3D file created by Survex, a program used for recording and visualizing cave system data; contains data that allows the software to visualize a 3D cave system; was generated from an .SVX file using the cavern program included with Survex. 3D files are viewed with Aven, a visualization program bundled with the Survex software package.
Three-dimensional image used by Atari Stereo CAD-3D, a program for Atari ST systems; stores 3D objects using the Motorola Fast Floating Point library (LIBF) for vertex coordinates; used as an earlier format for 3D animations.