# cube.obj with materials and documentation
#
mtllib cube-textures.mtl
g cube
# v1 is origin: back lower left (bll)
# v2=fll, v3=bul, v4=ful, v5=blr, v6=flr, v7=
v  0.0  0.0  0.0   v1 = back lower left (origin)
v  0.0  0.0  1.0   v2 = front lower left
v  0.0  1.0  0.0   v3 = back upper left
v  0.0  1.0  1.0   v4 = front upper left
v  1.0  0.0  0.0   v5 = back lower right
v  1.0  0.0  1.0   v6 = front lower right
v  1.0  1.0  0.0   v7 = back upper right
v  1.0  1.0  1.0   v8 = front upper right

vn  0.0  0.0  1.0
vn  0.0  0.0 -1.0
vn  0.0  1.0  0.0
vn  0.0 -1.0  0.0
vn  1.0  0.0  0.0
vn -1.0  0.0  0.0
 
vt 0.0 0.0  # vt=1 is upper left of texture
vt 0.0 1.0  # vt=2 is lower left of texture
vt 1.0 0.0  # vt=3 is upper right of texture
vt 1.0 1.0  # vt=4 is lower right of texture

# remember, syntax is v/vt/vn
g back face
usemtl buffy-gray
f  1/4/2  7/1/2  5/2/2
f  1/4/2  3/3/2  7/1/2 
g left face
usemtl buffy-blue
f  1/2/6  4/3/6  3/1/6 
f  1/2/6  2/4/6  4/3/6 
g top face
usemtl buffy-red
f  3/1/3  8/4/3  7/3/3 
f  3/1/3  4/2/3  8/4/3 
g right face
usemtl buffy-green
f  5/4/5  7/3/5  8/1/5 
f  5/4/5  8/1/5  6/2/5 
g bottom face
usemtl buffy-red
f  1/2/4  5/4/4  6/3/4 
f  1/2/4  6/3/4  2/1/4 
g front face
usemtl buffy-gray
f  2/2/1  6/4/1  8/3/1 
f  2/2/1  8/3/1  4/1/1