This is a follow-on to a previously completed GCI task:

http://www.google-melange.com/gci/task/view/google/gci2012/8082205

Your task is to publish the tutorial to our wiki at http://brlcad.org/wiki/Tutorial/Shaders

Be sure to add all images, properly align images to the left/right/center so that the story flows well, and add a link to the tutorial on the main wiki page.