Somewhere in the post, he mentions: "This is just not true. The authors at Oculus never had access to the Id C++ VR code, only a tiny bit of plaintext shader c

Somewhere in the post, he mentions: "This is just not true. The authors at Oculus never had access to the Id C++ VR code, only a tiny bit of plaintext shader code from the demo." So it seems like it's not only code he wrote, but code other people at Occulus wrote too?