POV-Ray : Newsgroups : povray.windows : Force save incomplete output? : Re: Force save incomplete output? Server Time
28 Sep 2023 16:29:54 EDT (-0400)
  Re: Force save incomplete output?  
From: Mike Horvath
Date: 23 Feb 2018 08:24:50
Message: <5a901622$1@news.povray.org>
On 2/23/2018 6:58 AM, Kenneth wrote:
> clipka <ano### [at] anonymousorg> wrote:
>> Nope.
> IIRC, some older versions did... at least with Windows-specific .BMP renders
> (which is how I used to run POV-Ray.) Maybe 3.6.1 or 3.6.2? I remember stopping
> some time-consuming renders and taking a look at them. (But not partial PNG
> renders-- they didn't open. I'm guessing that some kind of 'header' file
> information was missing..) This was before the 'state' file implementation in
> 3.7.0(?)

BMP is uncompressed, so I'm guessing each pixel is appended 
sequentially, and a partial image will display by default.

PNG images are maybe compressed *after* all the pixels have been written.

Forcing output could still be done however. But continuing a stopped 
render may no longer be possible afterward.


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