Chris Wyman's Web Page

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My publications, sorted by venue. Click here for my papers, chronologically sorted.
Venues sorted (roughly) in decreasing order of commonly-accepted impact metrics; papers sorted reverse chronologically.

Citation counts, for those with at least 10 citations, come from Google Scholar on Sept 5th, 2025.

Papers in ACM Transactions on Graphics (and equiv. conferences, e.g., SIGGRAPH, SIGGRAPH Asia):

• [2025] "ReSTIR PG: Path Guiding with Spatiotemporally Resampled Paths."
• [2025] "Reservoir Splatting for Temporal Path Resampling and Motion Blur."
• [2025] "Unbiased Differential Visibility Using Fixed-Step Walk-on-Spherical-Caps And Closest Silhouettes."
• [2025] "ReSTIR BDPT: Bidirectional ReSTIR Path Tracing with Caustics."
• [2024] "Area ReSTIR: Resampling for Real-time Defocus and Antialiasing."
• [2024] "Decorrelating ReSTIR Samplers via MCMC Mutations."    [ 14 citations ]
• [2023] "Conditional Resampled Importance Sampling and ReSTIR."    [ 10 citations ]
• [2023] "Amortizing Samples in Physics-Based Inverse Rendering Using ReSTIR."    [ 11 citations ]
• [2022] "Generalized Resampled Importance Sampling: Foundations of ReSTIR."    [ 72 citations ]
• [2021] "Fast Volume Rendering with Spatiotemporal Reservoir Resampling."    [ 39 citations ]
• [2020] "Glossy Probe Reprojection for Interactive Global Illumination."    [ 13 citations ]
• [2020] "Spatiotemporal Reservoir Resampling for Real-time Ray Tracing with Dynamic Direct Lighting."    [ 191 citations ]
• [2016] "Towards Foveated Rendering for Gaze-Tracked Virtual Reality."    [ 629 citations ]
• [2006] "The Halfway Vector Disk for BRDF Modeling."    [ 68 citations ]
• [2005] "An Approximate Image-Space Approach for Interactive Refraction."    [ 145 citations ]

Papers in IEEE Transactions on Visualization and Computer Graphics:

• [2017] "Improved Alpha Testing Using Hashed Sampling."
• [2016] "Frustum-Traced Irregular Z-Buffers: Fast, Sub-pixel Accurate Hard Shadows."
• [2010] "The General Pinhole Camera: Effective and Efficient Non-Uniform Sampling for Visualization."    [ 21 citations ]
• [2010] "Interactive Indirect Illumination Using Adaptive Multiresolution Splatting."    [ 35 citations ]
• [2006] "Interactive Display of Isosurfaces with Global Illumination."    [ 42 citations ]

Papers in Eurographics Computer Graphics Forum (and equiv. conferences, e.g., EG, EGSR, PG):

• [2025] "Many-Light Rendering Using ReSTIR-Sampled Shadow Maps."
• [2010] "Interactive, Multiresolution Image-Space Rendering for Dynamic Area Lighting."    [ 42 citations ]
• [2009] "Hierarchical Image-Space Radiosity for Interactive Global Illumination."    [ 84 citations ]
• [2009] "Adaptive Caustic Maps Using Deferred Shading."    [ 52 citations ]
• [2007] "The Soft Shadow Occlusion Camera."    [ 13 citations ]
• [2004] "Interactive Caustics Using Local Precomputed Irradiance."    [ 23 citations ]
• [2003] "Penumbra Maps: Approximate Soft Shadows in Real-Time."    [ 102 citations ]

Papers in ACM Symposium on Interactive 3D Graphics:

• [2017] "Hashed Alpha Testing."    [ 17 citations ]
• Best Paper
  [2015] "Frustum-Traced Raster Shadows: Revisiting Irregular Z-Buffers."    [ 27 citations ]
• [2014] "Adaptive Depth Bias for Shadow Maps."    [ 21 citations ]
• One of Best Papers
  [2009] "Multiresolution Splatting for Indirect Illumination."    [ 107 citations ]
• [2008] "Hierarchical Caustic Maps."    [ 51 citations ]
• [2006] "Interactive Image-Space Techniques for Approximating Caustics."    [ 100 citations ]

Papers in ACM/EG Conference on High Performance Graphics:

