Warp <war### [at] tagpovrayorg> wrote:
>
>   seed(frame_number) is a perfectly good way of using different random
> streams at each frame. The quality of the randomness will neither
> increase nor decrease by doing that. There will be no obvious pattern
> caused by doing this.
>

Unless I misunderstand what you're saying, I believe the exact opposite. I first
discovered the problem when using seed(frame_number) and saw a predictable,
linearly monotonous effect in rand().  I believe that's also exactly what I
showed in my red dot pattern.  The "n" is a placeholder for what you see across
multiple frame_number 's .

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