_FindUncachedPreviousMasks
maskStackSize += _FindUncachedPreviousMasks(mask, true);
_FindUncachedPreviousMasks(mask, false);
removedMaskStackSize += _FindUncachedPreviousMasks(it->fMask,
_FindUncachedPreviousMasks(mask, false);
size_t _FindUncachedPreviousMasks(AlphaMask* mask,