In Image_cache need to initialise extra texture coordinates if the xi_texture_coordinate field has more components than our image dimension.
In Image_cache need to initialise extra texture coordinates if the xi_texture_coordinate field has more components than our image dimension.


git-svn-id: 4705079bc6b8aadf675e3696f5c015a6aa4916e3@4477 3c1deb5b-d424-0410-962d-aba41a686d42

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