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 16:17:56 GMT
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Viewed:
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1328 times
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In lugnet.cad, Timothy Gould 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.
>
> I can think of a way to deal with different coloured strands. You rotate each
> element (with the multiple-colours defined on it) around the gradient of the
> position of each element, increasing the angle as you go along. I can send
> details on how to do this if anyone likes. That way, you can have a twisted
> string with multi-coloured strands.
I know I've seen black and red LEGO string, but I've not seen multi-colored
string (I'm not very worldy that way sticking to robotics and technic).
Larry produced a string segment that looks a little like one of those tiny
stands they get elephants to step on. Its sides are composed of triangles. In
an attempt to approximate the color difference due to diffuse and specular
(shading and shinyness) he used two different colored triangles. This is the
two-color issue being discussed.
I think the right solution is to actually provide a tri-twist part, that can be
made any color and used as a string segment. The 3D geometry of the tri twist
part should handle the "two-color" issue Larry mentioned, and allow string to be
any single color.
Your proposal does sound interesting. Did you imagine three colors per strand
in the tri-strand string?
>
> Tim
Kevin
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Message has 1 Reply:
 | | Re: LSynth and string
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| (...) I'm not too familiar with Lego string either but my proposal would be most useful for situations where you have any number of colours, twisting slowly around the string length (like a candy cane for example). I certainly don't recall seeing (...) (19 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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| (...) I can think of a way to deal with different coloured strands. You rotate each element (with the multiple-colours defined on it) around the gradient of the position of each element, increasing the angle as you go along. I can send details on (...) (19 years ago, 26-Apr-05, to lugnet.cad)
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