OpenGL shading language demos

Well, so far all this page has got to show for itself is a Qt port of the procedural brick shader demo from chapter 6 of the OpenGL® Shading Language, Second Edition book by Randi J. Rost. As Randi suggests in that chapter, I've added the Z dimension:

If you want to take a closer look, you can find the code on Github here.

More to come on this page when I get around to it.