POV-Ray : Newsgroups : povray.programming : Port of FS85 - Aspect ratio issues #284 Server Time: 14 Dec 2018 00:18:46 GMT
  Port of FS85 - Aspect ratio issues #284 (Message 1 to 4 of 4)  
From: Benjamin Chambers
Subject: Port of FS85 - Aspect ratio issues #284
Date: 22 Jun 2017 19:15:38
Message: <594c175a$1@news.povray.org>
https://github.com/POV-Ray/povray/issues/284

I have to say, I think this issue just needs to be closed out.

The current behavior allows the scene file to specify the viewport, and 
the INI file to specify the image size. The aspect ratio is implicit in 
the image size. I honestly don't see how any further change is necessary.

Plus, there hasn't been any discussion on this in several years.


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From: clipka
Subject: Re: Port of FS85 - Aspect ratio issues #284
Date: 22 Jun 2017 20:41:38
Message: <594c2b82$1@news.povray.org>
Am 22.06.2017 um 21:15 schrieb Benjamin Chambers:
> https://github.com/POV-Ray/povray/issues/284
> 
> I have to say, I think this issue just needs to be closed out.
> 
> The current behavior allows the scene file to specify the viewport, and
> the INI file to specify the image size. The aspect ratio is implicit in
> the image size. I honestly don't see how any further change is necessary.

Well, you may not, but others do.

The current mechanism is fine as long as the person running the render
is fully aware of the aspect ratio the scene was designed for, or the
final resolution is explicitly specified in an INI file.

The mechanism has its shortcomings however, if the person running the
render is unaware of the intended aspect ratio, and the original author
did not fix the resolution via an INI file.


In an ideal world, I think we would have a means to specify the aspect
ratio in the scene file, and specify only the horizontal or vertical
resolution via INI or command-line parameters, and have the other
dimension computed automatically.


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From: Benjamin Chambers
Subject: Re: Port of FS85 - Aspect ratio issues #284
Date: 22 Jun 2017 21:34:40
Message: <594c37f0$1@news.povray.org>
On 6/22/2017 2:41 PM, clipka wrote:
> Am 22.06.2017 um 21:15 schrieb Benjamin Chambers:
>> the image size. I honestly don't see how any further change is necessary.
> 
> Well, you may not, but others do.

Which is why I like to ask :D

> The current mechanism is fine as long as the person running the render
> is fully aware of the aspect ratio the scene was designed for, or the
> final resolution is explicitly specified in an INI file.

Honestly, I think this is one of those things where expecting the user 
to be aware is perfectly reasonable. There are somethings you want to 
simplify, but there are times when it's OK to say "You need to be at 
least <this> smart to use this product."


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From: Benjamin Chambers
Subject: Re: Port of FS85 - Aspect ratio issues #284
Date: 22 Jun 2017 22:00:48
Message: <594c3e10$1@news.povray.org>
On 6/22/2017 2:41 PM, clipka wrote:
> In an ideal world, I think we would have a means to specify the aspect
> ratio in the scene file, and specify only the horizontal or vertical
> resolution via INI or command-line parameters, and have the other
> dimension computed automatically.

Thinking about it more, I think I'd be in agreement with this method. 
More precisely, let user specify 2 pieces of information out of width, 
height, and aspect ratio for the viewport.

On the rendering end, you could either specify just the width/height 
(and use the default for the others from the scene), or you could 
specify both width/height to override the scene-specified aspect ratio.


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