Card to Tracker

Reconciles a 2d tracker node from a 3d card. Requires a scanline render setup with a camera attached. 

The location of the trackers is dependent on the project resolution, so if there is a mismatch between the project resolution and the scanline render resolution (such as with a lens distortion workflow), you have to manually set the project resolution to the scanline render resolution, run the tool, and then switch your project resolution back. The tracker will then behave like the 3d card/scanline render setup (requiring whatever redistort or reformat you're using to get back to the proper project resolution. 

Also, there can't be any nodes between the camera and the scanline render you're using or the tool will break. 

Please credit me if you use this.