In-betweening, also known as tweening, is a key process in animation that involves generating intermediate frames between two images to give the appearance of the first image evolving smoothly into the second one. This technique helps create the illusion of motion and change. It can be done manually by artists or automatically by computer software, especially in digital animations.


The phonetic pronunciation of “In-Betweening” would be: /ɪn biːˈtwiːnɪŋ/

Key Takeaways


  1. Definition: In-Betweening, also known as “tweening,” is a key process in all types of animation, including computer-digital 2D animation. It involves generating intermediate frames between two images to give the appearance of the first image evolving smoothly into the second one.
  2. Process: In traditional animation, the process of In-Betweening was often executed by junior artists, while the key frames would be crafted by the more experienced animators. In digital animation, software can automatically generate the in-betweens after the keyframes have been created.
  3. Importance: In-Betweening is crucial for creating fluid, realistic animations. The number of in-betweens can determine the speed of the action: more in-betweens result in slower action, as the change between frames is smaller and less noticeable.



In-betweening, also known as tweening, is a crucial term in technology, particularly within the field of animation. It refers to the process of generating intermediate frames between two images to give the appearance of the first image evolving smoothly into the second one. This technique is key because it results in smooth, fluid motion sequences, reducing the workload of animators by filling in the gaps between key frames, thereby enhancing the visual appeal and realism of the animation. Without tweening, animations would appear disjointed and choppy, significantly diminishing the viewing experience. Thus, in-betweening is a vital part of producing high-quality, seamless animation or motion graphics.


In-Betweening, also known as tweening, is a vital technology-driven process in animations that essentially helps breathe life into static images. Its main purpose is to create intermediate frames between two images, known as key frames, to give the illusion of smooth, fluid movement. This process is particularly important in achieving realistic movements in animations, ranging from the motion in cartoon characters to complex CGI elements in movies. By automating the generation of frames that exist between key points of actions, in-betweening saves animators a tremendous amount of time and effort, allowing them to focus on more intricate details of the production.In-betweening is majorly used in digital animation and gaming sectors to make the movements appear seamless and natural. For instance, if an animator needs to create a scene where a character moves from point A to point B, the scene starts and ends with the two key frames. The in-betweening process then produces the intermediate frames to cover the distance between points A and B, making the movement look realistic and smooth. This technology has revolutionized the animation industry by making it possible to produce more detailed and complex animations in a much shorter period. Without in-betweening, animators would have to draw every single movement manually, which would be incredibly time-consuming and labor-intensive.


1. Animation: In-betweening is a common term used in the animation industry. Creating a smooth animation requires the use of in-between frames. These are the frames that exist between the beginning and end of an animation movement, providing a seamless transition. Shows like ‘The Simpsons’ or ‘Mickey Mouse’ as well as numerous other cartoons and animated features make heavy use of this technique.2. Video Games: In the gaming industry, in-betweening is critical in creating smooth character movements or object transitions. It helps in enhancing the realism in the game by creating the intermediate frames in an animation. Games like ‘Assassin’s Creed’ and ‘The Legend of Zelda’ would use this to create fluid character movements.3. CGI in Movies: In-betweening is also used in Computer Generated Imagery (CGI) within the film industry. This technology helps to create stunning and realistic animations. Movies like ‘Avengers: Endgame’ or ‘The Lion King’ (2019) have used in-betweening to create lifelike movements for their characters and special effects.

Frequently Asked Questions(FAQ)

Sure, here’s an FAQ section for the technology term “In-Betweening”:Q1: What is In-Betweening in technology?A1: In-Betweening, also known as tweening, is a process in animation that involves generating intermediate frames between two keyframes to give the appearance of motion or transformation. This term is prevalent in the realm of computer animation.Q2: How does In-Betweening work?A2: In-Betweening works by creating transitional frames between the starting frame (keyframe) and the ending frame (keyframe). The computer calculates the movement between each frame, creating the illusion of fluid movement or transition.Q3: What is the purpose of In-Betweening?A3: In-Betweening serves the purpose of simulating realistic movement or transitions in an animation. It creates a smooth transition from one keyframe to the next, making the animation more fluid and natural to the eye.Q4: What software uses In-Betweening? A4: There are several software applications that utilize In-Betweening including Adobe Animate, Toon Boom Harmony, and Blender. This technology is widely used in digital animation tools. Q5: What’s the difference between traditional animation and In-Betweening?A5: In traditional animation, every single frame is drawn by hand which is time-consuming and less precise. In-Betweening, on the other hand, leverages computer technology to automatically generate intermediate frames, saving time and enhancing precision in creating smooth transitions.Q6: Can In-Betweening be used in 3D animation?A6: Yes, In-Betweening can be used in 3D animation. It is actually a standard process in most 3D animation pipelines, being used to create smooth, realistic movement.Q7: Is learning In-Betweening important for aspiring animators?A7: Yes, learning how to use In-Betweening effectively is a valuable skill for animators. It can greatly enhance the fluidity and realism of animations, as well as improve animation efficiency.

Related Tech Terms

  • Key Frames: These are particular frames in an animation that define the starting and ending points of a movement.
  • Tweening: Also known as ‘In-betweening’, it is a technique in animation that involves generating intermediate frames between two images to give an illusion of motion.
  • Frame Rate: It refers to the frequency at which an imaging device produces consecutive images called frames. High frame rates create smoother animations.
  • Computer Animation: Also known as CGI animation, it involves making animated images using computer graphics.
  • Interpolation: A method in animation that involves calculating intermediate values between two frames to create fluid transitions.

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