wavefront cylinder with normals

cylinder.obj

# File produced by Open Asset Import Library (http://www.assimp.sf.net)
# (assimp v5.0.3029775719)

mtllib $blobfile.mtl

# 34 vertex positions
v  1 0 0
v  0.9238795 0 0.38268346
v  0.9238795 1 0.38268346
v  1 1 0
v  0.70710677 0 0.70710677
v  0.70710677 1 0.70710677
v  0.38268343 0 0.9238795
v  0.38268343 1 0.9238795
v  -4.3711388e-08 0 1
v  -4.3711388e-08 1 1
v  -0.38268352 0 0.9238795
v  -0.38268352 1 0.9238795
v  -0.70710677 0 0.70710677
v  -0.70710677 1 0.70710677
v  -0.92387962 0 0.38268328
v  -0.92387962 1 0.38268328
v  -1 0 -8.7422777e-08
v  -1 1 -8.7422777e-08
v  -0.9238795 0 -0.38268343
v  -0.9238795 1 -0.38268343
v  -0.70710665 0 -0.70710689
v  -0.70710665 1 -0.70710689
v  -0.38268313 0 -0.92387968
v  -0.38268313 1 -0.92387968
v  1.1924881e-08 0 -1
v  1.1924881e-08 1 -1
v  0.3826836 0 -0.92387944
v  0.3826836 1 -0.92387944
v  0.70710701 0 -0.70710653
v  0.70710701 1 -0.70710653
v  0.92387956 0 -0.38268343
v  0.92387956 1 -0.38268343
v  0 0 0
v  0 1 0

# 0 UV coordinates

# 18 vertex normals
vn 1 0 0
vn 0.9238795 0 0.38268346
vn 0.70710683 0 0.70710683
vn 0.38268349 0 0.92387962
vn -4.3711388e-08 0 1
vn -0.38268352 0 0.9238795
vn -0.70710683 0 0.70710683
vn -0.92387962 0 0.38268328
vn -1 0 -8.7422777e-08
vn -0.92387962 0 -0.38268349
vn -0.70710665 0 -0.70710689
vn -0.38268313 0 -0.92387968
vn 1.1924881e-08 0 -1
vn 0.3826836 0 -0.92387944
vn 0.70710707 0 -0.70710659
vn 0.92387956 0 -0.38268343
vn 0 -1 0
vn 0 1 0

# Mesh 'cylinder' with 64 faces
g cylinder
usemtl MyMaterial
f  1//1 2//2 3//2
f  1//1 3//2 4//1
f  2//2 5//3 6//3
f  2//2 6//3 3//2
f  5//3 7//4 8//4
f  5//3 8//4 6//3
f  7//4 9//5 10//5
f  7//4 10//5 8//4
f  9//5 11//6 12//6
f  9//5 12//6 10//5
f  11//6 13//7 14//7
f  11//6 14//7 12//6
f  13//7 15//8 16//8
f  13//7 16//8 14//7
f  15//8 17//9 18//9
f  15//8 18//9 16//8
f  17//9 19//10 20//10
f  17//9 20//10 18//9
f  19//10 21//11 22//11
f  19//10 22//11 20//10
f  21//11 23//12 24//12
f  21//11 24//12 22//11
f  23//12 25//13 26//13
f  23//12 26//13 24//12
f  25//13 27//14 28//14
f  25//13 28//14 26//13
f  27//14 29//15 30//15
f  27//14 30//15 28//14
f  29//15 31//16 32//16
f  29//15 32//16 30//15
f  31//16 1//1 4//1
f  31//16 4//1 32//16
f  1//1 33//17 2//2
f  2//2 33//17 5//3
f  5//3 33//17 7//4
f  7//4 33//17 9//5
f  9//5 33//17 11//6
f  11//6 33//17 13//7
f  13//7 33//17 15//8
f  15//8 33//17 17//9
f  17//9 33//17 19//10
f  19//10 33//17 21//11
f  21//11 33//17 23//12
f  23//12 33//17 25//13
f  25//13 33//17 27//14
f  27//14 33//17 29//15
f  29//15 33//17 31//16
f  31//16 33//17 1//1
f  4//1 3//2 34//18
f  3//2 6//3 34//18
f  6//3 8//4 34//18
f  8//4 10//5 34//18
f  10//5 12//6 34//18
f  12//6 14//7 34//18
f  14//7 16//8 34//18
f  16//8 18//9 34//18
f  18//9 20//10 34//18
f  20//10 22//11 34//18
f  22//11 24//12 34//18
f  24//12 26//13 34//18
f  26//13 28//14 34//18
f  28//14 30//15 34//18
f  30//15 32//16 34//18
f  32//16 4//1 34//18