- Posts: 8
- Joined: Sat Feb 10, 2018 3:07 pm
- Real Name: Keith Clementson
Hi Keith,
Welcome to the forum. It seems as though you would benefit from watching (and reading about) some general tutorials about 3D tracking.
Basically what a 3D tracker (any 3D tracker) does is: trying to reconstruct a camera in relation to the real world it's in, so that you can add other objects to your scene.
It does so by finding trackable points and converting them to 'real world' coordinates (they don't have to match in scale, since it's only camera angle that truly matters in this respect, but that's a slightly more advanced topic).
What you're left with is a 3D represenation of your scene i.e. the rooftops. There will be markers that correspond to your real world objects - on every level, not just the ground plane - and if you put 3D objects in that scene they will match with the real scene.
Look on Youtube for some Syntheyes 101 tutorials. This is for a different package (Syntheyes is a dedicated 3D tracker) but the creator of the software provides some very good entry level information that is also - partially - applicable to Fusion.