Hi Robert, Thanks for the advice, after using KdTree and LineSegmentIntersector, my update traversal rate reduce from 700ms to 60ms. Regards, John
----- Original Message ---- From: Robert Osfield <[EMAIL PROTECTED]> To: OpenSceneGraph Users <[email protected]> Sent: Tuesday, July 15, 2008 5:33:35 PM Subject: Re: [osg-users] Update Optimization Hi John, On Tue, Jul 15, 2008 at 2:48 AM, John Burgess <[EMAIL PROTECTED]> wrote: > > I've tried the KdTree but my update traversal rate is still the same as > before. Below is my code snippet to enable KdTree, am I doing the right > thing? > > osgDB::Registry::instance()->setBuildKdTreesHint(osgDB::ReaderWriter::Options::BUILD_KDTREES); > > // Load the terrain > > osg::Node* _terrain = osgDB::readNodeFile(terrainFile); You have to use osgUtil::IntersectionVisitor + LineSegmentIntersector to take advantage of the new KdTree intersections, the old (and deprecated) osgUtil::IntersectVisitor does not support KdTree intersection. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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