Relief mapping is highly comparable in both function and approach to another displacement texture mapping technique, Parallax occlusion mapping, considering that they both rely on ray tracing, though the two are not to be confused with each other, as parallax occlusion mapping uses reverse heightmap tracing.
Relief mapping is comparable in function and approach to another displacement texture mapping technique, Parallax occlusion mapping, as both rely on ray tracing. However, they are distinct techniques, with parallax occlusion mapping employing reverse heightmap tracing.