Subject:
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Re: Change to existing policy on embedding POV-Ray code in Official Files
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Newsgroups:
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lugnet.cad.dev
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Date:
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Mon, 2 Jul 2007 14:43:44 GMT
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Viewed:
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5353 times
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Orion Pobursky wrote:
> The LDraw.org Standards Committee (LSC) has recently discussed the issue of
> embedded POV-Ray code in Official Parts Library files. After careful
> consideration and with inputs from leading non-LSC members, most notably Lars
> Hassing and Chris Dee, we have agreed that the inclusion of this code is
> undesirable.
>
> Our main reasoning behind this conclusion is outlined below is that the
> inclusion of POV-Ray code locks the Official Library into a standard beyond the
> control of the LSC. The intermixing of language formats creates backwards
> compatiblity issues that are too large to ignore.
>
> Note that this restriction would only apply to Official Parts Library Files and
> not to the LDraw File Format as a whole. We are discussing the official
> recognition of seperate libraries that define LDraw parts in various 3D formats.
> These libraries would not be distributed with the LDraw base package but would
> be offered as a downloadable add-on.
>
> Before we make a final decision regarding this matter, we would like to open
> this discussion up to the LDraw community as a whole. Please be constructive
> with your comments.
>
> - The LSC
Hello All,
First I am no part designer but reading through this discussion I got an
idea that might be interesting to share.
First I think Orion is right with his stand to not allow povcode because
of the 'why only pov-ray' argument.
So I was thinking why not introduce some kind of inheritance system to
the format. This way parts of the .dat file can be marked as 'over ridable'.
Next you can go create an inherited version of the part with povray or
any other renderer's extensions in a different directroy (but with the
same file structure).
for example
LDraw/Parts/foo.dat
0 PROTECTED SOMENAME
2 ..
2 ..
0 PROTECTED END
Override eg.
PovLDraw/Parts/foo.dat
0 OVERRIDE SOMENAME
(insert render code her)
0 OVERRIDE END
Just my 2 cents.
Greetings,
Roland Melkert
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