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ZBrush 3 for Windows Essential Training
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Activating symmetry


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ZBrush 3 for Windows Essential Training

with Eric Keller

Video: Activating symmetry

One distinct advantage ZBrush has over working with clay in the real world is that you can use the Symmetry tools to work on both sides of the model at the same time. This is a huge timesaver and it also -- it's part of the reason it's so easy to sculpt in ZBrush. I'm actually going to use my own file, but Premium Users can open this file from the ZBrush files folder or you could also use one of the models that come with ZBrush, they are found on the startup screen. I'm going to load this model using the Tool palette and the model is called oldMan_v01. Now that I have him loaded, I'm going to draw the screen to drag him out and I'm going to switch to Edit mode.
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  1. 2m 27s
    1. Welcome
      30s
    2. Using the example files
      46s
    3. Overview
      1m 11s
  2. 26m 18s
    1. Understanding pixols
      1m 58s
    2. Establishing canvas size and color
      2m 30s
    3. Positioning 3D objects
      4m 33s
    4. Working with trays and palettes
      2m 52s
    5. Sculpting models in Edit mode
      3m 12s
    6. Discovering sculpting brushes
      5m 29s
    7. Saving models
      1m 27s
    8. Managing memory in ZBrush
      1m 44s
    9. Setting interface preferences
      2m 33s
  3. 1h 52m
    1. Customizing the startup 3D meshes
      5m 44s
    2. Deforming 3D models
      5m 11s
    3. Activating symmetry
      4m 35s
    4. Creating armatures with ZSphere
      8m 28s
    5. Posing armatures with ZSphere
      8m 54s
    6. Working with levels of detail
      7m 33s
    7. Masking geometry
      5m 43s
    8. Hiding and showing polygons
      6m 29s
    9. Organizing geometry using polygroups
      8m 57s
    10. Extruding geometry with edge loops to make necks and ears
      10m 11s
    11. Creating sharp edges with the Crease tool
      4m 19s
    12. Adding parts to your model with subtools
      5m 18s
    13. Posing models with Transpose pt. 1
      7m 35s
    14. Installing the Subtool Master plugin
      4m 29s
    15. Posing models with Transpose pt. 2
      13m 52s
    16. Installing the Transpose Master plugin
      5m 7s
  4. 58m 51s
    1. Sculpting with brushes
      11m 22s
    2. Choosing stroke types
      2m 20s
    3. Using Lazy Mouse
      4m 28s
    4. Sculpting fine details with alphas
      5m 9s
    5. Creating alphas
      6m 46s
    6. Creating stencils from alphas
      9m 28s
    7. Storing morph targets
      6m 4s
    8. Isolating details with 3D layers
      6m 23s
    9. Building surfaces by extracting meshes
      6m 51s
  5. 1h 13m
    1. Picking colors
      3m 2s
    2. Applying textures
      4m 15s
    3. Creating seamless textures
      3m 8s
    4. Painting models
      7m 51s
    5. Mapping 3D model texture coordinates
      5m 32s
    6. Adding sculpture reference planes
      11m 21s
    7. Applying materials
      4m 10s
    8. Modifying standard materials
      10m 17s
    9. Applying MatCap materials
      2m 22s
    10. Creating MatCap materials
      9m 9s
    11. Creating bump maps
      5m 55s
    12. Painting with photos
      6m 31s
  6. 6m 7s
    1. Exporting models
      2m 30s
    2. Importing models
      3m 37s
  7. 1h 1m
    1. Getting started with 2.5D tools
      5m 10s
    2. Modifying paintbrushes with stroke types
      3m 42s
    3. Positioning strokes and models on the canvas
      5m 14s
    4. Using snapshots
      7m 32s
    5. Understanding ZSub and ZCut
      4m 2s
    6. Creating document layers
      7m 47s
    7. Applying transparency
      3m 23s
    8. Lighting the canvas
      9m 3s
    9. Rendering in ZBrush
      6m 10s
    10. Tuning shadows
      4m 53s
    11. Baking lighting into the graphic
      2m 15s
    12. Creating a sense of depth using fog
      2m 37s
  8. 7m 12s
    1. Recording ZBrush movies
      3m 23s
    2. Using macros and ZScripts
      3m 49s
  9. 20m 50s
    1. Can't rotate or move the model
      1m 0s
    2. Can't sculpt on the model
      59s
    3. Can't adjust the lighting
      47s
    4. Can't control disappearing strokes
      52s
    5. Can't move objects smoothly with the Gyro
      2m 2s
    6. Can't move the model on the canvas
      1m 40s
    7. Can't see some parts of the model
      38s
    8. Can't subdivide the model
      2m 27s
    9. Can't control the pivot of the model
      2m 2s
    10. Can't maintain symmetry
      1m 37s
    11. Can't control subtools
      2m 28s
    12. Can't rotate with Transpose without distorting the model
      1m 51s
    13. Can't activate the Transpose tool
      1m 0s
    14. Can't get rid of blurriness on the mask
      1m 27s
  10. 26s
    1. Goodbye
      26s

