Hi Martin,
When using viewer->run() my scene appears ok and the camera/view appear to be outside of the cow, but when updating my scene manually using viewer->frame() I end up viewing inside the cow, how do I set my camera or view position when updating the frame manually, does viewer->run() calculate the view of the entire scene automatically? I am slight lost at the moment!!! :)
I saw you got it working, but just so you know there's no magic going on, here's the explanation for the above.
viewer->run() automatically attaches an osgGA::TrackballManipulator to the viewer. This in turn automatically calculates the view matrix based on the scene bounds on the first frame. To get the same behavior when using viewer->frame() you would just have to call viewer->setCameraManipulator(new osgGA::TrackballManipulator); .
Or you can modify the main camera's view matrix each frame before calling viewer->frame(). You can use viewer->getCamera()->setViewMatrixAsLookAt(...); for example, or build your own view matrix and set it with viewer->getCamera()->setViewMatrix(matrix); .
Hope this helps explain it a bit. J-S -- ______________________________________________________ Jean-Sebastien Guay [email protected] http://www.cm-labs.com/ http://whitestar02.webhop.org/ _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
