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Pixologic's ZBrush 3 stands at the forefront of digital 3D sculpting and 2.5D painting, a new medium that is taking the art and entertainment worlds by storm. Visual effects artist Eric Keller shares his expertise and talents in ZBrush 3 for Windows Essential Training. He presents the concepts behind digital sculpting, shows how to produce fantastic images using the unique ZBrush toolset and interface, and demonstrates the power of the Digital Clay and Sculpting brushes. To offer a richer understanding of the application, Eric gives a guided tour of the interface and addresses the most common problems experienced by new users. Exercise files accompany the course.
When you are working with 3D models in ZBrush, as you rotate around the model, there is a center to the rotation, and this is known as the model's pivot point. Occasionally as you are working you can lose the position of that pivot point or you may encounter strange behavior, where you are rotating the objects and its not rotating in the way that you would expect. Well, you can actually adjust the position of the pivot point using the Preview window here in the Tool palette. This is a little 3D Preview that shows the axis of the model. This will show you that this plane is perpendicular to the Z axis of the model, and this red cross represents the pivot point. I can move it by clicking and dragging on it.
Notice that when I do that I'm actually changing the pivot point for the tool, but not necessarily the subtools. The eyeballs are floating in space because I have changed the pivot point of the tool but not the subtools. So this is relative to the position for all the other subtools. If I want to store this position, I can click on the Store button. Restore, basically restores this view so that we can see it from the front. I pressed Ctrl+Z to undo that, so now we are back to where we were before. Another problem can occur if I'm working on a model and I'm very close to it, and I'm rotating around. Now, notice, I rotate around to get a side view of the face but I'm losing the view of the face in the window. To fix this, remember to turn on your Local button when you are working on 3D sculpting. The reason for this is, this Local button sets the temporary pivot point to the last part of the model that you worked on.
So I'm clicking on the nose here to make a slight change, and now when I rotate the model rotates around the nose, which makes it easier to work. I click over here, now the cheek becomes the pivot point for the model. And that's just a temporary pivot point while I'm working in Edit mode. It doesn't affect this pivot point down here, which is the stored pivot point of the model.
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