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This course reviews the Nuke 6.3 tools and performance enhancements that make keying, motion tracking, color correction, and 3D compositing in Nuke more powerful than ever. Author Steve Wright covers the introduction of 3D particles, the enhanced spline and grid warping, the all-new planar tracker, an audio scratch track for matching audio cues to effects, and a briefing on deep compositing, the powerful new method of working with deep images.
Nuke 6.3 New Features was created and produced by Steve Wright. We are honored to host his material in the lynda.com library.
Now that the target has been tracked, the Stabilize view has revealed some drift in the tracking data. Fortunately, the Planar Tracker node has some elegant tools for correcting the drift. Watching this right-hand corner here, you see how it's drifting out at end of the shot, whereas at the beginning of the shot, it's right on target, so let's fix that. We'll stop the playhead, we'll go to the last frame, making sure we have our Planar Surface on, our Planar Surface adjusting tools, and our grid. Come down here, and we'll grab that point, and pull it over to line it back up where it belongs.
Notice, it turned cyan. So we now have three colors for the Planar Surface: cyan for a keyframe, blue for a track frame, and jumping to the first frame, yellow for the reference frame. Now when I scrub through the playhead, you can see the drift is gone. Okay, back to Frame 1. Now that we have some tracking data we believe in, let's use it to track an element onto the face of the cube. Let's get our screen space back where it belongs. I'm going to home the viewer with the H key. I'll turn off the Viewer Center mode, I'll turn off the Planar Grid, and turn off the Planar Surface adjustment tools.
What I'm going to do is export a four corner pin tracking data to a graphic element, which will lock it to the four corners of the Planar Surface; not the tracking shape. Okay, let's go get an element. So from our Read node, we'll select the Project Media folder, our Lesson_06_Media, and our Nuke logo. We'll open that; okay. With the Read node selected, we come up to the planar tracker controls, the output pop-up menu, and select CornerPin (absolute). That means I want to corner pin that graphic absolute inside my yellow planar surface.
We'll select that, and it hooks it up to the logo. And if I use Alt+E, you can see that it's linked to the Planar Tracker node. All we have to do now is attach a Merge node by typing M on the keyboard, hook that up to our original clip, and there is a composite. Now I can turn off my Planar Surface, and then I can type O in the Viewer to just eliminate all of the overlays, and now we can play our track element on the background.
Now that we have an idea of the overall planar tracker workflow, we can back up, and take a closer look at some more of the controls and options, as well as how to handle special cases.
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