Research Areas

Esports

Associated Publications

2026

Impact of Graphical Fidelity and Frame-Time Stutter in a First-Person Shooter Game
Samin Shahriar Tokey, Ben Boudaoud, Joohwan Kim, Josef Spjut, Peter Xenopoulos, Mark Claypool
ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games (I3D)
TimeOmni-1: Incentivizing Complex Reasoning with Time Series in Large Language Models
Tong Guan, Huck Yang, Sabato Marco Siniscalchi, Qingsong Wen, Ming Jin, Shirui Pan
ICLR

2025

Timing Matters: The Impact of Event-Specific Frametime Spikes in First-Person Shooter Games
Samin Shahriar Tokey, Ben Boudaoud, Joohwan Kim, Josef Spjut, Mark Claypool
2025 17th International Conference on Quality of Multimedia Experience (QoMEX)
Lead Rush: A First-Person Shooter for User Studies and Understanding Effects of Frame Time Spikes
Samin Shahriar Tokey, Ben Boudaoud, Joohwan Kim, Josef Spjut, Peter Xenopoulos, Mark Claypool
2025 17th International Conference on Quality of Multimedia Experience (QoMEX)
Esports Rendering: Industry and Player Perspectives
Josef Spjut, Benjamin Watson
SIGGRAPH 2025 Frontiers
Toward Understanding Display Size for FPS Esports Aiming
Arjun Madhusudan, Josef Spjut, Benjamin Watson, Seth Schneider, Ben Boudaoud, Joohwan Kim
Foundations of Digital Games
Modeling Visually-Guided Aim-and-Shoot behavior in First-Person Shoters
June-Seop Yoon, Hee-Seung Moon, Ben Boudaoud, Josef Spjut, Iuri Frosio, Byungjoo Lee, Joohwan Kim
International Journal of Human-Computer Studies
Pushing the Limits? Frame Rate Benefits to Players for up to 500 Hz in First Person Shooter Games
Samin Shahriar Tokey, Ben Boudaoud, Joohwan Kim, Josef Spjut, Mark Claypool
Network and Operating System Support for Digital Audio and Video

2024

Learning to Move Like Professional Counter-Strike Players
David Durst, F. Xie, V. Sarukkai, Brennan Shacklett, Iuri Frosio, Chen Tessler, Joohwan Kim, C. Taylor, G. Bernstein, S. Choudhury, P. Hanrahan,, Kayvon Fatahalian
The 23rd ACM SIGGRAPH / Eurographics Symposium on Computer Animation (SCA 2024)
Variable Frame Timing Affects Perception of Smoothness in First-Person Gaming
Devi Klein, Josef Spjut, Ben Boudaoud, Joohwan Kim
IEEE Conference on Games (CoG)
On Smoothly Varying Frame Timing in First-Person Gaming
UC Santa Barbara and NVIDIA, Josef Spjut, Ben Boudaoud, Joohwan Kim
ACM SIGGRAPH Talks
Studying Esports Competition: Piloting Methodology for User Studies During Tournaments
Arjun Madhusudan, Josef Spjut, Ben Boudaoud, Joohwan Kim, Benjamin Watson
ACM SIGGRAPH Talks
The Effects of Network Latency on the Peeker's Advantage in First-person Shooter Games
Samin Shahriar Tokey, Zesheng Chen, Colin Mettler, Dexuan Tang, Ben Boudaoud, Joohwan Kim, Josef Spjut, Mark Claypool
Foundations of Digital Games
Do Action Video Game Players Search Faster Than Non-Players?
Zoe (Jing) Xu, Josef Spjut, Ben Boudaoud, Simona Buetti, Alejandro Lleras, Ruth Rosenholtz
Vision Sciences Society
Is Less More? Rendering for Esports
Benjamin Watson, Josef Spjut, Joohwan Kim, Byungjoo Lee, Mijin Yoo, Peter Shirley, Rulon Raymond
IEEE Computer Graphics and Applications

