JMF (Jackhammer Map Format)

Stub

This article or section is a stub. You can help by expanding it.

This page documents information about an engine not developed by Valve. This information is documented here because it has technical and/or historical relevance to Valve's engines.

The Jackhammer Map Format (JMF) is a binary file format used by J.A.C.K. to store map project data before being exported to MAP, like RMF. Unlike RMF, JMF supports objects being part of multiple visgroups, and Quake III patch meshes. Additionally, it can store paths in a slightly different manner, optimized for Jack's Path Tool.