Pigment Pattern Isosurface

I was looking through the "functions.inc" file the other night when I noticed that a function can be based on a evaluating a pigment. I knew you could create a pigment based on the object pattern, so...

I thought it might be possible to create an isosurface that evaluates an object pattern pigment.

A quick question on the news groups and the kind people there told me it would be possible but slow.

So I can now build a complex CSG shape, put it in an object pattern pigment, put that in a function and have an isosurface built to my specs.

But!, you ask , why would you do that if it's slow and you have already buit the shape in CSG? The answer is that I could add noise to the pattern. This might work well for a weathered statue. So I'll be giving this a try in the next couple of days, and let you know how it turns out.