What am I doing wrong? The idea is to fade out the fog
- at the outer radius = distance + width
- AND at the inner radius = distance - width
Fading out at the outer radius works fine: I can see how the sphere mask works. Instead of filling the bounding box, the volumetric fog has a round shape at the outer radius.
But the inner radius and the Sphere Mask with OneMinus doesn’t work. I can’t create a whole in the fog anywhere.
This is how it looks. The fog is everywhere, but I want to create a hole, i.e. a donut shape.
