Publications

Below is a list of my publications (grouped by topic, newest first). Click on a title or image for more information, including download links for the papers and their presentations.

Note that some preview images are associated to multiple titles, and that clicking any of these will open the same page. Pages marked as "external" will open in a new tab.

You can also find all my publications on Google Scholar.

Interaction Fields: Intuitive Sketch-based Steering Behaviors for Crowd Simulation
Adèle Colas, Wouter van Toll, Katja Zibrek, Ludovic Hoyet, Anne-Hélène Olivier, Julien Pettré
Computer Graphics Forum 41(2), 2022.
Received a Best Paper Award Honorable Mention.

Also published as:
Interaction Fields: Sketching Collective Behaviors
Adèle Colas, Wouter van Toll, Ludovic Hoyet, Claudio Pacchierotti, Marc Christie, Katja Zibrek, Anne-Hélène Olivier, Julien Pettré
Poster abstract at 13th ACM SIGGRAPH Conference on Motion, Interaction and Games, 2020.

Algorithms for Microscopic Crowd Simulation: Advancements in the 2010s
Wouter van Toll, Julien Pettré
Computer Graphics Forum, 40(2), 2021.

SPH crowds: Agent-based crowd simulation up to extreme densities using fluid dynamics
Wouter van Toll, Thomas Chatagnon, Cédric Braga, Barbara Solenthaler, Julien Pettré
Computers & Graphics, vol. 98, pp. 306-321, 2021.

Preceding conference publication:
Extreme-Density Crowd Simulation: Combining Agents with Smoothed Particle Hydrodynamics
Wouter van Toll, Cédric Braga, Barbara Solenthaler, Julien Pettré
In 13th ACM SIGGRAPH Conference on Motion, Interaction and Games, pp. 11:1-11:10, 2020.

Comparing navigation meshes: Theoretical properties and practical metrics
Wouter van Toll, Roy Triesscheijn, Marcelo Kallmann, Ramon Oliva, Nuria Pelechano, Julien Pettré, Roland Geraerts
Computers & Graphics, vol. 91, pp. 52-82, 2020.

Preceding conference publication:
A Comparative Study of Navigation Meshes
Wouter van Toll, Roy Triesscheijn, Marcelo Kallmann, Ramon Oliva, Nuria Pelechano, Julien Pettré, Roland Geraerts
In 9th International ACM SIGGRAPH Conference on Motion in Games, pp. 91-100, 2016.

Also presented at a national conference:
A Comparative Study of Navigation Meshes
Wouter van Toll, Roy Triesscheijn, Marcelo Kallmann, Ramon Oliva, Nuria Pelechano, Julien Pettré, Roland Geraerts
Presentation and poster in ICT.OPEN 2018, ASCI track.
Received the Poster Award 3rd Prize of ICT.OPEN 2018.

Generalized Microscropic Crowd Simulation using Costs in Velocity Space
Wouter van Toll, Fabien Grzeskowiak, Axel López, Javad Amirian, Florian Berton, Julien Bruneau, Beatriz Cabrero Daniel, Alberto Jovane, Julien Pettré
In 24th ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, pp. 6:1-6:9, 2020.

Synchronizing navigation algorithms for crowd simulation via topological strategies
Wouter van Toll, Julien Pettré
Computers & Graphics, vol. 89, pp. 24-37, 2020.

Preceding conference publication:
Connecting Global and Local Agent Navigation via Topology
Wouter van Toll, Julien Pettré
In 12th ACM SIGGRAPH Conference on Motion, Interaction and Games, pp. 33:1-33:10, 2019.

Data-Driven Crowd Simulation with Generative Adversarial Networks
Javad Amirian, Wouter van Toll, Jean-Bernard Hayet, Julien Pettré
In 32nd International Conference on Computer Animation and Social Agents, pp. 7-10, 2019.

Learning C# by Programming Games, 2nd Edition
Wouter van Toll, Arjan Egges, Jeroen D. Fokker
Published by Springer Nature, 2019

The Medial Axis of a Multi-Layered Environment and its Application as a Navigation Mesh
Wouter van Toll, Atlas F. Cook IV, Marc J. van Kreveld, Roland Geraerts
ACM Transactions on Spatial Algorithms and Systems, vol. 4 (1), pp. 2:1-2:34, 2018.

