Currently when navigating a scene on a touch device, (perspective) camera rotation stops immediately when the touch event ends (user lifts finger). This often feels a bit too abrupt when swiping to turn the camera on mobile.
It would be a nice customization option to be able to add some “elasticity” (unsure about that term 
) when the camera rotation ends. Meaning that the rotation would gradually “ease out” (or some other easing function) to a full stop, instead of stopping immediately when the touch event ends.
This might be possible to do this with the current API, but I was unable to figure a solution.