well unreal automaticly rescales head textures down to 512 and all the other textures to 1024, never got a 2048 texture in there to stay at it's initial size, after saving U3 compresses the textures so hard that they look worse then a rescaled 1024 version from photoshop, so i had to split my last character into 2 maps,…
Better to use a single map in most cases. There are a couple reasons to use multiple maps. Some console hardware works better with multiple smaller bitmaps than one large bitmap. Another reason is if the game has a swap-uniforms feature, or swap-skincolor, or other kinds of customization. Then you want to isolate the…