Blending Inkscape and Blender
One of the things I’ve always wanted to do is to work on an image in a 3D environment but then export the resultant image to an svg. Being the open source nut that I am my main weapons of choice are Blender for 3D work and Inkscape for vector. These programs have their advantages and their disadvantages. The main advantage they have over many similar programs is that they’re open source and free. They’re very capable products and are used quite widely and are being actively developed. In fact, Inkscape is getting ready to release version 0.47 (I’ve used a prerelease and it’s awesome)