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Normal map seams and Tangent / bi-normal import problem

There always some problems when using mirrored UV on assets. I know it is tangent bi-normal problem and try to fix it. Even though I adjust tangents in XSI, it seems Unreal doesn't import them correctly or is there any other way I should be aware of? FYI I enable import tangents and bi-normals in import settings without any luck. Unreal preview: alt text Before tangent editing alt text After tangent editing alt text

Product Version: UE 4.10
unreal.png (746.7 kB)
tangents_edit.png (174.2 kB)
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asked May 09 '16 at 02:01 PM in Rendering

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