Lesson 07 - Expressions and Time Games
FALL 2011 and SPRING 2014 - part of the Final Exam study guide.

  1. (HANDOUT you have):Textbook Readings on the TIME REMAPPING: TimeRemap.PDF was a handout in class. We also did this two different days in class.

  2. Going for a Loop - pages 176-177 of Lesson 07. loopOut("pingpong"), loopOut("cycle") and loopOut("offset"). Which one of these three was used earlier in modeling a flying 3D bird and its wings flapping up and down? The "pingpong" approach might work best for warming the hands around the fire animation of the UNI Interlude dance to Attack Attack.

    For loopOut(), the last KF (KeyFrame) on the layer with the loopOut() expression must be BEFORE the very lat frame on the timeline. Why? Think about why it would make no sense otherwise.

    SPRING 2014: Looping video tutorial from lynda.uni.edu After Effects Apprentice 09: Expressions with Chris Meyer and Trish Meyer. 7 minutes 55 seconds. Good review of how to get the bird's wings to LOOP repeatedly simulating flying.

  3. 14-Time Remap*Started example from Lesson 07. Don't cry over spilled milk.
    Layer menu > Time > Enable Time Remapping command. What does it do?

    How can you make time footage go in reverse using TIME REMAPPING? Suppose we wanted to have frame 91 to frame 150 play and then go in reverse playing frame 150, 149, 148, 147, ... to frame 93, 92, 91. How would you do that? Recall the milk example from page 187 of the textbook.

    How can you speed up or slow down footage?

    What is the best way to Insert a new KF (Keyframe) into a layers Time Remap property?

    "In After Effects, you can keyframe almost anything - including time itself. The door to this world is Time Remapping. This parameter allows you to define which frame of a source should be playing at a specific frame of your comp. After Effects will the speed up or slow dow the footage as needed between keyframes to make this happen."

  4. Creative Cow tutorial on time remapping: Time_Remapping CC tutorial.

  5. You Tube tutorial: Time Remap - Time > Enable Time Remapping skateboard adventures. 6 minutes long tutorial for beginners.