Hi Mangu,
If the the center is what I look at, so basically it's the normal of the plane ( described by the screen) isn't it??
Both eye and center are points, not vectors. So center can't be the normal of the screen's plane... (center - eye).normalize() is.
J-S -- ______________________________________________________ Jean-Sebastien Guay jean-sebastien.g...@cm-labs.com http://www.cm-labs.com/ http://whitestar02.webhop.org/ _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org