Alternate Frame Rendering Image rendering (computer graphics) is the process of transforming logical objects: Points, Lines, Polygons, Circles, Pictures ... etc. into physical representation as electronic signals suitable for raster or vector display. It can also refer to the conversion of orthographic design drawings into 3 dimensional images with surfaces, textures, lighting, shadows, reflections and animation.
Alternate Frame Rendering (AFR) is a parallel graphics rendering architecture, which combines the work output of two or more video processors (or separate video graphics cards) into a single monitor, in order to improve image quality and/or to accelerate the rendering performance. This technique is useful for generating 3D video sequences in real time, improving or filtering textured polygons and performing other computationally intensive tasks, typically associated with computer gaming, CAD and 3D modeling.