2023

Constant Field of View Display Size Effects on First-Person Aiming Time
Josef Spjut, Ben Boudaoud, Joohwan Kim
Frontiers in Optics 2023
Rethinking Display Requirements for Esports and High Interactivity Applications
Joohwan Kim, Josef Spjut, Ben Boudaoud, Benjamin Watson, Turner Whitted
SID
Less is More: Rendering for Esports
Benjamin Watson, Joohwan Kim, Josef Spjut, Peter Shirley, Byungjoo Lee
SIGGRAPH Frontiers Workshop
Mouse Sensitivity in First-person Targeting Tasks
Ben Boudaoud, Josef Spjut, Joohwan Kim
IEEE Transactions on Games

2022

Display Size and Targeting Performance: Small Hurts, Large May Help
Joohwan Kim, Arjun Madhusudan, Benjamin Watson, Ben Boudaoud, Roland Tarrazo, Josef Spjut
SIGGRAPH Asia 2022
Esports and expertise: what competitive gaming can teach us about mastery
Ben Boudaoud, Josef Spjut, Joohwan Kim, Arjun Madhusudan, Benjamin Watson
ACM Interactions
Mouse Sensitivity in First-person Targeting Tasks
Ben Boudaoud, Josef Spjut, Joohwan Kim
IEEE Conference on Games
The Esports Frontier: Rendering, Interaction and Display
Benjamin Watson, Josef Spjut, Byungjoo Lee, Greg Ward
SIGGRAPH Frontiers Workshop
FirstPersonScience: An Open Source Tool for Studying FPS Esports Aiming
Ben Boudaoud, Josef Spjut, Pyarelal Knowles, Arjun Madhusudan, Joohwan Kim
SIGGRAPH Talks
Image Features Influence Reaction Time: A Learned Probabilistic Perceptual Model for Saccade Latency
Budmonde Duinkharjav, Praneeth Chakravarthula, Rachel Brown, Anjul Patney, Qi Sun
ACM Transactions on Graphics (Proceedings of SIGGRAPH 2022)
Best Technical Paper, SIGGRAPH 2022
Esports meets human-computer interaction
Simone Kriglstein, Anna Lisa Martin-Niedecken, Josef Spjut, Nicole B. Damen, Selen Turkay, Anders Drachen
ACM Interactions

2021

Gaming at Warp Speed: Improving Aiming with Late Warp
Ben Boudaoud, Pyarelal Knowles, Joohwan Kim, Josef Spjut
SIGGRAPH Emerging Technologies
Weakly-Supervised Physically Unconstrained Gaze Estimation
Rakshit Kothari, Shalini De Mello, Umar Iqbal, Wonmin Byeon, Seonwook Park, Jan Kautz
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2021
Oral
A Case Study of First Person Aiming at Low Latency for Esports
Josef Spjut, Ben Boudaoud, Joohwan Kim
Esports and High Performance HCI Workshop
Robust Vision-Based Cheat Detection in Competitive Gaming
Aditya Jonnalagadda, Iuri Frosio, Seth Schenider, Morgan McGuire, Joohwan Kim
I3D ’21

2020

Post-Render Warp with Late Input Sampling Improves Aiming Under High Latency Conditions
Joohwan Kim, Pyarelal Knowles, Josef Spjut, Ben Boudaoud, Morgan McGuire
High Performance Graphics 2020

2019

Latency of 30 ms Benefits First Person Targeting Tasks More Than Refresh Rate Above 60 Hz
Josef Spjut, Ben Boudaoud, Kamran Binaee, Jonghyun Kim, Zander Majercik, Morgan McGuire, David Luebke, Joohwan Kim
Siggraph Asia Technical Briefs
FirstPersonScience: Quantifying Psychophysics for First Person Shooter Tasks
Josef Spjut, Ben Boudaoud, Kamran Binaee, Zander Majercik, Morgan McGuire, Joohwan Kim
UCI Esports Conference
Esports Arms Race: Latency and Refresh Rate for Competitive Gaming Tasks
Joohwan Kim, Josef Spjut, Morgan McGuire, Zander Majercik, Ben Boudaoud, Rachel Albert, David Luebke
Journal of Vision
Temporally Dense Ray Tracing
Pontus Ebelin, Jim Nilsson, Marco Salvi, Josef Spjut, Tomas Akenine-Möller
High Performance Graphics 2019

Researchers

Ben Boudaoud
Joohwan Kim
Josef Spjut
Peter Xenopoulos