Join Mark Christiansen for an in-depth discussion in this video Lock an element for roto, part of After Effects Compositing: 6 Tracking and Stabilization.
- In this lesson, I'll show you one of the most…common and useful applications…of motion tracking and visual effects,…locking off an element or scene,…in order to rotoscope it more easily.…Here you can see this hat that has been…very nicely roto'd to remove it from the background scene,…so it can sit it in front of where…we're moving our guy there.…This was achieved by locking off the hat…and performing the roto in place.…And, as you can see, there are far fewer key frames required…than there were to actually track the object,…so in other words, we've saved ourselves a lot…of chasing the element around by doing it this way.…
Okay, so let's work right in this comp.…I'll just go ahead and delete the track…that I had before, to start over.…And reset its anchor point.…And of course, when I do that,…I need to reset position as well.…I can also turn off the track mat that I set.…Just keeping this mat around,…because I'm not going to start the roto over from scratch.…
So, here then is just the source layer.…Now, to stabilize it, there is a trick, because it…
Here, Mark Christiansen shows how to use the five different After Effects trackers, customizing them to work best in the situations that motion graphics artists encounter most often. He covers the fundamentals, as well as opportunities to think outside the box, especially when an automated approach won't work.
- Why point track?
- Recognizing trackable points
- Offsetting a tracker
- Applying the track to a matte
- Using nulls and third-party scripts to create track mattes
- Tracking and stabilizing objects and planes
- Automated tracking
- Applying 3D tracks
Skill Level Intermediate
VFX Techniques: Crowd Replication with After Effectswith Lee Lanier2h 54m Intermediate
VFX Techniques: Tracking Objects onto a Facewith Lee Lanier2h 42m Intermediate
1. Why Point Track?
2. Complex Motion Tracking
3. Adding Tracking Tools
4. Tracking and Stabilizing Objects and Planes
5. Working with Automated Tracking for VFX
Apply a 3D track4m 41s
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