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 CAD / Development / 6486
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Subject: 
Re: LDGLite bug reports
Newsgroups: 
lugnet.cad.dev
Date: 
Mon, 15 Oct 2001 12:58:33 GMT
Viewed: 
430 times
  
Don:

Another option for larger or oddly shaped images is to use the
tiled rendering option with a small window size.

The tiling works fine, but it is extremely slow compared to
rendering the whole image in one piece.

There are some (probably incomprehensible) notes on how to use
the -u tiled rendering option at the end of the readme.txt
file.

Those notes are quite easy to understand once you find them.

-----

The near z clipping plane IS limited to non-negative numbers.
It is the distance along the vector from the eye/camera to the
model origin. A negative number would put it behind the eye,
which is illegal in opengl.

Considering that we are considering parallel projections, the
concept of an "eye" position is rather strange.

You should be able to achieve what you want to do with the -o
option by using the -cc and -co options to move the location
of the camera (eye).

I will do that then. Hopefully it doesn't imply perspective
projection.

<played around a bit>

Just adding "-Z10000 -cc0,0,5000" to the command line parameters
solved my immediate problems with the z clipping planes.

-----

As for compiling on the 64 bit alpha platform, all I can say
is "where do you get your hands on that kind of hardware"?

It just has a habit of drifting into my office.

I don't suppose you could run the debugger on the core dump
and send me some screen shots of the stack trace and the local
variables at the point where it dies. :)

Wouldn't it be easier to give you an account on the machine, so
you can see for yourself?

Play well,

Jacob
--
http://jacob.sparre.dk/LEGO/By/Huse/Bunden_og_Kanden/



Message has 1 Reply:
  Re: LDGLite bug reports
 
(...) Well, one could think of the orthographic projection as a perspective projection seen from an infinite distance through a telephoto lense (at least that's the way I think of it). I'm not sure that helps me come up with unified coordinate (...) (23 years ago, 15-Oct-01, to lugnet.cad.dev)

Message is in Reply To:
  Re: LDGLite bug reports
 
(...) Wow! Lots of bugs reports all at once. Where do I start? I don't know what's up with xvfb the aspect ratio problem. It seems odd since you can reshape an ldglite window and the aspect ratio is handled correctly. I guess I'll have to get xvfb (...) (23 years ago, 15-Oct-01, to lugnet.cad.dev)

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