[Unreal Engine 4] Tangent Spaces Test

A quick test on synced tangents in UE4. I've been using Handplane to generate TS normals from a given low poly mesh and object space normal map.
The test mesh has no hard edges / one smoothing group with several 90° angles so there are plenty of strong gradients in the normal map.

Max preset

Maya preset

Unreal Engine 3 preset

Blender / Mikktspace