Bethesda Softworks released both of John Carmack's QuakeCon 2013 talks on its YouTube channel today, and you can watch id Software's co-founder and technical director talk about gaming, technology, rockets and more right here.
In the video above, you'll see Carmack's keynote presentation. It weighs in a just under three hours — about 40 minutes shorter than last year's keynote. As Polygon reported at the time, he kicked off the keynote with a discussion about next-gen consoles, his thoughts on Kinect and followed it with wide-ranging discussions of much, much more.
In the video below, you'll see Carmack's hour-and-a-half talk called "The Physics of Light and Rendering." In his legendarily detailed fashion, he discusses how light behaves in the real world and how to recreate light in video games. id Software's ID Tech engine is a result of Carmack's technical prowess. The latest version, ID Tech 5, powered the studio's 2011 first-person shooter Rage, and its tech was incorporated into 2012's Doom 3 BFG Edition.
Last week, Carmack became the chief technical officer of Oculus VR, the company behind the Oculus Rift virtual reality headset. In a tweet from that day, he characterized his new responsibilities as belonging to Oculus first, id second and his Armadillo Aerospace company third.