how to bake high poly and texture normal map together okay so. my plan is to add a normal map and texture to a low poly mesh. the normal map should be a combination of the high poly model and a texture. they should be baked together. I know you can bake them separately but that's not what I need. I need them together. could you please help? I think I figured it out but the mesh cant connect to itself or everything is messed up. ex) it will work on a plane but not on a cube. please help and thank you for doing so. :)
See How does normal baking work? on how normal maps are created.

You can't bake other textures and the normal into a normal map because the normal map encodes the direction of the normals in the RGB channels of the image representing the map.

From Bump_and_Normal  (Linked to 2.4 because there is more info)


  Normal maps in Blender store a normal as follows:
  
  
  Red maps from (0-255) to X (-1.0 - 1.0)
  Green maps from (0-255) to Y (-1.0 - 1.0)
  Blue maps from (0-255) to Z (0.0 - 1.0)
  


Since can add more than one texture to a model this isn't a restriction. 

EDIT: A normal vector is perpendicular to a face its coordinates (x,y,z) are stored as a pixel in an image map.