• [2021] "Rearchitecting Spatiotemporal Resampling for Production."    [ 15 citations ]
• [2018] "Correlation-Aware Semi-Analytic Visibility for Antialiased Rendering."
• Best Paper
  [2017] "Spatiotemporal Variance-Guided Filtering: Real-time Reconstruction for Path Traced Global Illumination."    [ 234 cites ]
• 2nd Best Paper
  [2016] "Exploring and Expanding the Continuum of OIT Algorithms."    [ 28 citations ]
• 3rd Best Paper
  [2015] "Decoupled Coverage Anti-Aliasing."    [ 11 citations ]
• [2013] "Imperfect Voxelized Shadow Volumes."    [ 12 citations ]
• 3rd Best Paper
  [2011] "Voxelized Shadow Volumes."    [ 35 citations ]

US Patents: (Note: Google's patent citations can have extreme temporal variance; values likely only representative)

• [2025] "Illumination resampling using temporal gradients in light transport simulation systems and applications," US Patent #12,437,371.
• [2025] "Initial candidates in spatiotemporal resampling," US Patent #12,361,635.
• [2025] "Using importance resampling to reduce the memory incoherence of light sampling," US Patent #12,361,633.
• [2025] "Grid-based light sampling for ray tracing applications," US Patent #12,299,801.
• [2024] "Spatiotemporal resampling with decoupled shading and reuse," US Patent #11,948,246.
• [2024] "Projective hash maps," US Patent #11,925,860.
• [2024] "Reflection denoising in ray-tracing applications," US Patent #11,941,745.
• [2024] "Asynchronous lighting for image illumination," US Patent #11,922,567.
• [2023] "Using importance resampling to reduce the memory incoherence of light sampling," US Patent #11,663,773.
• [2022] "Reflection denoising in ray-tracing applications," US Patent #11,373,359.
• [2022] "Reservoir-based spatiotemporal importance resampling utilizing a global illumination data structure," US Patent #11,315,310.
• [2022] "Photon-based image illumination rendering," US Patent #11,295,515.
• [2020] "Reflection denoising in ray-tracing applications," US Patent #10,776,985.    [ 46 citations ]
• [2020] "Image illumination rendering system and method," US Patent #10,713,838.    [ 19 citations ]
• [2020] "Performing spatiotemporal filtering," US Patent #10,600,167.    [ 19 citations ]
• [2019] "Perceptually-based foveated rendering using a contrast-enhancing filter," US Patent #10,438,400.    [ 93 citations ]
• [2019] "System and method for generating temporally stable hashed values," US Patent #10,417,813.    [ 13 citations ]
• [2018] "Frustum tests for sub-pixel shadow," US Patent #10,055,883.    [ 10 citations ]
• [2018] "System, method, and computer program product for computing indirect lighting in a cloud network," US #10,008,034.    [ 50 citations ]
• [2017] "System, method, and computer program product for shading using a dynamic object-space grid," US #9,754,407.    [ 138 citations ]
• [2017] "System, method, and computer program for performing object-space shading," US Patent #9,747,718.    [ 145 citations ]

Other journal publications:

• [2017] "Generating Stratified Random Lines in a Square," JCGT.
• [2015] "CloudLight: A System for Amortizing Indirect Lighting in Real-Time Rendering," JCGT.    [ 47 citations ]
• [2014] "Adaptive Depth Bias for Shadow Maps," JCGT.    [ 21 citations ]
• [2013] "Simple Analytic Approximations to the CIE XYZ Color Matching Functions," JCGT.    [ 133 citations ]
• 2nd Best Paper
  [2011] "Non-Pinhole Approximations for Interactive Rendering," IEEE CG&A.    [ 13 citations ]
• [2008] "Reducing Noise in Image-Space Caustics with Variable-Sized Splatting," JGT.    [ 24 citations ]

Other conference publications:

• [2013] "Efficient Rendering of Anatomical Tree Structures Using Geometric Proxy," ISBI.
• [2010] "Interactive Visualization of Hospital Contact Network Data on Multi-touch Displays," MexiHC.    [ 11 citations ]
• [2008] "Interactive Volumetric Shadows in Participating Media with Single-Scattering," IRT.    [ 56 citations ]
• [2007] "Interactive Refractions with Total Internal Reflection," GI.    [ 49 citations ]
• [2005] "Interactive Image-Space Refraction of Nearby Geometry," GRAPHITE.    [ 81 citations ]

My Dissertation:

• [2004] "Fast Local Approximation to Global Illumination."

