Michael Kass is an American computer scientist best known for his work in computer graphics and computer vision. He has won an Academy Award and the SIGGRAPH Computer Graphics Achievement Award and is an ACM Fellow. Kass developed the Hierarchical Z-Buffer with collaborators Ned Greene and Gavin Miller, a rendering technique that enables great increases in practical scene complexity compared to traditional Z-buffering. The algorithm can be found in all modern graphics processing units (GPU). Kass is also a champion juggler, Argentine tango dancer, and an accomplished ice dancer.