Creating spherical worlds. - Kate Compton; James Grieve; Ed Goldman; Ocean Quigley; Christian Stratton; Eric Todd; Andrew Willmott (SIGGRAPH Sketches, 2007)

User generated terrain in ModNation Racers. - James Grieve; Clint Hanson; John (Liuguo) Zhang; Lucas Granito; Cody Snyder (SIGGRAPH Talks, 2010)