Christer Ericson

Papers

Total Citations

H-Index

About

Christer Ericson is a leading authority in real-time collision detection and interactive 3D geometry processing, with his work forming the backbone of modern game physics engines and simulation systems. His landmark 2004 course, "Collision detection and proximity queries," has garnered 36 citations and remains a foundational reference for developers and researchers tackling spatial queries in virtual environments. Ericson is best known for authoring the seminal book *Real-Time Collision Detection*, which is widely considered the definitive practical guide on the subject—covering acceleration structures, continuous collision detection, and robust geometric tests. His contributions have profoundly influenced the video game industry, enabling complex, physically plausible interactions in titles ranging from first-person shooters to open-world adventures. Beyond his written work, Ericson has shaped industry practices through his role at Sony Interactive Entertainment, where he advanced techniques for proximity queries and adaptive distance fields (ADFs). With a career dedicated to making collision detection both fast and reliable, his research continues to be essential reading for anyone building interactive 3D systems, from indie developers to AAA studios.