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ZBrush 3 for Windows Essential Training

Applying transparency


From:

ZBrush 3 for Windows Essential Training

with Eric Keller

Video: Applying transparency

If you want to create an illustration that has the look of a transparent objects in it, there are couple of ways to do this. The first way is to actually use the Rgb Intensity slider. I'm going to switch to the Sphere 3D tool, and notice that by default Rgb Intensity has set to 100. I want to switch to the BasicMaterial. There is nothing about his material that is transparent by default. That's an opaque material. So I'm going to draw a sphere on to the canvas. Without changing the material at all, I'm going to lower the Rgb Intensity, and draw onto the canvas. And now we get, semi transparent sphere.
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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

Applying transparency

If you want to create an illustration that has the look of a transparent objects in it, there are couple of ways to do this. The first way is to actually use the Rgb Intensity slider. I'm going to switch to the Sphere 3D tool, and notice that by default Rgb Intensity has set to 100. I want to switch to the BasicMaterial. There is nothing about his material that is transparent by default. That's an opaque material. So I'm going to draw a sphere on to the canvas. Without changing the material at all, I'm going to lower the Rgb Intensity, and draw onto the canvas. And now we get, semi transparent sphere.

The more I lower the Intensity, the more transparent the sphere becomes. I can go to the Draw palette, and add a little bit of Refraction to this Transparency. It's only going to effect new spheres that I draw on the canvas that have a low Rgb Intensity. You can start to see some of that Refraction there. It might be a bit much so, let's pull that down to about 4, here we go. You can see the light is being bent around these areas, around the corner. So that's one way to create transparency in you objects, and you can draw that on the canvas, and now it's been converted to pixel, so I can incorporate this into an illustration.

Another way is to use the material transparency. So I'm going to press Ctrl+N to clear the document. I'm going to turn Rgb Intensity back to full strength. In fact, I'm going to choose a different Material all together. This is a ToyPlastic material. Let's draw a sphere, or two, or three on the canvas, and to create the look of the transparency, if I go to the Material palette and increase the Transparency slider, we don't see any difference. In fact, if I go and Render, using Best Render quality, I still don't see anything transparent.

In order to get the Transparency to actually work, this works with Document layers. So let me turn this back to Preview, let's create a new layer, and now I'm going to draw some spheres on this new layer, and I'm going to increase the Transparency. I don't see anything different yet. The key is this Flattened button. If I turn this off, now I get the Transparency that I would expect.

It's kind of a strange workflow. If you want to create a transparent object using the controls in the Material palette, including the Transparency Curve to adjust the Transparency based on the facing parts of the object, in other words, the parts of the sphere that face us are more transparent, than the parts that are on the edge, and that's controlled by this curve. This is the center transparency, and this is the edge transparency. We will bring that up; now the edge becomes transparent as well. And then when I Render using Best quality, looks a little bit better. That is the secret to creating transparent objects when you are working on an illustration in ZBrush.

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