Some more information about my work is also available here.

I did my PhD at INRIA Rhones-Alpes (Grenoble) in iMAGIS/EVASION team, under the supervision of Fabrice Neyret. My PhD work was about advanced texturing methods using GPUs (see also my thesis webpage). After graduating I joined Microsoft Research, Seattle, as a postodctoral researcher during the year 2005. I worked with Hugues Hoppe on real-time texture synthesis and texturing. I became an INRIA researcher in September 2006, joining the REVES team in INRIA Sophia Antipolis. In late 2009 I joined the ALICE team at INRIA Nancy. In 2010, I received the EUROGRAPHICS Young Researcher Award.

My current research focuses are in procedural content generation (often starting from examples), end-user content manipulation and compact GPU-friendly data structures for interactive applications and games.

In my rapidely shrinking spare time I enjoy both playing and developing games (check out my game projects Etees, Jalweg, and Ragdoll smasher).

[: (Past entry) see picture :] Results of our 2009 SIGGRAPH paper Procedural Noise using Sparse Gabor Convolution. All these textures are purely procedural, and filtered. Watch the video.

[: (Past entry) see picture :] Volumes generated by our Lazy Solid Texture Synthesis approach. Read the paper here!

[: (Past entry) see picture :] A strange tiling. Try to follow the stairs :-)

[: (Past entry) see picture :] We just finished the final version of our I3D 2007 paper: TileTrees. The paper is available here.

[: (Past entry) see picture :] These days I have been implementing a sky model for a project on natural phenomenons. Nothing new, just cool images :-) The model is based on the work of Naty Hoffman and Arcot J. Preetham Rendering Outdoor Light Scattering in Real Time. A more recent version of their work is also available in the book Graphics Programming Methods by Charles River Media. For those interested, here is the shader.

By–example synthesis of curvilinear structured patterns Shizhe Zhou, Anass Lasram, Sylvain Lefebvre EUROGRAPHICS 2013

A Runtime Cache for Interactive Procedural Modeling [PDF] Tim Reiner, Sylvain Lefebvre, Lorenz Diener, Ismael García, Bruno Jobard, Carsten Dachsbacher Computers & Graphics, Shape Modeling International 2012 (to appear) 2012

Gabor Noise by Example [PDF] Bruno Galerne*, Ares Lagae*, Sylvain Lefebvre, George Drettakis (* joint first authors) ACM Transactions on Graphics (Proceedings of SIGGRAPH) 2012

Parallel patch--based texture synthesis Anass Lasram, Sylvain Lefebvre High Performance Graphics 2012

Procedural Texture Preview [PDF] Anass Lasram, Sylvain Lefebvre, Cyrille Damez Computer Graphics Forum (Proceedings of the Eurographics conference) 2012

Scented Sliders for Procedural Textures [PDF] Anass Lasram, Sylvain Lefebvre, Cyrille Damez Eurographics (short papers) 2012

Coherent Parallel Hashing Ismael Garcia, Sylvain Lefebvre, Samuel Hornus, Anass Lasram ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia) 2011

Improving Gabor noise [PDF] Ares Lagae, Sylvain Lefebvre, and Philip Dutré IEEE Transactions on Visualization and Computer Graphics 2011

Relighting Photographs of Tree Canopies [PDF] Marcio Cabral, Nicolas Bonneel, Sylvain Lefebvre, George Drettakis IEEE Transactions on Visualization and Computer Graphics 2011

A Dynamic Noise Primitive for Coherent Stylization Pierre Bénard, Ares Lagae, Peter Vangorp, Sylvain Lefebvre, George Drettakis, Joëlle Thollot Computer Graphics Forum (Proceedings of the Eurographics Symposium on Rendering) 2010

A survey of procedural noise functions [PDF] Ares Lagae, Sylvain Lefebvre, Rob Cook, Tony DeRose, George Drettakis, D.S. Ebert, J.P. Lewis, Ken Perlin, and Matthias Zwicker Computer Graphics Forum, 29(8):2579-2600 2010

Assisted Texture Assignment [PDF] Matthäus Chajdas, Sylvain Lefebvre, Marc Stamminger I3D 2010

By-example Synthesis of Architectural Textures [PDF] Sylvain Lefebvre, Samuel Hornus, Anass Lasram ACM Transactions on Graphics (SIGGRAPH Conference Proceedings) 2010

Instant Texture Synthesis by Numbers Pau Panareda Busto, Christian Eisenacher, Sylvain Lefebvre, Marc Stamminger Proceedings of the Vision, Modeling, and Visualization Workshop 2010

Invisible Seams Nicolas Ray, Vincent Nivoliers, Sylvain Lefebvre and Bruno Lévy Computer Graphics Forum (Proceedings of the Eurographics Symposium on Rendering) 2010

Proxy-Guided Texture Synthesis for Rendering Natural Scenes [PDF] Nicolas Bonneel, Michiel van de Panne, Sylvain Lefebvre, George Drettakis Proceedings of Vision Modeling and Visualization 2010

State of the Art in Procedural Noise Functions [PDF] Ares Lagae, Sylvain Lefebvre, Rob Cook, Tony DeRose, George Drettakis, D.S. Ebert, J.P. Lewis, Ken Perlin, Matthias Zwicker EG 2010 - State of the Art Reports 2010

Virtual Texture Mapping 101 Matthäus G. Chajdas, Christian Eisenacher, Marc Stamminger, Sylvain Lefebvre GPU Pro (ISBN: 978-1-56881-472-8) 2010