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ZBrush 3 for Windows Essential Training
6h 9m Beginner Nov 10, 2008

Viewers: in countries Watching now:

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.

Topics include:
  • Building and posing digital armatures for sculpture
  • Importing models from other 3D programs
  • Learning how to sculpt a human head based on reference images
  • Detailing skin and surfaces using textures and stencils
  • Creating illustrations with depth, lighting, and surface materials
Subjects:
3D + Animation Modeling Textures Materials
Software:
ZBrush
Author:
Eric Keller

Activating symmetry

One distinct advantage ZBrush has over working with clay in the real world is that you can use the Symmetry tools to work on both sides of the model at the same time. This is a huge timesaver and it also -- it's part of the reason it's so easy to sculpt in ZBrush. I'm actually going to use my own file, but Premium Users can open this file from the ZBrush files folder or you could also use one of the models that come with ZBrush, they are found on the startup screen. I'm going to load this model using the Tool palette and the model is called oldMan_v01. Now that I have him loaded, I'm going to draw the screen to drag him out and I'm going to switch to Edit mode.

The Symmetry Controls are found in the Transform palette so I'm going to click on this to move it over to the tray, and you can see -- you can activate Symmetry by clicking on this button right here. I'm going turn Symmetry off and as you notice as I move over the model, I have one brush. I'm going to change the brush size, bring it down a little bit by dragging on the Draw Size slider. As you can see, I'm just dragging over one side of the model. When I activate the Symmetry and I drag over the model, as you can see now I have two brush shapes on the model and if I click and drag suddenly he has got two horns.

In the Symmetry sub-palette of the Transform palette I can change which axis the Symmetry is on. So if change over to Y, you will notice, when I click and drag, oh let's make it a little bit more obvious here, there we go. Because this model is not symmetrical along the Y axis, ZBrush is going to have a slightly harder time figuring out where that Y symmetry is, but when I click on the right spot you can see now he has got some kind of unfortunate disease. I'm going to press Undo a few times just to get rid of those bumps. If I click on Z, I get the Z axis going; I'm going to find a good spot here. There we go, now you can, sort of, see but this model is symmetrical across the X axis, so I'm going to have much more success when I turn on X.

Now when I click on it, I get changes on both sides of the model. This M button here means that the symmetry is mirrored; in other words, it is as if there is a mirror down the middle of the object. So any change I made on one side is mirrored to the other. If I turn this off, it may not be obvious when I use the standard brush, but if I switch to another brush such as the Move brush and start to drag on him you can see what I'm saying here. If I drag this way with mirroring off, it's following the brush. I'm going to press Undo by Ctrl+Z and I'm going to turn mirroring back on and now when I drag you could see the change are mirrored.

So that's what the M button or mirroring does and most of the time, especially when working on heads, you are going to want to leave mirroring on. A couple of other interesting controls here is Radial Symmetry. So now if you notice when I turn Radial on, I don't have just two, I have a whole bunch of brush strokes. Let me see if I can get -- this is a little bit extreme. Let me try this, I'm going to switch to the Standard brush by opening the brush library and select the Standard brush.

Maybe let's bring this count down to a more reasonable level. As you can see, Radial Symmetry causes a very interesting type of change because what's happening is I have four brushes on X, four brushes in Y, and four brushes in Z. So I get some really interesting changes that way. Obviously, not terribly practical when working on a model such as a head but if you are working on a tree or some kind of multi-limbed creature that kind of thing could be a really great way to add a lot of changes all over the model.

So that's the basics of Symmetry and you can see how very useful it is when working on a model or any other type of symmetrical creature. Always remember, as an artist though, that at a certain point you want to start to remove the Symmetry from your characters because people in real life are actually fairly asymmetrical, but it's a great way to get started.

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