Subject:
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Re: LSynth and string
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Newsgroups:
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lugnet.cad
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Date:
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Tue, 26 Apr 2005 15:39:23 GMT
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Viewed:
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1791 times
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In lugnet.cad, Larry Pieniazek wrote:
> In lugnet.cad, Don Heyse wrote:
> > In lugnet.cad, Steve Bliss wrote:
> > > In lugnet.cad, Larry Pieniazek wrote:
> > > > In lugnet.cad, Steve Bliss wrote:
> > > > > In lugnet.cad, Larry Pieniazek wrote:
> > > > > > In lugnet.cad, Kevin L. Clague wrote:
> > > > > > > LSynth implement's Larry's string cross section (no use ducking
> > > > > > > Larry) to create string using the hose synthesis class (this
> > > > > > > means splined strings with nice smooth curves).
> > > > > >
> > > > > > Umm... you REALLY should use a better string element than mine!
> > > > > > It is really not very accurate as it doesn't model the three strands
> > > > > > at all. It was just a quick hack, and it has fixed colors, if LEGO
> > > > > > ever do red or white string it won't work.
> > > > >
> > > > > Will it be a problem if LEGO ever do green string? ;)
> > > >
> > > > er... ya. Didn't they actually DO green string already or am I
> > > > misremembering?
> > > >
> > > > > At this time, using the best available string element seems like
> > > > > the way to go.
> > > > > AFAIK, Larry's string is the best.
> > > >
> > > > That's pathetic.
> > >
> > > Is this one any better?
> > > http://www.ldraw.org/cgi-bin/ptdetail.cgi?f=parts/x572b.dat
> > >
> > > It does have the advantage of actually being submitted to the Parts
> > > Tracker, and now it's certified for the next release.
> >
> > I like Larry's string part better for several reasons. His braid is
> > implemented as twisted surfaces rather than edge lines so it'll show
> > up in both LDRAW and POV. It also uses many less poly's so it'll draw
> > significantly faster. And finally, it's much shorter so it'll handle
> > tighter curves, maybe even knots.
> >
> > And FWIW I have spiderman hanging from a white string right in front
> > of me, so the color should be removed from the string element.
>
> Should the black be changed to "main color" but the grey left as is? My quick
> cheat was that by using grey with the black I was sort of, at low rez, mimicking
> the highlighting that you get from the string's surface (most string fibers are
> pretty reflective if you look at them really closely)
>
> But if a string is green, is grey the second color? or light green?
>
> Too bad we don't have a "second main" color!
>
> I'm not opposed to submitting this to tracker if people want, and making the
> changes that people think it needs. In theory. It's just actually doing that
> which has proven hard so if someone else wanted to take it under their wing,
> drop me a "line". (duck)
>
> ++Lar
LEGO string is a tri-twist. LSynth knows about twisting things (e.g.
minifig-chain). LSynth's twist amount/fixed segment is configurable.
We could decide what the sortest segment we would ever need and then maybe use
3, 6, or 9 cylinders to aproximate the tri-twist. With 6 or 9 cylinders, we'd
split the length in half, or thirds and have three cylinders per segment. We'll
also need 6 diagonally cut cylinders at the end of the segment to make the ends
cut off flat. Maybe we only need this for end-caps on the very ends of string.
This would bypass the two main color problem, but with an increase in part
complexity.
As for knots, maybe we could create an official part that is a string-knot.
Nasty to try to get LSynth constrains that packed together.
Kevin
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Message has 1 Reply:
 | | Re: LSynth and string
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| (...) That sounds like the best idea, if someone wants to make this file. If no one has the time or inclination, then let's not hold this process up. (...) That would be a good idea, too. Steve (hmm, I wonder why lugnet won't accept this post?) (20 years ago, 26-Apr-05, to lugnet.cad)
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Message is in Reply To:
| | Re: LSynth and string
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| (...) Should the black be changed to "main color" but the grey left as is? My quick cheat was that by using grey with the black I was sort of, at low rez, mimicking the highlighting that you get from the string's surface (most string fibers are (...) (20 years ago, 26-Apr-05, to lugnet.cad)
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