normals

0.0f,0.0f,-1.0f,
0.0f,0.0f,-1.0f,
0.0f,0.0f,-1.0f,
0.0f,0.0f,-1.0f,
0.0f,0.0f,-1.0f,
0.0f,0.0f,-1.0f,

0.0f,0.0f,1.0f,
0.0f,0.0f,1.0f,
0.0f,0.0f,1.0f,
0.0f,0.0f,1.0f,
0.0f,0.0f,1.0f,
0.0f,0.0f,1.0f,

-1.0f,0.0f,0.0f,
-1.0f,0.0f,0.0f,
-1.0f,0.0f,0.0f,
-1.0f,0.0f,0.0f,
-1.0f,0.0f,0.0f,
-1.0f,0.0f,0.0f,

1.0f,0.0f,0.0f,
1.0f,0.0f,0.0f,
1.0f,0.0f,0.0f,
1.0f,0.0f,0.0f,
1.0f,0.0f,0.0f,
1.0f,0.0f,0.0f,

0.0f,-1.0f,0.0f,
0.0f,-1.0f,0.0f,
0.0f,-1.0f,0.0f,
0.0f,-1.0f,0.0f,
0.0f,-1.0f,0.0f,
0.0f,-1.0f,0.0f,

0.0f,1.0f,0.0f,
0.0f,1.0f,0.0f,
0.0f,1.0f,0.0f,
0.0f,1.0f,0.0f,
0.0f,1.0f,0.0f,
0.0f,1.0f,0.0f,