François Morellet realised his series of works titled 'Sphère-Trames' between 1962 and 1966. With this series the artist tried for the first time to make a structure float in space, while hanging on a cable at eye-level, and being free of a base. Morellet's practice was inspired by a tradition of geometrical and architectural abstraction, deliberately distancing himself from the romantic idea of the creative artist blindly following his sensitivity—a widespread notion throughout the twentieth century. With an orthogonal grid that pivots slightly on its axis, 'Sphère-Trames’ deprives the audience from the possibility of having a privileged viewpoint: depending on the viewer's position, either looking frontally at the sphere or through it, the object appears alternately full and empty. It is as if the grid was now projected onto a sphere, in an attempt to capture and represent roundness
 in a square.
 'Sphère-Trames’ was and remains a decisive step in Morellet’s six-decade career.