How about taking the co-ordinates of the lattice and using that in a blob  
statement, and scaling the blob-spheres quite big. Then using a texture  
something like this:
texture{
         pigment{rgbt 1}
	finish{specular .5 reflection {0,1}}
        }

For the electron beam, I would suggest a cylinder with a texture that has  
an ambient value larger than 1.



On Fri, 22 Jan 2010 10:50:46 +0200, che### [at] 163com  
<che### [at] 163com> wrote:

> Dear all
> now I want to draw a scheme for my experimental, I used electron  
> microscopy to
> observe liquid film on nanotube lattice. I have finished the lattice.  
> but do
> not know how to darw a thin film of liquid on the lattice, and I also  
> want to
> draw a eletron beam, which come from the top, and shining onto the  
> liquid film,
> in order to show the working-mode of electron microscopy.
> would you please help me do this. due to I am a new user of pov-ray, I  
> tried
> many days, but failed.
> Your helps are extremely grateful appreciated
>
>
>
>


-- 
-Nekar Xenos-
"The spoon is not real"

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