"Norbert Kern" <nor### [at] t-onlinede> wrote in message 
news:web.44ba9a89bf1ea0bbe6ea00f60@news.povray.org...
> It' s really easy -
>
> 1. define random points (plants) within a square, each with age and size
> 2. check neighborhood of your points
> 3. define new size dependent on
>   - old size
>   - influences of same species
>   - influences of other species
>   - influence of water sensitivity, light, roots...
>   - a small growth step
> 4. raise age
> 5. substitute old or small plants by others with age zero
> 6. goto step 2
>
> After about 40 iterations you have your results.
>

I only recently tried to actually understand what's going on here, even 
though I was overwhelmed by the results of the simulation.  Anyway, this 
explanation made the most sense to me.  Or perhaps it's the only explanation 
which made sense to me, not exactly sure.  ;-)

I hope that you're continuing work on this.  Personally, I have always loved 
the idea of "letting it happen" in POV-Ray, rather than having to 
meticulously manage every minute detail of a scene.  This certainly seems 
like a step in that direction.  Plus, I've always loved outdoor scenes.

This has made me decide to start actively POVing again.  Thanks for that! 
:-)

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