Am 25.05.2015 um 08:49 schrieb Le_Forgeron:

> Le 24/05/2015 22:08, Lars Rohwedder a écrit :
[...]
>> That was _not_ my question. I asked when 16:9 will become the
>> _default_ in Povray so such scaling of the right vector becomes
>> unnecessary. oO
>>
>> Lars R.
>>
> Unnecessary for you... my screen are 1920x1200, I would need 16:10.
>
> Changing the default right vector (even to something like
> image_width:image_height ratio, assuming square pixel everywhere)
> would only have one sure effect: break every historical scenes.
> Without providing 100% satisfaction to all users. Better not move.

I totally agree - except when it comes to defaulting to square pixels, 
which /does/ make sense nowadays; after all, that's what any reasonable 
image handling software defaults to as well if the input image material 
provides no embedded resolution information.


> And guess what: 4K screens are coming... and there is at least 5
> different resolution under the name 4K, none with exactly the same ratio
> ..
>
> So far:
>
>   * 4096 x 2160 ( 256:135) [DCI native]
>   * 3840 x 2160 ( 16:9 ) [UHD-1]
>   * 5120 x 2160 ( 21:9 ) [UWT]
>   * 5120 x 3200 ( 16:10 ) [WHXGA]
>   * 4096 x 1716 ( 2.39: 1 ) [DCI cinemascope cropped]
>   * 3996 x 2160 ( 1.85: 1 ) [DCI flat cropped]

(Um... that looks more like 8K to me... or am I missing something?)

It might be worth noting that of all those aspect ratios, 16:10 is 
closest to the famous Golden Ratio (1.618...:1), which has been 
considered an aesthetically superior ratio for literally thousands of years.

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