On 5-1-2015 21:43, Alain wrote:
> Just add a wood or onion pattern to the function, or an image pattern to
> get a beter control.
>
> #declare f_particles = function(x,y,z)
> {
>    0.8 - f_crackle(400*x,400*y,400*z) +
>    0.1 * f_granite(500*x,500*y,500*z) +
>    0.9 * f_onion(500*x,0,500*z)
> }

Yes, I had not got that far yet, but that was my intention indeed too :-)

An image is coming soon.

-- 
Thomas

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