[osg-users] zoom and orthographic projections
pmartz at skew-matrix.com
Thu Mar 26 07:42:01 PDT 2009
TrackballManipulator doesn't support zoom, it only supports moving the
viewpoint forwards & backwards, which has no visible effect in ortho.
You'll need to create an event handler and have it modify the camera
Skew Matrix Software
On Mar 26, 2009, at 8:35 AM, Cory Riddell <cory at codeware.com> wrote:
> I'm calling osg::Camera::setProjectionMatrixAsOrtho() and I'm
> getting an
> orthographic projection (this is, if I look directly at the face of a
> cube in wireframe, all I see is a square). I can rotate and pan, but
> zoom isn't working (I'm dragging the right mouse button).
> I want to allow the user to toggle between perspective and
> projections. Obviously I need to do more than just set the projection
> matrix, but I'm not sure where to start looking for clues. I've been
> searching on setProjectionMatrixAsOrtho. What should I be looking for?
> Cory Riddell
> osg-users mailing list
> osg-users at lists.openscenegraph.org
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