The DOP I/O SOP is designed to streamline the common operation of importing many fields from fluid simulations into SOPs. It also includes a Geometry ROP to save these fields to disk an the option to load from disk rather than use the live simulation.
Load from Disk
Switches between importing fields from DOPs and loading the fields from the geometry file.
If you start a render, it will always use the Import option, ignoring this parameter.
Where to load the fields from when in Load from Disk mode. This also controls where the Geometry ROP will save the fields.
Import from DOPs
See the Dop Import Fields SOP help for these parameters.
Save to File
See the Geometry ROP help for these parameters.
Load From File
See the File SOP help for these parameters.