Animator drawing frames between keyframes—supporting role, essential for smooth motion. Entry level in animation and VFX.
In the classic animation process, the inbetweener sits between the creative decisions: While the animator defines the key poses—called keyframes—the inbetweener draws all the intermediate stages in between. Their task sounds mechanical but is technically demanding. The quality of movement in an entire scene stands or falls with the precision of these intermediate frames.
In practice, this means: The lead animator sketches a character, for example, in position A (arm up) and position C (arm down). The inbetweener then draws position B—the logical middle path in between. But not simply linearly. It's about timing, weight, acceleration. An arm doesn't fall uniformly—it accelerates in the first half, decelerates in the second. The inbetweener must intuitively understand these curves, otherwise the movement will appear robotic or shaky. In modern digital workflows, studios use inbetweening software that interpolates keyframes—but especially with character animation, manual revisions are often still necessary. An algorithm doesn't see that the shoulder needs to follow or that the hand needs a subtle swing.
Hierarchically, the inbetweener sits at the lowest level of an animation team. There's a reason for this: the work is repetitive but not creatively defining. At the same time, it is absolutely indispensable—without inbetweening, there is no fluid animation. Good studios recognize this and use this position as a training ramp. Those who have understood how a movement truly works can later set keyframes themselves. Many well-known animators started as inbetweeners.
In the context of VFX and visual effects, the term has shifted slightly: here, it's often about blending between photorealistic keyframes—for example, with motion capture data or when interpolating object movements. Software like Maya or MotionBuilder automates much of this, but artistic control remains with the animator who refines the curves. The inbetweening process itself is digital, but the conceptual role—making the movement readable and believable—has remained the same.