Join Chris Meyer for an in-depth discussion in this video Perspective tracking overview, part of After Effects Apprentice 12: Tracking and Keying.
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Next, we are going to tackle a more difficult tracking assignment, a corner pin…track, where we need to track four objects in screen all at the same time.…If you have access to the Exercise Files, in the Comps folder open up…04-Corner Pin*starter.…I am going to RAM Preview this quick.…What we have is a computer in an MRI facility, and let's say for some reason we…wanted to replace that display.…In this case just tracking one object isn't going to be good enough, because…there is some slight perspective shift during the course of this shot.…
Therefore, we're going to need to perform some type of perspective track where…we are looking at the corners of the screen individually so that we can warp a…brand new layer to fit the perspective of this original display.…I'll stop my Preview.…Fortunately, the woman does not move in front of the monitor at any point of…this shot, so we can pick anywhere to begin.…I am going to go ahead and just for fun pick the end of the shot, just to give…you experience doing something slightly different.…
The After Effects Apprentice videos on lynda.com were created by Trish and Chris Meyer and are designed to be used on their own and as a companion to their book After Effects Apprentice. We are honored to host these tutorials in the lynda.com Online Training Library®.
- Understanding motion stabilization and keying
- Performing a track
- Applying tracking to effects
- Keying with KEYLIGHT
- Replacing images
- Improving the composite
- Garbage masking
- Dealing with interlaced footage