Advance the active gesture from a pointer move. Updates the stored position
and the pointer in the array; touch moves are delegated to onTouchMove.
For a mouse: rotate accumulates an arcball quaternion into rotationDelta,
pan feeds the client delta to ctx.pan, and zoom converts the vertical
delta into a zoom-delta accumulation. No-op while disabled.
Advance the active gesture from a pointer move. Updates the stored position and the pointer in the array; touch moves are delegated to
onTouchMove. For a mouse: rotate accumulates an arcball quaternion intorotationDelta, pan feeds the client delta toctx.pan, and zoom converts the vertical delta into a zoom-delta accumulation. No-op while disabled.