Beta The associated BlockVolume is considered a positive space, and any intersection tests are considered hits
The associated BlockVolume is considered a negative or void
space, and any intersection tests are considered misses.
Using the Subtract action, it is possible to punch holes
in block volumes so that any intersection tests may pass
through such spaces
The Action enum determines how the CompoundBlockVolume considers the associated CompoundBlockVolumeItem when performing inside/outside calculations.