VTK_USE_64BIT_IDS affects the API/ABI
The API should always use 64bit IDs for support of the full range, but internally, 32bit IDs can be used if it is known that there aren't that many items to keep track of.
Cc: @berkgeveci
The API should always use 64bit IDs for support of the full range, but internally, 32bit IDs can be used if it is known that there aren't that many items to keep track of.
Cc: @berkgeveci