Hi Paul, On Thu, Jan 29, 2009 at 4:10 AM, Paul Pocock <[email protected]> wrote: > Am I to assume correctly that osgViewer::Viewer (slave cameras) as > opposed to CompositeViewer is more appropriate for a cave or powerwall > environment?
This is correct. Although you could have a CompositeViewer that has View with slaves which render a cave/powerwall, and another View that render in insert into it, or a side display. All the slave functionaity in Viewer comes from osg::View, so it's all identical to what CompositeViewer can do, except the later can do one or many of them. In you case Viewer is probably sufficient for your needs, but even if you did end up using CompositeViewer, the apporpriate thing to do would still be use a View containing slave cameras for a cave/powerwall setup so this part wouldn't change. > Do the slave cameras inherit the master cameras ProjectionMatrix/View > Frustrum or do these need to be setup independently? The can do both. But default the slave cameras will inherit the part projection and view matrix, then multiply these by the offset matrices that you pass in when you add slaves. You can mix and match different types of slaves as well - for instance the osgViewer::View::setUpViewAs3DSpehericalDisplay has six RTT slave Camera that render to a cube map that are relative to the master Camera, and then one post render slave Camera that works in absolutely reference frame which does the final distortion correction render using the cube map. The Camera::setReferanceFrame(..) method on the slave controls where the salve inherits the view and project matrix or not. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
