How to use IsoOffset to determine which faces are inside object?

[Whatsinaname]

There are two objects intersecting, let's say a sphere and a plane. Now, I want to delete all of the plane's faces inside the sphere. I did it using a Cookie SOP, but I was wondering if this wasn't also possible using an IsoOffset.

Creating a Fog Volume using the IsoOffset, all positions inside the volume equal 1, outside 0...so far, so good.

What do I need to do now in order to get the geometry that is inside the sphere and finally delete it?

Thanks for any ideas!

[kare]

Use group sop, connect plane for left side and connect isooffset to right side.

Enable Bounding tab in group sop and select Bounding volume.

Use delete sop to delete group points.

[Whatsinaname]

Cool, thank you!