DGV Allows Data Visualisation via Images, Surfaces and Volume plots using OpenGL. Uses the Blitz++, VTK Visualisation and Open Source Qt Libraries. Discrete Geometry 3D Viewer is a small scientific visualization tool.
It uses OpenGL to display line, surface and volume plots from a variety of data formats:
1. PNG, TIFF, PNM (PGM etc.), BMP, TGA and JPEG images
2. DICOM images
3. VTK Legacy (VTK) and XML Image (VTI) format
4. Comma Seperated Values (CSV) files
5. Image Stacks (PNG, TIFF, PNM (PGM etc.), BMP and JPEG)
6. GNUPlot Format (2-tuple) Files
7. Blitz++ Array Format Files

The license of this software is Free, you can free download and free use this 3d graphic software.