[HELP] Morph in Max revert my adjusted vertex normal

minusan · Dec 2018

Hi there：

When I export the mesh with morph in max, my adjusted vertex normal just been revert to the default version, but in Max, it’s no different, but after I check the mesh in blender and Unity, the problem shows like the image below:

The face on the left is the mesh with morph, but it lost the vertex normal information I adjusted; and the face on the right is without morph, but contains the adjusted vertex normal.

I am so grateful if anyone know how to fix this.

Image: https://us.v-cdn.net/5021068/uploads/editor/d9/p879n5kpp9jx.jpg

Eric Chadwick · Dec 2018

How are you exporting the model to Unity? What is in the modifier stack in 3ds Max?

minusan · Dec 2018

I use fbx file, and my setting is：

Image: https://us.v-cdn.net/5021068/uploads/editor/gl/98dyr91jvank.jpg

Eric Chadwick · Jan 2019

Ah, you can't use any modifiers above Skin, they generally won't export at all. I'd suggest editing the normals directly above the Editable Poly modifier.

Also, the Morpher modifier probably won't transfer under the Skin. This is something you should setup directly in the game engine.

gucheng0712 · Nov 21 2025

Hello, Have u solved this issue. Im encountter the same issue for my anime character face

Eric Chadwick · Nov 21 2025

Maybe the solution here will help you. (I searched Google for "unity skin morph" to find this, and this link was the third search result)
https://forums.autodesk.com/t5/3ds-max-animation-and-rigging/morph-and-skin-fbx-3ds-gt-unity-issue/td-p/8508081

[HELP] Morph in Max revert my adjusted vertex normal

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