POV-Ray : Newsgroups : povray.general : An observation of concern : Re: An observation of concern Server Time
8 Aug 2024 20:20:58 EDT (-0400)
  Re: An observation of concern  
From: Greg M  Johnson
Date: 13 Oct 2000 15:23:22
Message: <39e7612a@news.povray.org>
My possible submission to this round of the IRTC has  208 walking blobmen
(not much else, so I'm almost embarassed to submit it). Anyway, around the
130th frame, it crashed for lack of memory.  So I just started it right up
again at that frame and it was cool.

I have also frequently observed that the render time per frame always creeps
up during an animation.

John VanSickle wrote:

> While woorking on my latest Rusty animation, I've been noticing that the
> peak memory usage figure seems to go up with each frame.  For instance,
> in one shot, the first frame uses 12 megs or so of RAM.  The next frame
> shows about 13.5 megs of RAM, and this peak figure continues to grow as
> long as the sequence is rendering, even though the number of objects
> remains the same.  If I stop rendering, the amount goes back to 12 megs,
> and the memory appears to get released.  On one sequence the peak
> memory figure was over 80 megs when the rendering was down.  I am pretty
> sure that only the original 12 megs is needed for the actual render, and
> with a 96 meg machine I'm not experiencing a virtual memory thrash.
>
> It seems to me that POV-Ray (I'm using the Win95 version) for some
> reason doesn't release everything between frames, but does release
> everything when all frames are done.
>
> Can anyone else confirm this observation, and if so, has it caused any
> genuine problems?
>
> Regards,
> John


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