. **Yaw** — rotation around the camera’s (post-roll) local y-axis. 3. **Pitch** — rotation around the camera’s (post-roll, post-yaw) local x-axis (the right / baseline axis). This matches Spatial’s `EulerAngleOrder.xyz`, which composes intrinsically as roll, then yaw, then pitch (equivalently, extrinsically as pitch, then yaw, then roll). The composition order matters — the same angle values under a different order produce a different orientation. In particular, this does **not** match `RealityKit.Transform(pitch:yaw:roll:)`, which composes intrinsically as yaw, then pitch, then roll. ### Stereo fusion constraints The rotation component is applied uniformly to both eyes as an image reorientation; it does not remap eye assignment, reproject parallax, or account for the stereo baseline encoded in the source video. For stereo (`stereoCamera`) content, only rotations that keep the stereo baseline horizontal in viewer space produce comfortable fusion: - **Roll** — rotates the baseline out of horizontal, creating vertical disparity between eyes. Small roll angles cause eye strain; larger angles (≥ a few degrees) prevent fusion entirely. - **Yaw** — may be safe in some circumstances but increasingly likely to cause anomalous parallax perception at larger angles. - **Pitch** — the baseline is the rotation axis and the invariant of the rotation depends on the projection. - Any mixed rotation that decomposes to a non-zero roll component exhibits the same failure proportional to the roll magnitude. For mono content there are no stereo constraints and the full rotation space is valid. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)