Normalise the viewVec in the vertex program. Only reference the colour texture when it is required.
Normalise the viewVec in the vertex program.
Only reference the colour texture when it is required.


git-svn-id: 4705079bc6b8aadf675e3696f5c015a6aa4916e3@2959 3c1deb5b-d424-0410-962d-aba41a686d42

OpenCMISS/zinc,hsorby/zinc,hsorby/zinc,OpenCMISS/zinc,OpenCMISS/zinc,hsorby/zinc,hsorby/zinc,OpenCMISS/zinc