Dear all, Since a number of you are using the spherigon pre-processing filter inside MeshConvert, this is just a quick note to say that a bunch of fairly long-standing bugs have now been fixed for both the 2D and 3D implementations, and that you can now specify multiple surfaces to deform at the same time by doing e.g. MeshConvert -m spherigon:surf=1,3-5,7 input.msh output.xml Please let me know if you encounter any problems. Cheers, Dave