Subject:
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Re: LDlite "Black" not really Black...
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Newsgroups:
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lugnet.cad.dev
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Date:
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Sat, 27 Mar 1999 22:56:08 GMT
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Viewed:
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938 times
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It already does support RGB, sort-of.
Use "ldlite -b17440512 foo.dat" to get a pure-black background.
Here is an section of the file "wood4.dat", available on the LDLite
home page http://www.gyugyi.com/l3g0/ldlite/ and I'll post
it to lugnet.cad.dat also.
The file wood4.dat is a tutorial of LDLite features, so I encourage
you to read it. Here is a section where I talk about redefining
the color blue to have pure-black edges. The "immediate" form
of colors can be used from the command line background color option
if you use the decimal form (not the 0x... hex numbers). The
MS Windows calculator in scientific mode can covert hex to decimal.
0 [...] The standard color "Black" in
0 palette index 0 is sort of a really dark grey. I want the
0 edges on blue to be pure black, so I'll use the new "immediate"
0 form of a color, which is seven hexadecimal digits.
0 The first digit is a 4 for opaque colors, or 6 for transparents.
0 The next three digits are the red, green, and blue values
0 ranging from 0 to f. The last three digits are for a
0 dithered color. If you want a solid color, just use the
0 same values you used for the first three digits. Since I
0 want a pure black, the color will be 0x4000000. (I could also
0 use the decimal number 117440512 if I wanted.)
0 Note that the immediate rgb colors have only 1/16th the possible
0 values a palette entry has. If you need precise colors,
0 redefine an unused palette entry.
0 COLOR 1 Blue 0x4000000 0x00 0x33 0xb2 0xff 0x00 0x33 0xb2 0xff
0
0 One trick I use in testing models is to make some parts invisible.
0 Here I set a pair of colors to be inverses of each other, to
0 make sure no edges get drawn.
0 COLOR 255 Invisible 254 0 0 0 0 0 0 0 0
0 COLOR 254 Invisible-Edge 255 0 0 0 0 0 0 0 0
Steve Bliss wrote:
>
> On Wed, 24 Mar 1999 22:07:57 GMT, Karim <knassar@mindspring.com> wrote:
>
> > I noticed that In LDlite, "black" is not really black... it is not quite
> > R:0;G:0;B:0. I know that that works well for lego parts, but it would be nice
> > if it would render true black when you select black for the background color.
>
> Even if I was doing a "true black" background, I'd probably still want my
> black lego parts in a slightly off-black color. So maybe the -B option
> could accept an RGB value?
>
> Steve
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Message has 1 Reply:
 | | Re: LDlite "Black" not really Black...
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| Wow, cool. :) Now I just have to create a script to set the edge-color for everything to pure black. And I'm going to edit my stud.dat and stud2.dat files, to put pure-black sides on all the studs. Too bad that messes up a few parts which use studs (...) (26 years ago, 29-Mar-99, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: LDlite "Black" not really Black...
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| (...) Even if I was doing a "true black" background, I'd probably still want my black lego parts in a slightly off-black color. So maybe the -B option could accept an RGB value? Steve (26 years ago, 25-Mar-99, to lugnet.cad.dev)
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