Need to move, animate, track or otherwise trasform the output? Heres where to go.
Morphs, squish and distort nodes
Transform has a few nodes devoted to grabbing motion data from a moving image called trackers. This motion data can be used in a number of ways:
- Stabilize To remove the motion entirely.
- Remove jitter To keep the global motion but to remove the local motion variations.
- Add jitter The passing-on of the local motion variations to another item.
- Match-move To apply the same motion to another item.
Matching the motion from one source to another is one of the 'big magic' items of compositing. But it has its limits: it is relatively easy to get the camera movement from live action footage and to feed it into a 'synthetic' camera within a 3D application. This enables the matching of 3D output with live action footage. However, it is not easy to match a real camera with another real camera without very expensive hardware. Though it is in the 3D menu, not the Transform menu, the CameraTracker node should also be considered as part of the tracker family.
The transform menu's tracking related nodes are:
See also: Tracker to CornerPin Workflow
Compositing students have a lot trouble managing the format workflow of their project. Here is the workflow for managing this:
When an image is reformated there is often surplus (green area in the image below) or insuficiant. Surplus imformation is dealt with by a consideration of the Bounding Box. Insuficant imformation is deal with Black Outside. Though not an imediate part of the reformat workflow, reformating often requires that these values need attention.