In-Betweening

In-Betweening

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In-betweening, also known as “tweening,” is a process used in animation that involves generating intermediate frames between two images to give the appearance of the first image evolving smoothly into the second image.

The process of in-betweening is used to create the illusion of motion in both traditional hand-drawn animation and computer animation. In hand-drawn animation, the lead animator will generally create the key frames — these are the frames that represent the start and end points of a smooth transition or movement. The in-betweener, often a less experienced animator, then creates the necessary frames in the middle that represent the transition from the start to the end point.

In computer animation, in-betweening can often be automated using software, which calculates the differences in shape and position between frames and then creates the necessary intermediate frames.

The term ‘tweening’ is also used in digital animation to refer to the process of creating intermediate frames between two keyframes to create the illusion of motion. Software can create motion tweens, shape tweens, or color tweens depending on the desired animation effect.

In all cases, the purpose of in-betweening is to create a smooth, seamless sequence of images that flow naturally when played at full speed. It’s a fundamental aspect of creating the illusion of movement and life in animation.

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