Képfrissítési

Képfrissítési, which translates to "image refresh" or "frame update" in English, is a fundamental concept in computer graphics and display technology. It refers to the process by which the image displayed on a screen is redrawn or updated. This process is crucial for displaying motion, responding to user input, and showing changes in the visual environment.

The rate at which képfrissítési occurs is known as the refresh rate, typically measured in Hertz (Hz). A higher refresh rate means the screen is updated more times per second, resulting in smoother motion and reduced perceived flicker. For example, a display with a 60Hz refresh rate updates the image 60 times every second. This is a common standard for many monitors and televisions.

In real-time applications like video games and interactive simulations, efficient képfrissítési is paramount. The graphics processing unit (GPU) is responsible for rendering new frames, and the display then shows these frames as they become available. The overall perceived smoothness and responsiveness of these applications are directly tied to how quickly and consistently képfrissítési can be achieved. Inconsistent or low képfrissítési can lead to visual artifacts such as screen tearing, where different parts of the screen display images from different points in time. Technologies like VSync and Adaptive Sync (e.g., G-Sync, FreeSync) are employed to synchronize the képfrissítési rate with the frame rendering rate of the GPU, mitigating these issues.