Join Alan Demafiles for an in-depth discussion in this video Track mattes, part of After Effects CC 2019 Essential Training: Editors and Post.
- [Instructor] While a mask allows you to control…what's shown or hidden on a particular layer,…After Effects also allows you to reference…another layer's transparency or pixel brightness…to control what is visible.…A layer that controls another layer's visibility…in this way is called a track matte,…and here in this movie, we'll explore how they work.…So in this first example, I have some numbers…that I have going up in space and Y,…and basically I want to create a counter of sorts.…Now, you'd think that maybe with our masking tools,…I might be able to cut out a certain portion…and have the rest of it kind of revealed,…so let's go ahead and select our layer one,…and come over here to our rectangle tool,…and just draw a little mask around that layer,…and when we preview it, you'll notice…that the mask is moving along with the layer,…not what I intended, I actually wanted…to keep my mask in place and just move the layers,…so that's kind of an important concept,…is that these masks are moving along…with whatever the layer is doing, so if I rotated it,…
Author
Released
2/6/2019- Linking Premiere Pro and After Effects dynamically
- Navigating timeline layers
- Working with keyframes
- Precomping elements
- Animating mask reveals and tracking masks
- Creating elements with shape layers
- Animating shapes and text
- Working with Illustrator files
- Animating a logo
- Creating 3D type extrusions
- Creating a simple camera in Z-space montage
- Keying video with Keylight
- Batch rendering and Dynamic Link rendering
Skill Level Beginner
Duration
Views
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Introduction
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Big-picture concepts2m 55s
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1. How After Effects Is Different from Premiere
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Working with keyframes10m 21s
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Precomping elements7m 4s
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Parenting to nulls6m 34s
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Introduction to 3D layers6m 24s
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2. Working with Masks and Shapes
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Masks6m 59s
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Animating mask reveals7m 29s
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Track mattes7m 42s
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Limiting effects with masks4m 36s
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Tracking masks5m 16s
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3. Working with Type and Logos
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Setting type7m 23s
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Animate type7m 33s
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Work with Illustrator files8m 25s
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Create 3D type extrusions6m 43s
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4. Working with Stills and Video
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Introducing z-depth5m 54s
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Key video with Keylight6m 3s
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5. Outputting Media
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Explore the Render Queue5m 29s
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Render footage with an alpha6m 15s
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6. Example Techniques
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Shape layer transitions6m 46s
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Create video glitches10m 5s
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7. Challenge: Put Your Skills into Practice
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Solution, part 11m 57s
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Solution, part 22m 24s
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Solution, part 32m 3s
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Conclusion
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Next steps24s
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Video: Track mattes