Tracking And 3d-object

[rico678]

I have a problem with applying tracking-data to a 3D-Object.
What i want to do:
I have a little movie. I tracked it with three tracking points with transformation, scale und rotation. Now I want to build a 3D-Cube into the movie.
But how do I apply the tracking node to this 3D-Object?

[goee]

2D Track != 3D Track