"Marc" <jac### [at] wanadoofr> wrote in message 
news:461ea7ed@news.povray.org...
> The grass object is a tuft of grassblades . the trick is I don't rotate it 
> with rand but with v_turbulence instead. it looks like swirls caused by 
> wind.

ahhhh .... just the hint I was looking for ..... I have a blade and clumps 
(tufts) that I'm happy with but was using rand to scale and rotate .... so I 
will investigate v_turbulence.

Much Thanks

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