Le 2023-07-24 à 00:47, Greg Kennedy a écrit :
> The default POV-Ray camera setting for "right" is a 4:3 ratio, designed to match
> the default 4:3 output (for 4:3 screens) leading to a 1:1 pixel aspect ratio.
> 
> A common stumbling block for new users is attempting to render a 16:9 image,
> which leads to non-square pixels and the output appearing horizontally
> stretched.  This means a search in the manual until you discover the magic words
> "right x*ImageWidth/ImageHeight" to produce the desired aspect ratio.
> 
> The rationale for 4:3 default in the manual FAQ section is pretty thin these
> days, as people are not rendering Windows XP startup screens any more, and it
> seems FAR more likely that users will want a 1:1 PAR by default (which they can
> change if needed for special cases).
> 
> I suggest for 4.0, that the default for camera Right be automatically set to the
> same ratio as the requested image output ratio, which means 16:9 resolutions
> will work "out of the box", and that users wanting an anamorphic ratio should
> instead tweak Right themselves (overriding the default).
> 
As of version 3.8, the default right vector is now :
x*image_width/image_height

That mean that there is no more stretching/squishing.
So, your request is already fulfilled.

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