Well, i tried it in osgviewer and there was no clipping. any ideas as to what might cause this in my app? Thanks, -Ben
________________________________________ From: osg-users-boun...@lists.openscenegraph.org [osg-users-boun...@lists.openscenegraph.org] On Behalf Of Robert Osfield [robert.osfi...@gmail.com] Sent: Saturday, February 28, 2009 2:49 AM To: OpenSceneGraph Users Subject: Re: [osg-users] strange object clipping Hi Ben, The visuals do look like they suggest a problem with the near/far computation or clamping of near/far. I'm not aware of a bugs in the bounding box calculation of ShapeDrawable, but it could certainly be an area to look into. Could you output the model to .osg, test this in osgviewer to see if the problem still exists and if it does then post this model so others can test against it. Robert. On Fri, Feb 27, 2009 at 9:10 PM, Ben Axelrod <baxel...@coroware.com> wrote: > > Hi, > > We are seeing some strange clipping of objects in OSG 2.6. It happens with > large numbers of ShapeDrawable boxes and spheres. What should be displayed > in the attached images is a large rectangular grid of small, colored cubes. > > The structure of our osg tree looks like: > > osg::Group > | > \|/ > osg::MatricTransform > | > \|/ > osg::Geode > | | | > \|/ \|/ \|/ > > Multiple ShapeDrawable () > > > Our camera is an osgViewer. > > "cube1.png" demonstrates the clipping we are seeing. the cubes are sliced, > as if by the near clipping plane of the camera. > > "cube2.png" has the camera and objects in the exact same positions, except a > large cone shape is added. You can see that the clipping is gone. We > believe this is due to some bounding box miscalculations by OSG. When the > other object is added, the bounding box can be calculated properly, so the > cubes are not cut. > > Any ideas on what is causing this issue and what can possibly be done about > it? > > I have heard that ShapeDrawables is not very efficient, and is only meant for > fast debugging. Will converting the ShapeDrawables to straight Geometry fix > it? > > Thanks, > -Ben > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
