Alternate frame rendering

Alternate Frame Rendering (AFR ) is a render mode, which is used in multi-GPU method.

Technology

In this mode, two or more graphics cards share the rendering load, in which the frames are always calculated alternately.

Example:

  • Map 1 renders all straight Images
  • Map 2 renders all odd images

There is no consideration to the different complexity of scenes to be rendered in this process, AFR is very easy to implement and in principle allows all graphics chips in AFR mode operate together. Therefore, AFR is at each multi-GPU technology as a mode selectable ( with the exception of Scan Line Interleave 3dfx ).

Naming

The name derives for AFR was the " Alternate Frame Rendering " technology from ATI Technologies, which came into use in the Rage Fury Maxx. ATI was the first company that offered this mode, and so coined the name.

Advantages / Disadvantages

AFR is currently the fastest mode for multi- GPUs, and is therefore in addition to the ease of implementation also because of the speed with all manufacturers very popular.

However, it has the disadvantage that it may be not used in applications that use the render -to- texture due to its structure. Since many computer games now use render -to- texture, this limits the applicability of AFR a lot.

Application

In the following multi-GPU AFR techniques is used:

Techniques: Alternate Frame Rendering | BitFluent Protocol | Crossfire | Multi - Rendering | MultiChrome | Scalable Link Interface | Scan Line Interleave

Operating / procedure: Alternate Frame Rendering | Parallel Graphics Configuation | Scan Line Interleave | Split Frame Rendering | SuperTiling

  • Image synthesis
Film frame ATI Rage ATI Multi-Rendering
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