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View Full Version : How to unwrap a knot...

LemonNado
09-07-2006, 12:28 AM
I have a problem...
I have a knot which is pretty much a bend cylinder. Sort of a celtic knot. On single loop. That stupid thing has all the poly's mapped to the same location. So Every Poly has the entire texture. Ok for plain materials, bad for anything else. Now I wish to apply a wood texture... and for that I have to unwrap that thing. How can I unwrap that knot? Is there a prog which would 'stretch' it out to a long cylinder and apply the mapping from there? When I split it at an edge loop and simply cut it radial at one part.... then all progs I tried to auto unwrap it died in various unexpected ways... Grrrrr.

Cheers
Rainer
JeremyW
09-07-2006, 01:08 AM
I don't know anything about unwrapping, but what I would do is create the knot myself from a cylinder, using what ever deforming operations are necessary. That way, you've got good UV's to start with.
LemonNado
09-07-2006, 02:13 AM
I don't know anything about unwrapping, but what I would do is create the knot myself from a cylinder, using what ever deforming operations are necessary. That way, you've got good UV's to start with.

Good idea. Let's start with a one mile long cylinder and bend it into submission 8-). I might have understated the complexity of my knot in question:

http://www.neophysics.com/images/knot.jpg
BUT you might have come up with a great idea. I may be able to lift a curve of an edge loop and then extrude a cylinder along that somehow and use those UV's then.... I'll keep you posted. Now I have to find a way to generate a curve which runs in the center of my knot... grrrrrr.

Rainer
JeremyW
09-07-2006, 03:47 AM
It's a repeating tile. I did this in 5 minutes. Go for it.
pzdm
09-07-2006, 05:30 AM
Hi, did you try "my way"? Select one polygon strip, disconnect them, select one border - points loop of this polygons strip and thene select neighbouring polygon strip > convert to point selection and then Optimize your model. This will lead to model with one disconnecting loop. Create other disconnection in "ring" direction too > Mapping and Relax, relax, relax...
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