POV-Ray : Newsgroups : povray.animations : Quick way to posit "old frame" as "new frame" in animation : Re: Quick way to posit "old frame" as "new frame" in animation Server Time
17 May 2024 06:07:44 EDT (-0400)
  Re: Quick way to posit "old frame" as "new frame" in animation  
From: Greg M  Johnson
Date: 19 Jan 2007 09:02:50
Message: <45b0cf8a@news.povray.org>
What I mean is:
1) Render SDL file DRAFT01.pov  for 1 to n frames, n is huge.
2) Make a bunch of SDL changes and save a new file as DRAFT02.pov.
3) Now, I want frames 1 to m , m<<n,  of the DRAFT0200x.PNG render sequence
to be identical to DRAFT0100x.PNG, for all frames x.  Truly for all Z, I
wantDRAFT0Z00x.PNG to be DRAFT0100x.PNG.

I suppose there are ways to do this with bash scripting, but I wanted it
automatic. 
I came up with a solution in the povray SDL, but it's inelegant, as it's one
of those things where I had to keep tweaking the box with translates and
scaling until it looked right.  It provided the right image after MUCH
tinkering.  Maybe there were a mathematically precise way of just writing
down the correct image and box and camera placement down the very first
time.

OBTW, I also wanted to keep a 45 degree camera angle during the whole set.




"Stephen" <mcavoys_AT_aolDOT.com> wrote:
> 
> I’m not sure what you mean, Greg. If you want to create some frames of a
> second animation with the same frame numbers as the first. You could use
> Subset_Start_Frame and Subset_End_Frame. But that is probably too simple
> and it’s not what you want.
> 
> Stephen


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