Is there a way to limit field to a volume?

Is there a way to make not unlimited field but something that is contained withing a volume?
Maybe with a decay to borders?
Like noise field but that is contained withing sphere?
I started to combine mesh to volume with vector fields but didn’t quite got it.

any advice?


Hi Tim,

Some of the primitives are Signed Distance Functions, which means they can’t be used directly to mask regions. You can add a E_Mask node and that will convert it into a normalized fog volume that you can then use to multiply against vector field via a merge node.

Let me know if you need a hand and I can make you an example.


yes that totally works. that exactly what I was trying to do thanks!
sorry my brain is not brighest today. was doing weird things whole morning while it’s so simple.