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Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Inventor - Inventor is a 3D CAD software that lets you quickly create 3D models with embedded intelligence, intuitive workflows, and optimized performance.
Quixel Mixer - Mixer is a PBR creation suite that uses brushes and non-destructive layering to generate all types of maps.
FreeCAD - An open-source parametric 3D modeler
3D-Coat - 3D-Coat is the one application that has all the tools you need to take your 3D idea from a block of digital clay all the way to a production ready, fully textured organic or hard surface model.
Ayam - Ayam is a free 3D modelling environment for the RenderMan interface, distributed under the BSD...