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sanderdes
01-06-2004, 04:50 AM
Hi,
I've got a question for the LW-programmers:

Why isn't it possible to make a subpatch of a polygon with more than 4 points ? Isn't here just some algorithm for that ?

If it is possible:
- Why doesn't LW have it yet ?
- Will it available in LW8 ?

Sander

wizlon
01-06-2004, 04:54 AM
(':rolleyes:')

Hervé
01-06-2004, 05:25 AM
I am sure it is sooooooooo complexxxxxx, just talking of it had killed programers in the past... he he....

sanderdes
01-06-2004, 06:12 AM
LOL,

but still I'm curious....If anyone has an answer, please be so kind to tell me :D

Karmacop
01-06-2004, 07:34 AM
It's the algorithm. It on;y works for 3 and 4 points. To support more than 4 points Lightwave's subpatch algorithm would need to be changed.

Capt Lightwave
01-06-2004, 08:37 AM
Originally posted by Karmacop
It's the algorithm. It on;y works for 3 and 4 points. To support more than 4 points Lightwave's subpatch algorithm would need to be changed.

Yes, and....

art
01-06-2004, 08:55 AM
It would be great (imo) if we had the old algorithm available (for compatibility sake and what not) as well as new algorithm(s).

I tried to search google for subpatching 5+ polygon algorithms but havent found anything useful. I just want to see how it works, out of curiosity. Does anyone have any interesting links?

wizlon
01-06-2004, 09:29 AM
here's a couple:

http://www.ke.ics.saitama-u.ac.jp/xuz/mid-subdivision.html

http://www.scg.uwaterloo.ca/~hqle/subdivision/index.html

http://www.cs.berkeley.edu/~job/Classes/CS283/TurnedIn/***2/ToddKosloff/

http://symbolcraft.com/graphics/subdivision/index.html

Castius
01-06-2004, 09:33 AM
you want to know why? it's very simple. To smooth an ngon nicely it needs to generate mesh. layout doent' support that yet.

art
01-06-2004, 11:30 AM
Thanks for the links wizlon.