Here’s a simple retexturing tutorial using GIMP/PS. Made this in like an hour, so excuse the simple format.
Timestamps:
00:00 Intro
00:34 First example
01:08 Camo overlaying
01:56 Using normal maps
04:38 Seams using layer masks
07:38 Things that shouldn’t be camouflaged
09:18 Complete retexture .PSD example
10:14 What to do with small camo swatches
11:07 Optional “mask“ layer
12:15 Second example
12:44 No solid diffuse texture: what to do?
13:56 Use of material normal maps
14:50 Seams where materials change
16:08 Other ways of retexturing
17:09 Outro
Thank you for watching!