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After Effects CS6 Essential Training
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Trimming and sliding edits


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After Effects CS6 Essential Training

with Ian Robinson

Video: Trimming and sliding edits

Now in this video, we're going to time the appearance of our graphics to the beat of some audio, and if you look at Layer 8 you can see we've already added some markers to the audio. We did that in the previous video. Now to start trimming and sliding our layers, let's look at how many elements we have that we need to animate. So we have six and a background layer. So we have six markers here. So let's go ahead and just move to start of all these layers to the start of the different markers.
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  1. 1m 8s
    1. What is After Effects?
      1m 8s
  2. 2m 53s
    1. Welcome
      1m 40s
    2. Using the exercise files
      1m 13s
  3. 1h 8m
    1. The six foundations of AE
      5m 3s
    2. Introducing the interface and the workspace
      7m 51s
    3. Understanding compositions
      8m 48s
    4. Getting comfortable with layers
      7m 33s
    5. Getting started with animation and keyframes
      8m 30s
    6. Understanding effects
      3m 26s
    7. Moving in 3D space
      7m 41s
    8. Rendering your first animation
      8m 20s
    9. Specifying preferences and cache settings
      5m 44s
    10. Staying organized
      5m 15s
  4. 38m 6s
    1. Creating compositions
      7m 19s
    2. Importing footage and compositions
      7m 54s
    3. Preparing compositions for animation
      8m 7s
    4. Introducing renderers
      3m 15s
    5. Understanding precomposing
      7m 16s
    6. Relinking missing footage
      4m 15s
  5. 59m 58s
    1. Defining layers
      6m 23s
    2. Creating type
      5m 58s
    3. Creating layer solids and shapes with masks
      7m 55s
    4. Building shape layers
      6m 17s
    5. Understanding switches and blend modes
      8m 26s
    6. Crafting custom shapes and masks
      6m 18s
    7. Creating variable-width feathered masks
      5m 1s
    8. Rotoscoping with the Roto Brush
      8m 20s
    9. Refining with the Roto Brush
      5m 20s
  6. 1h 8m
    1. Understanding keyframes
      6m 1s
    2. Adding and adjusting keyframes
      9m 54s
    3. Interpolating keyframes
      8m 5s
    4. Adjusting keyframes in the Graph Editor
      7m 17s
    5. Understanding positional keyframes
      7m 0s
    6. Controlling animation with parenting and the pick whip
      9m 57s
    7. Understanding animation paths
      6m 27s
    8. Timing to audio
      4m 41s
    9. Trimming and sliding edits
      5m 31s
    10. Swapping images
      4m 1s
  7. 29m 7s
    1. Layering multiple effects
      9m 13s
    2. Generating graphic effects with adjustment layers
      7m 28s
    3. Building backgrounds with effects
      6m 50s
    4. Creating animated strokes
      5m 36s
  8. 40m 15s
    1. Introducing cameras
      10m 3s
    2. Working with 3D layers
      6m 37s
    3. Positioning layers
      6m 13s
    4. Adding lights and working with Material Options
      9m 21s
    5. Using 3D precompositions
      2m 5s
    6. Adjusting depth of field
      5m 56s
  9. 28m 31s
    1. Caching and prerendering
      6m 33s
    2. Understanding the alpha channels
      5m 18s
    3. Using the Render Queue
      4m 34s
    4. Rendering with Adobe Media Encoder
      7m 15s
    5. Archiving finished projects
      4m 51s
  10. 44m 27s
    1. Creating type animators
      12m 16s
    2. Animating type in 3D space
      6m 35s
    3. Adding and animating type on a path
      8m 45s
    4. Composing 3D type
      8m 41s
    5. Animating shape layers
      8m 10s
  11. 32m 45s
    1. Creating stylized video
      6m 47s
    2. Retiming video footage
      9m 31s
    3. Retouching with the Rubber Stamp tool
      10m 19s
    4. Smoothing shaky camera footage
      6m 8s
  12. 14m 19s
    1. Understanding keying
      3m 19s
    2. Creating a garbage mask
      4m 27s
    3. Getting started with Keylight
      6m 33s
  13. 15m 56s
    1. Importing Photoshop documents
      6m 11s
    2. Importing Illustrator files
      4m 24s
    3. Working With Premiere Pro projects
      5m 21s
  14. 1h 15m
    1. Adjusting ray-tracing quality
      8m 19s
    2. Tracking footage
      8m 15s
    3. Extruding shapes
      8m 39s
    4. Bending layers
      8m 38s
    5. Adjusting ray-traced lighting and materials
      9m 22s
    6. Adding environment maps
      4m 58s
    7. Beginning compositing
      8m 52s
    8. Creating render passes
      10m 17s
    9. Building a final composite
      8m 14s
  15. 1m 8s
    1. What's next
      1m 8s

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After Effects CS6 Essential Training
8h 41m Beginner May 07, 2012

Viewers: in countries Watching now:

In this course, author Ian Robinson introduces Adobe After Effects CS6 and the world of animation, effects, and compositing. Chapter 1 introduces the six foundations of After Effects, which include concepts like layers, keyframes, rendering, and moving in 3D space. The rest of the course expands on these ideas, and shows how to build compositions with layers, perform rotoscoping, animate your composition with keyframes, add effects and transitions, and render and export the finished piece. Two real-world example projects demonstrate keying green screen footage and creating an advanced 3D composition with the expanded 3D toolset, an important addition to CS6.

