helix 3d toolkit - Read .obj File with Texture in WPF -

i trying load .obj file using helix tool kit code. didn't texture included .obj file.

objreader studioreader = new objreader();          model3d m3d = studioreader.read("model/2 seat sofa .obj");          transform3dgroup transform = new transform3dgroup();         rotatetransform3d rotatetrans = new rotatetransform3d();         rotatetrans.rotation = new axisanglerotation3d(new vector3d(1, 0, 0), 0);         transform.children.add(rotatetrans);         rotatetrans.rotation = new axisanglerotation3d(new vector3d(0, 0, 1), 0);         transform.children.add(rotatetrans);         translatetransform3d translatetrans = new translatetransform3d(0, 20, 0);          transform.children.add(rotatetrans);         transform.children.add(translatetrans);         m3d.transform = transform;         group.children.add(m3d); 

i using code load .obj file. mold of object should load texture