[osg-users] TrackBall Rotation

Rajesh.R osgforum at tevs.eu
Tue Mar 31 04:16:53 PDT 2009


robertosfield wrote:
> The osgViewer::Viewer updateTraversal() copies the trackball matrix across to the viewers camera on each frame.  Go look at the code.  It doesn't use the "Rotation matrix" as there is no rotation matrix in the TrackballManipulator, just a complete 4x4 matrix.
> 
> Robert.
> 
>  ------------------
> Post generated by Mail2Forum



Thanks Robert.  My problem is that I have to work only on OSG 1.1 version. So  the query  posted was related to  1.1 verrsion.
Hence I could not find  UpdateTraversal call in 1.1.   

Can anyone help me  figuring out the way Viewer updates the input from trackball rotation.

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