Beta Optional actionThe 'action' defines how the block volume is represented in the compound block volume stack. 'Add' creates a block volume which is positively selected 'Subtract' creates a block volume which represents a hole or negative space in the overall compound block volume.
Optional locationThe relativity enumeration determines whether the BlockVolume specified is positioned relative to the parent compound block volume origin, or in absolute world space.
The volume of space
This interface defines an entry into the CompoundBlockVolume which represents a volume of positive or negative space.