LOL Roubal that's pretty clever
FractalBuddha those are some cool tests! Maybe there is a way to 3D offset the generator so that the center of the sphere is different, like a PSR transformation.
Perhaps we need another map similar to Falloff Map, but instead like "Depth Map" which may not be the best name for it because it would be confused with the traditional meaning. This Depth Map would be like depth from the surface of the object. Like how Stroke works in photoshop, but INTO the object. like submerging it. 3D Distance from the closest surface, or surface normal and measure inwards. idk... I feel like volumetric stuff could be way more involved and controlled.