mtllib multiMaterial.mtl

# Billboard

# positions
v -2.94249 18.5768 3.27633
v 1.72414 18.9233 -3.20162
v 2.74428 -0.499733 -3.50576
v -1.92235 -0.846268 2.9722


# normals
vn 0.810085 0.0333816 0.585361
vn 0.810085 0.0333816 0.585361
vn 0.810085 0.0333816 0.585361
vn 0.810085 0.0333816 0.585361


# texture coords
vt 0 1
vt 0 0
vt 1 0
vt 1 1

usemtl mat_0

# faces
f 1/1/1 2/2/2 3/3/3
f 1/1/1 3/3/3 4/4/4


# Billboard

# positions
v 2.43556 18.8755 2.23745
v -3.6539 18.6246 -2.16274
v -2.63377 -0.798466 -2.46688
v 3.4557 -0.547535 1.93331


# normals
vn 0.583961 0.0433639 -0.810622
vn 0.583961 0.0433639 -0.810622
vn 0.583961 0.0433639 -0.810622
vn 0.583961 0.0433639 -0.810622


# texture coords
vt 0 1
vt 0 0
vt 1 0
vt 1 1

usemtl mat_1

# faces
f 5/5/5 6/6/6 7/7/7
f 5/5/5 7/7/7 8/8/8