Why 24 FPS on Television Feels Smooth, but Stutters in Games
The human eye can perceive motion in a variety of ways, and the difference in how 24 frames per second (FPS) look on a television versus in a video game can be attributed to several factors. This article explores why 24 FPS on television often feels smooth, while the same frame rate in a game can appear stuttered.
Motion Blur and Visual Perception
Motion blur is a technique used in films and television to create a smoother appearance of motion. It blends frames together, which can mask the choppiness associated with lower frame rates. This technique is commonly used in movies to enhance the cinematic experience. In contrast, many video games do not use motion blur as extensively, making the individual frames more distinct and noticeable. As a result, the same frame rate of 24 FPS can look smooth on a television but appear stuttered in a game.
Frame Timing and Synchronization
In films, frames are typically presented in a consistent manner, such as 24 frames every second, which aligns well with the refresh rates of most televisions (e.g., 60 Hz). This synchronization helps to make the motion appear smoother. In games, the timing can vary significantly based on the player's actions and the game's performance. This variability can lead to uneven frame delivery and a perceived stutter in the game experience.
Input Lag and Responsiveness
Video games are interactive and require real-time responses to player inputs. At 24 FPS, the lag between inputs and on-screen actions can feel more pronounced compared to the passive viewing experience of films. Higher FPS values in games contribute to a more responsive and fluid experience. This is a key difference that can make games feel more engaging and less jarring.
Visual Fidelity and Performance Dips
Games often have more complex visuals and require more rendering power than films. This can cause performance dips and frame drops, especially during dynamic scenes. If a game struggles to maintain 24 FPS consistently, it can lead to noticeable stuttering. Performance issues are more apparent in games due to the need for real-time responsiveness and higher visual fidelity.
Display Technology and Perceived Frame Rates
The type of display can also impact how frame rates are perceived. Some TVs have features like frame interpolation or motion smoothing that artificially increase the perceived frame rate, making 24 FPS content look smoother. These features can be beneficial for films but may not be as advantageous for games. Monitors used for gaming may not have these features enabled, further emphasizing the stutter at lower frame rates.
Player Expectations and Ever-Rising Standards
Players often expect higher frame rates for a smooth gaming experience. Many modern games run at 30, 60, or even higher FPS. Returning to 24 FPS can feel jarring and unsatisfactory to these players who have grown accustomed to smoother motion.
Conclusion
In summary, while 24 FPS can look normal in the context of film due to techniques like motion blur and consistent frame delivery, it can appear stuttered in video games due to the need for real-time responsiveness, variable frame timing, and player expectations for smoother motion.