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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.
So I have added a gear to my robot model using the Append button in the SubTool palette and now I'm ready to reposition this extra object, otherwise known as a subtool. I'm using the robot_subtools_ v02 file and Premium Users can download this and use it with the support files for this course. So right now, the gear is sitting in the middle of the robot's stomach, and I want to reposition it or resize it and maybe use it as either some kind of chest embellishment or a perhaps a corsage for the robot prom. That's up to you to decide what it's going to be. So when you want to reposition a subtool, you use the Transpose tool. The Transpose tools are multi-functional tool but we are going to start out simply using it to reposition subtools.
So I'm in Edit mode, I have my robot on the canvas and all of the subtools and I want to open the Transpose tool. I just click over to Move, and notice I have Edit activated and I have Move activated. The Move button works very differently if you are not in Edit mode. So you want to make sure that you have Edit mode activated and Move, and what you get when you turn Move on is this interesting looking control. Well let's take a look at the anatomy of this control. This is the Transpose tool. The Transpose tool has three handles. It's basically three circles connected by a center line. The center line is known as the Action line and these circles on the other ends are the handles. If I hover over, I see that there is an inner circle right here. These handles help you reposition the control itself. When I click and drag on the center, that actually makes a change to the model or the currently selected subtool, which in this case is my gear.
So I have the gear selected, I have the Transpose activated, and if I drag on the center, now I have the Move button activated, I can move the entire tool. So let's take a quick look again from the beginning of how we get the Transpose tool working. It is a little bit strange at first but you are going to find it's a really well designed control, it's actually quite interesting. So once again, normally I have Draw activated and Edit activated when I'm just working on the model itself. I want to get the Transpose tool, what do I do? I click on Move, and I get this control right here.
If I want to reposition the Move tool what I can do is I can first drag out the tool just by dragging on the model, since we are not in Draw mode we don't have to worry about sculpting that part, we just have Move activated. I'm going to hover over the center here, and then drag on it to reposition. Now what's interesting is what happens when you drag on the center circle of these other two parts of the Transpose tool. So to reposition the tool all I have to do is just drag on part of the model and right now this looks like a collar which is kind of interesting as well. If I drag on one of the outer ends, I'm suddenly stretching the model itself. So what's happening here? Well it might be a little bit easier to visualize what's going on. If I switch from Move to Rotate and I will come back to Move in second, but this makes it little bit more obvious to see how the Transpose tool works.
What I want to do is I want to rotate this gear so that it's more aligned with his chest here. So I have rotated to a side view by holding the Shift key as I drag it on a blank part of the canvas. I'm going to draw out the Transpose tool again just by clicking and dragging and I'm dragging off to a blank part right here. Now when I click and drag in this, I get a nice rotation there. How is this working? Well, the way it works is the opposite end of the Transpose handle is the pivot point. So when I drag on this using this as the pivot point for the rotation.
If I drag on the other side, the other end is the pivot. So I'm going to press Undo, I'm going to reposition this in the center here and drag and rotate or drag and rotate this way. So what happens is you find that you get very, very fast, especially when working with the digital tablet and I'm just going really quickly here just to show you that it becomes a very intuitive tool once you get used to it. So it's worth putting the practice into it. So this is Rotate mode and I wanted to switch to that because it's a little bit more obvious when you can see that I'm rotating on this pivot.
So when I'm in Move mode and I'm clicking on the center, I'm moving the entire object but if I drag out here, and click right here what's happening is I'm moving parts of the model and this becomes the pivot for the move. So it becomes really kind of a scaling or a stretching tool. Let me demonstrate that again real quick. I'm going to drag it out here, drag it out again and you can see I can sort of non- proportionally scale the tool. I'm going to press Undo to fix that but of course we also have the Scale mode, that's also available.
If I go to Scale mode and drag on this, I get a proportional scale. Let's take a look at Rotate one more time here. What happens when I drag in the center circle when I'm in Rotate mode? Then it rotates around the Action line. I'm going to move to a top view, drag this out; it's rotating using the Action line as the center of axis of rotation. So I'm rotating back to the side view. I'm going to switch to Move mode, I'm going to click on here, and I'm going to drag, reposition, right about there.
If you want to rotate it, so it's parallel to the robot's chest, I can once again draw it out here, maybe reposition this handle and drag until its about the rotation that I like, maybe it looks better this way. I'm going to switch to Scale, drag this out, then start dragging on the central circle and quickly scale it down. Switch back to Move, drag on the center, reposition like that, switch back to Scale, drag out, drag in the scale. Now I realize that's a lot to cover, let's center this guy. So we are going to take a closer look at using Transpose and see how you can use Transpose to actually pose an actual figure.
That's the basics here. Now we have a nice little corsage there. So I'm going to save this as robot_subtools_v03. So the Transpose tool is a great way to move, scale and rotate a model or a model's parts. But it's primary use is actually for posing a model, such as a figure or a character, hence the name Transpose, and we are going to talk about that in another movie.
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