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Glen Berry wrote:
>
> On Mon, 07 Feb 2000 21:06:03 -0900, "mr.art" <mr.### [at] gci net> wrote:
>
> >Set width to 800, height to 600. Then set right to anything other
> >than 4/3*x and watch what happens. The image is stretched oddly.
> >So set the image to 800x450, leave right alone. The image is
> >stretched oddly. I would like to see povray try to keep the image
> >of a sphere round unless you tell it to do otherwise.
> >
>
> In that case, my suggestion of specifying the aspect ratio in the
> scene file, and *either* Width or Height, but *not both* on the
> command line (or povray.ini) would work. The image aspect ratio could
> be set with the camera{right} statement. Then we only need to specify
> *one* of the image dimensions on the command line. POV would calculate
> the other dimension.
>
> I'm not forgetting that some systems might not employ square pixels.
> I'm also aware of the idea that some people might want to create
> images that are "compressed" in one dimension. For those situations, I
> propose that an option be created for the povray.ini file that
> specifies the *pixel* aspect ratio. This could also be used on the
> command line.
>
> There is a definite practical advantage of having seperate variables
> assigned for the aspect ratio of the output image, and a second
> variable associated with the aspect ratio of an individual pixel.
>
> Yes, all of this can be achieved currently, but it is awkward to work
> with multiple, image aspect ratios with the current system.
>
> later,
> Glen Berry
A pixel aspect ratio would be mandatory unless square pixels are
default.
If I said width=320, ar=4/3, do I want 320x240 or 320x200 VGA mode?
PoD.
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