Anyone create a trackball camera?

Jul 26, 2011 at 5:43 PM

I've been struggling to get a trackball camera created and wondered if anyone else had accomplished it.  Setting interaction=true gives really close behavior to what I want.  The only issue is you must click on a node to start the rotation behavior.  I'd like to just click the bottom of the screen (for example) and drag up.  I feel like someone must have implemented this.  Seems like a typical model viewer application requirement.  Any help would be great.