Returns the orientation of the transform relative to its parent coordinate space, as of the specified time sample.
- iOS 9.0+
- macOS 10.11+
- tvOS 9.0+
- Model I/O
The time sample for which to request information.
The orientation, as a vector of Euler angles in radians, of the transform.
The three components of the rotation vector describe counterclockwise rotation around the corresponding axes. In a coordinate system where the negative z-axis direction is considered “forward”, these components are pitch (rotation about the x-axis), yaw (rotation about the y-axis), and roll (rotation about the z-axis).
Together with the translation, scale, and shear factors, rotation defines the local coordinate space for any object affected by the transform, relative to a parent coordinate space. To work with the complete transform, use the
Requesting a sample outside the time range clamps results to the
maximum sample. Some asset formats support continuous sampling, with interpolation for times between the samples stored in the asset; others are discrete. For an asset with discrete time information, requesting a sample time in between the samples stored in the asset returns data for the immediately preceding time.