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The main goal of this thesis is to propose methods to synthesize shapes in a controllable manner, with the purpose of being fabricated. As 3D printers grow more accessible than ever, modeling software must now take into account fabrication constraints posed by additive manufacturing technologies. Consequently, efficient algorithms need to be devised to model the complex shapes that can be created through 3D printing. We develop algorithms for by-example shape synthesis that consider the physical behavior of the structure to fabricate. All the contributions of this thesis focus on the problem of generating complex shapes that follow geometric constraints and structural objectives.
In a first time, we focus on dealing with fabrication constraints, and propose a method for synthesizing efficient support structures that are well-suited for filament printers. In a second time, we take into account appearance control, and develop new by-example synthesis methods that mixes in a meaningful manner criteria on the appearance of the synthesized shapes, and constraints on their mechanical behavior. Finally, we present a highly scalable method to control the elastic properties of printed structures. We draw inspiration from procedural texture synthesis methods, and propose an efficient algorithm to synthesize printable microstructures with controlled elastic properties.
Video (in French)
The following presentation video was made for the IG-RV PhD Thesis Award in 2018:
List of Publications
Bridging the Gap: Automated Steady Scaffoldings for 3D Printing
Jérémie Dumas, Jean Hergel and Sylvain Lefebvre
ACM Transactions on Graphics (TOG) — Proceedings of ACM SIGGRAPH 2014
Volume 33 Issue 4, July 2014
By-Example Synthesis of Structurally Sound Patterns
Jérémie Dumas, An Lu, Sylvain Lefebvre, Jun Wu, Christian Dick
ACM Transactions on Graphics (TOG) — Proceedings of ACM SIGGRAPH 2015
Volume 34 Issue 4, July 2015
Structure and Appearance Optimization for Controllable Shape Design
Jonàs Martínez, Jérémie Dumas, Sylvain Lefebvre, Li-Yi Wei
ACM Transactions on Graphics (TOG) — Proceedings of ACM SIGGRAPH Asia 2015
Volume 34 Issue 6, December 2015
Tight Printable Enclosures and Support Structures for Additive Manufacturing
Samuel Hornus, Sylvain Lefebvre, Jérémie Dumas, Frédéric Claux
Eurographics Workshop on Graphics for Digital Fabrication, 2016
Procedural Voronoi Foams for Additive Manufacturing
Jonàs Martínez, Jérémie Dumas, Sylvain Lefebvre
ACM Transactions on Graphics (TOG) — Proceedings of ACM SIGGRAPH 2016
Volume 35 Issue 4, July 2016
- 2018.12.12: Added abstract.
- 2018.12.10: Added link to summary video (in French).
- 2017.08.30: Fixed minor spelling mistakes in the French text.
- 2017.03.20: Final version with acknowledgments + changes suggested by committee members.
- 2017.02.01: Fixed minor typo + Added slides for the defense.
- 2016.11.10: Updated the cover of the manuscript to better match the rules of the doctoral school.