Well, here's my version after chopping up the function into smaller
pieces. I hit the isosurface function parser limit several year ago with
the version that couldn't parse user functions, so I had to wait a
couple of years before I could try some complex landscapes!

I'll put the code in p.t.s-f (and I'll just do a copy-and-paste this
time after getting a couple of agrieved posts for putting up
attachments) as a reply to the post there.

	Bye for now,
		Mike Andrews.

TonyB wrote:
> 
> Hello. Using the same method as before, and after having battled against the
> limitations of the isosurface patch, here is the end result. Again, this is
> just demonstrative, and so is relatively simple. This is a torus, with 4
> boxes, 2 at the top and bottom and 2 at either sides. I hope you like it and
> see the potential for this neat multiplication stuff.
> 
> PS: Yes, I had to forget about the cylinders to make it short enough. =(
> 
>  [Image]

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