os_tool lightmaps-ex levels\test\bloodgulch\bloodgulch bloodgulch 0 1 0.0000001
that will render and unwrap the BSP.
0 0 0.0000001 willl render but not unwrap the BSP.
Or should it be 1 0 0.0000001 and 0 0 0.0000001
Unwrap first, then quality, then threshhold?
As suggested by Guardian2433