rotationPerSecond property
Sets the speed of auto-rotate, when enabled. Accepts values with units in degrees or radians (e.g., "30deg" or "0.5rad"), as well as percent (e.g. "-100%") of the default value of pi/32 radians.
Defaults to "pi/32 radians".
<model-viewer>
official document: https://modelviewer.dev/docs/#entrydocs-stagingandcameras-attributes-rotationPerSecond
Implementation
final String? rotationPerSecond;