Subject:
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A different simple question
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Newsgroups:
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lugnet.cad.ray
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Date:
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Thu, 29 Jan 2004 01:27:14 GMT
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Viewed:
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1424 times
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Hello all you super-smart PoV-Rayers out there,
I’ve been fooling around with some simple animation the past few days and for
some reason I can’t seemt o be able to do what I want. I have a bowl-ish shape
(thanks Michael L. for the generator in MLCAD!) that I want to rotate the camera
around, keeping the camera aimed at the same spot. I’ve tried Friedrich’s
tutorial and I’m doing just what he says (omitting the +0.10). Instead of
rotating around the center of the model, it makes a wierd swing out and away
before coming back to the original spot.
I was wondering if anybody here can look at my code (link below) and tell me
what I’m doing wrong.
http://www.roboticsresources.com/bowl.pov
470KB
Thanks a million,
~Mike
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Message has 4 Replies:
 | | Re: A different simple question
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| Hi I think that this is caused by the fact that the original MLCAD model is not centered in the virtual space. If you move it so that it's center is at 0,0,0, the camera will rotate around it. /Not 100% sure but I did replicate the above using a (...) (21 years ago, 29-Jan-04, to lugnet.cad.ray, FTX)
| | | Re: A different simple question
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| (...) Hello Mike Glad to see someone starting into animation. Here are some changes I made to your file. first translate the bowl: translate<-400,0,-400> this will put it at 0,0,0. Second I simplified your Camera definition. Much easier to use. (...) (21 years ago, 29-Jan-04, to lugnet.cad.ray)
| | | Re: A different simple question
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| (...) You are rotating the camera around the y-axis! You would like to rotate it around the vertical axis through the bowl's center. Translate the model center to origo, rotate, and translate back again: translate -<400,-54,400> rotate (...) (21 years ago, 29-Jan-04, to lugnet.cad.ray)
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