【MOD求助】求翻译一下这个MOD【脸部柔滑】的作者回复的内容，机翻完全看不懂啊

Roul'Soul

这个MOD求助是【脸部柔滑】的，求助的问题是【使用之后脸部变黑】MOD的网址是这个：http://bbs.3dmgame.com/thread-4971756-1-1.html
然后作者发出了回复解决，但是有些名词完全看不懂啊，希望哪位大大帮忙翻译一下

内容如下

You need to save diffuse map as DX5 no matter it has alpha channel or not
and when you decided to change the normal map and open vanilla normal map, you will notice that it's little brighter then ordinary normal maps,
you need to adjust it's level value manually, change input levels Dark(value in left side on level adjust window) into '128'
and then you will get ordinary looks of F4 normal map!
do any edit and save it as 3Dc on dds save options don't need to change the level manually in this time.
when you save it as 3Dc, it will automatically turn into brighter normal maps
i don't know how it works, but well... it works!