Subject:
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Re: Aspect ratio (via L3P)
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Newsgroups:
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lugnet.cad.ray
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Date:
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Sun, 30 Jun 2002 22:51:52 GMT
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Viewed:
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3780 times
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Andrew Westrate wrote...
> In lugnet.cad.ray, Lars C. Hassing writes:
> > How would you want it to work ?
> > Just to specify the location of the camera ?
> > See also http://news.lugnet.com/cad/?n=4891
> > (Since the above post -cla has been added to function as a look_at.dat)
>
> After reading your post, I use the 2nd approach (the view pyramid) to specify
> the location and orientation of the camera. Here's the file I use (the
> cylinder is just a placeholder):
>
> 0 POV-Ray Camera Shortcut
> 0 Name: Camera1.dat
> 0 L3P IFPOV
> 0 // camera-subst
> 0 cylinder { <0,0,20>, <0,0,5>, 4 }
> 0 L3P ELSEPOV
> 0 // directional lines and minifig
> 2 4 0 0 20 0 0 -100
> 2 0 20 0 0 -20 0 0
> 2 0 0 20 0 0 -20 0
> 3 41 0 0 0 72 48 -200 -72 48 -200
> 3 41 0 0 0 72 -48 -200 -72 -48 -200
> 3 41 0 0 0 72 48 -200 72 -48 -200
> 3 41 0 0 0 -72 48 -200 -72 -48 -200
> 2 14 0 0 0 -72 -48 -200
> 2 14 0 0 0 -72 48 -200
> 2 14 0 0 0 72 48 -200
> 2 14 0 0 0 72 -48 -200
> 1 15 0 -8 15 1 0 0 0 1 0 0 0 1 3626B.DAT
> 1 15 0 16 15 1 0 0 0 1 0 0 0 1 973.DAT
> 1 15 0 48 15 1 0 0 0 1 0 0 0 1 970.DAT
> 1 15 0 60 15 1 0 0 0 1 0 0 0 1 972.DAT
> 1 15 0 60 15 1 0 0 0 1 0 0 0 1 971.DAT
> 0 L3P ENDPOV
> 0
Nice looking camera. And good idea with a cameraman.
Your camera has a lens angle of 44 degrees and an aspect ratio of 3/2.
How should L3P extract that information?
Perhaps by putting the pyramid into a subfile,
then L3P can calculate the bounding box of that.
Shouldn't the pyramid be very large, so that you can place the camera
for large models too?
I would leave out the cylinder.
/Lars
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Message has 1 Reply:
Message is in Reply To:
 | | Re: Aspect ratio (via L3P) [DAT]
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| (...) Great! (...) After reading your post, I use the 2nd approach (the view pyramid) to specify the location and orientation of the camera. Here's the file I use (the cylinder is just a placeholder): 0 POV-Ray Camera Shortcut 0 Name: Camera1.dat 0 (...) (24 years ago, 29-Jun-02, to lugnet.cad.ray)
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