This program allows you to view BPG Images in Windows,Linux and macOS.
LDraw™ editor for LEGO® style digital building instructions.
View Sixel images in Windows, and Sixel image repository
View64 is a image viewer for C64 images
Rayshade raytracer
3D Procedural Modelling and Procedural Texturing Tool in OpenGL/C++
small console GML or graphviz DOT graph viewer
The Utah Raster Toolkit 3.0, patchlevel 2
Easy to use physics simulation combining ODE with OpenInventor.