Hi Slime,

Your code gives a parse error here: "#while (HM_Blobs_remanente>0)". I'm
traying to find out the reason.
Don't worry about that JWV.

Thank you,
Oleguer


news:41377955$1@news.povray.org...
> > I'm traying to double this objecte like a bridge, but I only want to
> double
> > in the middle of it, the extremes should be straights. I don't know who
> can
> > I do it. Can anyone help me?
>
>
> If I understand the effect you're going for, you might be able to place
the
> spheres in a parabolic shape (this code hasn't been tested):
>
> #declare Bridge_Width = 5.0; // set to whatever
> #declare Bridge_Height = 2.0; // set to whatever
>
> #while (HM_Blobs_remanente>0)
>  #local blobnum = HM_Blobs_remanente - 1; // (easier to start with index
0)
>  #local blobamnt = blobnum / (How_many_blobs-1) // (number from 0.0 to
1.0)
>  #local blobamnt = blobamnt * 2.0 - 1.0; // (now from -1.0 to 1.0)
>
>  sphere { <blobamnt * Bridge_Width*0.5, (1-pow(blobamnt,2)) *
Bridge_Height,
> 0> 1 , 1 }
>
>  #local HM_Blobs_remanente = HM_Blobs_remanente-1 ;
> #end
>
> This will place the spheres along a curved path from <-Bridge_Width/2,0,0>
> to <0,Bridge_Height,0> to <Bridge_Width/2,0,0>.
>
> The tricky part is the (1-pow(blobamnt,2)), which takes a number from -1
to
> 1 (which represents how far across the bridge the current blob sphere is),
> squares it (to get a number from 0 to 1, higher at the edges of the
bridge)
> and then subtracts that from one (to get a number from 0 to 1, now lower
at
> the edges of the bridge).
>
>  - Slime
>  [ http://www.slimeland.com/ ]
>
>

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