VR-Render is a medical image viewer. It is an interactive system for volume visualization which enables practitioners to quickly explore and analyze 3D medical or scientific data on a standard PC (Windows, Linux, MacosX). This software uses fast OpenGL graphics and is able to load a set of special images stored in DICOM format (uncompressed and JPEG,) for medical review. Visualization tools include orthogonal MIP, volume rendering and multiple colormaps (automated conventional colormap and dedicated digestive surgery colormap). Analyzed tools include distance measurement tools. For astronomical research, FITS
format is supported (only on MacOSX). These software applications work with multiple open source systems like boost (for basic system), wxWidgets (for GUI), gdcm/dcmtk (for loading DICOM) and itk/vtk/vtkinria3d (for segmentation and visualization).