Subject:
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Re: Color page updated
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Newsgroups:
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lugnet.cad.dev.org.ldraw
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Date:
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Wed, 2 Dec 2009 20:39:47 GMT
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Viewed:
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16945 times
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In lugnet.cad.dev.org.ldraw, Willy Tschager wrote:
> In lugnet.cad.dev.org.ldraw, Sergio Reano wrote:
> > Anyway, there are still many color codes included in official parts
> > (39,257,258,260...) that seems are not supported.
> >
> > I have already rosen the problem in a previous discussion and the answer was
> > that they where MLCad color codes and not "official" ldraw colors, even if
> > include in "official" ldraw parts (!?)
> >
> > So, what about it? How can I translate these color code to or how should I have
> > to manage them?
>
> I started fixing those parts and they will be uploaded to the PT for
> certification since some also include minor primitive substitution as well as
> BFCing. However I cannot forseen when those fixes will be ultimately be shipped
> in an official parts update (as you know the PT is the best example for
> Einstein's quote that "Time is Relative" :-P) .
>
> This leaves you with two posibilities:
>
> * Set all colors which are not listed in the LDConfig.ldr to light gray
>
> or
>
> * handle it like LDView. Which apparently uses an internal color table for those
> not in the color file. Travis?
>
> w.
I apparently have missed the discussion when it comes to certain colors are
suddenly "not supported," but I'd like to register my opinion on it.
It is a huge error to be calling colors in the ranges of 32-47 and 256-511 as
"MLCad color codes" or to somehow suggest that they shouldn't be considered
valid just because they don't show up in the LDConfig.ldr file. As I understand
it, the original LDraw executable defined the following colors:
0 - 15 : prefined set of common part colors
16, 24 : main color, edge color
32 - 47 : the 0 - 15 set of colors, but rendered as transparent (i.e. just
adding 32 to first set)
256 - 511 : dithered colors; these are the main set of colors combined with
each other to form a broader color palette. This is described at the bottom of
this page: http://www.ldraw.org/OLD/reference/specs/colors.shtml
This has nothing to do with MLCad, except that MLCad supported the original
LDraw's usage of these colors.
Over time, some of the dithered colors were redefined by convention, so that
black+black (256) became black rubber, white+white (511) became white rubber,
yellow+yellow (494) became electrical contact metal. Eventually the LDConfig
file was created and these were formalized.
In my opinion, just because some of these colors didn't make it into the config
file, that doesn't mean they're not valid, because
A) we have always tried to maintain backwards compatibility, and
B) we have to allow not only for the color of molded plastic and rubber
pieces, but also all the colors of printed parts. There are far more shades of
paint colors used on printed parts then there will ever be of ABS plastic, and
as long as we do patterns as quads and triangles, we have to have a big enough
color palette to accomodate that.
So, how about we just add the missing transparent and dithered colors to the
config file?
Andy
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Message has 3 Replies:
 | | Re: Color page updated
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| (...) Although I have decided to refrain from participation in this thread (you already know my position and you totally neglect it), I make one exception and say "Amen!" to all of Andy's points above. /Tore (15 years ago, 2-Dec-09, to lugnet.cad.dev.org.ldraw)
| | | Re: Color page updated
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| (...) This isn't the first time that LDconfig.ldr has been updated - and it is just that, the file has been updated with MORE colors than before. I think we are loosing sight of the purpose of LDconfig.ldr... The LDconfig file is meant to be a quick (...) (15 years ago, 3-Dec-09, to lugnet.cad.dev.org.ldraw)
| | | Re: Color page updated
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| (...) Sorry, but I really cannot understand the need to encode dithered colors. Personally I think that only colors used for parts should be coded, while, when you create a patterned part you can choose to use a "good enough" already coded color or (...) (15 years ago, 4-Dec-09, to lugnet.cad.dev.org.ldraw)
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Message is in Reply To:
| | Re: Color page updated
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| (...) I started fixing those parts and they will be uploaded to the PT for certification since some also include minor primitive substitution as well as BFCing. However I cannot forseen when those fixes will be ultimately be shipped in an official (...) (15 years ago, 2-Dec-09, to lugnet.cad.dev.org.ldraw)
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