UV Mapping

   N
W -|- E 
   S

Top Face

   ws1,hs1           we1,hs2
   w: 0., h: 0       w: 1, h: 0  
    V2                V3
      |--------------|
      |         /    |
      |       /      |          
      |     /        |
      |   /          |         
      |--------------|
    V1                V4
   w: 0, h: 1        w: 1, h: 1 
   ws2,he1           we2,he2

uvs.push(
//v1
ws2,he1,uv,
//v2
ws1,hs1,uv,
//v3
we1,hs2,uv,
//v4
we2,he2,uv
);

Side Face

  ws1,hs1          we1,hs2
  w: 0, h: 0       w: 1, h: 0
    V1                V2
      |--------------|
      |    \         |
      |      \       |      
      |        \     |
      |          \   |         
      |--------------|
    V4                V3
  w: 0, h: 1       w: 1, h: 1
  ws2,he1          we2,he2

uvs.push(
//v1
ws1,hs1,uv,
//v2
we1,hs2,uv,
//v3
we2,he2,uv,
//v4
ws2,he1,uv
);