Xplo Eristotle schrieb:
> 
>:::::::, and I don't
> care to try to discern a working syntax by trial and error... >_<;
>
 
hi,
seems this can be subsumed to FAQ list meanwhile. ;-)
a working syntax for first trials will be something like follows:

//pov code

#declare SPHERE = function{x^2+y^2+z^2-1}          //a basic shape

isosurface{
	function{SPHERE(x,y,z)+0.2*noise3d(3*x, 3*y, 3*z)}  
	threshold 0.5
	accuracy 0.001
	eval method 1
	pigment{...}
	}

//end of example

now play around with the multiplicators in your noise3d function:
raising the values will yield smalles structures and vice versa.
replace e.g. 3*y by a constant, like 1; or another function like
sin(10*y) and watch, what will happen. btw: the multiplicator (0.2 in my
example) for noise function determines, how much noise you apply to your
basic function (best to be compared with bump_size value in the normal{}
statement.)
Now apply noise function not to the sphere as a whole but eg. to the
y-component selectively:
...function{SPHERE(x, (y-0.2*noise3d(3*x, 3*y, 3*z)), z)
and again watch, what will happen...
play around further, and again... have fun


ReVerSi

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