The RTIViewer is the visualization software to display and explore Reflectance Transformation Imaging(RTI) files at very high resolution (Polynomial Texture Maps, Hemispherical Harmonics Map, and Multi-View RTI). You can view image files stored on your local file system, and remote files through HTTP. It allows to apply several ehnancement methods to improve the perception of the details, to save bookmarks and to take snapshot. You can find a copy of the User Guide in pdf format included with the software.