![]() ![]() Rigging is an animation technique where a 3D or 2D animated character is overlaid on a digitally-rendered internal bone structure. Once this is done, the animators will review these tweened frames and make any needed edits to improve the video animation. Today, our animators will simply draw the keyframes, and the motion animation software will automatically tween the required frames. Or, if they wanted to save resources, they would draw smear frames to create the illusion of motion without having to animate on-ones. For scenes that had complex motion, or where long distances were covered on screen, every single frame had to be animated (on-ones). ![]() This was a very labor-intensive process, so sometimes only every second or third frame was re-drawn (called animating on-twos and on-threes, respectively). This was called "inbetweening" - which has been shortened to just "tweening" today. ![]() With traditional animation, the main animation artists would draw the keyframes of a scene, and then the animation teams would have to draw each frame between these keyframes. Tweening is the process of automatically generating frames between two manually drawn frames (called keyframes). There are two main tools that we use to automatically animate objects in between frames: Instead, modern animation studios use animation software to automatically create and render their concept. Mixing frame by frame animation with other animation techniques However, most studios now only add in frame by frame edits when animation software can't render the scene they're envisioning. Each 'frame' is hand-drawn on a separate page, and then the pages are physically 'flipped' through to create the animation. Flipbook animation: The original animation.These photos are played sequentially to create movement. Stop motion animation: Anywhere from a few hundred to over 100,000 individual photos are taken of physical objects, with the object moving slightly every time.Rotoscope animation: This is essentially drawing over live action footage to get very realistic animations. ![]() This is usually done for the artistic effect it creates, and not the production quality of the animation. Today, there are still some independent studios and creators that exclusively animate frame by frame. In fact, Disney hasn't had a 100% frame by frame, hand drawn animation since 2009. Since it's such a pain-staking process, and since animations can be created using software now (as we'll cover next), videos fully animated frame by frame are much less common these days. Every frame is drawn slightly differently from the previous one, and when played together create the impression of movement. Frame by frame animation is a traditional animation technique where every single frame is drawn individually by an artist. ![]()
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