Join Chris Meyer for an in-depth discussion in this video Precomps and effects, part of After Effects Apprentice 08: Nesting and Precomposing.
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Trish Meyer: In this movie, let's finish off our animation by adding the distortion…effects such as Warp.…Remember in the previous movie, we took our three layers and pre-composed them…into the apple group pre-comp.…I can still edit or animate any of these layers individually if I need to, but I…can also apply effects to the group, which is what we were looking for.…Now it's worth pointing out that when I pre-composed and I created this pre-comp,…how did it know what size to make the pre-comp?…If I open Composition Settings, you'll see it has all the specifications of the DV comp.…
29.97 frame rate, it's five seconds in duration, and it has a blue background.…All of these specifications came from the main comp.…If we check its specifications, it has exactly the same Composition Settings.…And the reason it needs to do that is because some of the attributes that…you pre-composed such as the layer's position are based on the width and…height of the comp.…And the reason the duration has to be the same is that other attributes such as…
The After Effects Apprentice series was created by Trish and Chris Meyer. These tutorials are designed for After Effects CS4 through CC, and can be used on their own or as a companion to the Meyer's book, After Effects Apprentice.
- Grouping layers by nesting and precomposing
- Identifying and solving render order issues
- Navigating composition hierarchies
- Editing a precomp while viewing the result in another composition
- Preserving the frame rate of a nested composition