Curriculum Vitae

Bruce Walter
580 Rhodes Hall
Cornell University
Ithaca, NY 14853
bruce.walter@cornell.edu
www.graphics.cornell.edu/~bjw

Education

Ph.D., Computer Science, Cornell University, August 1998
Dissertation: Density Estimation Techniques for Global Illumination
Advisor: Donald P. Greenberg

B.A., Computer Science and Physics with highest honors, Williams College, May 1991
Thesis: A Density Matrix Approach to Motional Narrowing
Summa Cum Laude, GPA 3.84

Work Experience

Senior Research Associate,. Program of Computer Graphics, Cornell University, October 1999 to present
Research projects in many areas including global illumination, scalable rendering, material appearance, perception, and energy analysis.  Responsibilities include leading projects, coordinating student contributions and research, architecting and maintaining common codebase, and designing novel algorithms.


Post-Doctoral Researcher, iMAGIS, Grenoble, France, October 1998 to September 1999
Research topics include interactive rendering, global illumination, and scene modification and relighting

Project Engineer, Caligari Corporation, Mountain View, CA, January 1993 to August 1994
Lead developer for Caligari trueSpace 1.0 project. A modeling/rendering/animation package for Windows 3.1. Product won numerous awards including CeBit's best of show award and PC Magazine's award for technical excellence.

Refereed Publications

Ling-Qi Yan, Milos Hasan, Bruce Walter, Steve Marschner, and Ravi Ramamoorthi,  Rendering Specular Microgeometry with Wave Optics, ACM Transactions on Graphics (SIGGRAPH 2018), August 2018

Virginia Badler, Joseph Kider Jr., Megan Moore, Bruce Walter, and Norman Badler,  Accurate Soil and Mudbrick BRDF Models for Archaeological Illumination Rendering with Application to Small Finds, Eurographics Workshop on Graphics and Cultural Heritage, September 2017

Zhao Dong, Bruce Walter Steve Marschner, and Donald P. Greenberg,  Predicting Appearance from Measured Microgeometry of Metal Surfaces, ACM Transactions on Graphics, December 2015

Ioannis Gkioulekas, Bruce Walter, Edward H. Adelson, Kavita Bala, and Todd Zickler  On the Appearance of Translucent Edges, IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2015

Edgar Velazquez-Armendariz, Zhao Dong, Bruce Walter and Donald P. Greenberg,  Complex Luminaires: Illumination and Appearance Rendering, ACM Transactions on Graphics, April 2015

Bei Xiao, Bruce Walter, Ioannis Gkioulekas, Todd Zickler, Edward Adelson, Kavita Bala   Looking against the light: How perception of translucency depends on lighting direction, Journal of Vision 14(3), March 2014

Carsten Dachsbacher, Jaroslav Krivanek, Milos Hasan, Adam Arbree, Bruce Walter, Jan Novak, Scalable Realistic Rendering with Many-Light Methods, Computer Graphics Forum, 33: 88-104., February 2014

Nathaniel L. Jones, Colin J. McCrone, Bruce Walter, Kevin B. Pratt, Donald P. Greenberg,  Automated translation and thermal zoning of digital building models for energy analysis, 13th International Conference of the International Building Performance Simulation Association, August 2013

Donald Greenberg, Kevin Pratt, Brandon Hencey, Nathaniel Jones, Lars Schumann, Justin Dobbs, Zhao Dong, David Bosworth, Bruce Walter,  Sustain: An experimental test bed for building energy simulation, Energy and Buildings, Volume 58, March 2013

Bruce Walter, Pramook Khungurn, Kavita Bala,  Bidirectional Lightcuts, ACM Transactions on Graphics (SIGGRAPH 2012), August 2012

Adam Arbree, Bruce Walter, Kavita Bala, Heterogeneous Subsurface Scattering Using the Finite Element Method, IEEE Transactions on Visualization and Computer Graphics, July 2011


Timothy Condon, Bruce Walter, Kavita Bala, Donald Greenberg,  Prefiltered Cross-Section Occluders, Proceedings of Pacific Graphics, September 2010


