Sonic Ether's Screen-Space Ambient Occlusion The new free version is pending review, a link to the Asset Store page will be here when it's approved. Sonic Ether's Screen-Space Ambient Occlusion (SESSAO) is an image effect for Unity 5.4 and up that approximates soft contact shadows to bring a lighting phenomenon seen in the real world to your scenes. Not only is it algorithmically unique and flexible, it includes a "color bleeding" feature not seen in other SSAO solutions that can further improve the quality of your scenes. Its quality to performance cost ratio is much higher than built-in Unity SSAO and many other SSAO algorithms. SESSAO is plug-and-play. Simply add the image effect to your main camera and that's it! It is compatible with Forward, Deferred, and Legacy Deferred rendering paths, DX9 and DX11, and works with any shaders (including Alloy shaders). This image effect is not compatible with mobile devices. Please refer to the included User Guide for details on how to use this asset.