Hi I'm beginning to work with UVs and i have some problems . Does anyone know a way to avoid those UV movements when converting imported meshes from other formats to the vertex modeler ? Notice that the UV coordinates of this model were done with Steve Cox's UVmapper, so maybe the problem comes not from Carrara ... Thanks for your help .

Once you import the obj file into Steve Cox's UVmapper, you must save the obj file from Steve Cox's UVmapper. You may use the same name as the original or change the name, the main thing is that the saved UVmap will not work properly with the original obj file as appears to me why you're getting this output. The UVmap will apply accordingly with the "NEW" obj file saved from The UVmapper. Hope that helps Love and Peace

Tanks for your answer, BigSerge . The thing is that i do save the object through UVmapper, and then the UV coordinates work well (UVmapper is really a great tool for working with .obj files !). But once in Carrara, i want to deform the object for a kind of "morph" animation and to do so, i have to convert the facets into a vertex object . This is what makes some of the coordinates go wrong, i guess . And i can't find out why ...