There are many ways to create a model in ZBrush, but Dynamesh is the most recent base and simplest model creation tool zbrush®. Using Dynamesh allows you to implement a new conceptual design workflow that is no longer subject to traditional polygons and helps you unleash more creativity. There are many models in the scene that need to be reconstructed, and if one clicks on the Dynamesh button, the efficiency may be a little low. Fortunately ZBrush very humanized provides the grouping Dynamesh function, may help us one key to all models to reconstruct the subdivision.
Grouping Dynamesh steps are as follows:
First step. The first thing to do is to merge all the models in the Subtool toolbar. Click the Merge Down button under the Subtool panel, select "OK" in the pop-up shortcut menu, merge all the subtool layers, and after merging, turn on the "grid display" button and you will see that the mesh of the model is different colors. If your model is merged and the grid is the same color, you need to click the auto groups in the Polygroups interface to group the models.
Step two. Then open the Group Group button in the Dynamesh panel.
Step three. Finally, you can dynamesh the entire model by clicking the Dynamesh button or by holding down the CTRL key and pulling the rectangle out of the blank area.