Nuke 5 Essential Training
Illustration by John Hersey

Transforming geometry


Nuke 5 Essential Training

with Steve Wright

Video: Transforming geometry

To animate Geometry in Nuke, there are three different tools you can use. Each geometric primitive has transformations built into the node. There's also the TransformGeo node and there's an Axis. Let's start by going up to the 3D tab, select the Geometry pop-up and we'll add a Sphere. A little more room for the 3D Viewer, switch the Viewer to 3D, click in the Viewer, f on the keyboard, zoom out, orbit around.
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  1. 1h 6m
    1. Welcome
      1m 17s
    2. Touring the interface
      4m 29s
    3. Keyboard shortcuts
      7m 26s
    4. Building node trees
      4m 34s
    5. Editing node trees
      4m 13s
    6. Node tree operations
      5m 21s
    7. Viewer nodes
      3m 2s
    8. Viewer navigation commands
      5m 50s
    9. Timeline controls
      2m 31s
    10. Project settings
      2m 20s
    11. Adjusting node parameters
      4m 48s
    12. Undo and Redo
      1m 15s
    13. Adjusting additional node parameters
      3m 16s
    14. The Node tab
      1m 59s
    15. Project: Compositing a jet fighter over clouds
      6m 6s
    16. Creating a flipbook
      1m 47s
    17. Rendering to disk
      5m 59s
  2. 56m 53s
    1. The Transform Jack
      3m 33s
    2. Setting keyframes
      4m 15s
    3. Motion blur
      3m 25s
    4. Showing and hiding curves
      4m 0s
    5. Navigating in the Curve Editor
      1m 49s
    6. Editing curves
      4m 54s
    7. Curve types
      4m 9s
    8. Linking parameters
      2m 57s
    9. Link expressions
      3m 54s
    10. Math functions
      5m 0s
    11. Resizing and cropping different formats
      2m 41s
    12. Bounding boxes
      1m 9s
    13. Reformatting images
      6m 26s
    14. Cropping images
      2m 20s
    15. The Merge node
      4m 11s
    16. Image blending operations
      2m 10s
  3. 1h 22m
    1. Color management in Nuke
      4m 45s
    2. Color management workflow
      6m 55s
    3. Using LUTs
      5m 16s
    4. Working with pre-multiplied CGI images
      2m 4s
    5. Preprocessing images for the viewer
      5m 42s
    6. The Color Picker
      8m 5s
    7. The Grade node
      8m 22s
    8. Setting Grade node parameters
      4m 10s
    9. The ColorCorrect node
      5m 29s
    10. The ColorLookup node
      4m 56s
    11. ColorLookup node workflow
      4m 28s
    12. The HueCorrect node
      5m 48s
    13. Drawing shapes with the Bezier node
      4m 24s
    14. Keyframing animation with the Bezier node
      4m 17s
    15. Additional Bezier node controls
      2m 43s
    16. Masking operations in the Bezier node
      5m 25s
  4. 1h 10m
    1. Nuke's channel management system
      4m 52s
    2. The relation of the channels to the viewer
      2m 33s
    3. The Shuffle node
      5m 32s
    4. The Copy node
      3m 17s
    5. Creating new channels
      5m 35s
    6. Processing channels
      1m 54s
    7. The ShuffleCopy node
      2m 42s
    8. The ChannelMerge node
      2m 11s
    9. Compositing CGI
      6m 10s
    10. Adjusting the multi-pass composite
      2m 17s
    11. Compositing a multichannel element in an EXR file
      7m 42s
    12. The B-side paradigm
      2m 12s
    13. Setting up a motion tracker
      5m 14s
    14. Offset tracking
      1m 59s
    15. Applying tracking data
      3m 56s
    16. Performing a match move
      3m 22s
    17. Tracking Bezier control points
      2m 43s
    18. Tracking a four-corner pin shot
      6m 30s
  5. 1h 31m
    1. The Keyer node
      6m 56s
    2. Using the HSV tool as a chroma keyer
      3m 12s
    3. The Difference node
      2m 4s
    4. Understanding how Primatte works
      3m 5s
    5. Setting up a basic Primatte key
