SoTextureCoordinateEnvironment(3) on Linux
The text 02e89ecb0269, as Debian 6.0 (Squeeze) shipped it.
The SoTextureCoordinateEnvironment class generates texture coordinates by projecting onto a surrounding texture. The texture specifying the enviroment will be mapped around the scenegraph below this node using a sphere. The texture will be mapped onto the scenegraph taking camera position into account. This will lead to an object reflecting its enviroment.