trackerToAxis v1.0
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14.0, 13.2, 13.1, 13.0, 12.2 or later
This groupnode brings a animated 2D-position (ie. 1point Track) from 2D-space to 3D-space (Position only), it acts as an axis,
so you can pipe it into a transformgeo node.
The distance to the camera can be set or animated afterwards in this node without affecting the 2D xy position in screenspace through the scanline render.
It's useful for example to attatch a particleemitter to an actor.
There is as well a example setup to clarify things more and to show how you can (handanimate) rotation if needed
THANKS to Black Sail Pictures VFX where I developed this node some time ago for the use in a production, they kindly allowed me to publish it on nukepedia.
As well thanks to Eyal Shirazi for bringing my knowledge about 2D/3D space to a higher level, Adrian Pueyo for the dummycam, Helge Stang, Ernest Dios and all others who did give feedback to me.