[3] In 2008 Engel introduced light pre-pass rendering as a method of deferred shading variant in the development of videogame graphics,[4][5][6] and is known as an expert in shader programming.
[8][10] As a part of his role with Confetti, Engel works with external clients, and provides consultations to other game developers.
Confetti contributed to games including Tomb Raider, Battlefield 4, Murdered Soul Suspect, Star Citizen, Dirt 4, Vainglory, Transistor, Call of Duty Black Ops 3, Battlefield 1, Mafia 3, Quake Champions, and Phyre.
[11] Engel has written or edited more than 20 books on graphics software development in use by the videogame industry, in line with contemporary techniques and practices.
[1] Engel has also spoken at public conferences regarding various techniques in videogame creation[16] and is a faculty member and advisor to the Academy of Game Entertainment Technology.