Understanding the workflow

ModelBuilder is a major upgrade to the old Modeler node which is now gone.…Using a clip with a solved camera you can build basic geometry to project all or…parts of the scene onto.…The ModelBuilder is a NukeX only node, but the geometry and projections you…create can be used in regular Nuke.…You'll find the script in the Exercise Files the ModelBuilderScript.nk which…already has a nice Camera Solve, PointCloud ready to go, this will save time.…So, I'm going to ping pong my timeline, which I like to do when I'm tracking, to…take a look at the little sample clip we have here.…

This is a little test clip that I created that makes for a very easy camera…track, so everybody has a happy experience.…Okay, we'll stop that and jump to frame 1.…So let's take a look at our camera solve, I'll open up the Scene node, we'll…jump to the 3D view and there is our solved scene.…Now you do not need a PointCloud, but you do have to have a TrackedCamera.…We'll go back to the 2D view and see how to hook up the ModelBuilder node, I…