I disagree :) You need 8 vec3's to do that, you need the 4 corners of any 2 opposite sides of the bounding box in order to have every side a different size
The osg::Bounding box only supplies 2 vec3's which effectively gives you 2 corner points and you cannot get the 8 corner points from 2, apart from a parallel rectangle ... Gordon __________________________________________________________ Gordon Tomlinson Product Manager 3D Email : gtomlinson @ overwatch.textron.com __________________________________________________________ (C): (+1) 571-265-2612 (W): (+1) 703-437-7651 "Self defence is not a function of learning tricks but is a function of how quickly and intensely one can arouse one's instinct for survival" - Master Tambo Tetsura -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jean-Sébastien Guay Sent: Thursday, October 02, 2008 10:52 AM To: OpenSceneGraph Users Subject: Re: [osg-users] Bounding Parallelepiped Hi Gordon, > Unfortunately, OSG does not directly support what you want as osg'S > bounding box, is as you have seen is a axially aligned min/max LL/UR That is not true. OSG's bounding box supports separate xmin/xmax, ymin/ymax, zmin/zmax values, so it can represent boxes that have different sizes on all axes. However, as Robert explained, OSG uses BoundingBox on Drawables, but BoundingSpheres on nodes. So if you just take the root node's bounding sphere and put that into a bounding box, of course you will get a bounding *cube*. ComputeBoundsVisitor is what you need. It will compute a minimal axis-aligned bounding box for all *drawables*, not using the bounding spheres. #include <osg/ComputeBoundsVisitor> osg::ComputeBoundsVisitor cbbv; node->accept(cbbv); osg::BoundingBox bb = cbbv->getBoundingBox(); It doesn't get much simpler than that. J-S -- ______________________________________________________ Jean-Sebastien Guay [EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ _______________________________________________ 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
