About

Dr. Victor Zordan is an (adjunct) research faculty in Visual Computing within the School of Computing at Clemson University. Victor also works full time as a Principle Research Scientist at Roblox. Victor works on developing techniques in graphics, fabrication, and animation with focii in physically based modeling, interfaces, and human animation. He has been an enthusiast and graphics programmer for 25 years and a researcher investigating animation techniques for more than twenty. His interests are in physical simulation, motion capture, and algorithms used to create believable (and unbelievable) motion and to explore novel uses for animation in electronic games, medical and training applications, and virtual worlds. Dr. Zordan received his PhD from Georgia Tech at GVU. Dr. Victor Zordan is former faculty in the department of Computer Science and Engineering at University of California Riverside where he directed the Riverside Graphics Lab. He also worked at Clemson as director for the DPA program until 2021 and chair for the division of Visual Computing until he left for Roblox in 2022.

Select Research Projects

Publications

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Conferences

public P. Boursin, Y. Kedadry, V. Zordan, P. Kry, M.P. Cani. ReGAIL: Toward Agile Character Control from a Single Reference Motion, ACM SIGGRAPH Conference on Motion, Interaction, and Games (MIG), 2024.
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public H. Shi, V. Zordan, Y. Yang, S. Andrews. Adaptive Distributed Simulation of Fluids and Rigid Bodies, ACM SIGGRAPH Conference on Motion, Interaction, and Games (MIG), 2024.
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public O. Benchekroun, K. Xie, D. Liu, E. Grinspun, S. Andrews, V. Zordan. Actuators A La Mode: Modal Actuations for Soft Body Locomotion, ACM SIGGRAPH Asia 2024 Conference Papers, 2024.
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public D. Liu, M. Agrawala, C. Yuksel, T. Omernick, V. Misra, S. Corazza, M. McGuire, V. Zordan. A Unified Differentiable Boolean Operator with Fuzzy Logic, ACM SIGGRAPH 2024 Conference Papers, 2024.
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public C. Lao, Y. Zhang, D. Vogel, C. Kaplan, M. McGuire, V. Zordan. A Preliminary Study of World Customizability for Virtual Reality Co-Play, ACM CHI Conference on Human Factors in Computing Systems Extended Abstract, 2023.
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public L. Dugan, A. Wadhawan, K. Spence, C. Callison-Burch, M. McGuire, V. Zordan. Learning When to Speak: Latency and Quality Trade-offs for Simultaneous Speech-to-Speech Translation with Offline Models, Interspeech, 2023.
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public I. Navarro, D. Kneubuehler, T. Verhulsdonck, E. Du Bois, W. Welch, C. Shang, I. Sachs, M. Mcguire, V. Zordan, K. Bhat. Audiovisual Inputs for Learning Robust, Real-time Facial Animation with Lip Sync, ACM SIGGRAPH Conference on Motion, Interaction, and Games (MIG), 2023.
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public N. Kalyanasundaram, D. Rohmer, V. Zordan. Acceleration Skinning: Kinematics-Driven Cartoon Effects for Articulated Characters, Graphics Interface, 2022. (BEST PAPER)
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public A. Sati, I. Karamouzas, V. Zordan, DIGISEW: Anisotropic Stitching for Variable Stretch in Textiles, ACM Siggraph Symposium on Computational Fabrication (SCF), 2021.
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public A. Ranganath, A. Biswas, I. Karamouzas, V. Zordan, Motor Babble: Morphology-Driven Coordinated Control of Articulated Characters, ACM Siggraph Symposium on Motion, Interaction & Games (MIG) (BEST PAPER), 2021.
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public Nche, O. M., Boulware, R., Che, S. M., Kraemer, E. T., Sitaraman, M., Zordan, V., Basic Code Understanding Challenges for Elementary School Children, 2020 Research on Equity and Sustained Participation in Engineering, Computing, and Technology (RESPECT), pp. 1-2, 2020.
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public Ranganath, A., Xu, P., Karamouzas, I., Zordan, V., Low Dimensional Motor Skill Learning Using Coactivation, In Motion, Interaction and Games (MIG '19), Association for Computing Machinery, New York, NY, USA, Article 20, pp. 1-10, 2019.
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public Nche, O. M., Welter, J., Che, M., Kraemer, E. T., Sitaraman, M., Zordan, V., CodeTracesure-Combining Gaming, CS Concepts, and Pedagogy, 2019 Research on Equity and Sustained Participation in Engineering, Computing, and Technology (RESPECT), pp. 1-2, 2019.
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public Bermudez, L., Borisko, S., Mcaninch, E., Smith, C., Kuksenok, O., Zordan, V., Simulated fatigue and wrinkle synthesis for clothing appearance design, 2019 (Technical Brief).
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public Nche, O. M., Colbert-Bucsh, E., Sitaraman, M., Zordan, V., Presenting CS Concepts through Multiple Representations to Engage African-American Elementary School Children, In CoNECD. ASEE, 2019.
