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Why are my FBX imported meshes scaled differently?

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Build Type: Source build of 4.12.5 from GitHub, compiled on Linux AMD64 w/GCC 4.9.3

Build Version: 4.12.5-0+UE4

Detailed description of the issue: I have a Blender model consisting of two meshes that is correctly displayed in Autodesk FBX Review, Visual Studio and the Unity engine. In Unreal Engine, one mesh is imported at the correct scale, the other is 100 times too small. Neither mesh contains a scaling factor.

The import scale factor I can set in Unreal Engine only effects the cube, not the cage.

Screenshots/Link to video: Here is the model in Blender. Notice that both meshes have their scale applied (= baked into the vertices)

Model in Blender

This is what I get after importing in Unreal Engine 4.12.5:

Same model in the Unreal Engine

Repro Steps:

  • Download the model I'm using: UnrealImportScaleProblem.zip

  • Import or reimport the .fbx model in Unreal Engine and see the scaling issue.

  • (Optional) Open the .blend file in Blender, export to .fbx again, get the scaling issue.

System Specs:

  • Gentoo Linux, AMD64, Kernel 4.4.6,

  • KDE5 and proprietary NVidia drivers 367.27

  • Blender version 2.77 and Unreal Engine 4.12.5 compiled with GCC 4.9.3

Product Version: UE 4.12
Tags:
unrealimportscaleproblem-blender.png (116.3 kB)
unrealimportscaleproblem-engine.png (192.3 kB)
unrealimportscaleproblem.zip (354.7 kB)
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asked Aug 14 '16 at 08:53 PM in Bug Reports

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cygon
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Hi Cygon,

Thank you for the report. I've submitted a ticket for this to be investigated. You can follow the status here: https://issues.unrealengine.com/issue/UE-34690

Thank you!

Tim

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answered Aug 15 '16 at 06:01 PM

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Tim Hobson ♦♦ STAFF
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