Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Google Open Source - All of Googles open source projects under a single umbrella
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
Code NASA - 253 NASA open source software projects
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
Disney Open Source - Explore Disney's Open Source projects