Note: Combining Normal Maps

Just in case I forget.
Sharing is caring.=D


-START-

1. Create a new Photoshop file. (Same width and height with the normal maps that you rendered)

 

2. Import all the normal maps that you baked seperately into Photoshop. ( Rasterized them )

3. Create groups for each layer and duplicate the layer inside the groups.

4. Fill the Background layer with RGB:127,127,255

5. Choose 50% grey for foreground color and 100% white for background color.

  

Foreground (50% grey)

 Background (100% white)

6. Change the BOTTOM layer to MULTIPLY and TOP layer to OVERLAY.

7. Choose the MULTIPLY layer and press "Ctrl+Del"(Shortcut key to fill in background color) in both RED and GREEN channel

8. Choose the OVERLAY layer and press "Alt+Del"(Shortcut key to fill in foreground color) in BLUE channel.

9. Repeat step 5,6 and 7 for other groups.

-END-

Credit:
KianMing
&
http://vimeo.com/8025133