Customizing a motion path – Animating a Multimedia Presentation

The balloon moves through the scene, but its path isn’t very interesting, and it isn’t onscreen long. You’ll customize the path between its start point and end point. You can use the values we used or create your own path, as long as the balloon stays fully visible on the screen until a little after 11 seconds, and then slowly makes its way offscreen.

  1. Go to 3:00.
  2. Drag the balloon straight up so that the character and the basket are fully visible, and then rotate it slightly to the left. (We used Position 952.5, 402.2; Rotation –11.1 degrees.)
  1. Go to 6:16.
  2. Shift the balloon’s rotation the other direction. (We used 9.9 degrees.)
  3. Move the balloon to the left side of the scene. (We used Position 531.7, 404.)
  4. Go to 7:20.
  5. Change the scale to 39.4%.
  6. Set additional Rotation keyframes to create swirling motions. If you’re using our values, do the following:

Tip

You can change settings in the Properties panel or the Timeline panel; in this exercise, it’s more efficient to set Rotation keyframes in the Timeline panel.
• At 8:23, change the Rotation value to –6.1.
• At 9:16, change the Rotation value to 22.1.
• At 10:16, change the Rotation value to –18.3.
• At 11:24, change the Rotation value to 11.9.
• At 14:19, change the Rotation value to –8.1.

  1. Set additional Position keyframes to move the balloon. If you’re using our values, do the following:
    • At 9:04, change the Position to 726.5, 356.2.
    • At 10:12, change the Position to 1396.7, 537.1.
  2. Press the spacebar to preview the balloon’s current path, and then press the spacebar again to stop the preview. Save your work so far.

Using Bezier handles to smooth a motion path

The basic path is in place, but you can smooth it out a bit. Each keyframe includes Bezier handles that you can adjust to change the angle of the curve. You’ll learn more about Bezier curves in Lesson 7.

  1. Choose 50% from the Magnification Ratio pop-up menu in the Composition panel.
  2. Make sure the Balloon/Balloon.ai layer is selected in the Timeline panel. Then move the current-time indicator to a position where you can clearly see the motion path in the Composition panel. (Between 4 and 6 seconds is probably good.)
  3. Click a keyframe point in the Composition panel to reveal its Bezier handles, if they aren’t already shown.

Note

If Bezier handles don’t appear when you click with the Selection tool, use the Convert Vertex tool (hidden behind the Pen tool) to display them.

4.Drag a Bezier handle to change the curve for that keyframe.

5.Continue to drag Bezier handles for the keyframe points until you achieve the path you want. Our final path is shown below in the image on the right.

6.Preview the balloon on the path by moving the current-time indicator across the time ruler. Make any adjustments you want. You can also make adjustments later, after you’ve animated the canvas and sky.

7.Hide the properties for the Balloon layer in the Timeline panel, and save your work so far.

Copying layers into a composition – Animating a Multimedia Presentation

You’ve worked with the balloon, character, and fire layers in the Balloon composition. Now, you’ll copy those layers into the Balloon Scene composition.

  1. In the Balloon Timeline panel, select the Canvas layer and then Shift-click the Upper arm layer to select all the layers in the composition.

Note

Make sure to select the Canvas layer first and then Shift-click the Upper arm layer to copy layers in their original order.

2.Press Ctrl+C (Windows) or Command+C (macOS) to copy all the layers.

3.Switch to the Balloon Scene Timeline panel.

4.Press Ctrl+V (Windows) or Command+V (macOS) to paste the layers.

5.Click an empty area in the Timeline panel to deselect all layers.

The layers appear in the same order they were when you copied them, and they retain all the properties they had in the Balloon composition, including parenting relationships.

Placing initial keyframes

The balloon will enter the scene from the bottom, drift through the sky, and eventually depart from the upper right corner of the frame. You’ll keyframe the balloon’s starting and ending points first.

  1. Select the Balloon/Balloon.ai layer in the Timeline panel.
  2. In the Properties panel, change the Scale property to 60%.

The balloon and all of its child layers scale to 60%.

3.Choose 12.5% or 25% from the Magnification Ratio pop-up menu in the Composition panel so that you can see the pasteboard around the composition.

4.In the Composition panel, drag the balloon and its child layers offscreen, below the scene. (We used Position values 844.5, 2250.2.)