GigaVoxels : Ray-Guided Streaming for Efficient and Detailed Voxel Rendering [PDF] Cyril Crassin, Fabrice Neyret, Sylvain Lefebvre, Elmar Eisemann I3D 2009

Procedural Noise using Sparse Gabor Convolution [PDF] Ares Lagae, Sylvain Lefebvre, George Drettakis, Philip Dutré ACM Transactions on Graphics (SIGGRAPH Conference Proceedings) 2009

State of the Art in Example-based Texture Synthesis [PDF] Li-Yi Wei, Sylvain Lefebvre, Vivek Kwatra, Greg Turk Eurographics 2009, State of the Art Report, EG-STAR 2009

Structure Preserving Reshape for Textured Architectural Scenes [PDF] Marcio Cabral, Sylvain Lefebvre, Carsten Dachsbacher, George Drettakis Computer Graphics Forum (Proceedings of the Eurographics conference) 2009

Efficient and Practical TileTrees (in Shader X6) [PDF] Carsten Dachsbacher, Sylvain Lefebvre Charles River Media 2008

Filtered Tilemaps (in Shader X6) [PDF] Sylvain Lefebvre Charles River Media 2008

Lazy Solid Texture Synthesis [PDF] Yue Dong, Sylvain Lefebvre, Xin Tong, George Drettakis Computer Graphics Forum (Proceedings of the Eurographics Symposium on Rendering) 2008

Texture Synthesis from Photographs [PDF] Christian Eisenacher, Sylvain Lefebvre, Marc Stamminger Computer Graphics Forum (Proceedings of the Eurographics conference) 2008

An Interactive Perceptual Rendering Pipeline using Contrast and Spatial Masking [PDF] George Drettakis, Nicolas Bonneel, Carsten Dachsbacher, Sylvain Lefebvre, Michael Schwarz, Isabelle Viaud-Delmon Rendering Techniques (Proceedings of the Eurographics Symposium on Rendering) 2007

Compressed Random-Access Trees for Spatially Coherent Data [PDF] Sylvain Lefebvre, Hugues Hoppe Rendering Techniques (Proceedings of the Eurographics Symposium on Rendering) 2007

Extending Geometrical Acoustics to Highly Detailed Architectural Environments [PDF] Nicolas Tsingos, Carsten Dachsbacher, Sylvain Lefebvre, Matteo Dellepiane 19th Intl. Congress on Acoustics 2007

Instant Sound Scattering [PDF] Nicolas Tsingos, Carsten Dachsbacher, Sylvain Lefebvre, Matteo Dellepiane Rendering Techniques (Proceedings of the Eurographics Symposium on Rendering) 2007

TileTrees [PDF] Sylvain Lefebvre, Carsten Dachsbacher I3D 2007

TV Optimization and Graph-cuts Jérome Darbon, Sylvain Lefebvre, Selim Esedoglu, Tony F. Chan ICIAM, Proceedings in Applied Mathematics and Mechanics 2007

Appearance-space texture synthesis Sylvain Lefebvre and Hugues Hoppe SIGGRAPH 2006

Perfect spatial hashing Sylvain Lefebvre and Hugues Hoppe SIGGRAPH 2006

Real-time realistic illumination and shading of stratiform clouds Antoine Bouthors, Fabrice Neyret, Sylvain Lefebvre Eurographics Workshop on Natural Phenomena 2006

Parallel controllable texture synthesis Sylvain Lefebvre and Hugues Hoppe SIGGRAPH 2005

Texture Sprites: Texture Elements Splatted on Surfaces Sylvain Lefebvre, Samuel Hornus and Fabrice Neyret I3D 2005

ZP+: correct Z-pass stencil shadows Samuel Hornus, Jared Hoberock, Sylvain Lefebvre and John C. Hart I3D 2005

All-Purpose Texture Sprites Sylvain Lefebvre, Samuel Hornus and Fabrice Neyret INRIA Research report 2004

MobiNet: a pedagogic platform for Computer Science, Maths and Physics Sylvain Lefebvre, Fabrice Neyret, Samuel Hornus and Joëlle Thollot Eurographics 2004 - Education track 2004

Octree Texture on the GPU Sylvain Lefebvre, Samuel Hornus and Fabrice Neyret GPU Gems 2 2004

Unified Texture Management for Arbitrary Meshes Sylvain Lefebvre, Jérome Darbon and Fabrice Neyret INRIA Research report 2004

Automatic Cell-and-portal Decomposition Sylvain Lefebvre and Samuel Hornus INRIA Research report 2003

Drops of water and texture sprites Sylvain Lefebvre Shaderx2: Shader Programming Tips & Tricks. 2003

Pattern Based Procedural Textures Sylvain Lefebvre, Fabrice Neyret I3D 2003

Synthesizing Bark Sylvain Lefebvre, Fabrice Neyret 13th Eurographics Workshop on Rendering 2002

• .2010. (PhD) Anass Lasram
• .2010. (intern) Alexandra Petitjean
• .2010. (PhD, intern) Ismael García Fernández (visiting from the University of Girona)
• .2009. (intern) Matthäus G. Chajdas
• .2008. (PhD) Marcio Cabral (supervised by George Drettakis)
• .2008. (intern) Marcel Meili
• .2007. (intern) Nader Salman
• .2007. (intern) Christian Eisenacher

Here is a small video overview of what I did these past years (from 1999 to 2005), including research but also other (less-serious :-) projects.
 
Video overview 1999-2005

Please visit my PhD thesis page for more information.

• MobiNet
• Etees
• Jalweg
• Ragdoll Smasher