Foobar2000:Components/Chronial's Coverflow (foo chronflow)
Coverflow... This plugin is still in beta developement and should not be used if you are affraid of bugs or crashes!
These Settings influence the quality of the generated image. While multisampling only increases the smoothness of the cover edges, supersampling also does increase the cover resizing quality. But while multisampling only increases the load on the GPU, supersampling also increases the load on the CPU. For both of the more passes means more quality - supersampling with 2 passes should yield enough quality and settings above 4 should barely make any difference. You should not use 16 pass supersampling, as it is very CPU and GPU intensive (the image is rendered 16 times!).
Changes to the multisampling settings will only take effect after the panel is restarted (either hide and show it or restart foobar)