Section: New Results
Applications covered by this year's results
The above sections presented our research in terms of fundamental tools, models and algorithms. A complementary point of view is to describe it in terms of application domains. The following sections describe our contribution to each of these domains, with references to the tools we relied on if they were already presented above.
Interactive modeling systems
Several of the tools we are developing are devoted to a new generation of interactive modeling systems, following the general methodology based on sculpting and sketching metaphors described in the book  :
The real-time physically-based model for virtual clay presented in Section 6.1.2 is dedicated to a sculpting system as close as possible to interaction with real clay.
The sketching tools presented in Section 6.1.3 addressed both the design of general free form shapes and the combination of a sketch-based interface with a priori knowledge on the object being modeled. They were used in the industrial contract with Axiatec (see Section 7.4 ).
We are currently working at ways to combine both techniques, in other to inspire from sketching for initial shape design, and from sculpting techniques for further deformation.
Synthesis of natural scenes
Many of the diverse fundamental tools we are developing (see Sections 6.3.3 , 6.3.6 , 6.3.7 ) are contributing to the long term, general goal of modeling and animating natural scenes. They can be combined to allow the large scale specification, efficient rendering and animation of landscapes (rivers and cloudy skies, etc). The synthesis of complete natural sceneries is one of the aims of the NatSim project (see Section 8.2.2 ).
Some of our work on geometric modeling and physically-based animation has been successfully applied to the medical domain.
Our tools for efficient physically-based simulation, and in particular our new contributions to collision detection and response (see Section 6.2.1 ), as well as Matthieu Nesme's Ph.D. (see Section 6.2.2 are being used in a new European medical project called Passport for Liver Surgery (see Section 8.1.1 ).