Avogadro libraries provide 3D rendering, visualization, and analysis
The open-asset-importer-library repository
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
An interactive viewer for three-dimensional chemical structures.
A real-time 3D engine for DOS-talgics (see GLOBE_3D for new stuff !)
Realtime raytracer using SIMD on ARM, MIPS, PPC and x86
Interactive 3D Layout Viewer for GDSII
Tiny but powerful single file wavefront obj loader
3D File format viewer/explorer
ITK-SNAP static builds for Windows 64-bit(only one file)
Pear3DEngine is a modern and modular 3D development framework
PixelLight is a cross-platform application framework
osGraphX is a 3D file viewer based on openscenegraph.