SUBTOOLS

SubTools permit a single (logical) mesh to be treated as many independent objects. Like polygroups, they split a single model into several different components, but the emphasis on SubTools is allowing you to work with each component as if it were a separate mesh. SubTools increases the amount of polygons you can work with by allowing each SubTool to have as many polygons as your system can handle. For example, if your system can handle 8 million polygons for one SubTool you can have a model equal to 32 million polygons by having 4 SubTools of 8 million polygons each.