Easy-to-follow video tutorials help you learn software, creative, and business skills.Become a member

Creating bump maps

From: ZBrush 3 for Windows Essential Training

Video: Creating bump maps

ZBrush has a special material called the BumpViewerMaterial. It's located here in the lower right-hand corner of the Material Library. This material is useful when you want to create a Bump Map for a 3D character. Now when you are creating a Bump Map, it's a texture that you use in another 3D program such as Maya or 3D Studio Max to add a fine level of detail to an object, but you can create the texture here very easily in ZBrush and then export it for use. I'm going to show you how to do this using the femaleHead_v01 model, which is available to premium users. You can also use one of the demonstration models that comes with ZBrush.

Creating bump maps

ZBrush has a special material called the BumpViewerMaterial. It's located here in the lower right-hand corner of the Material Library. This material is useful when you want to create a Bump Map for a 3D character. Now when you are creating a Bump Map, it's a texture that you use in another 3D program such as Maya or 3D Studio Max to add a fine level of detail to an object, but you can create the texture here very easily in ZBrush and then export it for use. I'm going to show you how to do this using the femaleHead_v01 model, which is available to premium users. You can also use one of the demonstration models that comes with ZBrush.

So now that it's loaded I want to draw it onto the canvas. Press T to switch to Edit mode, F to center it on the canvas. I'm going to expand the Geometry palette and move this all the way up to the highest level, which is 4, for this model. This model has maybe about 100 ,000 polygons on it. So I'm going to divide it at another time to get a little more resolution. Now if you remember PolyPainting, if I choose just the standard material and I turn Zadd off and I have just RGB on and I go to Texture and choose Colorize.

Now I can choose a color and paint it on the surface of the model. I want to use the BumpViewerMaterial. I'm doing the same thing. However, when I paint on the model, look what happens. Instead of seeing a color, I'm seeing a bump. It looks like I have Zadd and I'm sculpting into the model. Of course, it's not quite as extreme, but in reality if I turn so you can see the profile.

I will zoom in a little bit. You can see this depression is not actually reflected in the actual profile of the surface. It's just something that shows up when the light hits the surface, and we are looking on it face on. Now the purpose of a Bump Map in a 3D program is to allow you to add extra detail to a model without having to have the density the model required. You don't actually have to model that as part of the geometry. It's a cheat basically that allows you to create the impression that there is more detail than there actually is.

So when I'm creating a Bump Map for a character, I like to set my Color Picker to a medium value, and then I fill the object with this medium value. So that means everything above this value lighter colors are going to look like bumps coming out and darker colors are going to look like depressions. If I turn to the Basic Materials you will see that this medium gray has been applied to the whole object. If I turn to the BumpViewerMaterial, it looks just white. I want to select a darker color here, I want to set the Stroke type to Spray, and maybe a small Alpha like this.

Now I can turn the Zadd off, because I'm really only painting color. I will start painting on the model. It's a very unfortunate skin problem for this lady. So I'm going to bring the RGB Intensity down, so it's not so extreme. There we go. If I switch back to a Standard Material, you will see I'm actually painting color on here, but with the BumpViewerMaterial it looks like an impression on the surface.

Now what's interesting is I can actually hold the Shift key which normally smoothes it out and this acts like a blur. So now I'm blurring the color on the surface. If I choose Basic Material, it's more obvious. I'm not smoothing the geometry, I'm blurring the texture. I switch back to BumpViewer, you can see when I'm talking about that. If I switch to a lighter color, I want to get bumps. It looks like it's protruding out. If I switch my Stroke type to FreeHand, bring this all the way down to a darker color. If we turn on Lazymouse, I bring my Draw Size down. I can start to create lines on the surface.

Now the quality that you are going to see of the bumps, in other words whether it's jagged or not is going to be determined by the number of polygons you have in your object. So this object right now has about 4,000. So if I divide it again it's just like PolyPainting, the more polygons you have, the more resolution you have, so the better your details will look. You take a look out here using the Basic Material, that's what it looks like.

When I'm finished and I want to export it as a texture, I can go to the Texture palette and do Color To Texture. Before I do this, let me set the resolution of my texture. Right now it's set to 256x256 which is pretty small. Let's try 1024x1024, and now when I do Color To Texture, it's going to convert the color on the model to a texture and place this in the Texture palette. There we can see it's actually a color texture, and it's 1024x1024.