      3m 50s
    6. More Primatte operations
      5m 53s
    7. Degraining a garbage matte
      4m 49s
    8. Setting up the IBK Color node
      2m 48s
    9. Adjusting the IBK Color node
      5m 24s
    10. Adjusting the IBK Gizmo node
      6m 3s
    11. Adjusting the edges
      1m 35s
    12. Filling in the core matte
      1m 35s
    13. Autolevels
      1m 38s
    14. Using the IBK Gizmo color pick mode
      1m 51s
    15. Adding more control to blended edges
      5m 18s
    16. The great keying delusion
      1m 42s
    17. The Keymix node
      6m 35s
    18. Using Keymix within a keyer
      2m 20s
    19. How the Addmix node works
      3m 17s
    20. Compositing with the Addmix node
      4m 29s
    21. The Read node
      3m 2s
    22. The FrameHold node
      1m 52s
    23. The TimeOffset node
      1m 59s
    24. The Retime node
      4m 0s
    25. Upgrades to the Read node in Nuke 5.2
      1m 56s
    26. Variable speed timing
      4m 2s
  6. 1h 23m
    1. Overview of the 3D tools
      2m 30s
    2. Navigating the 3D viewer
      5m 25s
    3. Adding a 3D card
      7m 26s
    4. Adding a 3D cube
      3m 48s
    5. Adding a 3D cylinder
      2m 17s
    6. Adding a 3D sphere
      3m 27s
    7. The ReadGeo and WriteGeo nodes
      4m 52s
    8. Adding a 3D camera
      4m 5s
    9. Animating a camera move
      2m 42s
    10. The Scanline Render node
      4m 20s
    11. Viewing geometry over the background
      6m 58s
    12. The Scene node
      3m 21s
    13. Adding lights to a scene
      7m 0s
    14. Adding multiple cameras
      7m 39s
    15. Projecting textures onto a plane
      5m 38s
    16. Projecting textures onto a sphere
      2m 8s
    17. Projecting textures onto a cylinder
      1m 36s
    18. Adding an Axis node
      4m 42s
    19. Connecting the camera to the UV project node
      3m 54s
  7. 1h 7m
    1. Basic Bicubic operations
      4m 20s
    2. Adding more control points
      3m 26s
    3. Animating bicubics
      1m 50s
    4. Transforming geometry
      3m 9s
    5. Hierarchical animation
      5m 29s
    6. Setting geometry to look at a target
      4m 46s
    7. The DisplaceGeo node
      6m 8s
    8. The ProcGeo node
      5m 51s
    9. The Trilinear node
      3m 50s
    10. The Diffuse node
      5m 42s
    11. The Phong node
      5m 44s
    12. The Project3D node
      3m 25s
    13. Creating a material
      2m 21s
    14. The ApplyMaterial node
      3m 35s
    15. Environment lighting
      7m 56s
  8. 1h 30m
    1. 3D motion blur
      4m 14s
    2. Anti-aliasing
      2m 51s
    3. The Motion Blur 3D node
      3m 56s
    4. The Motion Blur 2D node
      4m 54s
    5. Project: Adding a 3D background to a clip
      2m 53s
    6. Roughing in the background
      7m 32s
    7. Aligning the background
      9m 19s
    8. Project: The Pan-n-Tile shot
      3m 54s
    9. Setting up a reference cylinder
      6m 34s
    10. Setting up the tile cards
      5m 29s
    11. Positioning the tile cards
      4m 50s
    12. Aligning the tile cards
      1m 12s
    13. Setting the Z-Blend
      3m 0s
    14. Project: The camera projection
      2m 32s
    15. Viewing the wireframe over the background
      1m 52s
    16. Setting up the projection
      5m 15s
    17. Roughing in the first tower
      5m 3s
    18. Adding the projection camera
      2m 21s
    19. Adding the scene camera
      4m 52s
    20. Project: 3D re-projection
      2m 49s
    21. Creating the re-projection
      4m 45s

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Watch the Online Video Course Nuke 5 Essential Training
10h 9m Beginner Mar 18, 2010

Viewers: in countries Watching now:

Nuke 5 Essential Training was created and produced by Steve Wright. We are honored to host his material in the Online Training Library®.

