Changed the spherical display intensity map set up to use colours rather than a second texture unit.
Changed the spherical display intensity map set up to use colours rather than
a second texture unit.


git-svn-id: 23b6355f2bb369032457de4eb5f713ee134f73a8@7582 16af8721-9629-0410-8352-f15c8da7e697

joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg