Wasn't it Paul Jones who wrote:
>Hello,
>
>Does anybody know how to create an isosurface for the atomic orbitals?
>Specifically the s, p and d (I can't find the equations for the f
>orbitals....). I have forgotten most of my quatum physics and even more math
>(calc and diffeq).
>
>Any guidance or scene files would be much appreciated  :-)

s orbitals are easy, they're just spheres.


One of the d orbitals is available as the f_quantum(x,y,z,0) function.

#include "functions.inc"
isosurface {
  function {f_quantum(x,y,z,0)}
        max_gradient 2
        contained_by {sphere {0,8}}
        pigment {rgb 1}
}

In the old MegaPOV syntax it's {"func_11" <0>} .


I don't know about the rest.

-- 
Mike Williams
Gentleman of Leisure

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