2Shifroval:По первому пункту хз даже :))
А по остальным есть внятные описания в ини.
Например пункт 2
gothic first tries to activate a w buffer if your cards supports it. however, some cards have problems with gothics way to access the w buffer
; you can force z buffering here by setting the value to "1"
Т.е. если у видеокарты проблемы с w-, тогда используешь z-буфер.
Пункт 3
some grafic drivers have problems with gothics way to access the ambient lightning on a per object base but want the ambient
; light on a per scene base. this is a driver bug! if there occurs heavily lightning flickering with objects, you might set this setting
; to "1" to synchronize the ambient color after each object. this forces the driver to flush the scene after each objects which can
; seriously degrade performance (especially if you activate antialiasing!)
Тоже решение проблемы.
По кэшу - я лично настройки увеличивал.
У меня так:
zTexCacheOutTimeMSec=240000
zTexCacheSizeMaxBytes=64000000
zSndCacheOutTimeMSec=10000
zSndCacheSizeMaxBytes=32000000
Кстати вышел неофициальный
патч для английской Г2.