The After Effects Apprentice 11: 3D Space course from Chris and Trish Meyer has a split personality. Despite the Intermediate rating, most of the course is devoted to a very gentle introduction to using 3D layers, cameras, and lights in After Effects, and is suitable for those relatively new to the program or those who have never used 3D in After Effects before.
However, there are also a pair of higher-level chapters that demonstrate different ways to integrate After Effects and Photoshop to create 3D objects. These techniques include importing 3D models (including mapping a video file onto a surface of that model), using Adobe Repoussé to extrude text or other selections in Photoshop, and using Vanishing Point Exchange plus the ‘Kid Stays in the Picture’ technique to convert flat photographs into compositions you can move a 3D camera around. (Also remember that Chris Meyer has a separate course on lynda.com dedicated to integrating the popular 3D application Cinema 4D with After Effects.) A series of ‘sidebar’ movies at the end discuss rotation and scaling issues in 3D, OpenGL acceleration, and different axis modes for manipulating the position of 3D layers.
If you’ve been looking for a course to take your After Effects skills literally to the next dimension, this is it.
Watch the entire After Effects Apprentice 11: 3D Space course.