On the Topology of Walkable Environments
Benjamin Burton, Arne Hillebrand, Maarten Löffler, Saul Schleimer, Dylan Thurston, Stephan Tillmann, Wouter van Toll
In 34th European Workshop on Computational Geometry (EuroCG), pp. 66:1-6, 2018.

Navigation for Characters and Crowds in Complex Virtual Environments
Wouter van Toll
PhD Thesis (Utrecht University, The Netherlands).
ISBN 978-90-393-6711-7. Defended on March 30, 2017.

The Explicit Corridor Map: Using the Medial Axis for Real-Time Path Planning and Crowd Simulation
Wouter van Toll, Atlas F. Cook IV, Marc J. van Kreveld, Roland Geraerts
In International Computational Geometry Multimedia Exposition, pp. 70:1-70:5, 2016.

Dynamically Pruned A* for Re-planning in Navigation Meshes
Wouter van Toll, Roland Geraerts
In IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), pp. 2051-2057, 2015.

Also published as:
DPA*: Dynamically Pruned A* for Re-planning in Navigation Meshes
Wouter van Toll, Roland Geraerts
Presentation and poster in ICT.OPEN 2016, ASCI track.
- Received the Best Poster Award of the ASCI track.
- Received the Poster Award 3rd Prize of ICT.OPEN 2016.

Towards Believable Crowds: A Generic Multi-Level Framework for Agent Navigation
Wouter van Toll, Norman Jaklin, Roland Geraerts
In ASCI.OPEN 2015.
- Received the Best Presentation Award of ASCI.OPEN 2015.
- Received the Best Poster Award of ICT.OPEN 2015 (ASCI track, imaging).

Also published as:
A Generic Multi-Level Framework for Agent Navigation
Wouter van Toll, Norman Jaklin, Roland Geraerts
Poster at 8th International ACM SIGGRAPH Conference on Motion in Games, 2015 (Paris, France / Lisbon, Portugal).

GPGPU-Accelerated Construction of High-Resolution Generalized Voronoi Diagrams and Navigation Meshes
Rudi Bonfiglioli, Wouter van Toll, Roland Geraerts
In 7th International ACM SIGGRAPH Conference on Motion in Games, pp. 25-30, 2014.

Way to go - A framework for multi-level planning in games
Norman Jaklin, Wouter van Toll, Roland Geraerts
In 3rd International Planning in Games Workshop, pp. 11-14 (in ICAPS 2013).

[external] Talking soundscapes: Automatizing voice transformations for crowd simulation
Jordi Janer, Roland Geraerts, Wouter G. van Toll, Jordi Bonada
In AES 49th International Conference on Audio for Games, 2013.

A Navigation Mesh for Dynamic Environments
Wouter G. van Toll, Atlas F. Cook IV, Roland Geraerts
Computer Animation and Virtual Worlds (CAVW), vol. 23 (6), pp. 535-546, 2012.

Also presented at a national conference:
Game-Changing: Fast Dynamic Updates in a Flexible Navigation Mesh
Wouter G. van Toll, Atlas F. Cook IV, Roland Geraerts
In ASCI.OPEN / ICT.OPEN 2013.

Real-Time Density-Based Crowd Simulation
Wouter G. van Toll, Atlas F. Cook IV, Roland Geraerts
Computer Animation and Virtual Worlds (CAVW), vol. 23 (1), pp. 59-69, 2012.

Also presented at a national conference:
Realistic Crowd Simulation with Density-Based Path Planning
Wouter G. van Toll, Atlas F. Cook IV, Roland Geraerts
In ICT.OPEN 2012, ASCI track.
Received the Best Presentation Award of ASCI 2012.

Navigation Meshes for Realistic Multi-Layered Environments
Wouter G. van Toll, Atlas F. Cook IV, Roland Geraerts
In IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), pp. 3526-3532, 2011.

Also presented at a national conference:
Multi-Layered Navigation Meshes
Wouter G. van Toll, Atlas F. Cook IV, Roland Geraerts
In ICT.OPEN 2011, ASCI track.
Received the Best Paper Award of ASCI 2011.