From the course: Animation Foundations: Fundamentals
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Slow in and slow out
From the course: Animation Foundations: Fundamentals
Slow in and slow out
When animating objects we usually want to move them naturally. When there's a change in speed or direction it is because of a force acting on the object. This force will cause the object to accelerate and decelerate because of Newton's laws of motion. Consider an object that is stationary. When a force is applied to the object it accelerates. To put it more simply, the object goes from stationary to slow, to faster and faster still. In animation terms this is called a slow-in because the object goes into the motion slowly. When objects decelerate they slow to a stop for the same reasons they accelerate. They're presented with an opposing force that slows the motion in the opposite direction, often to a stop. In animation terms this is known as a slow-out because the object comes out of its motion slowly. We've seen slow-in and slow-out before as animation curves. You can see that as the curve changes during the slow-in, the objects accelerate. Constant speed is a straight line…
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