Topics include:
  • Setting up the workspace, important preferences, and the cache
  • Importing footage and comps
  • Relinking missing footage
  • Creating type, shape layers, and masks
  • Rotoscoping with the Roto Brush
  • Adjusting keyframes in the Graph Editor
  • Timing animations to audio
  • Building backgrounds with effects
  • Rendering with the Render Queue and Adobe Media Encoder
  • Animating 3D type
  • Smoothing shaky footage and retouching footage
  • Keying green screen footage
  • Working with 3D: extruding shapes, adding ray-traced lighting, and more
Subject:
Video
Software:
After Effects
Author:
Ian Robinson

Trimming and sliding edits

Now in this video, we're going to time the appearance of our graphics to the beat of some audio, and if you look at Layer 8 you can see we've already added some markers to the audio. We did that in the previous video. Now to start trimming and sliding our layers, let's look at how many elements we have that we need to animate. So we have six and a background layer. So we have six markers here. So let's go ahead and just move to start of all these layers to the start of the different markers.

In order to do that, I'm going to click and drag in this number area of my timeline. As I drag, my current-time indicator is going to move, and then if I hold shift it will snap to each one of these markers. So let's start at the first marker. We're going to select one through six. This is our Background layer so we don't need to change the animation for that. All right, to slide layers back in the timeline, you want to use the bracket key. So if you look at the P key on your keyboard, the key just to the right of that is the left bracket key.

So think of that just like a frame. It's holding in the left side of that layer. So when you press it, notice now the left side of the layer has moved to that specific current-time indicator. All right, now we'll click and drag and hold down Shift, so our current time indicator snaps to the start of the next layer. This time we will hold down Command on the Mac or Ctrl on the PC and just deselect Layer 1, and we can left the bracket again to trim the start point of Layer 2.

And let's just repeat the series of commands as we move down the timeline. I'm holding Shift as I drag. I'm holding Command, or Ctrl on the PC, as I deselect a layer and then I'm just pressing left bracket to trim the start point of the following layer. We'll just keep repeating this really quickly, and then I will jump back in with some more thoughts. Okay now if we press the Home key we can move our current-time indicator to the start of our comp and press zero to load up our RAM preview.

(Video Playing) Okay so as you can see, it gets really busy as the different elements are popping into the scene. So what we need to focus on now is actually re-timing some of the elements by sliding them in the timeline, and then trimming the out points of the layers so these elements don't all pile on top of each other. So to get started, let's look at the beginning of our animation which is terribly empty.

So we can start with this 3D Text layer. Just select Layer 2 and press the Left bracket key to slide it to the front. Now to preview, rather than using RAM, I'm just going to click and drag with my current-time indicator. This works well because the word wind pops-up and then energy pops in right after that. So that's great. Now when wind animates away, I want energy to disappear. So I'm going to move my current time indicator just a little bit past the end of our 3D layer here.

Select Layer 1 and press Option+Right Bracket. When you hold down the Option key, that tells After Effects that you're going to trim that layer rather than slide that layer. So it's Option on the Mac, Alt on Windows. Now if we move down the timeline, notice we have our logo pop in. Well that's kind of cool but I want the logo to reveal last. So let's move down the timeline, and let's have our logo actually appear somewhere around 3:20.

I don't want it to be right here at the end just because that's just before the end of our animation. Now we can select Layer 3 and just press the left bracket and we've slid that layer down. Let's go to about three seconds. I'm choosing that number because when I select Layer 4, I want my out point to be there. So let's select Layer 4 and just press Option+Right Bracket to trim the out point. Now I want this next layer to pop in shortly thereafter. So I'm going to left bracket to slide that layer forwards.

And then when we get to this next marker, I want this Green layer to disappear. So as I dragged in the timeline I held Shift, so my current-time indicator would snap to the marker, and now we can press Option+Right Bracket to trim. Okay now there's one last layer we need to have up here, and it's Layer 6. So let's select Layer 6 and press the left bracket to slide it and you guessed it, we'll move down the timeline and Option+Right Bracket to trim it's out point. Now if we press the Home key, we can go ahead and press zero and preview our animation.

(Video Playing) So as you can see, we have definitely created more interest in our animation just by trimming and sliding the layers. Now If I were going to keep continuing to push this animation, I'd focus on adding some effects to that background layer so we can pop or text off of the background and we'll focus on doing some of that in the next chapter.

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