Quake1  Globe  

Mbuild is a converter for Quake made by David Langeliers. It imports .mpb files, which are similar to those in POV-Ray, and exports them as .map files. The .mpb file defines the brushes in Quake, while tags are added in Mbuild to define entities, rotations, angles, and textures. Mbuild is a relatively limited program, being only able to create 6-sided boxes.