Animation frame rate is measured in frames per second (fps).
Understanding Frame Rate
The speed at which an animation plays is determined by its frame rate. As stated in the provided reference, the frame rate is measured in frames per second (fps). This unit indicates how many individual still images (frames) are displayed sequentially in one second to create the illusion of motion.
For example, if an animation has a frame rate of 12 fps, it means 12 different images are shown every second. Higher frame rates generally result in smoother motion.
Common Frame Rates
While frame rate can vary depending on the medium and desired effect, some common rates include:
- 12 fps: Often used for web animations, as mentioned in the reference regarding Flash animations. This rate can give a distinct, sometimes slightly less fluid look, sometimes referred to as "limited animation."
- 24 fps: The standard for cinematic film. This rate provides a good balance of smoothness and the "film look."
- 25 fps: Standard for PAL television (used in many parts of Europe, Asia, and other regions).
- 30 fps: Standard for NTSC television (used in North America and other regions) and common for video games and digital video.
- 60+ fps: Used in high-frame-rate video, some video games, and for slow-motion effects to provide extremely smooth motion.
The choice of frame rate can significantly impact the appearance and feel of an animation. While 12 fps was a default for Flash animations suitable for the web (as noted in the reference), changing the rate might be desirable for different outcomes or technical requirements.
Why Frame Rate Matters
- Smoothness: Higher frame rates generally create smoother, more lifelike motion.
- File Size: More frames per second mean more data, potentially leading to larger file sizes.
- Performance: The device or platform playing the animation needs to be able to render frames quickly enough at the specified rate.
- Artistic Style: Different frame rates can contribute to a specific visual style or aesthetic.
In summary, animation frame rate is fundamentally quantified using the unit of frames per second (fps).
