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Reviewing motion tweens

From: Flash CS4 Professional Tools for Character Animation

Video: Reviewing motion tweens

In this chapter we are going to look at motion tweens at a more advanced level than what we did in the Essential Training title. We will start off by simply reviewing how motion tweens work. If you are following along you can open up Review_Motion_Tween.fla from the Chapter 01 folder. You can also just create a movie clip on the Stage. You can create a motion tween using a symbol by right-clicking or Ctrl-clicking the frame where the symbol is in the Timeline. So I am going to right-click in the animation layer, I am going to choose Create Motion Tween, and by the way you may have noticed Create Classic Tween as an option here.

Reviewing motion tweens

In this chapter we are going to look at motion tweens at a more advanced level than what we did in the Essential Training title. We will start off by simply reviewing how motion tweens work. If you are following along you can open up Review_Motion_Tween.fla from the Chapter 01 folder. You can also just create a movie clip on the Stage. You can create a motion tween using a symbol by right-clicking or Ctrl-clicking the frame where the symbol is in the Timeline. So I am going to right-click in the animation layer, I am going to choose Create Motion Tween, and by the way you may have noticed Create Classic Tween as an option here.

Classic tweens represent the older versions of motion tweens, so that the motion tween of Flash CS3 and previous versions of Flash are now called classic tweens. So they are still there in case you ever want to use them. Notice that Flash automatically extends the Timeline for one second of animation. So I now have 18 frames. So now if I want to animate properties, I can go to frame one and adjust any properties I want to animate. So let's say I am going to make the monster move from where it is now, down to the bottom of the Stage. So I am going to go to the frame one and then I am going to push Down on my keyboard and then I am going to push Up on my keyboard.

So what that did is it moved the monster down one pixel and back up one pixel which doesn't really do anything visually but what it does is by adjusting the property on a particular frame in a motion tween we are telling Flash to memorize that property value. So by adjusting the Y position of the monster we had the Flash memorize that position and make what's called a Property Keyframe. So remember a keyframe is a place where you tell Flash exactly how you want something to look in a particular frame and now what I will do is I will scroll to the last frame and then I will move the monster straight down by holding Shift on my keyboard and using the Down arrow. The reason why I am using my keyboard instead of clicking and dragging is so I don't accidentally move the monster a little bit to the right or to the left; if I go to the playhead we can preview the animation.

So Flash has created a motion tween and then if you look at the purple line that I have here, Flash created a motion path. Remember that if you click and drag that line or you move around anchor points in it, the Flash will modify the motion path. I am going to undo the change that I just made by pressing Command+Z on the Mac or Ctrl+Z on the PC. So there is a symbol motion tween. So what I have to do to create a motion tween is right-click or Ctrl-click where your symbol is that you want to animate and then choose Create Motion Tween. From there all you need to do is modify the properties that you want to animate at the beginning and ending frames of your animation.

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Flash CS4 Professional Tools for Character Animation

38 video lessons · 24453 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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