glBSP is a node builder specially designed to be used with OpenGL ports of the DOOM game engine. It adheres to the "GL-Friendly Nodes" specification, which means it adds some new special nodes to a WAD file that makes it very easy (and fast !) for an OpenGL DOOM engine to compute the polygons needed for drawing the levels. There are many DOOM ports that understand the GL Nodes which glBSP creates, including: EDGE, the Doomsday engine (JDOOM), Doom3D, PrBoom, and Vavoom. WWW: http://glbsp.sourceforge.net/ - Igor Pokrovsky tiamat@comset.net