Lesson 9. Speed Changes and Optical Flow
Lesson Files
Motion5_Book_Files > Lessons > Lesson_9
Media
Motion5_Book_Files > Media > Retiming
Time
This lesson takes approximately 30 minutes to complete.
Goals
Speed up and slow down a video clip
Apply optical flow frame blending
Use keyframes to create a variable speed ramp
Apply, trim, and combine Retiming behaviors
Use and modify Time filters
It’s rare to see a title sequence or an advertisement where the video hasn’t been sped up, slowed down, or both: A car races toward the camera and suddenly slows to a freeze before it passes by; a skateboarder flies off the edge of a ramp and freezes at his apex; a new laptop spins around in a blur, slows down suddenly so that it’s barely moving, and speeds ...
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