During the early days of cinema, before television, filmmakers had to manually film the cameras. Frame rates in theaters at the time ranged from 16 to 22 frames per second.
For better management of film speed, a new engine has been added to the camera. This engine can determine the number of photographic images taken per second.
This is referred to as “frames per second,” or “fps.”

The frame rate of an animated film

In movies, we typically shoot at a frame rate of 24 frames per second. In 2D animation, this means a frame is drawn 24 times per second.
Even though there’s a lot of work, if there isn’t any immediate action, you can typically get away with only one drawing that spans two frames. As a result, there are 12 drawings every second.

fps loop

fps loop
Because you make adjustments or create a new design every two frames, this is referred to as “working on 2.” When the action is relatively static, you can even work on 3 and 4. In Japanese animation and stop motion, it’s very prevalent.
They employ the same designs on many frames at times.
A lot of 2D animation is “two-shot,” which means each sketch is rotated twice (or two). When the action is quick, it’s common to switch to “things” to keep up with the pace, which means that each image paints a picture.


It doesn’t function that way in 3D, though; when a 3D character isn’t moving at all, even for an image, it doesn’t appear realistic. The scene would  appear to be dead. In 3D animation, this makes the “moving hold” problematic. Moving hold is used when you want a character to look to be alive while doing nothing.
While in 2D and stop motion we can draw every 3 to 5 frames, or not allow the character move for a few seconds, in 3D, we must still let the character move.

The frame rate varies based on the media being used

There are two standard television images: 30 frames per second (NTSC) for the United States and 25 frames per second (PAL) for Europe (PAL). In traditional 2D animation, an animator does not draw all of the drawings. HD digital television and the Internet now have more standards than ever before, and this is especially true for the Internet.

Filmmakers and video game developers may now construct playback frame rates of 60 fps, 70 fps, 90 fps, and 90 fps and 120 fps for numerous productions because everything has gone digital.

A higher frame rate does not always imply better animation

These frame rates, however, are not essential for all forms of animation or even live action. The human eye can only receive 10 to 12 images each second, according to research.


There’s nothing wrong with animating at a higher frame rate, let alone utilizing interpolating software during the process, as some animation studios are beginning to do. However, when you apply interpolation to an established piece of art, issues occur, especially if the application is tainted by a greater sense of “improving” the original film.

Flexibility in frame rate to keep production cost in control

As time went on animators soon discovered that they could blend different counting techniques such as using 1’s for actions and 2’s for dialogue or basic movements. This resulted in animators shooting on 1’s and 2’s in a 24fps, 25fps, or 30fps delivery system. As television got more popular and budgets shrank, animators needed to shoot two frames for each moving portion of the animation in order to complete it swiftly.


At 30 frames per second, this corresponds to two animations. This resulted in animating on 2’s at 30fps. This was also eventually done in filmmaking and that resulted in animating on 2’s at 24fps.




Animating on 3’s was more for rests and transitions or for special choppy effects. So sometimes you will hear about artists animating on 3’s, which is used for transitions or rests between movements.



This set of motion counters is frequently used to increase motion control and performance while keeping production time and costs in check.

Animost – Vietnam 3D Animation Studio

animost team

year end party animost team



Image Credit: Google Images

Reference Sources:

  1. Animation World Network: https://www.awn.com/
  2. Cartoon Brew – Technology: https://www.cartoonbrew.com/tech
  3. Befores & Afters – Visual effects and animation journalist: https://beforesandafters.com/
  4. Bloomberg News: https://www.bloomberg.com/news/
  5. Insider: https://www.insider.com/
  6. Stop motion Magazine: https://stopmotionmagazine.com/why-your-frame-rate-fps-matters-in-animation/