Hi Robert, Nicolas nicely sumerised what I normally write in a couple of hundred lines, in your case you certainly have multiple independent views - the main view and the HUD view are conceptually different, so naturally these would lead to your suggestion 3 - i.e. using CompositeViewer.
In the case of HUD's you can just be a bit more lazy and treat the HUD as just an overlay and not really a full view in its own right - so conceptually you'd tell yourself you have one main view and just a bit of decoration on top, in which case you make an excuse for using a slave camera and use a standard Viewer. Viewer is only slightly more straight forward to work with than CompositeViewer so that there isn't really much to gain from this. Personally I would not recommend stick a HUD into a scene graph any more, as conceptually it's harder to claim that a HUD is part of the scene, however, there are some cases where you might actually want a HUD saved and loaded along with the rest of the scene graph, so again here you might want to bend the rules a little ;-) Since there is the same Camera setup required for almost all of these configurations it's actually not too hard to jump from one set up to the next so if you do go down one route then decide against it it shouldn't be too hard to refactor. Robert. On Mon, Apr 21, 2008 at 5:35 PM, Robert Balfour <[EMAIL PROTECTED]> wrote: > My present osg app configuration is a single view on a single > window/screen, with a hud camera overlay, which I simply added to the > scenegraph with a high renderbin#. > > Looking at osgHud example, it seems that this can also be configured by > adding the hud camera as a slave cam to the view. Or using Composite > viewer, adding the hud cam as a second view. > > Now if I go to reconfigure my app to work over two or more > windows/screens, which approach would be better: > (1)multiple cameras in the scenegraph, > (2)slave cameras on a single view, or > (3)multiple views (using composite viewer)? > > I'm leaning towards (3). > > Thanks. > > > Bob. > -- > Robert E. Balfour, Ph.D. > Exec. V.P. & CTO, BALFOUR Technologies LLC > 960 South Broadway, Suite 108, Hicksville NY 11801 > Phone: (516)513-0030 Fax: (516)513-0027 email: [EMAIL PROTECTED] > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
