Volume rendering engine
VRE is a volume data visualisation engine with high extendability allowing high code-reuse at the same time. It's cross-platform (Windows/Linux) released under GPLv3 license so feel free to try it. Together with the engine we provide some basic plugins and also develop a GUI application. Engine also allows (yet, currently it's unsupported) to do a remote rendering - using inexpensive client with powerful visualisation server.