Subject:
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Re: "Dither" colors in patterned/sticker parts
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Newsgroups:
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lugnet.cad.dat.parts
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Date:
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Wed, 10 Feb 2010 22:53:54 GMT
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Viewed:
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16283 times
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As has been mentioned already in this thread, there is an ongoing effort to add
support for texture maps to the LDraw format via meta commands. What hasn’t
been mentioned is that the current LSC is basically in favor of ratifying
support for textures. We’re holding off on diving into that until we settle the
other color issues, but the fact that we expect it to happen is being kept in
our minds as we make decisions about colors.
I intentionally didn’t mention textures in my original post because we (the LSC)
wanted to see what the response would be without having mentioned textures. Of
course, a number (all?) of the responses were posted by people who were aware of
the texture work, which hasn’t exactly been secret.
So, given that textures will hopefully be ratified for use in official parts
some time within the next few months, does that change people’s opinion about
RGB vs. dither colors in parts? Please note that the texture commands will
include a provision for fallback geometry. So, even if someone running, say,
LDView were to see the texture maps, someone running, say, MLCad might not.
(Note, I’m not trying to pick on MLCad here, but I acknowledge that adding
texture support to a software renderer like MLCad has is a lot more effort than
adding texture support to a hardware renderer like LDView has.) And if the
textures aren’t supported, the fallback geometry has to be used instead.
Some existing high-quality patterned parts would benefit from textures for the
smooth gradients they enable. (One sample that’s already been done is the 2x2
tile with Star Wars Rebel pattern.) Some new patterned parts would probably
have minimalistic fallback geometry (just enough to identify what the pattern
is, but not really look good; the shark crater baseplate Don linked to would be
a good example of a pattern that likely never be modeled accurately as
geometry). Either way, the fallback geometry would still probably use RGB
colors, “dither” colors, or both, but it does change the equation.
Also, another option was brought up: explicitly allow both RGB and “dither”
colors in official parts.
--Travis
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Message is in Reply To:
 | | "Dither" colors in patterned/sticker parts
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| Please read and respond to this message if you are a parts author, particularly if you have authored any patterned or sticker parts. The LSC is trying to come up with rules for colors for both LDConfig.ldr and official parts. We are having an (...) (15 years ago, 6-Feb-10, to lugnet.cad.dat.parts, FTX)
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