5.Drag the Rotation value to rotate the balloon so it tilts to the right. (We used 19 degrees.)

6.Click the stopwatch icons (Stopwatch icon) for the Position, Scale, and Rotation properties to create initial keyframes.

7.Go to 14:20 and scale the balloon to about one-third its original size. We used 39.4%.

8.Drag the balloon off the upper right corner of the frame, tilted slightly to the left. We used the following values: Position 2976.5, –186; Rotation –8.1 degrees.

9.Move the current-time indicator across the timeline to see the animation so far.

Precomposing layers – Animating a Multimedia Presentation

As you’ve seen in previous lessons, sometimes it’s easier to work with a set of layers. Precomposing layers moves them to a new composition, nested inside the original composition. You’ll precompose the canvas layers so that you can work with them separately when you animate them sailing off the balloon.

  1. In the Balloon Timeline panel, Shift-click the Green Canvas and Yellow Canvas layers to select all four canvas layers.
  2. Choose Layer > Pre-compose.
  3. In the Pre-compose dialog box, name the composition Canvas, select Move All Attributes Into The New Composition, and click OK.

The four layers you selected in the Timeline panel are replaced by a single Canvas composition layer.

4.Double-click the Canvas layer in the Timeline panel to edit the composition.

5.Choose Composition > Composition Settings.

6.In the Composition Settings dialog box, deselect Lock Aspect Ratio, change the Width value to 5000 px, and click OK.

7.Shift-select all four layers in the Timeline panel, and then drag them to the far left side of the Composition panel. You may need to change the magnification.

Increasing the width of the composition and then moving the canvas to the far left side will give you room to animate the canvas layers later.

8.Switch to the Balloon Timeline panel.

You moved the canvas to the far left side of the Canvas composition, revealing the uncovered balloon in the Balloon composition. At the beginning of the animation, though, the canvas should be on the balloon. You’ll reposition the Canvas layer.

9.Choose Fit from the Magnification Ratio pop-up menu in the Composition panel so you can see the full balloon.

10.Select the Canvas layer in the Timeline panel, and then drag the layer so that it covers the bare balloon in the Composition panel.

11.In the Parent column of the Canvas layer, choose 5. Balloon from the pop-up menu so that the canvas will follow the balloon.

    Keyframing a motion path

    Now that all the initial pieces are set up, you’re ready to animate the balloon and the character using position and rotation keyframes.

    Adjusting anchor points – Animating a Multimedia Presentation

    The anchor point is the point around which transformations, such as scaling or rotation, are performed. By default, a layer’s anchor point is at the center of the layer.

    You’ll change the anchor points for the character’s arm and head so that you can better control the character’s movements as he tugs on the cord to ignite the fire and as he looks up and down.

    1. Double-click the Balloon composition in the Project panel to open it in the Composition panel and the Timeline panel.

    The Balloon composition includes layers for the canvas colors, the balloon itself, and the character’s eyes, head, forearm, and upper arm.

    2.Zoom in using the Magnification Ratio pop-up menu at the bottom of the Composition panel so you can see the balloon’s detail more clearly.

    3.Select the Hand tool (Hand tool icon) in the Tools panel, and then pan so that the character is centered in the Composition panel.

    4.Select the Selection tool (Selection tool icon) in the Tools panel.

    5.Select the Upper arm layer in the Timeline panel.

    6.Select the Pan Behind tool (Pan Behind tool icon) in the Tools panel (or press Y to activate it).

    With the Pan Behind tool, you can move the anchor point without moving the entire layer in the Composition window.

    7.Move the anchor point to the character’s shoulder.

    8.Select the Forearm layer in the Timeline panel, and then move its anchor point to the elbow.

    9.Select the Head layer in the Timeline panel, and move its anchor point to the character’s neck.

    10.Select the Selection tool in the Tools panel.

    11.Choose File > Save to save your work so far.

      Parenting layers

      This composition includes several layers that need to move together. For example, as the balloon floats, the character’s arm and head should move along with it. As you’ve seen in previous lessons, a parenting relationship synchronizes changes in the parent layer with corresponding changes in the child layer. You’ll establish parenting relationships among the layers in this composition, and you’ll add the fire video as well.

