Hi Sounds like it could be a bounding sphere/box issue
How are you loading and creating the point cloud ? You might possibly have one or more errant points that are out side the range/volume of all the other points of a geode Depending on how your loading/creating the geodes, you should check the bounding box/spheres against the expected Extents of the point cloud for the geode etc... -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Steven Powers Sent: Thursday, April 24, 2008 12:08 PM To: OpenSceneGraph Users Subject: Re: [osg-users] Point cloud culling/paging I should mention that perfect square sections of the point cloud will be missing. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Steven Powers Sent: Thursday, April 24, 2008 11:39 AM To: OpenSceneGraph Users Subject: Re: [osg-users] Point cloud culling/paging Thanks for the reply. I thought the near clippling plane might have been the problem but its not clipping the terrain adjacent to the points. It also makes me wonder why this would only happen if the terrain is visible. I've set my near clipping plane to .1 and the far to 1000. The camera I'm using is the default one created by the viewer. double fovY, aspectRatio, near, far; mcam->getProjectionMatrixAsPerspective(fovY, aspectRatio, near, far); mcam->setProjectionMatrixAsPerspective(fovY, aspectRatio, .1, 1000); mcam ->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR); mcam ->setCullingMode(osg::CullSettings::NO_CULLING); Even with these settings the problem still occurs. Any other Ideas? -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Osfield Sent: Thursday, April 24, 2008 11:25 AM To: OpenSceneGraph Users Subject: Re: [osg-users] Point cloud culling/paging On Thu, Apr 24, 2008 at 4:22 PM, Robert Osfield <[EMAIL PROTECTED]> wrote: > HI Steve, > > It's much more likely that near plane clipping is at fault than > culling, unless your bounding volume for the point clouds is not > correct. I should clarify, when I said "near plane clipping is at fault" I didn't mean to imply that it might be a bug lurking, but that even normal near plane clipping by can result in parts of the scene looking like they are being culled. The near and far planes are totally under your control so if you want you can set them explictly to what you want. So rather than a bug is just an aspect of OpenGL/OSG rendering that one has to be aware of and mange accoridingly. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g _______________________________________________ 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
