Hi Lalit, In the past I've tackled problems like drawing from mouse coords into 3D by creating a ray from the mouse coords and then intersecting this with a plane. The maths for computing the intersection point can be handled by the osg::Plane class, there is no need to use the high level scene graph intersection routines.
For you application only you will be able to answer how you want to constrain the points you want to generate - would a plane that is orthogonal to the image plane and going through the mid point of the data cloud be appropriate? You'll need to decide yourself what is appropriate. Robert. _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
