Fast prototyping of virtual reality based surgical simulators with physX-enabled GPU

Wai Man Pang, Jing Qin, Yim Pan Chui, Pheng Ann Heng

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

5 Citations (Scopus)


We present our experience in fast prototyping of a series of important but computation-intensive functionalities in surgical simulators based on newly released PhysX-enabled GPU. We focus on soft tissue deformation and bleeding simulation, as they are essential but have previously been difficult to be rapidly prototyped. A multilayered soft tissue deformation model is implemented by extending the hardware-accelerated mass-spring system (MSS) in PhysX engine. To ensure accuracy, we configure spring parameters in an analytic way and integrate a fast volume preservation method to overcome the volume loss problem in MSS. Fast bleeding simulation with consideration of both patient behavior and mechanical dynamics is introduced. By making use of the PhysX built-in SPH-based fluid solver with careful assignment of parameters, realistic yet efficient bleeding effects can be achieved. Experimental results demonstrate that our approaches can achieve both interactive frame rates and convincing visual effects even when complex models are involved.
Original languageEnglish
Title of host publicationTransactions on Edutainment IV
Number of pages13
Publication statusPublished - 8 Nov 2010
Externally publishedYes
Event5th International Conference on E-learning and Games, Edutainment 2010 - Changchun, China
Duration: 1 Aug 20101 Aug 2010

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume6250 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Conference5th International Conference on E-learning and Games, Edutainment 2010

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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