Minkowski Portal Refinement and Speculative Contacts in Box2D

A physics rigid body simulation engine is a fundamental component of today’s videogames. There have been recent advancements in the fields of collision detection and collision resolution with supposed performance gains. In this paper we evaluate Minkowski Portal Refinement,a new collision detection routine against GJK, the current standard. We also evaluate the speculative contacts technique for performance and behavior against Box2D’s “conservative advancement” continuous collision detection approach.