The paper "Position-Normal Distributions for Efficient Rendering of Specular Microstructure" is available here:<br /><br /><br /><br />Vienna Rendering course:<br /><br /><br /><br />We would like to thank our generous Patreon supporters who make Two Minute Papers possible:<br />Andrew Melnychuk, Brian Gilman, Dave Rushton-Smith, Dennis Abts, Esa Turkulainen, Evan Breznyik, Kaben Gabriel Nanlohy, Michael Albrecht, Michael Jensen, Michael Orenstein, Steef, Sunil Kim, Torsten Reil.<br /><br /><br />Two Minute Papers Merch:<br />US: <br />EU/Worldwide: <br /><br />Music: Antarctica by Audionautix is licensed under a Creative Commons Attribution license ()<br />Artist: <br /><br />Thumbnail background image credit: <br />Splash screen/thumbnail design: Felícia Fehér - <br /><br />Károly Zsolnai-Fehér's links:<br />Facebook: <br />Twitter: <br />Web: