Towards Path Tracing in Games

Jacco Bikker, Jeroen van Schijndel
NHTV University of Applied Sciences, Breda, The Netherlands
ACM SIGGRAPH Symposium on Interactive 3D Graphics (i3D), 2012


   title={Towards Path Tracing in Games},

   author={Bikker, Jacco and van Schijndel, Jeroen},



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We investigate GPU path tracing performance in the context of real-time rendering for games. We propose a reformulation of Russian roulette, as well as an efficient implementation of the path regeneration algorithm by Novak et al. [Novak et al. 2010]. We show that a combination of these algorithms provides high performance for a variety of scenes. We integrate our scheme into the Brigade system, an experimental path tracer for real-time games, and use it to render the virtual world of a student game at interactive frame rates.
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