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Subject: 
Re: DAT to GIF/JPG/EPS
Newsgroups: 
lugnet.cad
Date: 
Tue, 23 Jan 2001 07:14:10 GMT
Viewed: 
870 times
  
In lugnet.cad, Don Heyse writes:

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. • then...
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 wordy.  I suppose if you could remove all the hidden triangles (or
at least the hidden studs like l3lab) then you might get a reasonable sized
EPS file.

What it really wants is not individual triangles, but outline strokes.
Always more ideas for projects than time to do them.



Message has 1 Reply:
  Re: DAT to GIF/JPG/EPS
 
Thanks for all the feedback. Erik Olson wrote in message ... (...) (URL)into ldglite. It uses the opengl feedback buffer to grab the primitives (...) not (...) of (...) though, (...) through (...) postscript (...) (or (...) sized (...) (23 years ago, 24-Jan-01, to lugnet.cad)

Message is in Reply To:
  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)

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