I'm trying to model the Earth's atmosphere (as a sphere) using scattering
media.
The atmosphere's density follows a e^(height) type function.
The available wave types don't seem to include this. I've played with
spherical mapping and poly and cubic wave types,but it's unsatisfactory so
far.

Is there a way for me to create a radial density pattern of A^Br, where 'r'
is the radius and A and B are constants?

-Eric

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