POV-Ray : Newsgroups : povray.animations : Progress of shadows due to sunlight : Re: Progress of shadows due to sunlight Server Time: 20 Jul 2008 11:16:22 GMT
  Re: Progress of shadows due to sunlight  
From: JLH
Date: 13 Jun 2007 10:05:01
Warp <warp [at] tagpovrayorg> wrote:
> I don't really understand what *exactly* is the problem you are trying
> to describe, but here's how you render an animation in povray:
>
>   1) Use the 'clock' variable in your scene. This variable goes from 0.0
> to 1.0 (independently of how many frames you render). You can use this
> variable for whatever you want to move or setup during the duration of
> the animation. For example, if you want some parameter to go from 0 to 24
> (ie. hours), give "clock*24" as that parameter (since 'clock' goes from
> 0.0 to 1.0, then "clock*24" will go from 0.0 to 24.0).
>
>   2) Use the command-line parameter +kff<n> where <n> is the number of
> frames you want your animation to have. For example, if you want 20 frames,
> use +kff20
>   If you are using the windows version of povray, you can write command-line
> parameters in the textfield at the top of the window (at the right of the
> resolution selection drop-down menu).
>
>   POV-Ray will render a series of images. You'll have to use a third-party
> software to compose an animation from those images (eg. VirtualDub).
>
> --
>                                                           - Warp

Thank you everyone for your help. I actually found the fault myself just
before reading the last post. It was the switching on of the animation with
the +kffn that I had missed. It works fine and I thank you all; I learned a
lot. Jim


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