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Zed Gimbal
03-03-2009, 07:53 AM
I'm struggling to find a good and relatively easily understood example code for a virtual trackball rotation controller. Does anyone have any recommendations?

I've read a bit about quaternions. If they are involved in virtual trackball implementation, then hopefully I can learn about those through the example code as well.

Thanks in advance from a relative newbie to OpenGL!

Nicolai de Haan Brøgger
03-03-2009, 08:06 AM
Maybe this http://image.diku.dk/research/trackballs/index.html

Zed Gimbal
03-11-2009, 08:15 AM
Thanks! The link was very helpful.