self setClientDvar( "r_distortion", 0);
self setClientDvar( "r_desaturation", 0);
self setClientDvar( "r_contrast", 0);
self setClientDvar( "r_multigpu", "1" );
self setClientDvar( "r_normalmap", "0" );


if you have this how change it so you have the screens almost black?

like the zombie mods