Eero Ahonen wrote:
> Warp wrote:
>>
>>   Please read the caveats of that "trick" here:
>>
>> http://tag.povray.org/povQandT/languageQandT.html#aspectratio
>>
>
> Good points (except 1, which is poo, because rendering the scene with
> unoriginal/unintended aspect ratio always disturbs it, except with
> case 3 ;)), thou they haven't disturbed me yet (4. seems to be one
> that will). I usually render my scenes several times with multiple
> aspect ratios to get more view, which makes the automation handy.

As a side note, if you want an automatic adjustment for image ratio that 
doesn't prioritize either horizontal or vertical angle, you can use:

up y*sqrt(image_height/image_width)
right x*sqrt(image_width/image_height)

This will for example have the effect that if you switch the width and 
height of the image, it will be like if you rotated a real camera 90 
degrees: the area will be the same.

Remember though that the effect will be overruled if the angle keyword is 
used.

Rune
-- 
http://runevision.com

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