Hi!
I try to make a sphere media with a spherical density.
The density should be 1 at the center and constant until x percent of the
radius are reached. Then the density should falloff linear until the radius
of the sphere is reached.
How can I achieve this? density_map?

//********************************
                    media {
                        scattering {3, <1,1,1>}
                        intervals 1
                        density_map {
                        ???
                        }
                    }
//***********************************


Can anyone give an example?
Thanks!

-- 
Erhard Ducke

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