Thomas de Groot wrote:
> Interestingly enough, in 1999 Mark Wagner wrote something identical called 
> Vegetate. It was based on the same principles.

Huh. I didn't remember that one. (I vaguely recall some posts a while
back from someone writing a "biologically correct" landscape planting
macro, but I don't remember the code to it ever being posted.)

> It included collision 
> detection, exclusion areas and water levels, slope and timberlines, and a 
> couple of other fancy parameters.

I've skipped collision detection (having trees overlap doesn't strike me
as a problem), and eventually plan to have some notion of a timberline
in the code. I haven't played with any landscapes yet where slope was a
major factor--I'll cross that bridge when I come to it. :-)

> All this not meaning that you should quit now :-)   but it is interesting to 
> see how things come up again and again sometimes.

Keep in mind that you're talking to someone who built his own landscape
generator in C++ for giggles. :-)

-- 
William Tracy
afi### [at] gmailcom -- wtr### [at] calpolyedu

You know you've been raytracing too long when you stop working on a
scene even before you render it because you believe it is pointless to
make an image if there's no hope of it looking real.
    -- Mark Stock

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