avatars really need to be remake (see VWR-1258, VWR-7630) due to old technology and need for better rendering and better performances. Avatars are made from a mesh of triangles, and this poses many problems, that using NURB technology would solve. (definitions: Meshes are shapes which are defined by point coordinates and triangular faces, on which textures are applied. A mesh rendering is independent of distance. NURBs are shapes which are defined by a mathematical equation (polynomial). When rendering, a NURB is transformed in a triangle mesh (tesselation) where there are many triangles for close shapes or sharp curves, and less triangles for far shapes or flat surfaces.) discussion: Pros: -NURB rendering automatically accounts with the distance: a far avatar would have less triangles than a close one (less lag inducing) while a very close av would keep a very smooth shape, without showing angular or blocky shapes. This would make impostor useless (VWR-7630) or the NURB renderer could cosider that a far av is "flat", making it equicalent to an impostor. -there would be much more freedom for body shapes, without making body parts loking angular or overstretched (VWR-1258) -on the reverse when body shapes are smaller, rendering would use much less triangles than the equivalent mesh. Cons: probably, at the most common distance, NURB would use more CPU power than the equivalent meshes, but this is a case among others, for instance when we speak with 1-2 persons at a distance of 2-3m. But this situation is not the most lag-prone. In the most laggy situations (bals, parties, conferences, concerts, lessons, meetings) we have some very close avs and many more far (5-15m) where NURBS would use much less calculation power than the classical mesh. Anyway far avs could use a simplified "flat" NURB rendering, more or less equivalent to the impostor