Chris & Trish Meyer
CMG Keyframes is a repository for columns, articles, and videos created by Trish & Chris Meyer of the subject of creating motion graphics using Adobe After Effects and other related programs. It also contains articles on typography, audio, and 3D, as well as links to relevant articles Chris & Trish have published elsewhere.
Trish & Chris Meyer are the founders of Crish Design (formerly known as CyberMotion), an award-winning motion graphic design studio that has recently relocated from Los Angeles to the Albuquerque area. Their design and animation work has appeared on shows and promos for CBS, NBC, ABC, Fox, HBO, PBS, and TLC; in opening titles for several movies including Cold Mountain and The Talented Mr. Ripley; at trade shows and press events for corporate clients ranging from Apple to Xerox; and in special venues encompassing IMAX, CircleVision, the NBC AstroVision sign in Times Square, and the four-block-long Fremont Street Experience in Las Vegas.
In addition to their motion graphics work, Trish and Chris were among the original users of After Effects, and have written numerous books including "Creating Motion Graphics with After Effects" and "After Effects Apprentice" (both published by Focal Press). They speak regularly at conferences around the country, and perform custom training for studios. Both have backgrounds as musicians, and a close relationship between sound and picture informs much of their work.
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Monday, April 05, 2010
Everything is relative; here’s how to relate between layer and comp space.
We’re in the process of serializing the Deeper Modes of Expression bonus chapter from our book Creating Motion Graphics with After Effects into a set of 12 posts here on PVC. As you work with Position values and expressions, you will run into the problem of what the Position value really means: Is it a position relative to the layer (such as an effect point), is it a position relative to a parent layer, or is it a position relative to the overall comp (sometimes referred to as “world space”)?
Fortunately, After Effects has a number of layer space transform methods designed to help you move between these different definitions of Position. These are described in the online Help (press F1 to open). Most are straightforward, but there are a few useful transformations that need some extra thought.
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