Attached Link: http://www.e-onsoftware.com/Products/vue5/images/FunctionEditor.jpg

I would show you a screen shot- but I'm rendering a big radiosity scene and its taking a couple of hours- but here's info from e-on's website: "New Material and Function Editors, Parametric Mapping Use the Basic or the Advanced Material Editor, create incredibly complex procedural shaders using the all new SmartGraph Function Editor, and accurately fit textures onto objects using the new parametric mapping mode!"