Levelset Cache Node caches data from the last successfully input VDB grid. It avoids recalculation of objects that do not move or etc.
However, be careful about input grid data when performing resume simulations. Grid data must be input at the resume frame.
This node work only on the simulation.

Input / VDB Grid:
Input vdb data to make Levelset Cache. You must connect this input for work.

Output / VDB Grid:
output cached vdb grid data.

on/off:
When checked, output cached levelset data.