Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Screenster - 10x faster UI testing without a line of code.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
Robot framework - Robot Framework is a generic test automation framework for acceptance testing and acceptance...
Autodesk Maya - Maya is 3D computer animation software with powerful modeling, rendering, simulation, texturing, and animation tools for artists, modelers, and animators.