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Subject: 
Re: DAT to GIF/JPG/EPS
Newsgroups: 
lugnet.cad
Date: 
Sun, 21 Jan 2001 00:40:51 GMT
Viewed: 
726 times
  
In lugnet.cad, Don Heyse writes:
In lugnet.cad, Thomas Keenan writes:
I toyed with EPS output in the latest version of the ldglite sources, but
the output files were ENORMOUS.  Of course I was just dumping shaded • triangles
so I suppose a more sophisticated translator would produce more efficient
EPS files.

How exactly did you do this, if you don't mind explaining?

I pasted some code from here http://reality.sgi.com/opengl/tips/Feedback.html
into ldglite.  It uses the opengl feedback buffer to grab the primitives
and dump EPS instead of rendering them onscreen.  It's a neat trick, but not
the best way to do it.  A better way would be to convert parts instead of
just triangles, quads, and lines to EPS.

Don

Where does hidden triangle removal happen in this process? Or do you count
on getting them in proper back-to-front order?

I'm experimenting with a postscript renderer plug-in since about a week ago.

-Erik



Message has 1 Reply:
  Re: DAT to GIF/JPG/EPS
 
(...) The code at sgi has an option to sort them by depth. It's not perfect though, and it uses a lot of memory since you have to push ALL the triangles through the feedback buffer before you sort. That's a lot of triangles and postscript is quite (...) (23 years ago, 22-Jan-01, to lugnet.cad)

Message is in Reply To:
  Re: DAT to GIF/JPG/EPS
 
(...) I pasted some code from here (URL) ldglite. It uses the opengl feedback buffer to grab the primitives and dump EPS instead of rendering them onscreen. It's a neat trick, but not the best way to do it. A better way would be to convert parts (...) (23 years ago, 20-Jan-01, to lugnet.cad)

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