I have to draw a molecule in 3D with a little pore represented by a 3D sphere inside of it with the same center. I have never used TikZ but I know that it's useful for drawing in LaTeX and I hope that someone will can give me pointers...
Since you allowed in a comment the option of using "some other package," here's a rendition of nested spheres using Asymptote:
Here's the code:
@SeanAllred Hi , I finally get solution for a 3D sphere with a 3D pore in tikz, this is the code for ones who need it :
i hope it will helps others :)
Here's the result: