Christoph Hormann wrote:

> 
> I hope you are aware that placement of bushes and grass is random - i 
> merely select a version of randomness i find most appealing (you can of 
> course argue that this is not so much different from actually placing 
> things manually).
> 
I wasn't totally sure.  Sometimes people combine random with a test 
against a pigment pattern to exclude certain areas, or one can 
manipulate the density or other aspects of the random placement in 
general ways.  I think you use collision detection with your bushes do 
you not?  So I was curious if the grass tufts were being placed with 
some degree of control.  I knew any imposed control would be algorithmic 
not manual of course ;)

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