Quad buffering
From Wikipedia, the free encyclopedia
Quad buffering is a technology for implementing stereoscopic frame rendering in computer graphics. For stereoscopic rendering, each eye must receive a separate image. Quad buffering uses double buffering with a front buffer and back buffer for each eye, totaling four buffers:
- Left front buffer
- Left back buffer
- Right front buffer
- Right back buffer
Similarly to the v-sync in 2D mode, quad buffering allows to swap the front and back buffers for both eyes in sync, allowing the display to seamlessly work with different rendering frame rates.
Quad buffering requires special support in the graphics card drivers which is disabled for most consumer cards. AMD's Radeon HD 6000 Series and newer support it .
3D standards like OpenGL[1] and Direct3D support quad buffering.
See also
- Stereoscopy
- LC shutter glasses
- Nvidia 3D Vision
- HD3D
References
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