[osg-users] problems getting shadow demo to work

[Lee Butler]

I am trying to get shadows to work.  Alas, the example code in 
examples/osgshadow run with no arguments only produces a blue background 
and black geometry.    I'm running on Windows 10 and I have 2 different 
machines, one with Intel HD 5500 graphics and one with a GTX770.  A 
number of the other OSG programs work fine.  On the machine with the 
NVIDIA card, if I explicitly request scene four with the "-4" option 
then shadows appear in that scene, but only that one.  Any hints on how 
to debug this would be most welcome.

Lee