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In lugnet.people.newbie, Travis Cobbs wrote:
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It looks like you’re using LGEO parts in your picture. These have (slightly)
rounded edges on all the bricks that visually create seams. The forklift
part isn’t modeled in LGEO, so L3P falls back to the LDraw geometry for that
part, which doesn’t contain the rounded edges.
Additionally, unless you use the -sw0 option of L3P, it will shrink all the
parts in such a way as to create seams between the parts. (See
here.) This will only work for
separate parts, though. If the entire forklift assembly is seen as one part,
there won’t be any seams between the individual components. I can’t tell
based on the picture you posted if you’re using the -sw0 option for L3P or
not, but I would suspect not. (Using -sw0 sets the seam width to 0; the
default seam width is 0.5.)
--Travis
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Thanks for your help. You’ve deffinitely helped me understand some of what
creates that authentic lego look in the POV-Ray picture. :)
But I tried everything and I just can’t get L3P or POV-Ray to shrink/separate
the unofficial parts in the fork lift (3429 & 3430). (I guess that might be why
they are unofficial huh?)
I did try turning off the LGEO parts and that produced the rendering with no
seams anywhere as expected. I then turned the sw parameter to 5.0 just to make
sure that feature worked. It worked on everything EXCEPT 3429 & 3430. 3430 (the
rails) is not separated from the 2x3 plate (3021) below it, and 3429 (the forks)
is not separated from 3430.
I took a breif look into the ldraw part files for 3430 and 3429 but I really
don’t understand the format/syntax well enough to troubleshoot anything at that
level. I saw that on the forks file (3429) it did seem to use the edge sub part
(or whatever they’re called) which I assume should cause L3P to recognize it as
a place to separate two parts? (I know the edge sub part just changes the color
to an opposite color - but I don’t know what L3P uses to determine where to
separate parts.
Thinking that maybe the part could not be separated because it was so
intertwined with the rails, I tried using 3429 to the “official” forklift rails
(4518) which should be just as “intertwined.” But that rendered with the
separation between the forks and the rail as expected.
So, now I was really confused and tried one more thing to see if it would reveal
anything. I tried entering a sw value of 8. This made it VERY apparent which
parts were being separated by being shaved/shrunken and which parts were being
moved. It appears that all the standard quadrilateral parts are being
shaved/srunken but odd shaped pats are being moved. Maybe the forklift forks
being intertwined with the fork lift rails makes it impossible to for L3P to
determine which way to move the part?
Here’s the sw8 pic.
And here’s the actual file if you want to play with it.
http://www.mywebwallet.com/main/images/Space_forklift.mpd
Thanks for the help.
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Message is in Reply To:
 | | Re: Missing seams
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| (...) It looks like you're using LGEO parts in your picture. These have (slightly) rounded edges on all the bricks that visually create seams. The forklift part isn't modeled in LGEO, so L3P falls back to the LDraw geometry for that part, which (...) (18 years ago, 24-Sep-06, to lugnet.people.newbie, lugnet.cad.ray, FTX)
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