Wicked, mon.  I was looking for something like this.  I wanted to shoot my
pathfinder algorithm at it and see if it could actually turn away without
hitting the center.   I'll play around with your parameters: I wanted
something a lot bigger with more porosity at the beginning and a very gradual
increase to 100% density.

I also think that this type of feature would look cool as fire or a sun.  When
I was asking for pointers on fire-based shapes months ago, this is what I was
actually thinking of.

Thanks.

SamuelT. wrote:

> I hope I understood just what you were saying about the noise3d. If
> indeed I understood you correctly, you wanted a sphere that has a thick
> center while remaining to have a gnarly outside, right?
>
> I just blobbed together an average, but small sphere with a normal sized
> one that has a lot of noise3d. I also fooled around with strength ratios
> between the two objects. The "&(y+1)" is just a plane I intersected the
> object with.
>
> Code:
>
> isosurface{
>
>  function
>   (
>    (x^2+y^2+z^2+noise3d(x*8,y*8,z*8)*8)*
>    (x^2+y^2+z^2+.5/100)
>   )
>  &(y+1)
>
>  threshold 1 sign 1
>
> }
> --
> Samuel Benge
>
> E-Mail: STB### [at] aolcom
> Website: http://members.aol.com/stbenge
>
>   ------------------------------------------------------------------------
>  [Image]

Post a reply to this message