added rudimentary point based example (mainly copy-paste, needs growing)
added rudimentary point based example (mainly copy-paste, needs growing)

simonkrogmann/openll,simonkrogmann/openll,cginternals/openll,cginternals/openll,cginternals/openll,simonkrogmann/openll,simonkrogmann/openll,simonkrogmann/openll,cginternals/openll,simonkrogmann/openll