The open source mesh processing system
3D engine with modern graphics
A standalone, large scale, open project for 2D/3D image processing
Console-based GLSL Sandbox for 2D/3D shaders shaders
Dust3D is a cross-platform open-source 3D modeling software
a parametric 3D CAD modeler
3d Procedural Generator
OpenGL shell and horn generator
Open-Source Shoemaking
The programmer's solid 3D CAD modeller
HARFANG 3D source code public repository
3D Procedural Modelling and Procedural Texturing Tool in OpenGL/C++
A language for making art using mathematics
Design your own pottery for 3D printing in full color
3D representations of flowers, flower elements, bouquets or meadows
Converts between many 3D data formats
Tiny but powerful single file wavefront obj loader
A raytracer that tries to combine simplicity with power.
3D Contents Moding Tool
Can convert from/to many 3D mesh file formats
It's a direct manipulation parametric curve modeler.