-From e.g. MakeHuman, set scale to Meters.
-From blender, decimate until <5k tris.
-Export as OBJ: [ ]Selection only (optional) [x]Objects as OBJ objects [x]Objects as OBJ groups [x]Material groups [ ]Animation Scale: 1.0 Path Mode: Copy (<- IMPORTANT) Forward: -Z Up: Y [x]Apply modifiers [x]Smooth groups [ ]Bitflag smooth groups [x]Write normals [x]Include UVs [x]Write Materials [x]Triangulate Faces [ ]Curves as NURBS [ ]Keep Vertex Order