Question concerning ece + sg textures renewal

[Shirobako]

Can I just plug these two in? Or will I have to remake my character?

 

For example: http://devillord.tistory.com/1169

This says it was made to be used with sg. If you use it on a vanilla game, the resulting npcs looks awful.

 

So what I'm wondering is, will it drastically change everything? I like the way my character looks already, it's just the npc I'm concerned with. From what I've read, it replaces stuff. So If I don't like the results, what would be required to make it go back to normal without reinstalling everything?

[TheHuntress1970]

I know that SG Renew has an optional folder for just the PC.

[Anatriax]

Let me try to understand your question a little better. 

Are you asking if there's a way to replace only the PC's skin texture, and not the NPC's?

[Shirobako]

Just forget it then. Responding wouldn't do me any good if you're not gonna read the entire post.

[Anatriax]

I did read the entire post, and I've poured over a translated copy of the page you linked. What I'm not understanding is: 

Are you wanting different textures for your PC than the textures that NPC's will use?

To answer the first question in your post: Yes, you should be able to just drop ECE and SG Renewal in to your mod manager, and things will be "mostly" fine. You might have to tweak a thing or two here and there (eye height, mouth height, nose width), but for the most part your character will be what it was prior to ECE.

The reason for the tweaks to your character is because ECE uses it's own Facegen Morphs, not the vanilla ones.