Peer-Reviewed Book Chapters:

• [2021] "The Alias Method for Sampling Discrete Distributions," in Ray Tracing Gems II (APress).
• [2021] "Rendering Many Lights with Grid-Based Reservoirs," in Ray Tracing Gems II (APress).    [ 19 citations ]
• [2021] "Weighted Reservoir Sampling: Randomly Sampling Streams," in Ray Tracing Gems II (APress).
• [2019] "Introduction to DirectX Raytracing," in Ray Tracing Gems (APress).    [ 49 citations ]
• [2010] "Fast, Stencil-Based Multiresolution Splatting for Indirect Illumination," in GPU Pro (AK Peters).
• [2009] "A Hybrid Method for Interactive Shadows in Homogeneous Media," in ShaderX⁷ (Charles River Media).
• [2007] "Interactive Refractions and Caustics Using Image-Space Techniques," in ShaderX⁵ (Charles River Media).

ACM SIGGRAPH Emerging Technologies Exhibits:

• Laval Virtual Award
  [2016] "Perceptually-Based Foveated Virtual Reality," SIGGRAPH Emerging Technologies.    [ 150 citations ]

ACM SIGGRAPH and ACM SIGGRAPH Asia Courses and Course Presentations:

• [2023] "A Gentle Introduction to ReSTIR: Path Reuse in Real-Time," SIGGRAPH Courses. ( Organizer, Speaker )
• [2019] "Open Problems in Real-Time Rendering," SIGGRAPH Courses. ( Speaker )
• [2019] "Introduction to Real-Time Ray Tracing," SIGGRAPH Courses. ( Speaker )
• [2018] "Introduction to DirectX Raytracing," SIGGRAPH Courses. ( Organizer, Speaker )
• [2015] "An Overview of Next-Generation Graphics APIs," SIGGRAPH Courses. ( Organizer )
• [2012] "Basics of Physically-Based Rendering," SIGGRAPH Asia Courses.    [ 12 citations ]
• [2011] "State of the Art: Interactive Global Illumination," SIGGRAPH Courses. ( Course Speaker )

ACM SIGGRAPH and ACM SIGGRAPH Asia Talks and Sketches:

• [2016] "HFTS: Hybrid Frustum-Traced Shadows in 'The Division'," SIGGRAPH Talks.
• [2016] "Stochastic Layered Alpha Blending," SIGGRAPH Talks.
• [2015] "Frustum-Traced Irregular Z-Buffers: Fast, Sub-pixel Accurate Hard Shadows," SIGGRAPH Talks.
• [2013] "Imperfect Voxelized Shadow Volumes," SIGGRAPH Talks.
• [2013] "Interactive Indirect Lighting Computed In The Cloud," SIGGRAPH Talks.
• [2010] "Interactive Voxelized Epipolar Shadow Volumes," SIGGRAPH Asia Sketches.

Other Conference Presentations:

• [2015] "High-Quality Rasterization," GPU Technology Conference Talks.

Posters and Similar Presentations:

• [2021] "Rendering of Many Lights with Grid-Based Reservoirs," I3D Posters.
• [2013] "Towards Efficient and Accurate Order-Independent Transparency," SIGGRAPH Posters.
• [2013] "A Novel Optimization and Application of Order-Independent Transparency," GPU Technology Conference Posters.
• [2012] "Real-Time Rough Refraction via LEAN Mapping and Gaussian Sum Reduction," I3D Posters.
• [2010] "Cellular-Level To Biomass Eidomics Simulation for Hypothesis Generation in Lung Cancer," Thoracic Soc. Int'l Posters.
• [2010] "Direct Illumination from Dynamic Area Lights With Visibility," I3D Posters.
• [2010] "Voxel-Space Ambient Occlusion," I3D Posters.    [ 10 citations ]
• [2009] "Direct Illumination from Dynamic Area Lights," SIGGRAPH Posters.
• [2007] "Interactive Backprojected Soft Shadows with an Occlusion Camera Shadow Map," SIGGRAPH Posters.
• [1997] "A Cooperative Multi-Robot Approach to the Mapping and Exploration of Mars," AAAI Mobile Robot Competition.