YOU HAVE TO USE "-COMPLEVEL 11" WITH GLBOOM-PLUS. DO NOT TRY IT WITH "-COMPLEVEL 9".
You need a MBF compatible OpenGL port with support of hi-res textures in wads, MUSINFO lump, tall patches, and music in OGG format.
Currently there are only two ports which can handle this wad correctly: GLBoom-Plus 2.5.1.2 and GZDoom SVN build rev. 1266 (http://svn.drdteam.org) or higher.
Risen3D will probably be able to handle this wad starting from the next release (2.2.13 or higher).
Command line: glboom-plus vg.wad -complevel 11.
Textures and sprites: Outlaws, NOLF2, Hexen2, Blood, Pain Killer, Realm667, Doom64, SNtex, Duke3D, American McGee's Alice, Urban Terror, DM-RealManor UT map by Angelheart.
Sky on map02 has been taken from the "The Eiger Sanction" film.
Horse sprites have been made from free 3D model by animella.
Sound: Blood, Doom3.
Music: American McGee's Alice, Johnny Cash.
Most of the borrowed textures have been reworked, many have been taken from the net & some are self made.
Credits:
id Software, The authors of DoomBuilder, DeePsea and Slade
Base:
New from scratch
Build time:
Four months.
Editor(s) used:
DoomBuilder 1.68, DeePsea, Slade
Bugs:
None with GLBoom-Plus 2.5.1.2
A lot of problems with current releases of ZDoom (2.5.0) and GZDoom (1.5.6). The latest SVN builds from http://svn.drdteam.org are strongly recommended.