actually i should be considered as a newbie to osg, but as thinking of a WindowManager class, i would appreciate if it is a non-group node which only accepts "WindowNode"s as children. That would be very useful to have independent window managed areas on the whole 3d space instead of one window layer. This structure may look like geode/drawable fashion but it could be more "manage"able with callback system, which has already parameters like view/model/projection matrices... --ZΛHIЯ
On Tue, Nov 25, 2008 at 6:22 AM, Jean-Sébastien Guay < [EMAIL PROTECTED]> wrote: > Hi Jeremy, > > Why does the WindowManager have to know anything about cameras? >> > > I have the same question, but with different results: unless I've missed > something in your description, why does anyone need to know about the > camera? If you get your click events (which you act upon to get > intersections) through an event handler, then you can just get an osg::View* > with aa.asView(), which then has a camera. No one really needs to hold on to > a camera pointer. > > I would definitely go with calculating intersections directly through > osgUtil::IntersectionVisitor. You can use the constructor that takes one of > the WINDOW, PROJECTION, VIEW and MODEL enum values to easily construct the > right intersector. It should even work for 3D "widgets in space... space ... > space ..." :-) > > As for creating an ortho viewport, perhaps you can return an osg::Camera > with the right setup, and the user can then assign that to their > viewer/view/slave camera/scenegraph/whatever. It would be more general. > > That way you can remove the dependency between osgWidget and osgViewer (not > sure if that's the goal here, but if intersections was the only thing that > forced that dependency, I'd definitely remove it). > > Anyways, like the others who replied I don't really know the internals of > osgWidget, so perhaps there's something I've overlooked, but that's how I > see it at first glance. > > Hope this helps, > > J-S > -- > ______________________________________________________ > Jean-Sebastien Guay [EMAIL PROTECTED] > http://www.cm-labs.com/ > http://whitestar02.webhop.org/ > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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