Guild of Writers

Note: This is a draft. It needs to be reformatted and pictures are needed.
This is a raw copy of an excellent post by dendwaler and this information must not be lost.
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Let 's try to texture a simple cube with two materials.
4 sides with material 1 and 2 sides with material 2
Let's begin and repeat this step by step.

1)Press f5
2)click on " add new" (link to object)
3)press f6
4)click on " add new" (texture)
5)choose texture type (image)
6)click on "load" and load your first image
7)click in the second texture channel
8)click on "Add new" (texture)
9)choose texture type (image)
10)load your second image


setting up material 1
11)Press f5
12) activate texture 1 in the texture tab
13)activate next tab (Map input)
14)choose UV
15)activate next tab (map to)
16)activate color and normal field

setting up material 2
17)activate texture 2 in the texture tab
13)activate next tab (Map input)
14)choose UV
15)activate next tab (map to)
16)activate color and normal field


Now start the UV map procedure.
remember that material 2 is active at this point


17)select the cube
18)tab to edit mode
19) press "A" to deselect all
20)choose face select mode
19) select the two faces you want to texture with the active material
20)press "alt z" to go to the texture draw type, because we want to see what happens!

21) make a second window with the uv image editor activated.
22)in your "cube" window press U
23) press unwrap(smart projections)
24)press "OK"

25)go to your uv window and choose the active material in the selector (updown arrow)
26)In the uv window you can now use the scale, rotate or grab command 's to adjust the texture spreading on the selected faces
you can imediately see the result in the "cube window"

Second part
27) in your "cube window", press "Ctrl+I" to switch to the remaining faces.
28) In the panels window press f9
29) In links and materials press "new" to add a new material
30) In the panels press "f5"

31) Click in the first field of the "texture choises" to bind it to your new material.
32) in your "cube" window press U
33) press unwrap(smart projections)
34) press "OK"

35) go to your uv window and choose the active material in the selector (updown arrow)
36) In the uv window you can now use the scale, rotate or grab command 's to adjust the texture spreading on the selected faces
you can imediately see the result in the "cube window"

That was all.
Look into your outliner window and in there expand the cube and see you have two materials binded to it.
click on one one material and load another image.
when you did all well , you don't have to UV map again for a different result.
When you forget to do step 29-31 then you have "two textures within 1 material "and you can't edit that without a new uv map.
use that for multiple layers inside 1 material
In that case for every layer you have to set a new map "input" and map to
The map input defines the size of the texture without effecting the UVmap.
The "map to " tells how you want to use the texture.