Spider,
    It's to do with the 'exp(N)' in the translation:
>>translate <exp(N)*Xc, TransY, 0><<

I substitued a '1' and it bounds ->much<- quicker.
e to the power of 1000, then e to the power 999, e to 998 ... are v. large numbers.
Why
would you want to translate something in the direction of x with a huge (near
inifinate)
value when y is only translated to a maximum of 15?

Hope this helps.
    Graham.


Spider wrote:

> Hello... Just a little question here...
>
> I'm trying to place a lot of spheres in a postition, the Y pos is linear, adn the
X/Z is
> smothly changed..
> But, this little pice of code gives me a pain...
> The bounding time is horrible.... (I'm not patient there.)
>
> I'm using winpov, 3.1a .
>
> Any ideas ???
>
> //Spider
>
> #declare drop = sphere { <0,0,0> 0.1 }
> union {
>   #local Drops = 1000;
>   #local DropsInv = 1/Drops;
>   #local EndX = 15;
>   #local EndY = 20;
>   #local Yc = DropsInv*EndY;
>   #local Xc = DropsInv*EndX;
>   #local s1 = seed(666);
>   #local s2 = seed(777);
>   #local N = Drops;
>   #while(N>0)
>     #local TransY = N*Yc;
>     object {
>       drop
>       translate <exp(N)*Xc, TransY, 0>
>       rotate <0,rand(s2)*360,0>
>     }
>     #declare N=N-1;
>   #end
>   pigment { rgb 1 }
>   translate -EndY*0.5*y
> }

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