I can export this PSD, bitmap or TIFF format and then bring that into my other 3D program and apply to the model and the Bump Channel and when I render the model it will appear as a bump on the surface.

Show transcript

This video is part of

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

80 video lessons · 10327 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

Start learning today

Get unlimited access to all courses for just $25/month.

Become a member
Sometimes @lynda teaches me how to use a program and sometimes Lynda.com changes my life forever. @JosefShutter
@lynda lynda.com is an absolute life saver when it comes to learning todays software. Definitely recommend it! #higherlearning @Michael_Caraway
@lynda The best thing online! Your database of courses is great! To the mark and very helpful. Thanks! @ru22more
Got to create something yesterday I never thought I could do. #thanks @lynda @Ngventurella
I really do love @lynda as a learning platform. Never stop learning and developing, it’s probably our greatest gift as a species! @soundslikedavid
@lynda just subscribed to lynda.com all I can say its brilliant join now trust me @ButchSamurai
@lynda is an awesome resource. The membership is priceless if you take advantage of it. @diabetic_techie
One of the best decision I made this year. Buy a 1yr subscription to @lynda @cybercaptive
guys lynda.com (@lynda) is the best. So far I’ve learned Java, principles of OO programming, and now learning about MS project @lucasmitchell
Signed back up to @lynda dot com. I’ve missed it!! Proper geeking out right now! #timetolearn #geek @JayGodbold
Share a link to this course

What are exercise files?

Exercise files are the same files the author uses in the course. Save time by downloading the author's files instead of setting up your own files, and learn by following along with the instructor.

Can I take this course without the exercise files?

Yes! If you decide you would like the exercise files later, you can upgrade to a premium account any time.

Become a member Download sample files See plans and pricing

Please wait... please wait ...
Upgrade to get access to exercise files.

Exercise files video

How to use exercise files.

Learn by watching, listening, and doing, Exercise files are the same files the author uses in the course, so you can download them and follow along Premium memberships include access to all exercise files in the library.


Exercise files

Exercise files video

How to use exercise files.

For additional information on downloading and using exercise files, watch our instructional video or read the instructions in the FAQ.

This course includes free exercise files, so you can practice while you watch the course. To access all the exercise files in our library, become a Premium Member.

Join now "Already a member? Log in

Are you sure you want to mark all the videos in this course as unwatched?

This will not affect your course history, your reports, or your certificates of completion for this course.


Mark all as unwatched Cancel

Congratulations

You have completed ZBrush 3 for Windows Essential Training.

Return to your organization's learning portal to continue training, or close this page.


OK
Become a member to add this course to a playlist

Join today and get unlimited access to the entire library of video courses—and create as many playlists as you like.

Get started

Already a member?

Become a member to like this course.

Join today and get unlimited access to the entire library of video courses.

Get started

Already a member?

Exercise files

Learn by watching, listening, and doing! Exercise files are the same files the author uses in the course, so you can download them and follow along. Exercise files are available with all Premium memberships. Learn more

Get started

Already a Premium member?

Exercise files video

How to use exercise files.

Ask a question

Thanks for contacting us.
You’ll hear from our Customer Service team within 24 hours.

Please enter the text shown below:

The classic layout automatically defaults to the latest Flash Player.

To choose a different player, hold the cursor over your name at the top right of any lynda.com page and choose Site preferencesfrom the dropdown menu.

Continue to classic layout Stay on new layout
Exercise files

Access exercise files from a button right under the course name.

Mark videos as unwatched

Remove icons showing you already watched videos if you want to start over.

Control your viewing experience

Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.

Interactive transcripts

Click on text in the transcript to jump to that spot in the video. As the video plays, the relevant spot in the transcript will be highlighted.

Are you sure you want to delete this note?

No

Your file was successfully uploaded.

Thanks for signing up.

We’ll send you a confirmation email shortly.


Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

Keep up with news, tips, and latest courses with emails from lynda.com.

Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

   
submit Lightbox submit clicked
Terms and conditions of use

We've updated our terms and conditions (now called terms of service).Go
Review and accept our updated terms of service.