It's a chemical visualization and illustration program with a new graphic interface. It takes molecules in the PDB format, lets you to set up a picture with fine control over details of the illustration - colors, atom and bond radii, view orientation, etc. It will even calculate and display hydrogen bonds. It then exports the picture in POV-Ray format, which allows you to render the image with a state-of-the-art raytracer, giving high-quality images at any resolution, for anything from web page thumbnails to full-size high-resolution images for journal covers, advertisements, posters, anything!