Edgar Velazquez-Armendariz, Shuang Zhao, Milos Hasan, Bruce Walter,  Kavita Bala,  Automatic Bounding of Programmable Shaders for Efficient Global Illumination, ACM Transactions on Graphics (SIGGRAPH Asia 2009), December 2009


Milos Hasan, Jaroslav Krivanek, Bruce Walter, Kavita Bala,   Virtual Spherical Lights for Many-Light Rendering of Glossy Scenes, ACM Transactions on Graphics (SIGGRAPH Asia 2009), December 2009


Bruce Walter, Shuang Zhao, Nicolas Holzschuch, Kavita Bala,  Single Scattering in Refractive Media with Triangle Mesh Boundaries, ACM Transactions on Graphics (SIGGRAPH 2009), August 2009

James Ferwerda, Ganesh Ramanarayanan, Bruce Walter, Kavita Bala,Visual Equivalence: an object-based approach to image quality, Proceedings of IS&T 16th Color Imaging Conference (CIC) '08, Nov 2008 


Jonathan T. Moon, Bruce Walter, Steve Marschner, Efficient Multiple Scattering in Hair Using Spherical Harmonics, ACM Transactions on Graphics (SIGGRAPH 2008), August 2008

Bruce Walter, Kavita Bala, Milind Kulkarni, Keshav Pingali, Fast Agglomerative Clustering for Rendering, in IEEE Symposium on Interactive Ray Tracing, August 2008

Milind Kulkarni, Keshav Pingali, Ganesh Ramanarayanan, Bruce Walter, Kavita Bala, L. Paul Chew, Scheduling Strategies for Optimistic Parallel Execution of Irregular Programs, in ACM Symposium on Parallelism in Algorithms and Architectures (SPAA 2008), June 2008

Adam Arbree, Bruce Walter, Kavita Bala, Single-pass Scalable Subsurface Rendering with Lightcuts, in Computer Graphics Forum, 27(2), (Eurographics 2008), April 2008

Milind Kulkarni, Keshav Pingali, Ganesh Ramanarayanan, Bruce Walter, Kavita Bala, L. Paul Chew, Optimistic parallelism benefits from data partitioning, in SIGOPS Oper. Syst. Rev., (ASPLOS 2008), March 2008


Ganesh Ramanarayanan, James Ferwerda, Bruce Walter, Kavita Bala,  Dimensionality of Visual Complexity in Computer Graphics Scenes, in SPIE Human Vision and Electronic Imaging (HVEI '08), January 2008

Ganesh Ramanrayanan, James Ferwerda, Bruce Walter, Kavita Bala, Visual Equivalence: Towards a New Standard for Image Fidelity, in ACM Transactions on Graphics, (SIGGRAPH 2007), August 2007

Bruce Walter, Stephen R. Marschner, Hongsong Li, Kenneth E Torrance, Microfacet Models for Refraction through Rough Surfaces, in Rendering Techniques 2007, Springer-Verlag, (Eurographics Symposium on Rendering), June 2007

Jonathan T. Moon, Bruce Walter, Stephen R. Marschner, Rendering Discrete Media using Precomputed Scattering Solutions, in Rendering Techniques 2007, Springer-Verlag, (Eurographics Symposium on Rendering), June 2007

Milind Kulkarni, Keshav Pingali, Bruce Walter, Ganesh Ramanarayanan, Kavita Bala, Paul Chew, Optimistic Parallelism Requires Abstractions, ACM Conference on Programming Language Design and Implementation (PLDI 2007), June 2007

Bruce Walter, Adam Arbree, Kavita Bala, Donald P. Greenberg, Multidimensional Lightcuts, ACM Transactions on Graphics (SIGGRAPH 2006), July 2006

Edgar Velazquez-Armendariz, Eugene Lee, Bruce Walter, Kavita Bala, Implementing the Render Cache and the Edge-and-Point Image on Graphics Hardware, Proceedings of Graphics Interface 2006, June 2006

Michael Donikian, Bruce Walter, Kavita Bala,  Sebastian Fernandez, Donald P. Greenberg, Accurate Direct Illumination Using Iterative Adaptive Sampling, IEEE Transactions on Visualization and Computer Graphics, June 2006

Kavita Bala, James Ferwerda, Bruce Walter, Information preserving imaging for heterogeneous networked displays, Workshop on Information Visualization and Interaction Techniques across Multiple Displays, ACM CHI 2006.


