WSAO invented by Michael H. Auerbach (me).
The world’s first real-time fully dynamic radiosity technique capable of rendering indirect shadows. In addition it achieves performance equivalent to about half the speed of high quality SSAO. It procedurally supports animated,dynamic, and static geometry and dynamic point,shape, area, directional, and polynomial lights =]

this is the first image every rendered with the technique. More modern improvements eliminate geometry plane clipping aliasing (the nasty harsh changes in shading visible in the screenshot).