Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Sketch - Professional digital design for Mac.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
Adobe Illustrator CC - Adobe Illustrator CC is a commercial vector graphics editor.
Sculptris - Sculptris: Enter a world of digital art without barriers.