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public Bermudez, L., Tessendorf, J., Zimmermann, D., Zordan, V., Real-time locomotion with character-fluid interactions, In Proceedings of the 11th Annual International Conference on Motion, Interaction, and Games (MIG '18). Association for Computing Machinery, New York, NY, USA, Article 18, pp. 1-8, 2018.
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public Moore, E., Porter, M., Karamouzas, I., Zordan, V., Precision control of tensilie properties in fabric for computationsl fabrication, ACM SIGGRAPH Symposium on Computational Fabrication (SCF), 2018.
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public Zordan, V., Welter, J., Hindlekar, S., Smith, J. E., McKay, W. G., Lowe, K., Marti, C., Taylor, R., MechVR: a physical proxy for locomotion and interation in a virtual environment, ACM SIGGRAPH Symposium on Motion in Games (MIG), 2017.
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public Lixandru, E., Zordan, V., Physical rig for first-person, look-at cameras in video games, ACM SIGGRAPH Symposium on Motion in Games (MIG), 2014.
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public Brown, D., Macchietto, A., Yin, K. K., Zordan, V., Control of Rotational Dynamics for Ground Behaviors, ACM SIGGRAPH/Eurographics Symposium on Computer Animation (SCA), 2013. (BEST PAPER)
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public Wheatland, N., Joerg, S., Zordan, V., Automatic hand-over animation using Principle Component Analysis, ACM SIGGRAPH Symposium on Motion in Games (MIG), 2013.
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public Nguyen, N., Arista, R., Liu, K. C., Zordan, V., Adaptive Dynamics with Hybrid Response, SIGGRAPH Asia, 2012 (Technical Brief).
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public Kang, C., Wheatland, N., Neff, M., Zordan, V., Automatic hand-over animation for free-hand motions from low resolution input, ACM SIGGRAPH Symposium on Motion in Games (MIG), 2012.
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public Nunes, R., Cavalcante-Neto, J., Vidal, C., Kry, P., Zordan, V., Using Natural Vibrations to Guide Control for Locomotion, ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games (I3D), 2012.
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public Liu, C. K., Zordan, V., Natural User Interface for Character Animation, Motion in Games (MIG), 2011.
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public Wu, C. C., Zordan, V., Goal-Directed Stepping with Momentum Control, ACM SIGGRAPH/Eurographics Symposium on Computer Animation (SCA), 2010.
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public Nguyen, N., Wheatland, N., Brown, D., Parise, B., Liu, C. K., Zordan, V., Performance capture with physical interaction, ACM SIGGRAPH/Eurographics Symposium on Computer Animation (SCA), 2010.
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public Zordan, V., Angular Momentum Control in Coordinated Behaviors, Third Annual International Conference on Motion in Games (MIG), 2010.
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public Sanders, B., DiLorenzo, P., Zordan, V., Bakal, D., Toward Anatomical Simulation for Breath Retraining in Mind/Body Medicine, Workshop on 3D Physiological Human, 2008.
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public Nunes, R., Vidal, C., Cavalcante-Neto, J., Zordan, V., Simple Feedforward Control for Responsive Motion Capture-Driven Simulations, International Symposium on Visual Computing (ISVC), 2008.
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public Wu, C. C., Medina, J. , Zordan, V., Simple Steps for Simply Stepping, International Symposium on Visual Computing (ISVC), 2008.
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public Nunes, R., Vidal, C., Cavalcante-Neto, J., Zordan, V., Simulando Reacoes Flexiveis em Movimentos Capturados (in Portuguese), Symposium on Virtual and Augmented Reality (SVR), 2008.
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public Chiu, B., Zordan, V., Wu, C. C., State-Annotated Motion Graphs, ACM Virtual Reality Software and Technology (VRST), 2007.
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public Zordan, V., Macchietto, A., Medina, J., Soriano, M., Wu, C. C., Metoyer, R., Rose, R., Anticipation from Example, ACM Virtual Reality Software and Technology (VRST), 2007.
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public Yankov, D., Keogh, E., Medina, J., Chiu, B., Zordan, V., Detecting Motifs Under Uniform Scaling, SIGKDD, 2007.
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public Zordan, V., Macchietto, A., Medina, J., Soriano, M., Wu C. C., Interactive Dynamic Response for Games, ACM SIGGRAPH Sandbox Symposium, 2007.
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public Soriano, M., Wu C. C., Macchietto, A., Medina, J., Zordan, V., Interactive Dynamic Response for Games, ACM SIGGRAPH/Eurographics Symposium Computer Animation (SCA) - Poster, 2007.

