Subject:
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Re: LDGlite and LPub
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Newsgroups:
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lugnet.cad.dev
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Date:
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Tue, 26 Oct 2004 16:40:31 GMT
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Viewed:
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1962 times
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In lugnet.cad.dev, Don Heyse wrote:
> Figures. That just confused me again. What does it mean by "The 4/3
> aspect ratio is always maintained even if the (horizontal) viewing
> angle is changed"? Does l3p not allow tall skinny windows? Should
> (width/height) always be (4/3) even if the window is tall and skinny?
> Or does it just mean the pov file will always contain the line:
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> right -4/3*x
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> (whatever that does.)
I assume that L3P allows the output to be any aspect ratio. The page is a
little confusing that way. However, it's trying to tell you how the camera
angle argument works, going on the assumption you haven't changed the aspect
ratio. Just substitute "width" for 4 and "height" for 3 in various spots.
Oh, and I'm not really sure of the significance of the viewing angle he chose,
but it appears to be 2 * atan((height/2) / 3).
--Travis
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Message has 2 Replies:
 | | Re: LDGlite and LPub
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| (...) The 4/3 is the aspect ratio of the POV generated rendering (matches 800x600, 1024x768, 1600x1200 etc.). If you for some reason want POV to do a high, narrow (or low, long), rendering this factor has to be changed. It's often easier to do a (...) (20 years ago, 26-Oct-04, to lugnet.cad.dev)
| | | Re: LDGlite and LPub
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| (...) Not yet. The current release always picks -4/3*x for the aspect ratio. I know the negative sign is required to convert the y axis from ldraw coords to POV. I'm not sure how that gets worked into the upcoming version of l3p, which does have a (...) (20 years ago, 26-Oct-04, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: LDGlite and LPub
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| (...) aspect ratio is always maintained even if the (horizontal) viewing angle is changed"? Does l3p not allow tall skinny windows? Should (width/height) always be (4/3) even if the window is tall and skinny? Or does it just mean the pov file will (...) (20 years ago, 26-Oct-04, to lugnet.cad.dev)
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