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Subject: 
Re: First SNOT spheres, now SNOT bunnies?
Newsgroups: 
lugnet.build.sculpture, lugnet.cad
Date: 
Fri, 15 Dec 2006 19:14:18 GMT
Viewed: 
11467 times
  
In lugnet.build.sculpture, Philippe Hurbain wrote:
In lugnet.announce.moc, Bram Lambrecht wrote:
http://lego.bldesign.org/LSculpt/
Enjoy!
--Bram

I sure did!!! Outstanding...

Three things I found:
- LSculpt seem to prefer "Unix" style PLY (with only CR at the end
of text file instead of CR/LF Windows style). I had to convert
Stanford bunny (bun_zipper.ply) to be able to use it.

I used someone else's library to read in the PLY files, so I'm not sure what it
prefers.  STL is a simpler format, so I wrote that parser myself...and haven't
had any problems with it.

- After conversion with 3D Object Converter (from ply to ply),
Lsculpt barfs and generates nothing. It says "output size is
-1.#J x -1.#J x -1.#J studs".

Try saving as PLY binary from 3D Object Converter.  As a plus, it'll make your
file smaller!

- I tried the horse
(http://www-static.cc.gatech.edu/projects/large_models/horse.html) and get a
studs IN sculpture. Wrong mesh winding? Any way to correct that?

Hmm... I suppose a commandline switch for flipped normals is in order.  The
Princeton horse worked for me.  It's the same model as the GT horse, but I'm not
sure if it's the exact same model.

Once again, congratulations!

Thanks!

PS: idea for improvement: include half stud jumper offset ;o)

That doesn't really fit with my algorithm, but it would be cool.
--Bram



Message has 1 Reply:
  Re: First SNOT spheres, now SNOT bunnies?
 
(...) Another handy option might be one to flip bricks pointing down so that they point up. So the sculpture would be completely studs out execept for the bottom, which would always be studs up instead of studs down like it is now. Not sure how this (...) (18 years ago, 15-Dec-06, to lugnet.build.sculpture, lugnet.cad)

Message is in Reply To:
  Re: First SNOT spheres, now SNOT bunnies?
 
(...) I sure did!!! Outstanding... Three things I found: - LSculpt seem to prefer "Unix" style PLY (with only CR at the end of text file instead of CR/LF Windows style). I had to convert Stanford bunny (bun_zipper.ply) to be able to use it. - After (...) (18 years ago, 15-Dec-06, to lugnet.build.sculpture, lugnet.cad)

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