Chetal Gazdar covers how to achieve depth projection in Nuke.
A while back, tutorial author Chetal Gazdar posted a look into creating camera and depth projection with Black Magic Design Fusion. The tutorial looks at techniques on how the camera projection technique works. Also covered is a method for manually creating the depth map utilized in the projection technique.
Now, Gazdar shares some similar techniques only using Nuke. There are some small differences between the two power-house compositing applications, but for the most part, the foundation of the technique is very similar. You can download the Nuke project file for the tutorial here.