public Nguyen, N., Sundararajan, V., Zordan, V., Motion Classification Using Wireless Sensors for Activity Monitoring in Firefighting, ASME/IEEE International Conference on Mechatronic and Embedded Systems and Applications (MESA), 2007.
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public Matsunaga, M., Zordan, V., A Dynamics-based Comparison Metric for Motion Graphs, Computer Graphics International (CGI), 2007.
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public Matsunaga, M., Zordan, V., A Dynamics-based Comparison Metric for Motion Graphs, I3D poster, 2007. (awarded BEST "student poster" - 2nd place)

public Metoyer, R. A., Zordan, V., Hermens, B., Wu, C. C., Soriano, M., Technical Sketch: Anticipating Impacts, ACM SIGGRAPH, 2006.
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public Majkowska, A., Zordan, V., Faloutsos, P., Automatic Splicing for Hand and Body Animations, ACM SIGGRAPH/Eurographics Symposium on Computer Animation (SCA), 2006.
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public Majkowska, A., Zordan, V., Faloutsos, P., Technical Sketch: Automatic Splicing for Hand and Body Animations, ACM SIGGRAPH, 2006.
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public Pollard, N. S., Zordan, V., Physically Based Grasping Control from Example, ACM SIGGRAPH/Eurographics Symposium on Computer Animation (SCA), 2005.
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public Zordan, V., Celly, B., Chiu, B., Dilorenzo, P. C., Breathe Easy: Model and control of human respiration for computer animation, ACM SIGGRAPH/Eurographics Symposium on Computer Animation (SCA), pp. 29-37, 2004.
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public Zordan, V., Celly, B., Chiu, B., Dilorenzo, P. C., Technical Sketch: Model and control of simulated respiration for animation, Visual Proceedings of ACM SIGGRAPH 2004, Los Angeles, California, 2004.
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public DiLorenzo, P. C., Zordan, V., Tran, D., Interactive animation of cities over time, 17th International Conference on Computer Animation and Social Agents (CASA), Geneva, Switzerland, 2004.
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public Celly, B., Zordan, V., Animated People Textures, 17th International Conference on Computer Animation and Social Agents (CASA), Geneva, Switzerland, 2004.
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public Keogh, E., Palpanas, T., Zordan, V., Gunopulos, D. Cardle, M., Indexing Large Human-Motion Databases. In Proceedings of the 30th International Conference on Very Large Data Bases (VLDB), Toronto, Canada, 2004.
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public Keogh, E., Celly, B., Ratanamahatana, C. A., Zordan, V., A Novel Technique for Indexing Video Surveillance Data. ACM SIGMM 2003 Workshop on Video Surveillance, in conjunction with eleventh ACM International Conference on Multimedia, 2003.
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public Zordan, V., Horst, N. C., Mapping optical motion capture data to skeletal motion using a physical model, ACM SIGGRAPH Symposium on Computer Animation, 2003.
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public Zordan, V., Hodgins, J. K., Motion capture-driven simulations that hit and react, ACM SIGGRAPH Symposium on Computer Animation, 2002.
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public Mataric, M. J., Jenkins, O. C., Fod, A., Zordan, V., Control and Imitation in Humanoids, AAAI Fall Symposium on Simulating Human Agents, North Falmouth, MA, 2000.
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public Zordan, V., Hodgins, J. K., Tracking and Modifying Upper-body Human Motion Data with Dynamic Simulation, Computer Animation and Simulation '99, Eurographics Animation Workshop, Springer-Verlag, Wien, pp. 13-22, 1999.
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public Zordan, V., Hodgins, J. K., Technical Sketch: Tracking Human Motion Data with Dynamic Simulation, Visual Proceedings of ACM SIGGRAPH 1999, Los Angeles, California, 1999.

