Volume Rendering: consistency in interpolation varnames
Volume Rendering: consistency in interpolation varnames

--HG--
branch : v1-9

vancepym/ogre,vancepym/ogre,jhu-lcsr-forks/ogre,jhu-lcsr-forks/ogre,jhu-lcsr-forks/ogre,vancepym/ogre,vancepym/ogre,vancepym/ogre,jhu-lcsr-forks/ogre,jhu-lcsr-forks/ogre