SoVRMLCollision(3) on Linux
The text 7d4cc61488f8, as Debian 7 (Wheezy) shipped it.
The SoVRMLCollision class is used for collision detection with the avatar. The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the Consortium: