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Assuming a 60 Hz refresh rate, a benchmark tool may report this as 144 frames per second. However, the user will perceive less due to some frames existing for a tiny fraction of a display's refresh cycle. Micro stuttering is a quality defect that manifests as irregular delays between frames rendered by a graphics processing unit (GPU).
On displays with a fixed refresh rate, a frame can only be shown on the screen at specific intervals, evenly spaced apart. If a new frame is not ready when that interval arrives, then the old frame is held on screen until the next interval (stutter) or a mixture of the old frame and the completed part of the new frame is shown ().
Frame rate up-conversion (FRC) is the process of increasing the temporal resolution of a video sequence by synthesizing one or more intermediate frames between two consecutive frames. A low frame rate causes aliasing, yields abrupt motion artifacts, and degrades the video quality. Consequently, the temporal resolution is an important factor ...
However, the lower refresh rate of 50 Hz introduces more flicker, so sets that use digital technology to double the refresh rate to 100 Hz are now very popular. (see Broadcast television systems ) Another difference between 50 Hz and 60 Hz standards is the way motion pictures (film sources as opposed to video camera sources) are transferred or ...
That eliminates the stutter that occurs as the rendering engine frame rate drops below the display's refresh rate. [4] Alternatively, technologies like FreeSync [5] and G-Sync [6] reverse the concept and adapt the display's refresh rate to the content coming from the computer. Such technologies require specific support from both the video ...
The use of high-dynamic-range imaging (HDRI) in computer graphics was introduced by Greg Ward in 1985 with his open-source Radiance rendering and lighting simulation software which created the first file format to retain a high-dynamic-range image. HDRI languished for more than a decade, held back by limited computing power, storage, and ...
Given a smaller window of say 2 frames, however, the effect of lag becomes much more significant. Assuming the human's response is centered on the 2 frame window and the super-human has a 99.99% chance to hit the window, introducing a full frame of lag causes the success rate to drop all the way to about 50%.
If a computer has two video cards that combine their outputs into a single video monitor, then one of four methods could be used to create the images. Alternate Frame Rendering (AFR): One graphics processing unit (GPU) computes all the odd video frames, the other renders the even frames. (i.e. time division)