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Creating sharp edges with the Crease tool

From: ZBrush 3 for Windows Essential Training

Video: Creating sharp edges with the Crease tool

ZBrush is well-known for making nice, smooth, organic models, but it's certainly not limited to that. You can also create more manufactured looking or hard edge surfaces by adding creasing to your models. So I'm going to start with a very simple model to demonstrate this. I'm going to load up the Poly Sphere which is my favorite starting model. To do this I'm going to press on the Default ZScript button and this is just a shortcut technique to bring up that Poly Sphere. So I get the startup screen, click on Poly Sphere. Immediately it's on the canvas and I'm in Edit mode and here it is. See Edit mode is activated and I can rotate the model. I'm going to go to the Tool palette and click on Geometry and reduce the number of Subdivisions by moving that slider down to one.

Creating sharp edges with the Crease tool

ZBrush is well-known for making nice, smooth, organic models, but it's certainly not limited to that. You can also create more manufactured looking or hard edge surfaces by adding creasing to your models. So I'm going to start with a very simple model to demonstrate this. I'm going to load up the Poly Sphere which is my favorite starting model. To do this I'm going to press on the Default ZScript button and this is just a shortcut technique to bring up that Poly Sphere. So I get the startup screen, click on Poly Sphere. Immediately it's on the canvas and I'm in Edit mode and here it is. See Edit mode is activated and I can rotate the model. I'm going to go to the Tool palette and click on Geometry and reduce the number of Subdivisions by moving that slider down to one.

I'm going to add a couple of lower levels of Subdivision by clicking on Reconstruct Subdivision. So this is like the opposite of dividing the model. It's adding lower levels of Subdivisions. So I'm down to about that level, which is good. Now I turn on Frame mode here, we can see the wire frame drawn on the object and I'm going to make a couple Polygroups. So let's go to Transform, turn on Point Selection, so the selection is a bit more accurate and I'm just going to press Ctrl+Shift, drag, release the panel from the tablet, there we go. This is what we have now.

Now I go to Polygroups and do Group, there is a -- that changes color. I press Ctrl+Shift, click on the canvas. See I have two Polygroups now. When I make a crease it's going to crease the outside edge of whatever is visible on the canvas. So to hide this part of the model, I just Ctrl+Shift+Click on my Polygroup. There we go. I'm going to zoom-in here and I'm going to click on the Crease button. When I do that, you see a slight change to the shape or more importantly you also see a little dotted line here, you have to zoom-in very closely to see this.

This dotted line indicates that there is a crease now on this edge. So when I press F to center the model, Ctrl+Shift, so I can see the whole model and this is little bit more obvious with Frame mode off. So I'm going to turn Frame mode off and increase the Subdivisions on the model and there we see a nice hard edge has been created on that Polygroup. Thanks to the creasing. I'm going to go through the process one more time. So let's turn Frame mode back on. Let's make another Polygroup. Let's say we are going to do this area right area. So Ctrl+Shift+Drag then release. I have this area right here. Just to make it slightly more interesting, let's remove this middle section here too.

So Ctrl+Shift+Drag over here, release the Shift key and let go. Now I'm going to make a Polygroup. To make a crease on a model you don't need to make polygroups, but I find it's a good idea. Makes it a little bit more easy to work with, especially if you had to go back and change something about the model. Press that Crease button and our crease is now applied to this polygroup. Ctrl+Shift+Click, you can see that the model has been slightly changed in its shape but it's much more obvious, once I increase that Subdivision level. Turn off Frame button. You can really see it there.

I bring this down again. I'm going to turn on Frame mode and isolate this group again by pressing Ctrl+Shift+Click on it. Now it's isolated and to remove that crease, I just press Uncrease. Ctrl+ Shift+Click, increase the Subdivisions. Turn off Frame mode and we are back to where we were before. There is a little bit of residual crease there. We can get rid of this by choosing the Smooth brush from the Brush library. Reduce the intensity and just paint over to smooth out that area.

So it doesn't perfectly remove that crease but it does a pretty good job. But that's a good way to get started. If you want to make some kind of hard surface model like a piece of armor or some kind of product or something like that, this is a really good technique for making more of a manufactured look and less of an organic look.

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This video is part of

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ZBrush 3 for Windows Essential Training

80 video lessons · 10261 viewers

Eric Keller
Author

 
Expand all | Collapse all
  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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