Matt Pharr  

 



  ![](/sites/default/files/person/matt.pharr_.jpg)

  

 Matt joined NVIDIA Research in 2018, coming from Google, where he initiated and led the light field capture and rendering project in the VR group for three years. Previously, he has worked on SPMD compilers, started two companies, and worked on both offline and real-time rendering. He has a Ph.D. from the graphics lab at Stanford. His current research interests include the application of machine learning to rendering and real-time ray tracing.

Matt is an author of the book [Physically Based Rendering: From Theory to Implementation](http://pbrt.org). First published in 2004, and now in its third edition, the book has influenced both off-line and real-time rendering, both of which have now generally adopted physically-based approaches. In recognition of the impact the book has had on the movie industry, Matt and the other authors were awarded a [Scientific and Technical Academy Award](https://www.youtube.com/watch?v=7d9juPsv1QU) in 2014.

He was previously at NVIDIA at the advent for GPU programmability fifteen years ago. Then, he edited the book *GPU Gems 2* and did early work on the use of GPUs for general-purpose computation.



   Research Area(s)

[Computer Graphics](/index.php/research-area/computer-graphics)

 

 

  

 Main Field of Interest

[Computer Graphics](/index.php/research-area/computer-graphics)

 

  

 

 

 



 ### Publications

 

### 2024 

[Decorrelating ReSTIR Samplers via MCMC Mutations](/index.php/publication/2024-07_decorrelating-restir-samplers-mcmc-mutations)

Rohan Sawhney, [Daqi Lin](/index.php/person/daqi-lin), [Markus Kettunen](/index.php/person/markus-kettunen), [Benedikt Bitterli](/index.php/person/benedikt-bitterli), [Ravi Ramamoorthi](/index.php/person/ravi-ramamoorthi), [Chris Wyman](/index.php/person/chris-wyman), [Matt Pharr](/index.php/person/matt-pharr)













[A Free-Space Diffraction BSDF](/publication/2024-07_free-space-diffraction-bsdf)

Shlomi Steinberg, [Ravi Ramamoorthi](/person/ravi-ramamoorthi), [Benedikt Bitterli](/person/benedikt-bitterli), Arshiya Mollazainali, [Eugene d'Eon](/person/eugene-d-eon), [Matt Pharr](/person/matt-pharr)













[Filtering After Shading With Stochastic Texture Filtering](/publication/2024-05_filtering-after-shading-stochastic-texture-filtering)

[Matt Pharr](/person/matt-pharr), [Bartlomiej Wronski](/person/bart-wronski), Marco Salvi, Marcos Fajardo



[ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games (I3D)](https://i3dsymposium.org/2024/)



Best Paper





### 2023 

[Fast Procedural Noise By Stochastic Sampling](/publication/2023-06_fast-procedural-noise-stochastic-sampling)

Marcos Fajardo, [Matt Pharr](/person/matt-pharr)



[Eurographics Symposium on Rendering](https://diglib.eg.org/handle/10.2312/sr20231141)









### 2022 

[Real-Time Path Tracing and Beyond](/publication/2022-07_real-time-path-tracing-and-beyond)

[Petrik Clarberg](/person/petrik-clarberg), [Simon Kallweit](/person/simon-kallweit), [Craig Kolb](/person/craig-kolb), Pawel Kozlowski, Yong He, [Lifan Wu](/person/lifan-wu), Edward Liu, [Benedikt Bitterli](/person/benedikt-bitterli), [Matt Pharr](/person/matt-pharr)



[HPG 2022 Keynote](https://www.highperformancegraphics.org/2022/program/)









### 2021 

[ReSTIR GI: Path Resampling for Real-Time Path Tracing](/publication/2021-06_restir-gi-path-resampling-real-time-path-tracing)

Yaobin Ouyang, Shiqiu Liu, [Markus Kettunen](/person/markus-kettunen), [Matt Pharr](/person/matt-pharr), Jacopo Pantaleoni



Computer Graphics Forum (Proceedings of High Performance Graphics)









### 2020 

[Spatiotemporal reservoir resampling for real-time ray tracing with dynamic direct lighting](/publication/2020-07_spatiotemporal-reservoir-resampling-real-time-ray-tracing-dynamic-direct)

Benedikt Bitterli, [Chris Wyman](/person/chris-wyman), [Matt Pharr](/person/matt-pharr), Peter Shirley, [Aaron Lefohn](/person/aaron-lefohn), Wojciech Jarosz



ACM Transactions on Graphics (SIGGRAPH 2020)









[ Practical Product Sampling by Fitting and Composing Warps](/publication/2020-07_practical-product-sampling-fitting-and-composing-warps)

David Hart, [Matt Pharr](/person/matt-pharr), [Thomas Müller](/person/thomas-muller), [Ward Lopes](/person/ward-lopes), Morgan McGuire, Peter Shirley



[EuroGraphics Symposium on Rendering](https://egsr2020.london/)









[A Taxonomy of Bidirectional Scattering Distribution Function Lobes for Rendering Engineers](/publication/2020-06_taxonomy-bidirectional-scattering-distribution-function-lobes-rendering)

Morgan McGuire, Julie Dorsey, John F. Hughes, Steve Marschner, [Matt Pharr](/person/matt-pharr), Peter Shirley



[EuroGraphics Workshop on Material Appearance Modeling](https://diglib.eg.org/handle/10.2312/2584)









### 2019 

[Dynamic Many-Light Sampling for Real-Time Ray Tracing](/publication/2019-07_dynamic-many-light-sampling-real-time-ray-tracing)

Pierre Moreau, [Matt Pharr](/person/matt-pharr), [Petrik Clarberg](/person/petrik-clarberg)



Proceedings of High Performance Graphics 2019









[Efficient Generation of Points that Satisfy Two-Dimensional Elementary Intervals](/publication/2019-02_efficient-generation-points-satisfy-two-dimensional-elementary-intervals)

[Matt Pharr](/person/matt-pharr)



[Journal of Computer Graphics Techniques](http://jcgt.org/published/0008/01/04/)