Art-based Rendering of Fur, Grass, and Trees. - Michael A. Kowalski; Lee Markosian; J. D. Northrup; Lubomir D. Bourdev; Ronen Barzel; Loring Holden; John F. Hughes (SIGGRAPH, 1999)

Art-based rendering with continuous levels of detail. - Lee Markosian; Barbara J. Meier; Michael A. Kowalski; Loring Holden; J. D. Northrup; John F. Hughes (NPAR, 2000)

Artistic silhouettes: a hybrid approach. - J. D. Northrup; Lee Markosian (NPAR, 2000)

Toy Story 3: Death By Monkeys. - J. D. Northrup (SIGGRAPH Dailies, 2010)

Crowds on Cars 2. - Trent Crow; Stephen Gustafson; Michael Lorenzen; Jake Merrell; Bob Moyer; J. D. Northrup (SIGGRAPH Talks, 2011)

Crowds at Monsters University. - Hemagiri Arumugam; Michael Frederickson; J. D. Northrup (SIGGRAPH Talks, 2013)

Other worldly crowds in Coco. - Jane Yen; Stephen Gustafson; Aaron Lo; J. D. Northrup; Lana Sun (SIGGRAPH Talks, 2018)