Physics engine with collision detection neighbor welding

US11580685B2 · kind B2 · utility

Assignee

• MICROSOFT TECHNOLOGY LICENSING, LLC · US

Inventors

• Petar Mitrovic · Velika Mostanica, RS
• Maxwell Abernethy · San Francisco, US
• Alexander Sven Fichtner · Munich, DE
• David Davidovic · Negotin, RS
• Eoin McLoughlin · Dublin, IE
• Janos Benk · Munich, DE
• Michael Alexander Buschbeck · Haimhausen, DE
• Milan Simic · Velika Mostanica, RS
• Milos Jovanovic · Portland, US
• Nikola Nikolic · Velika Mostanica, RS
• Norbert Nemec · Munich, DE
• Oliver Strunk · Munich, DE
• Pavle Josipovic · Umka, RS
• Pavle Popovic · Velika Mostanica, RS
• Rory Mullane · Dublin, IE

Key dates

• Filing date: Mar 12, 2021
• Grant date: Feb 14, 2023
• Expiry date: Mar 12, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2219/2016
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A computing device is provided, comprising a processor configured to execute a physics engine. The physics engine is configured to, during narrowphase collision detection of a collision detection phase, identify a set of convex polyhedron pairs, each including a first convex polyhedron from a first rigid body and a second convex polyhedron from a second rigid body. The physics engine is further configured to, for each convex polyhedron pair, determine a separating plane. The physics engine is further configured to perform neighbor welding on pair combinations of the convex polyhedron pairs during the narrowphase collision detection to thereby modify the separating planes of at least a subset of the convex polyhedron pairs. The physics engine is further configured to determine collision manifolds for the convex polyhedron pairs, including for the subset of convex polyhedron pairs having the modified separating planes.