public Mataric, M. J., Zordan, V., Mason, Z., Movement Control Methods for Complex, Dynamically Simulated Agents: Adonis Dances the Macarena, In Proceedings of Autonomous Agents '98, Minneapolis/St. Paul, pp. 317-324, 1998.
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public Hodgins, J. K., O'Brien, J. F., Zordan, V., Technical Sketch: Combining Active and Passive Simulations for Secondary Motion, Visual Proceedings of ACM SIGGRAPH 1997, Los Angeles, California, 1997.
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Journals

school P. Xu, K. Xie, S. Andrews, P. Kry, M. Neff, M. McGuire, I. Karamouzas, V. Zordan. AdaptNet: Policy adaptation for physics-based character control, ACM SIGGRAPH Transactions on Graphics (TOG), 2023.
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school K. Xie, P. Xu, S. Andrews, V. Zordan, P. Kry.Too stiff, too strong, too smart: Evaluating fundamental problems with motion control policies, Proceedings of the ACM on Computer Graphics and Interactive Techniques (SCA), 2023.
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school P. Xu, X. Shang, V. Zordan, I. Karamouzas. Composite motion learning with task control, ACM SIGGRAPH Transactions on Graphics (TOG), 2023.
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school P. Schreiner, M. Perepichka, H. Lewis, S. Darkner, P. Kry, K. Erleben, V. Zordan, Global Position Prediction for Interactive Motion Capture, Proceedings of the ACM on Computer Graphics and Interactive Techniques (SCA), 2021.
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school Rohmer, D., Tarini, M., Kalyanasundaram, N., Moshfeghifar, F., Cani, M., Zordan, V., Velocity Skinning for Real-time Stylized Skeletal Animation, Computer Graphics Forum, 40: pp. 549-561, 2021. (BEST PAPER HONORABLE MENTION)
PDF Movie Bibtex Demo

school Akbay, M., Nobles, N., Zordan, V., Shinar, T., An Extended Partitioned Method for Conservative Solid-Fluid Coupling, SIGGRAPH 2018, ACM Transactions on Graphics, Vol. 37, No. 4, Article 86, 2018.
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school da Silva, D., Nunes, R., Vidal, C., Cavalcante-Neto, J., Kry, P., Zordan, V., Tunable Robustness: An Artificial Contact Strategy with Virtual Actuator Control for Balance, Computer Graphics Forum, 2017.
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school Segre, P., Dakin, R., Zordan, V., Dickinson, M., Straw, A., Altshuler, D., Burst muscle performance predicts the speed, acceleration, and turning performance of Annas hummingbirds, eLife, 2015.
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school Wheatland, N., Wang, Y., Song, H., Neff, M., Zordan, V., Joerg, S., State of the Art in Hand and Finger Modeling and Animation, Computer Graphics Forum, 2015.
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school Deveau, J., Jaeggi, S., Zordan, V., Phung, C., Seitz, A., How to build better memory training games, Frontiers in Systems Neuroscience, 2015.
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school Zordan, V., Brown, D., Macchietto, A., Yin, K., Control for Rotation Dynamics for Ground and Aerial Behaviors, IEEE Transactions on Visualization and Computer Graphics (TVCG), 2014.
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school Macchietto, A., Zordan, V., Shelton, C., Momentum Control for Balance, Transactions on Graphics/ACM SIGGRAPH, 2009.
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school Ishigaki S., White T., Zordan V., Liu K. C., Performance-Based Control Interface for Character Animation, Transactions on Graphics/ACM SIGGRAPH, 2009.
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school DiLorenzo, P., Zordan, V., Sanders, B., Laughing Out Loud: Control for Modeling Anatomically Inspired Laughter using Audio, Transactions on Graphics/ACM SIGGRAPH Asia, 2008.
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school Metoyer, R. A., Zordan, V., Hermens, B., Wu, C. C., Soriano, M., Psychologically inspired anticipation and dynamic response for impacts to the head and upper body, Transactions on Visual Computing and Graphics (TVCG), 2007.
PDF Movie Bibtex

