vfx notes 4

vfx notes 2/23: 3d tracking

possible to derive point data for scene reconstruction from photography

2 types of tracking:

1. CAMERA TRACKING
-re-establishes position of camera in 3d space.
-allows locking of moving 3d objects into static live-action scene.
-allows set extension of static live-action object.

2. OBJECT TRACKING
-re-establishes motion of object in action in 3d space
-allows locking of 3d objects onto moving live-action objects.

use boujou for motion tracking. for camera tracking it is easy! not as easy for object tracking.