NUKE - Our industry-leading Nuke Studio, NukeX & Nuke offers cutting-edge toolkits covering node-based compositing, editorial and finishing.
FreeCAD - An open-source parametric 3D modeler
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
SketchUp - 3D for Everyone
Massive Prime - Animation
LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.