Hi Gang,
I'm working on improving picking performance via KDTree, but I'm hitting an
issue that is driving me nuts: If I pick a node from directly above (e.g. +
Z axis) everything works great, and picking is *very* fast. If I pick at an
angle, (e.g. from eye(1,1,1)) then picking is fast, but not accurate - nodes
to the left, right, top, or bottom get picked instead of what I'm after.
Here is my KDTree Build function:
#ifdef USE_KDTREE
// Update the KDTree
osg::KdTree::BuildOptions kdTreeBuildOptions;
osg::ref_ptr<osg::KdTree> kdTree = new osg::KdTree();
if(kdTree->build(kdTreeBuildOptions, geometry))
{
geometry->setShape(kdTree.get());
}
else
{
LOG_MSG(logERROR) << "osg::KdTree::build() unsuccessful.";
}
#endif
Any suggestions?
cheers,
sean
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