CSG Node apply CSG(Constructive Solid Geometry) effect to the VDB Grid.

Input / VDB Grid A:
Input vdb data for CSG. You must connect this input for create.

Input / VDB Grid B:
Input vdb data for CSG.

Output / VDB Grid:
output CSG result vdb data.

CSG Type:
Union A+B: Add B value to A.
Difference A-B: An overlapping part of the A and B is removed.
Intersection AxB: Only an overlapping part of the A and B is left.