Attached Link: http://www.renderosity.com/mod/gallery/index.php?image_id=486441

Ok then, I've dusted off my old copy of knotplot for a new project, but can't for the life of me remember how to make a second tube run round around the knot.

If you don't understand what I'm talking about take a look at AS's Red Dragon image (linked).

I've tried searching the forum but to no avail :( (ok, maybe lazy not going through all of the 6 pages of links it returned!) version of manual I have doesn't help much either!

Anyone able to help?

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Toolset: Blender, GIMP, Indigo Render, LuxRender, TopMod, Knotplot, Ivy Gen, Plant Studio.