In Figure 11-67 the image on the left shows our preview mesh.
When we Alt+click in Draw mode and activate the gray part of the
horn, the ZSphere becomes a ZMagnet, and we can see the influ-
ence of the magnet when we activate the Preview mode (press the
A key).
We can also carve the mesh using ZSpheres to apply a subtract
effect on the mesh, as shown in Figure 11-68.
Once we’ve finished creating our ZSphere structure, we can press A
again for a final preview and then hit Make Polymesh 3D under the
Tool menu. A new copy of the polymesh will be created so you can
clean the canvas (Ctrl+N), redraw the new copy, and start editing.
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Chapter 11 – Introduction to ZBrush
Figure 11-67
Figure 11-68: Left, the ZSphere is placed. Center, the ZSphere is pushed
back until it enters the root ZSphere. Right, using Preview mode we can see
that this process created a hole in our mesh that is topologically correct.