Vegas was closed end 2016, Gamble has started in January 2017.

Vegas is an INRIA research group dedicated to computational geometry.
It is part of the INRIA Nancy - Grand Est research center and LORIA laboratory.


M2 internship positions in team Vegas

Our research is focused on the two followings themes.


Simple algebraic surfaces cover a variety of forms sufficient for representing the majority of objects encountered in the fields of design, architecture and industrial manufacturing. It is important, then, to be able to process these surfaces in a robust and efficient manner. In comparison with polygonal representations, modeling and manipulating scenes made of curved objects pose a large variety of new issues and require entirely different tools.
In the context of exact geometric computing, we work on key problems involving curved objects, mainly two-dimensional curves, and low-degree three-dimensional surfaces such as quadrics.


The notion of 3D visibility plays a fundamental role in computer graphics. In this field, the determination of objects visible from a given point, the extraction of shadows or of penumbra boundaries are examples of visibility computations. In global illumination methods, (e.g. radiosity algorithms), it is necessary to determine, in a very repetitive manner, if two points of a scene are mutually visible. The computations can be excessively expensive. For instance, in radiosity, it is not unusual that 50 to 70% of the simulation time is spent answering visibility queries. 3D Visibility