Nikunj Raghuvanshi

Nikunj Raghuvanshi


Computer Graphics group,
Microsoft Research,
One Microsoft Way, Redmond, WA 98052-6399, U.S.A. 



  • Interactive graphics and audio

  • Physically-based modeling, numerical simulation

  • Real-time sound synthesis and propagation

  • Digital signal processing


Main projects


Real-time Wave-based acoustics in Half Life 2TM


Precomputed Wave Simulation for Real-Time Sound Propagation of Dynamic Sources in Complex Scenes
Nikunj Raghuvanshi, John Snyder, Ravish Mehra, Ming C. Lin, and Naga K. Govindaraju
ACM Transactions on Graphics (SIGGRAPH 2010), 29(3), July 2010.

(c) ACM 2010
[paper PDF] [supplement PDF] [video (DivX, 261MB)] 
[PPT (slides only, 12MB)] [PPT+videos (ZIP, 550MB)]


Real-time sound synthesis in Crackdown 2TM


Sound Synthesis for Impact Sounds in Video Games
Brandon Lloyd, Nikunj Raghuvanshi, Naga K. Govindaraju

ACM Symposium on Interactive 3D Graphics and Games (ACM I3D), 2011

This technology was integrated into the Xbox 360 title Crackdown 2 published by Microsoft Game Studios, in collaboration with Guy Whitmore and Kristofor Mellroth.

[paper PDF] [video (hires, wmv 107MB)] 
[video (lowres, wmv 16MB)]


Acoustic wave simulation on a cathedral


Efficient and Accurate Sound Propagation using Adaptive Rectangular Decomposition (ARD)
Nikunj Raghuvanshi, Rahul Narain and Ming C. Lin
IEEE Transactions on Visualization and Computer Graphics(TVCG), 15(5), 2009.

(c) IEEE 2009
[paper PDF] [video (WMV, 15MB)]


An interactive physics-driven xylophone


Interactive Sound Synthesis for Large Scale Virtual Environments
Nikunj Raghuvanshi and Ming C. Lin
ACM Symposium of Interactive 3D Graphics and Games (I3D), 2006.

(c) ACM 2006
[paper PDF] [video (DivX, 42MB)]



Bitonic-sort on graphics processors (GPU)


Fast and Approximate Stream Mining of Quantiles and Frequencies Using Graphics Processors
Naga K. Govindaraju, Nikunj Raghuvanshi and Dinesh Manocha

(c) ACM 2005
[paper PDF]