Subject:
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Re: Is it possible to use LDView as POV-Ray previewer?
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Newsgroups:
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lugnet.cad.ray
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Date:
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Sat, 3 Dec 2005 03:13:53 GMT
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Viewed:
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7691 times
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In lugnet.cad.ray, Travis Cobbs wrote:
> I tried to implement this functionality, but ran into a brick wall. The problem
> is that L3P doesn't allow for arbitrary camera positioning, so there's no way to
> convert LDView's arbitrary camera position into an L3P command line.
> Specifically, the top-of-head in L3P always points up. I'm not sure if Lars
> plans to change this in the next L3P or not.
I have already implemented support for the sky vector and for camera roll, see
http://news.lugnet.com/cad/ray/?n=1329
But perhaps it would be more convenient to have a -matrix option
to directly specify the camera matrix ?
I know POV supports the matrix keyword inside the camera.
I'm pretty hung up in testing other L3P functionality,
maybe you would care to try yourself replacing the camera section
of a L3P generated file by a camera with your matrix.
I don't know if your matrix will work "as is",
perhaps somebody has already made an OpenGL to POV camera conversion...
/Lars
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Message has 2 Replies:
 | | Re: Is it possible to use LDView as POV-Ray previewer?
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| (...) It would definitely be more convenient for me if you had a -matrix option. I'm not sure off the top of my head how to go from my camera matrix to your latitude/longitude/roll (although I'm sure I could probably figure it out). (...) I'll take (...) (19 years ago, 3-Dec-05, to lugnet.cad.ray)
| | | Re: Is it possible to use LDView as POV-Ray previewer?
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| (...) I did some investigation (read: experimentation), and came to the conclusion that I'm not going to be able to produce a camera matrix that POV will accept. The problem is that I use floats in my matrix, and they're not accurate enough to (...) (19 years ago, 6-Dec-05, to lugnet.cad.ray)
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Message is in Reply To:
| | Re: Is it possible to use LDView as POV-Ray previewer?
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| (...) I tried to implement this functionality, but ran into a brick wall. The problem is that L3P doesn't allow for arbitrary camera positioning, so there's no way to convert LDView's arbitrary camera position into an L3P command line. Specifically, (...) (19 years ago, 2-Dec-05, to lugnet.cad.ray)
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