Hello, I have a 3D model viewer using a TrackballManipulator for manipulating my view with the mouse.
I created a custom HUD that has a simple sphere representing a trackball, but this is extremely painful, and I'm almost sure something like this already exists anywhere. The idea is to have a trackball similar to this one url <https://www.google.pt/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwjO_fKgtZnPAhWIShQKHSCzCvAQjRwIBw&url=http%3A%2F%2Fmadscientistsecretbase.com%2F%3Fpage_id%3D5&bvm=bv.133178914,d.ZGg&psig=AFQjCNEATP4Qi7soiP_Y78JOIW-txFDjAg&ust=1474305259251619> like in Blender, Catia, etc. I would also like to be able to select an axis to lock and only rotate about that axis, with the mouse. Does anyone know anything similar to this?
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