How to use Subtool in ZBrush

Subtool can consider a single (logically) mesh object to be a number of independent objects, for example, using the Polygroups (multi-transform group) feature to split a single model into several different parts, but the Subtool function allows the user to manipulate each component, like a single grid, The following illustration shows a model made using the Subtool layer.

The following illustration shows the split effect for each subtool layer. The Subtool feature can greatly increase the number of polygons processed so that users can allow each Subtool object to have the limit of the number of polygons the system can handle, for example. If the user's system is capable of handling a 8 million-subtool, the user can process a Subtool model consisting of 4 8 million-in-multiple edges (total 32 million).