2 low poly rock formations, 810 and 758 triangles.
High Poly sculpted in blender, low poly manually retopologized, maps baked in xnormal with a cage.
Sketchfab Preview: https://sketchfab.com/show/3715ac75b61e4a6bb65b8b7547956bb3
Blendswap Download: http://www.blendswap.com/blends/view/71296
