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How to export morph targets from blender to UE4

In blender I set a shape key and it works well. alt text

After I export it from blender as FBX and import into UE4, I can see morph targets in the mesh. alt text

But when I change the value the mesh doesn't change.

Here is my export and import setting, can someone help me where is wrong? alt text

alt text

Product Version: UE 4.17
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asked Jan 17 '18 at 08:36 AM in Using UE4

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sccdhyt
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avatar image vr_marco Jan 17 '18 at 10:00 AM

Have a look at this tutorial: https://www.youtube.com/watch?v=haQBRXjQOJQ It explains how to do what you are asking.

avatar image sccdhyt Jan 17 '18 at 10:11 AM

Yeah, I just consulted this video and did this. It still doesn't work and I don't know where is different between mine and his.

avatar image vr_marco Jan 17 '18 at 10:15 AM

When you export to FBX from Blender, can you try to check the Animation option under Mesh? And select Face for the Smoothing option so you don't get the warning mentioned above.

avatar image sccdhyt Jan 18 '18 at 03:45 AM

The Animation option and Smoothing option are only effective at FBX6.1 ASCII mode. Though I checked Animation option and setted the smoothing to face, it still didn't move in UE4.

avatar image elbriga14 Mar 15 '19 at 10:45 AM

Anyone having a problem with Blender/UE4 morph targets export, make sure to disable "apply modifiers" in the Blender FBX export; since modifiers can't be applied to meshes with shape keys, it seems to block the shape keys export.

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2 answers: sort voted first

I have no idea what you are doing wrong but I just tried the whole workflow and works properly for me. Blender 2.79 and UE4 4.18.2.

In Blender - Add a cube - Add a Shape Key for the cube. That will be the Basis shape key. - Edit the cube and turn it into a pyramid. - Add another Shape Key and call it Morph. - Export as FBX 7.4 binary with standard options (just changed Smoothing to Face under Geometries to avoid the usual Warning)

In UE4 - Import the FBX file - Since we didn't add an UV Map UE will add an auto-generated one, but that doesn't make any difference for the morph target - In the Import dialog, check Skeletal Mesh and check Import Morph Targets

After import, open the Morph Target mesh and change the slider. It shows the morph target animation.

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answered Jan 18 '18 at 06:48 AM

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vr_marco
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avatar image sccdhyt Jan 22 '18 at 02:38 AM

Thank you very much, the same FBX exported from blender works well in UE4.18.2 but still not work in 4.17.2. It seems that it's a bug in 4.17.

avatar image StrangerGwenn Nov 15 '18 at 09:07 PM

Have you tried in a more recent UE4 version since that ? Can't seem to get morph targets in 4.20.

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Try version: FBX 7.4 binary

Also set the smoothing to face if you want to get rid of the warning of ue4. Let me know if it's working.

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answered Jan 17 '18 at 08:41 AM

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Xosh project
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avatar image sccdhyt Jan 17 '18 at 08:55 AM

Thanks for the reply. I tried the FBX 7.4 binary but still has no change. And I'm sorry that can you tell me where to set the smoothing to face?

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