>Is it possible to add a random +/- function to a loop ?

I think so, yes.

>For example I have a loop that is making several copies of
an object
>and I wish to apply a random rotation of say -20*y to +20*y
as the
>objects are being translated by the loop. Is this possible
?


a random number is between 0 and 1, so if you want to use a
random rotation up to twenty, you can obviously use
20*rand(R) to do the trick
Now if you also wish to use negative numbers up (down?)
to -20, you have to subtract 20,

20*rand(R)-20

This 'creates' numbers between -20 and 0.
If you want numbers between -20 and 20, it would look like
this:

40*rand(R)-20

So your rotation would be like :

#declare seed(R)=1999 (happy new year)
rotate <0,40*rand(R)-20,0>

Hope this helps

Julius
http://surf.to/jkhome

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