TinCanMan wrote:

> For the leaching, you could try a trick I've used before.   Use a y
> gradient
> like you are but turbulate it and scale it in the y direction.  That way
> you get a bit of variation in the amount of leaching and get a bit more
> streaking effect.

  Yeah, but then it shows also on top of the hoops... I must use perhaps a 
function of y instead gradient, with a layer for each hoop instead trying 
the repetitions to match the distance between hoops.

-- 
Jaime Vives Piqueres

La Persistencia de la Ignorancia
http://www.ignorancia.org

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