uint32 ElementKeyMask
ElementKey = (ElementIndex & EmitterKeyMask) << ElementKeyShift. SortKey = (Key32 >> SortKeyShift) & SortKeyMask.
uint32 ElementKeyMask
ElementKey = (ElementIndex & EmitterKeyMask) << ElementKeyShift. SortKey = (Key32 >> SortKeyShift) & SortKeyMask.