So use bspsource to export the bsp to vmf (vmf is like the map editing file and the bsp is the playable map file).A Source Engine (SOURCE) Forum Thread in the Other/Misc category, submitted by KonataHamster. To run it, run bspsrc.bat and drop BSPs into the box, then click 'Decompile'. It's based off of the earlier, now obsolete, VMEX. It converts a compiled BSP into an editable VMF file for you to use in Hammer. BSPSource is a Java-based graphical map decompiler for all Source games, up to Dota 2. If you only have a BSP you can use BSPSource to decompile the BSP file :) More posts from the csworkshop community. Valve Radiosity Simulator Command line: 'vrad' usage : vrad bspfile example: vrad c:\hl2\hl2\maps\test You can open the VMF files in hammer. If you run vrad without the required parameters, you'll get the help context. By continuing to use this site, you are.It's a command line program and is run using a (DOS) command prompt (I usually run Command Prompt (Admin) that way the command line has admin priveleges). (BspSource.java:107) at .run(BspSource.java:67) at .BspSourceFrame$5.run This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.