mtllib teste.mtl

o New camera
usemtl New cameraMaterial
v 0.000000000 0.000000000 0.000000000
# type: Camera
# cameraMatrix: [654.55, 0.0, 639.5, 0.0, 654.55, 359.5, 0.0, 0.0, 1.0]
# cameraDistortion: -0.33505070209503174,0.12022607028484344,0.0,0.0,-0.020169565454125404
# rotationVector: 0.0,0.0,0.0
# maxFocalLength: 1
# cameraWidth: 1279.0
# cameraHeight: 719.0
# showFaces: True
# videofile: 
# visible: True
# nrays: 1
# ray_0: 800,500

o Triangle 1
usemtl Triangle 1Material
v 10.000000000 10.000000000 10.000000000
v 10.000000000 -10.000000000 10.000000000
v -10.000000000 10.000000000 10.000000000
f 2 3 4
# position: 0,0,0
# center_of_mass: 0,0,0
# rotation: 0,1,0,0
# active: True
# refraction: None
# type: TriangleObject

o  
usemtl  Material
v -20.000000000 0.000000000 -20.000000000
v 20.000000000 0.000000000 -20.000000000
v 20.000000000 0.000000000 20.000000000
f 5 6 7
# position: 0,0,0
# center_of_mass: 0,0,0
# rotation: 0,1,0,0
# active: True
# refraction: None
# type: TriangleObject