Bruce Walter, Sebastian Fernandez, Adam Arbree, Kavita Bala, Michael Donikian, Donald P. Greenberg, Lightcuts: A Scalable Approach to Illumination, ACM Transactions on Graphics (SIGGRAPH 2005), July 2005

William A. Stokes, James A. Ferwerda, Bruce Walter, Donald P. Greenberg, Perceptual Illumination Components: a new approach to efficient, high quality global illumination rendering, ACM Transactions on Graphics (SIGGRAPH 2004), August 2004


Ganesh Ramanarayanan and Kavita Bala and Bruce Walter, Feature-Based Textures, in Rendering Techniques 2004, Springer-Verlag, (15th Eurographics Workshop on Rendering), June 2004


Kavita Bala, Bruce Walter, Donald P. Greenberg, Combining Edges and Points for High Quality Interactive Rendering, ACM Transactions on Graphics (SIGGRAPH 2003),  July 2003

Bruce Walter, Sumant Pattanaik, Donald P. Greenberg, Using Perceptual Texture Masking for Efficient Image Synthesis, EUROGRAPHICS 2002 Conference Proceedings, September 2002

Parag Tole, Fabio Pellacini, Bruce Walter, Donald P. Greenberg, Interactive Global Illumination in Dynamic Scenes, ACM Transactions on Graphics (SIGGRAPH 2002), July 2002

Bruce Walter, George Drettakis, Donald P. Greenberg, Enhancing and Optimizing the Render Cache, in Rendering Techniques '02, P. Debevec, S. Gibson (eds), Springer-Verlag, (Proc 13th Eurographics Workshop on Rendering), June 2002

Xavier Granier, George Drettakis, Bruce Walter, Fast Global Illumination Including Specular Effects, in Rendering Techniques 2000,  B. Peroche, H Rushmeier (eds), Springer-Verlag, (Proc 11th Eurographics workshop on Rendering, Brno, Czech Republic)

Bruce Walter, George Drettakis, Steven Parker, Interactive Rendering Using the Render Cache, in Rendering Techniques '99, G. Larson, D. Lichinski (eds), Springer-Verlag, (Proc. 10th Eurographics workshop on Rendering, Granada, Spain.)

Celine Loscos, Marie-Claude Frasson, George Drettakis, Bruce Walter, Xavier Granier and Pierre Poulin Interactive Virtual Relighting and Remodeling, in Rendering Techniques '99, G. Larson, D. Lichinski (eds), Springer-Verlag, (Proc. 10th Eurographics workshop on Rendering, Granada, Spain.)

Bruce Walter, Gun Alppay, Eric Lafortune, Sebastian Fernandez, and Donald P. Greenberg, Fitting Virtual Lights for Non-Diffuse Walkthroughs, ACM SIGGRAPH '97 Conference Proceedings, August 1997

Bruce Walter, Philip M. Hubbard, Peter Shirley, and Donald P. Greenberg, Global Illumination using Local Linear Density Estimation, ACM Transaction on Graphics, July 1997

Donald P. Greenberg, Kenneth E. Torrance, Peter Shirley, James Arvo, James A. Ferwerda, Sumanta Pattanaik, Eric Lafortune, Bruce Walter, Sing-Choong Foo, Ben Trumbore, A Framework for Realistic Image Synthesis, ACM SIGGRAPH '97 Conference Proceedings, August 1997

Peter Shirley, Bretton Wade, David Zareski, Philip Hubbard, Bruce Walter, and Donald P. Greenberg, Global Illumination via Density Estimation, Proceedings of the Sixth Annual Workshop on Rendering, June 1995