Hi Bart,
The node mask idea also works fine. However, I saw in osgViewer::View a function computeIntersections. The function gave me the impression that it could also fix my problem, without using a node visitor. My idea was to construct an empty NodePath, push the Cloth's node in this NodePath and then pass it to computeIntersections. Unfortunately, it always says there are now intersections. Am I missing something?
computeIntersections uses osgUtil::IntersectionVisitor under the hood, so it's just a convenience function. If you're using IntersectionVisitor and it's working for you, continue using it that way, you'll have more control.
And the reason it doesn't work for you is that you need a complete node path from your camera to the model for it to detect intersections correctly. Otherwise it uses the coordinates you give (say 300, 400 which you gave in window space) as object space coordinates... The camera is what gives the transformation from window space to world space, and then the traversal down from there gives the transformation from world space to object space.
So if you wanted to use computeIntersections(), you'd still have to set the node masks the way you are now, and use the version of computeIntersections that doesn't take a node path.
Hope this helps, 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
