3 ms·

Just in case anyone is interested, this was first implemented by the original author, Eric Lengyel, as part of his proprietary game engine, Tombstone Engine: h

• panic 9y ago
  And there's a paper describing the technique coming soon: https://twitter.com/EricLengyel/status/872362370689097732 https://twitter.com/EricLengyel/status/872362370689097732
• exDM69 9y ago
  He's also the author of "Mathematics for 3D Game Programming and Computer Graphics", which is a nice book that covers a lot of the fundamental topics and is a useful book to have in your library for reference if you do any 3d graphics, game or physics programming. It doesn't go too deep into the subjects, but it's a nice to have anyway. He has done lots of work on the field, so there are quite a few contributions he has made. http://mathfor3dgameprogramming.com/ http://mathfor3dgameprogramming.com/