Justin- Thanks for the quick response. One note:
When using osgUtil::SceneView, so it doesn't get applied to the camera, it gets applied to the scene itself, so... osgUtil::SceneView *scene = new osgUtil::SceneView; // stuff scene->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR); just FYI. Thanks again. Philip On 10/4/07, Vican, Justin E. <[EMAIL PROTECTED]> wrote: > > Hi Philip, > > I had the exact same issue about a year ago. When I added the earth to a > scene, my vehicle disappeared. It has to do with OSG computing the near/far > clip planes. When it does this, the smaller object often falls outside of > the computed viewing frustum. Make sure that OSG is not computing these for > you. In OSG 1.2, you could do this with: > > osgProducer::Viewer viewer(); > > … > > viewer.getCullSettings > ().setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR); > > > > I am upgrading to OSG2.2 this month, so I don't know how to do it in 2.2yet. > Something to the effect of: > > osgViewer::Viewer viewer(); > > … > > viewer.getCamera > ()->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR); > > > > > > Hope this helps, > Justin > > > > > > *From:* [EMAIL PROTECTED] [mailto: > [EMAIL PROTECTED] *On Behalf Of *Philip Hahn > *Sent:* Thursday, October 04, 2007 3:46 PM > *To:* OpenSceneGraph Users > *Subject:* [osg-users] relative size of objects in a scene graph > > > > Hey guys- > > Quick question, does the relative size of objects in a scene graph have > any effect on culling of objects? > > Basically I added a rather large object to a scene graph and now a > relatively small object no longer appears. The size difference is on the > order of 10^6. No code was changed in the visualization, save for adding the > larger node. If I manually reduce the size of the large object in half the > smaller one reappears, and no, according to the relative positions reported > by the PositionAttitudeTransforms it isn't encompassed by the large object. > > Thanks, > > Philip Hahn > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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