Specify the vtk opengl format directly in the objects (to avoid having
to do it once and for all and mess up with other qopengl widgets)
La vérification des quotas de chaque projet est mise en place en mode non bloquant. Plus d'information sur : https://doc-si.inria.fr/pages/viewpage.action?pageId=146834656
Quota verification is enabled for projects in non-blocking mode. More information: https://doc-si.inria.fr/pages/viewpage.action?pageId=146834656
to do it once and for all and mess up with other qopengl widgets)