school Zordan, V., Majkowska, A., Chiu, B., Fast, M., Dynamic Response for Motion Capture Animation, Transactions on Graphics/ACM SIGGRAPH, 2005.
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school Zordan, V., Celly, B., Chiu, B., Dilorenzo, P. C., Breathe Easy: Model and control of human respiration for computer animation, Graphical Models, 2005.
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school O'Brien, J. F., Zordan, V., Hodgins, J. K., Combining Active and Passive Simulations for Secondary Motion, IEEE: Computer Graphics and Applications, Vol. 20, No. 6, pp. 86-96, 2000.
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school Mataric, M. J., Zordan, V., Williamson, M. M., Making Complex Articulated Agents Dance: an analysis of control methods drawn from robotics, animation, and biology, Autonomous Agents and Multi-Agent Systems, 2(1), pp. 23-44, 1999.
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Other

star K. Salem, D. Rohmer, N. Kalyanasundaram, V. Zordan, Art-directable expressive oscillation behavior for rigged characters, Poster, ACM SIGGRAPH/Eurographics Symposium on Computer Animation (SCA), 2024. (BEST POSTER)


star M. Kapadia, V. Zordan, T. Sanoki, K. Mitchell, I. Sachs, V. Virma, A. Ghosh, M. Laattala, Expressive Avatar Interactions in Online Co-Experiences, Frontiers Workshop, ACM SIGGRAPH, 2023.


star L. Cheatham, C. Kang, D. Pimental, M. Soeth, B. Crosier, V. Zordan, Beyond IRL, How 3D Interactive Social Media is Changing How We Interact, Express, and Think, Frontiers Workshop, ACM SIGGRAPH, 2023.


star V. Zordan, L. Cheatham, J. Bailenson, B. Rosenblum, A. Ganguly, Frontiers Discussion of the Metaverse: Hype or Destiny?, Frontiers Workshop, ACM SIGGRAPH, 2022.


star P. Segre, R. Dakin, V. Zordan, M. Dickinson, A. Straw, D. Altshuler, Data from: burst muscle performance predicts the speed, acceleration, and turning performance of Anna's hummingbirds, Scholars Portal Dataverse, 2021.


star Jörg, S., Ye, Y., Mueller, F., Neff, M., and Zordan, V. Virtual hands in VR: motion capture, synthesis, and perception, Course ACM SIGGRAPH, 2020.


star A. Biswas, I. Karamouzas, V. Zordan, Reinforcement learning for automatic motion synthesis in dancing characters, ACM Siggraph Symposium on Motion, Interaction & Games (MIG) 2022. (BEST POSTER)


star Jörg, S., Ye, Y., Mueller, F., Neff, M., and Zordan, V. Virtual hands in VR: motion capture, synthesis, and perception, In SIGGRAPH Asia 2020 Courses (SA '20). Association for Computing Machinery, New York, NY, USA, Article 2, pp. 1-32, 2020.
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star Hindlekar, S., Zordan, V., Smith, J. E., Welter, J., Mckay, W. G., MechVR: interactive VR motion simulation of "Mech" biped robot, ACM SIGGRAPH 2016, VR VILLAGE, 2016.
PDF Movie Bibtex

star Keogh, E., Lonardi, S., Zordan, V., Lee, S., Jara, M., Visualizing the similarity of human and chimp DNA, (Multimedia Video), 2005.
Movie

star Hodgins J. K., O'Brien J. F., Pollard N. S., Sumner, R. W., Wooten, W. L., Yngve, G. D., Zordan V., Creating Realistic Motion, In Joseph D. Anderson and Barbara Fisher Anderson (eds.), Moving Image Theory: Ecological Considerations, Carbondale: Southern Illinois University Press, 2005.
eBook Bibtex

star Zordan, V., Simulating Upper-body Intensive Activities from Human Motion Examples (course notes and lecture), Animating Humans by Combining Simulation and Motion Capture SIGGRAPH 2000, Course Notes Vol. 33, pp. 41-49, 2000.
star Zordan, V., Pollard, N. S., Hodgins, J. K., et al., Alien Occurrence, (computer generated animation, QT video 1:50 minutes, 50M), Presented at LCC's Video Opticon 98 at Georgia Tech, 1998.

star Hodgins, J. K., Wooten, W. L., Zordan, V., et al., Atlanta in Motion, (computer generated animation, QT video 1 minute, 24M), Presented in the Electronic Theater at SIGGRAPH, 1996.
Movie

star O'Brien, J. F., Zordan, V., Hodgins, J. K., Comparison of Real and Simulated Basketball Net, (computer generated image), ACM SIGGRAPH '98 technical slide set, Computer Graphics, 1998.

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