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http://www.digitaltutors.com/09/training.php?cid=203&pid=284

由Digital Tutors 公司出品的 3D跟踪Digital Tutors 3D Rotation with Trackers and Trigonometry in Nuke教程，在这一系列的教程中，我们将学习如何使用跟踪和用三角配合，在Nuke的3D系统实现眼睛旋转，然后，我们将创造一个有吸引力的，最后使用一些简单的视频图像和动画技术的合成和品种。

教程所使用的软件：Nuke 5.2 and up

Digital Tutors: 3D Rotation with Trackers and Trigonometry in Nuke

English | 782x646 | VP6F | 15fps 1024kbps | Mp3 96kbps | 775MB

In this series of lessons we'll learn how to use trackers and trigonometry to match rotation of an eye in Nuke's 3D system. We'll then create an appealing final video using a few simple images and a variety of compositing and animation techniques.

We'll begin this project by importing our elements and tracking various features of the face. Once we have a base of tracking data to work off of, we'll learn the basic math terms and ideas that we will use to translate our 2D tracker data into 3D rotation. We'll then learn how to take our mathematical equation, and translate it into an expression Nuke understands. Once we have our rotation expressions working, we'll finish our 2d elements using a variety of color correction, masking and animation techniques. Then we'll combine all our nodes using compositing math to correctly mix everything together.