Skybox

25. UV/Image Editor: Select SkyBox_UV
  • UV/Image Editor menu >> UV Map box >> SkyBox_UV
26. UV/Image Editor:  Select the skybox texture
  • UV/Image Editor menu >> Image List >> SkyBox_MidMorning.png
27.  Mark the skybox side edges as Seams
  • 3D View menu >> Select box >> Edge select
     
  • Deselect all:  3D View menu >> Select >> (De)select All
     
  • Shift Key (hold down) >> select all 4 side edges
     
  • 3D View menu >> Mesh >> Edges >> Mark Seam
Note:
  • Marking an edge as a seam tells the UV Unwrap to separate the mesh at the marked seam