> If someone comes along and changes the aspect ratio, then the image no 
> longer matches what the "scene designer" explicitly created.  You either 
> have to show sections that weren't intended to be shown, or cut off 
> sections that WERE intended to be shown.  In either case, your results are 
> very likely going to be worse than the original, not to mention a piss in 
> the face of said "scene designer."

Are you also campaigning in photoshop newsgroups to get the crop feature 
removed? :-)

Seriously, anyone can do whatever they want to scene files and images once 
the author decides to "go public" with them, you're not going to stop that 
by trying to prevent certain features being added to POV.

It was merely a suggestion because I know a lot of people go through the 
needlessly painful process of trying to get a desktop-sized render from a 
scene file.

And what about the common situation when the scene file author and the 
renderer are the same person?  I want to be able to select 1920x1200, 
1600x1200, 1680x1050, 240x320, whatever and my image to render full-screen 
with square pixels as the *default* behaviour without needing some special 
code to set this.  By not writing any special code I think I am saying "I 
don't care about aspect ratio in my scene", but POV interprets this as "I 
will fix your aspect ratio for you and give you rectangular pixels" which is 
totally backwards.

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