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


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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