Hi Cory, Orthographics views don't function like perspective ones, when you move near to the center, nothing actually changes w.r.t your view. This is normal and what you shoudl expect.
If you want to "simulate" a perspective view by moving the left, right, top and bottom values of the projection matrix in then it "kinda" works, but and this is a HUGE BUT, you then hit issues what to do about the near and far plane. Soon you'll be trying your really hard to just and get get a orthographic view and perspective to kinda work the same but you'll never get to where you want to get to, perhaps some day after a few weeks of trying you might just come to realization that it can't be done, orthographic views just should never be used like perspetive one. So... rather than waste much of your life, and much of our time trying to support you give up now. Learn that orthographic views are best kept for external views of models where the whole model can be seen, or map views where no issues with the near/far planes exist. Once you get to this point life will be good once more. Robert. On Thu, Mar 26, 2009 at 2:35 PM, Cory Riddell <c...@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 orthographic > 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? > > Thanks, > Cory Riddell > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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