Bitmask for selecting edges of a Regular Grid cell.
Can be used to render only a subset of edges. Relevant for rendering only one Constant I/J/K direction.
For Constant K: Can select to renter only top edge using: RegularCellEdges::KPos or bottom edge using
RegularCellEdges::KNeg
Bitmask for selecting edges of a Regular Grid cell. Can be used to render only a subset of edges. Relevant for rendering only one Constant I/J/K direction. For Constant K: Can select to renter only top edge using: RegularCellEdges::KPos or bottom edge using RegularCellEdges::KNeg