Dilay

Dilay us a 3D sculpting software.

FreeCAD

FreeCAD is a 3D CAD/CAE parametric modeling application. It is primarily made for mechanical design, but also serves all other uses where you need to model 3D objects with precision and control over modeling history.

Sculptgl

SculptGL is a web sculpting application.

Triangle (It is not a freeware, until proved otherwise)

for generated Delaunay triangulations

TexTuring

Blender

Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing and motion tracking, even video editing and game creation.

Jashaka

Jashaka est un logicel d'édition vidéo et effets spéciaux.

Arbaro

Arbaro is a tree generator, compatible with blender (export Wavefront OBJ files). Very easy to use because of the little picture on the down right corner.