Subpixel compounds decompose the rendering of multi-sampling algorithms such as anti-aliasing and depth-of-field rendering. Any Equalizer application can benefit from subpixel compounds without modification through the default software anti-aliasing implementation shown below.
Applications can also be modified to support any multi-sampling algorithm with an arbitrary number of samples. One use case is implemented in the eqPly example, which performs idle software anti-aliasing, regardless of the configured compounds. When used with a subpixel compound, the idle AA algorithm converges much faster to the final result.
As for the DB compound, the subpixel recomposition has linear increasing IO requirements for the pixel transfer, with the difference that only color information has to be transmitted for compositing.
