Line 3:
Line 3:
It uses LEEP optics.<ref name=vrwiki />
It uses LEEP optics.<ref name=vrwiki />
−
The 3D tracking uses a [[Polhemus] tracker.<ref name=vrwiki />
+
The 3D tracking uses a [[Polhemus]] tracker.<ref name=vrwiki />
It was released June 7, 1989.<ref name=vrwiki />
It was released June 7, 1989.<ref name=vrwiki />