Hi Daniel 1. It is decided by the camera manipulator. Use viewer.setCameraManipulator() to set a user-defined manipulator. 2. Use LightSouce nodes to create lights. See osglight and other examples for details. 3. Use Switch, or setNodeMask(0) to prevent nodes from being traversed.
4. Why not? 5. I suggest viewer.computeIntersections(). And look into the osg-users archives is always good for us. :) Wang Rui 2009/7/10 Daniel Drubin <stargazer3...@gmail.com> > Greetings, > > I got a couple of (hopefully trivial) questions. I work with my own > viewer class which is derived from osgViewer::Viewer. > I use OSG 2.6.1. > > 1) When I start rendering, the camera is always initially placed at > some default position and direction, which apparently displays at the > center the largest visible object. Is there a way to set the camera as > I wish? > > 2) I add lights to the scene and disable the default OSG light, but > still get the default lighting and my lights don't have an effect. Is > there something trivial that I miss? > > 3) How can I make some objects invisible entirely for some period of > time? I use update callbacks. > > 4) Can I use update callback for Root node? > > 5) Can I determine which object is effectively clicked? Or in other > words, which object is the nearest to the camera at mouse pointer's > coordinates, if any? > > Thanks, > Daniel > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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