Open Source Solid Modeling CAD
Doing 3D with Tcl
CIRT - CUDA Interactive Ray Tracer
C++ header-only library that simulates GLSL math
Java3d scenegraph editor
realistic driving simulation + functions for 2D/3D graphics
3D Without Boundaries
A real time 3D graphics engine written in C++
Compose render props components like a pro
A processing system for 3D triangular meshes
Maxwell Render for Blender