Short answer would be to look into using the aspect ratio keywords, 'right'
and 'up'.  When you tie those in with your resolutions you will get
non-skewed images.
Far as a long answer goes, I couldn't say.  However, the math is as easy as
dividing the width by the height, i.e. 640/480=1.33333333 (or 4/3), so that
right 4/3*x and up 1*y make it match the resolution chosen.  Any changes to
resolution would need the ratios of right to up changed in the camera as
well.

Bob H.

"Chad Kruger" <ckr### [at] telusplanetnet> wrote in message
news:3B5782D9.424CC774@telusplanet.net...
>
> I was playing around with the output dimensions in QUICKRES.INI and ran
> a few tests which brought to light a few questions:
>
> 1)   Since it looks as if the same amount of information (as far as
> camera angle of the scene) is being put into the output file no matter
> what pixel dimensions you specify (as in, this has no effect on the
> cropping or changing the camera angle in your scene), if you change from
> the defaults to a more vertical or horizontal shape, why is my image
> being skewed?
>
> 2)  Using the answer to question 1) as a rule of thumb, what pixel
> dimension ratios should I use for the most accurate sampling (not at all
> skewed from what it should look like) of the scene I have input to
> POV-Ray?  Would it be the defaults, 512x384, 640x480, 800x600, etc.
> (which are based on standard screen resolution which, of course, is
> messed up anyway [a square on your computer screen does not look like a
> square]) or a square output from POV-Ray, which wasn't all that bad when
> I tried it.  Would this be at all accurate?
>
> ANY input or explanation on the math would be useful.

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