I downloaded an object files with vertices in below format
v 10.7732 58.0762 288.7190
then faces in the below format
f 2618/3145/721 2646/3174/721 2683/3219/721 2619/3146/721
Now, i;m confused on how the face format works, will someone interpret this for me?
Yes.
Each vertex has a vector which is indexed i=1..n and it defined by
v X Y Z
where each X, Y, Z are the real coordinates of the vertex.
Similarly with normal vectors
vn X Y Z
And with texture vectors (2 coordinates)
vt X Y
And with parameter vectors (? coordinates)
vp X ...
Each face has 4 triplets of indexes
V is the three vertexes of the face defining a triangle, using the vector index. So 1/2/3 defines a triangle with coordinates v(1), v(2) and v(3).VT for each vertex of the face this is the texture vector. So 1/2/3 defines three vectors vt(1), vt(2) and vt(3).VN for each vertex of the face this is the vertex normal. So 1/2/3 defines three vectors vn(1), vn(2) and vn(3).VP for each vertex of the face this is the parameter vector. So 1/2/3 defines three vectors vp(1), vp(2) and vp(3).