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Creating bounce

From: Flash CS4 Professional Tools for Character Animation

Video: Creating bounce

In this movie we will use animation curves to create a bounce animation for this monster's body. If you are following along, you can open up Creating_Bounce.fla from the Chapter 3 folder or you can just have a movie clip on the Stage. On the Stage I will dive into the Spider movie clip and then I am going to lock all the layers except for the Body layer. The Body layer is already a movie clip, it's an instance of a movie clip called Body. What I am going to do is create a motion tween. So I will right-click or Ctrl-click the body on the Stage and choose Create Motion Tween and I am going to move the body up just a little bit using my keyboard and then what I am going to do is go to the last frame here and on the last frame, which is frame 12, I am going press Down on my keyboard to move the body down a little bit.

Creating bounce

In this movie we will use animation curves to create a bounce animation for this monster's body. If you are following along, you can open up Creating_Bounce.fla from the Chapter 3 folder or you can just have a movie clip on the Stage. On the Stage I will dive into the Spider movie clip and then I am going to lock all the layers except for the Body layer. The Body layer is already a movie clip, it's an instance of a movie clip called Body. What I am going to do is create a motion tween. So I will right-click or Ctrl-click the body on the Stage and choose Create Motion Tween and I am going to move the body up just a little bit using my keyboard and then what I am going to do is go to the last frame here and on the last frame, which is frame 12, I am going press Down on my keyboard to move the body down a little bit.

Now I don't want to do a really drastic animation, I want to do something simple. I just want to look like the monster's body is being affected by a walking. So it's going to bounce up and down a little bit. So I will select the body animation then I will jump over to Motion Editor. Now I am going to create a custom easing curve that's going to loop a little bit. So it's going to start at 0% and end at 0% and in between it going to go up and down. So I am going to scroll all the way to the bottom in the Motion Editor and add a new custom Ease and I will expand my custom Ease and scroll down so I can see it all the way. I am just going to expand the Motion Editor a little bit and then I will select the last box in the custom Ease, click and drag that all the way to the bottom and then what I will do is add some control points to this animation.

So I will put 1 at frame 4, so then Command-click on frame 4 and drag that all the way to 100. Then I will put 1 at frame 6, so I will Command-click at frame 6 and drag that 1 down to about 50. It doesn't matter if it's exactly at 50. Then I will create another one at frame 9. So I am going to Command-click at frame 9, Ctrl-click on the PC, I will click and drag the control point up to about 85%. Again, we are not looking for an exact amount here. I just want it to be random when it's applied so that the monster will bounce up and down.

So with my custom Ease in place, I am going to scroll up and apply the custom Ease to my Basic Motion and then I will test the movie and watch monster bounce up and down as it moves, Command+Return on the Mac, Ctrl+Enter on the PC. There is our bouncing monster animation. So remember that when you are creating your custom animation curves, you don't have to be limited to a specific type of curve but you can get creative to create cool, natural feeling animations.

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This video is part of

Image for Flash CS4 Professional Tools for Character Animation
Flash CS4 Professional Tools for Character Animation

38 video lessons · 24469 viewers

Todd Perkins
Author

 
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  1. 2m 44s
    1. Welcome
      42s
    2. Using the example files
      46s
    3. Getting into this course
      1m 16s
  2. 39m 5s
    1. Reviewing motion tweens
      2m 32s
    2. Adjusting motion tweens in the Property Inspector
      3m 55s
    3. Working property keyframes
      5m 18s
    4. Controlling easing in the Motion Editor
      3m 28s
    5. Creating custom easing in the Motion Editor
      4m 36s
    6. Squashing and stretching with custom easing
      5m 33s
    7. Adding shadows
      2m 6s
    8. Encapsulating animations
      2m 39s
    9. Randomizing animations with graphic symbols
      2m 16s
    10. Stretching animations
      1m 31s
    11. Saving for previous versions of Flash
      1m 50s
    12. Converting animations to ActionScript code
      3m 21s
  3. 19m 43s
    1. Adding a perspective shadow
      3m 40s
    2. Nesting animations
      4m 26s
    3. Syncing audio
      4m 8s
    4. Adding 3D rotation
      5m 38s
    5. Using 3D layers
      1m 51s
  4. 17m 9s
    1. Animating a bone system
      3m 22s
    2. Adding easing to an armature animation
      1m 39s
    3. Creating complex armature animations
      2m 25s
    4. Creating bounce
      2m 53s
    5. Adding bones to shapes
      3m 19s
    6. Adding 3D animation to a spider
      2m 19s
    7. Creating interactive bones
      1m 12s
  5. 19m 2s
    1. Animating masks
      4m 3s
    2. Animating masked content
      5m 7s
    3. Creating shadows with masks
      4m 29s
    4. Creating an iris effect using masks
      5m 23s
  6. 7m 30s
    1. Saving motion presets
      1m 43s
    2. Exporting and importing motion presets
      3m 19s
    3. Applying and adjusting motion presets
      2m 28s
  7. 11m 40s
    1. Understanding walk cycles
      2m 45s
    2. Creating a walk cycle
      5m 16s
    3. Adding body movement
      3m 39s
  8. 19s
    1. Goodbye
      19s

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