      1. Deselect all layers in the Timeline panel, and then press Ctrl (Windows) or Command (macOS) as you select the Head and Upper arm layers.
      2. In the Parent column for either of the selected layers, choose 7. Balloon from the pop-up menu.

      This establishes both the Head and Upper arm layers as child layers of the Balloon layer. When the Balloon layer moves, the other two layers will move with it.

      The eyes not only need to move with the balloon, they need to move with the head, so you’ll create that parenting relationship next.

      3.In the Parent column for the Eyes layer, choose 6. Head from the pop-up menu.

      The forearm should move with the upper arm as well.

      4.In the Parent column for the Forearm layer, choose 9. Upper arm from the pop-up menu.

      Now you need to ensure that the fire video travels with the balloon.

      5.Drag the Fire.mov file from the Project panel to the Timeline panel, positioning it directly below the canvas layers so that the fire will appear to go inside the balloon, rather than outside it. (The Fire layer should be between the Yellow Canvas layer and the Eyes layer.)

      The fire video is positioned in the center of the composition, so you’ll need to zoom out a bit to see it.

      1. Choose 25% from the Magnification Ratio pop-up menu so that you can see the outline of the selected video.
      2. In the Composition window, drag the fire video over the burner. To see the flame in action so you can position it correctly, drag the current-time marker across the first second of the time ruler.
      3. When you’re satisfied with the Fire layer’s position, choose 8. Balloon from the pop-up menu in the Fire layer’s Parent column.

      9.Choose File > Save to save your work so far.

      Importing the footage – Animating a Multimedia Presentation

      Next, you’ll import the footage you need for the project, including the balloon.ai composition.

      1. Double-click an empty area of the Project panel to open the Import File dialog box.
      2. Navigate to the Lessons/Lesson05/Assets folder on your hard disk, and select the Sky.ai file.
      3. Choose Footage from the Import As menu, and then click Import or Open.
      4. In the Sky.ai dialog box, make sure Merged Layers is selected, and then click OK.

      5.Double-click an empty area of the Project panel, navigate to the Lessons/Lesson05 /Assets folder, and select the Balloon.ai file.

      6.Choose Composition – Retain Layer Sizes from the Import As menu, and click Import or Open.

      7.Press Ctrl+I (Windows) or Command+I (macOS) to open the Import File dialog box again.

      Using Creative Cloud Libraries in After Effects

      Easily access images, videos, colors, and other assets you’ve created in After Effects and other Adobe applications. Through Creative Cloud Libraries, you can also use Looks, shapes, and other assets you create with Adobe Capture and other mobile apps. Creative Cloud Libraries also make it easy to access After Effects motion graphic templates in Adobe Premiere Pro.

      Even Adobe Stock images and videos are available in the Libraries panel: Search and browse assets within the panel, download watermarked versions to see how they work with your projects, and license the ones you want to keep—all without leaving After Effects.

      The same search bar you use to search Adobe Stock makes it easier to find specific items in your Creative Cloud Libraries, too.

      To learn more about all the ways you can use Creative Cloud Libraries, see After Effects Help.

      8.Navigate to the Lessons/Lesson05/Assets folder, and select the Fire.mov file.

      9.Make sure Footage is chosen in the Import As menu, and click Import or Open.

      Creating the composition

      You’ll create the composition and add the sky.

      1. Click New Composition in the Composition panel.
      2. In the Composition Settings dialog box, do the following:

      Note

      If you change Pixel Aspect Ratio or Width settings, the Preset name may change to Custom in the Composition Settings panel.

      • Name the composition Balloon Scene.
      • Choose HD ♦ 1920×1080 ♦ 25fps from the Preset menu.
      • Make sure Square Pixels is chosen from the Pixel Aspect Ratio menu.
      • Make sure the Width is 1920 px and Height is 1080 px.
      • Choose Quarter for the Resolution.
      • Set Duration to 20 seconds (20:00).
      • Click OK.

        3.Drag the Sky.ai footage item from the Project panel into the Timeline panel.

        The balloon will float across the Sky.ai image. The far right of the image contains the canvas-wrapped clouds that appear at the end of the scene. The wrapped clouds shouldn’t be visible earlier in the movie.

        4.In the Composition panel, drag the Sky layer so that its lower left corner is even with the lower left corner of the composition.