Previews rendered in 3ds Max 2012 using V-Ray 2.4. 3 material V-Ray and 1 texture (1024 x 1024) maps displace. The polygon count can be adjusted in Max files, reducing or increasing the iterations from TurboSmooth modifier. TurboSmooth Iterations 0: polys - 1372, verts - 1320 TurboSmooth Iterations 1: polys - 10745, verts - 5382
3ds, fbx and obj file is in one resolution without TurboSmooth: polys - 1372, verts - 1320.
3ds, fbx and obj files are without materials.