But also look at this! I was struggling with inkscape and my wavy surface looked horrible, now I have a cool 3D (although not vectorial) drawing, in perspective, with the correct font at the correct size to go with the rest of the documents.
It was a pain as the 3D module is not clearly enough documented that I understood how to use the functions (maybe if one knows c++), I had to find other people's code to copy, but so worth it