Join Chris Meyer for an in-depth discussion in this video Frame blending, part of After Effects Apprentice 04: Layer Control.
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We've imported an image sequence and we've changed the frame rate of that…sequence to be slower, five frames per second, than the frame rate of the…composition we put it into, which is at 29.97 frames per second.…So how does After Effects make up the difference between those two frame rates? Well, it's simple.…It just has to repeat or skip frames of the source in order to make it fit the…frame rate of the composition.…As I press Page Down and step one frame at a time through the composition,…you'll see the frames of the source are being repeated.…
That's because it's playing back at a slower speed than our comp is being sampled.…As I do this you will even see we only get these green RAM preview cache bars…where they're unique frames of source material to play.…I am going to delete or fade up that we played around with earlier, stretch out…the work area to take up more of the resource, and press 0 on the numeric keypad…to RAM preview this.…You see the result is fairly jerky motion rather than smooth motion.…
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®.
- Sliding and trimming
- Slip-editing and insert-editing layers
- Employing blending modes to enhance layers and composites
- Applying, modifying, and saving animation presets and layer styles
- Using adjustment layers to affect multiple layers
- Experimenting with effects using Brainstorm
- Understanding pixel aspect ratios