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Old 13-12-2002, 04:44 AM   #1
erikober
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Default Adding thickness to birail surface

How would you do it? I've been playing with bevel and not getting the result I want. It seems this would be easy to do.
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Old 13-12-2002, 09:32 AM   #2
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Can you elaborate further on this erikober?
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Old 13-12-2002, 10:19 AM   #3
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Sorry Undseth. Here is a screenshot. A birail surface created from 3 curves. I want it to have some thickness rather than the thin shell that it is now. Does this make sense?

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Old 13-12-2002, 12:36 PM   #4
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dunno how they do it in maya...but in rhino and max....i just add a lip using ruled surf from an offset curve...im sure this will work in maya as well
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Old 13-12-2002, 03:38 PM   #5
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hmm Do you wish to make a volume out of the three curves?

If, so, do you want sharp or round edges?
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Old 13-12-2002, 04:07 PM   #6
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Well since you offered, I'd love to know how to either
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Old 13-12-2002, 04:28 PM   #7
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It is easily answered... I don't know

edit:
I dont know any tool for converting a nurbs surface into an enclosed volume.

I would offset the surface both ways, with a positive and a negative offset value, and do some skinning on the edges in one way or another.
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Old 13-12-2002, 04:36 PM   #8
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convert to polys.

lol, but in Nurbs, if you construct your curves with the lip built in, it'd probably be easier
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Old 13-12-2002, 04:43 PM   #9
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Okay, now you've got me going

So the lip is built into the profile curves? And all three? How would you proceed after converting to polys, if you took that route?

thanks guys.
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Old 13-12-2002, 04:50 PM   #10
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What is a "lip" ???
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Old 13-12-2002, 04:54 PM   #11
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lip = border edge

If you convert to polys, simply extruding the faces should get you the results you want, if I understand you correctly.
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Old 13-12-2002, 05:51 PM   #12
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Well I've been playing with it, and I'll have to keep playing with it

After converting to polys, extruding faces is, so far, making a mess. I'm guessing I need to finesse the tessellate options when converting to make something that will extrude cleanly. It just seems that I should be able to build the thickness into the birail profile, but I haven't ever had any luck creating such a surface with closed paths to create that thickness. The tool only seems to like open paths with point to point connections to the rail curves.

I'll keep trying, but now I have to get back to work

Thanks again everyone!
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Old 13-12-2002, 06:23 PM   #13
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you can try selecting edge and extrude that.
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