Nuke 5 Essential Training is designed for digital artists already familiar with compositing visual effects using programs like Adobe After Effects or Shake. This course provides a solid foundation in operating Nuke, using the core functions of keying, motion tracking, and color correcting, as well as Nuke’s key strength, 3D compositing. Tour the Nuke user interface, its unique color management system, and overviews of HDR images, masking, keyframe animation, and 2D and 3D motion blur. Exercise files accompany the course.

Topics include:
  • Navigating the Nuke 5 interface
  • Building node trees
  • 2D transformations
  • Rotoscoping
  • Keyframe animation
  • Editing animation curves
  • Color correcting
  • Multi-pass CGI compositing
  • Working with Nuke channels
  • Bluescreen and greenscreen compositing
  • 2D motion tracking
  • Math expressions
  • 3D compositing
3D + Animation Video
Steve Wright

Transforming geometry

To animate Geometry in Nuke, there are three different tools you can use. Each geometric primitive has transformations built into the node. There's also the TransformGeo node and there's an Axis. Let's start by going up to the 3D tab, select the Geometry pop-up and we'll add a Sphere. A little more room for the 3D Viewer, switch the Viewer to 3D, click in the Viewer, f on the keyboard, zoom out, orbit around.

And here are the Transform parameters built into the Sphere node and, of course, we can edit any of these values and transform our Sphere. Okay, we'll undo that. We can also add a TransformGeo node, so we'll come up to the 3D tab, come to the Modify pop-up and select TransformGeo. You'll notice the TransformGeo Transform parameters are absolutely identical to the Sphere. In fact, they're an exact duplicate. So, we can animate the Sphere, also, using the TransformGeo node, as well. I'll reset that.

Now to edit an Axis, we'll click off to the side over here, come up to this 3D tab and select Axis. And again, we have the exact same set of Transform parameters. Okay, looking at the TransformGeo node, you'll see that it has an Axis input, so we can connect that to the Axis here and yet again, a third way of moving the Geometry, just like we did before, and we'll undo that. So, what's the difference? What's the point? All right. I'll show you.

I'll move the Viewer out of the way, because we don't need that. Double-click on the Sphere node. The Transform parameters in the Sphere node can only move that Sphere. The TransformGeo node can transform any Geometry, including an OBJ file or a cluster of Geometry that's been merged using the MergeGeo node. We'll double-click on the Axis here and the Axis can only move things that will accept an Axis input, such as the TransformGeo node.

But here's another thing the Axis node can do. I'm going to select the TransformGeo node, copy it, paste, paste, paste and paste. So, I now have a whole bunch of TransformGeo nodes. I can now hook the Axis input of all these TransformGeo nodes up to our Axis and now, if I animate anything in this Axis, all of the TransformGeo nodes will inherit it. The TransformGeo node also has this other interesting-looking input called look.

We'll be taking a look at look later, but what it does is it allows the Geometry to look at, or stare, at a target object. So, we'll see that in a minute. In the next video, we'll see how to use the MergeGeo, TransformGeo and Axis nodes to do a typical production problem.

Find answers to the most frequently asked questions about Nuke 5 Essential Training .

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Q: When opening a file ending with the .nk extension by selecting Image > Read, the error "nkReader plugin not found" appears. This happens when using Nuke 6 PLE on a Windows 7 machine. What is causing this error?
A: The Image -> Read function is only used for images and footage. The “nkReader plugin not found” error appears if the user attempts open a Nuke script with Image > Read. To open a .nk script, use File > Open.
Q: In the IBK Keyer video you refer to the “core matte” but I cannot find such a node.
A: The "core matte" is not a node, it is a technique common to bluescreen and greenscreen keying. It is a solid matte that fits inside the key made by the keyer in order to fill in the "core" of the matte. It can be created any number of ways, so I was basically saying "create a core matte any way you wish, and use it here".
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