When working with video, some concepts become familiar sooner or later. One of them is better known as Frame Rate and is directly related to the number of images that can fit in a single second to give the viewer a greater or lesser sense of motion.
The number of frames per second used can be customized, so this is how you can change the frame rate in After Effects.
Although it may seem otherwise, a camera does not record continuously but captures several frames of action in a given time. This is what we call FPS in After Effects: a feature that allows you to decide how many frames there will be in each second of a video.
So if you are doing a frame-by-frame animation project at 30 fps, you will have to do 30 illustrations for every second of motion.
The higher the FPS, the better quality your video will be.
The default FPS values range in After Effects start from 8 to 120. To know the ideal number of frames per second for a good quality project, remember the faster one frame gives way to another, the better your video will look. This means that an 8 FPS project would be very low quality, while a 120 FPS project would be one of the big leagues.
However, if you need to make good quality animations without sacrificing the performance of your computer, we recommend working around 30 FPS. Trust us, it will look nice: this is the resolution generally used for Live TV broadcasts.
Now, to set the number of FPS your project will have in After Effects you must follow these steps:
Tip: you also can change the FPS of an imported file. To do so, right-click on it and go to Interpret footage. Finally, select Main and change the frame rate by typing a new value in the Assume/Conform this frame rate option.