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Rendering in ZBrush

From: ZBrush 3 for Windows Essential Training

Video: Rendering in ZBrush

Rendering in ZBrush refers to the quality of the display of the objects on the canvas as well as the strokes. By default when you are working in ZBrush, you are in Preview Render mode. Now what does that mean? Let's take a look at the Render settings here. So I have expanded the Render menu and I want to click on this switch to move it to the tray and you can see we have Preview selected and that's the default mode. Preview gives an approximation of the material and also some simple preview shadows. I can change the Random mode by clicking on these buttons. If I change to Flat, you will get the color that is applied to the canvas and nothing else. It's right now I have just the white color. Let's switch to red. Do you see the red color on there? So I'm changing the color of the object.

Rendering in ZBrush

Rendering in ZBrush refers to the quality of the display of the objects on the canvas as well as the strokes. By default when you are working in ZBrush, you are in Preview Render mode. Now what does that mean? Let's take a look at the Render settings here. So I have expanded the Render menu and I want to click on this switch to move it to the tray and you can see we have Preview selected and that's the default mode. Preview gives an approximation of the material and also some simple preview shadows. I can change the Random mode by clicking on these buttons. If I change to Flat, you will get the color that is applied to the canvas and nothing else. It's right now I have just the white color. Let's switch to red. Do you see the red color on there? So I'm changing the color of the object.

If I expand the Tool palette and I'm going to go down to Texture, click on Colorize and then just quickly paint some color on here and you will see, I'm just seeing the color of the object and nothing else. I will turn Colorize off to remove that and switch back to white here and change my render quality from Flat to Fast. Fast is very simple render quality. It doesn't necessarily show much about the material but it does show basic light interaction. And as the name implies, it's a fast render mode to work in especially if your canvas gets very complex.

We have Preview, we also have Best and Best gives more accurate shadows and a better depiction of the material properties. There is also a lot of adjustments we can make to have best render quality works. If I want to refresh the render in ZBrush, I can always click the Render button and that will instantly re-render the canvas. If I switch to Preview select Cursor and drag down here, it will just do a best quality render of a region around the area where I picked.

Some other options, I have in here are Soft RGB if I want to improve the antialiasing quality, the quality of the edges here like I can see there kind of jaggy there. If I turn on Soft RGB, it will help to smoothen out when it renders. SoftZ does the same with the depth information. It just improves the quality of the depth rendering when you in best render quality. When you are working on illustrations, one way to improve the antialiasing of these edges because you can see even when I have Soft RGB on, it still little jagging. As a general rule, illustrators in ZBrush select to work it twice their final resolution and then half the size the resolution. You can do that by clicking this button or the half button in the Document palette.

When you do that that sort of, helps ZBrush deal with antialiasing around the edges of 3D objects and doing the half these strokes. I will go back to Actual here. Here are few more antialiasing controls down here that allow you to improve the quality. You can adjust the quality of Preview Shadows when you are in Preview mode. We also have a few overall color adjustments so that you can make. Turn that on by clicking Adjust and I can change the Brightness and Contrast and I even have Add a Curves, for some of these qualities.

Our reflectivity with certain materials is something that you will see better when you are in best quality mode. So let's take a look at that really quickly. I'm going to switch to the ReflectiveMap material and you can see that we have a nice reflective material here and we also have a texture which is determining what's being reflected. I'm actually going to go quickly to the Materials palette and take a look at the Modifiers for this material. So we will go to Materials and I have click on the Switch to zap it over here.

I have ReflectiveMap selected. I'm going to expand Modifiers and what I'm concerned with this the actual image that's used for the reflectivity and to find that, scroll up here. This particular material has two shader in it. This one which has all the slider controls, Shader 1 which actually has the reflection controls. I can change the texture by clicking on this and choosing a different texture here. And then I can adjust the amount of reflection by moving these two sliders and I have additional reflection controls in the second shader, Shader2.

In addition to reflectivity, I also have Environment reflectivity, that's the slider right here. So why I do have two reflection curves or sliders? Well this one actually is related to the textures in the Environment section of the Render palette. If I turn this to Texture, and let's say change to this, just a little more obvious. I can start to actually combine different textures to make different reflection qualities.

The Environment reflection, as you notice, has added right after the rest of the object has been rendered. So it's, sort of, a post render action that's applied and you can choose to reflect the objects in the scene, texture, the simple color. I will just turn it off altogether. But remember when it's off and you go to adjust Environment Reflection, you won't see any change because Environment Reflection is turned off. So that's the basics of working with render quality when you are in ZBrush. With this object, it's fairly complex but it only takes a few seconds to render but that doesn't mean that it's not possible to make a scene that will take 25, 35 minutes to render. That's certainly possible. I know I have done in enough times and when you are in that situation where you render times, start to get long, make sure you save the document as often as possible. That's going to happen most often when you are creating complex illustration as oppose to actually doing sculpture.

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This video is part of

Image for ZBrush 3 for Windows Essential Training
ZBrush 3 for Windows Essential Training

80 video lessons · 10381 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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