static void create3DGround()
{
GameObject ground = new GameObject("3DCurvedGround");
CurvedGround3D curve = ground.AddComponent <CurvedGround3D>();
ground.AddComponent <MeshFilter>();
ground.AddComponent <MeshRenderer>();
ground.AddComponent <MeshCollider>();
curve.addPointAtPosition(new Vector3(1, 30, 0));
curve.addPointAtPosition(new Vector3(10, 40, 0));
curve.addPointAtPosition(new Vector3(20, 30, 0));
setDefaulMaterial(ground);
curve.renderCurveMesh();
Undo.RegisterCreatedObjectUndo(ground, "created 3DCurvedGround");
}