Skybox: Blender 3D Game Engine


1.  Add a Cube.

The cube is going to be our skybox

Add Cube:
Spacebar >> Add >> Mesh >> Cube
User Preference menu >> Add >> Mesh >> Cube

2.  Normals -- recalculate inside.

The player will be inside the SkyBox and we want the sky to be displayed on the inside where the player can see them.

Cube selected.  Edit Mode.
3D View menu >> Mode Box >> Edit Mode
Tab key

Select all vertices/edges/faces.
3D View menu >> Select >> Select/Deselect All     
A key

Normals:  recalculate inside
3D View menu >> Mesh >> Normals >> Recalculate Inside
Ctrl Shift N
Recalculate normals inside

3.  Cut the Cube in half.

The player is only going to be able to see the top half of the SkyBox.

Cube Selected.    Edit mode.  All vertices/edges/faces selected
Select Knife cut -- midpoints
3D View menu >> Mesh >> Edges >> Knife Subdivide >> Midpoints   
K key
Knife (Midpoints)
Cut cube in half
Left click mouse one side
Left click mouse other side
Enter key

Select bottom 4 vertices
X key
3D View menu >> Mesh >> Delete

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