Avogadro libraries provide 3D rendering, visualization, and analysis
3D GPUs Strange Attractors and Hypercomplex Fractals explorer
3D fractal rendering software
rayshade and POV for Mathematica Export + view
Coin3D Qt GUI Library
simple 3d scene viewer for windows/linux/android
Renderer single image as cylinder to skybox
Megalui: 2D/3D OpenGL & C/C++ Library for Scientific Visualizations
3D model viewer and world navigator.