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Importing a low poly, one color blender model


I'm totally new in the 3D world and i'm fighting when importing a simple low poly model :


The colours on this tree are only two materials. I was assuming that i didn't need any UV mapping since this is a simple case but it seems like ue4 isn't importing my materials at all.

Here are my settings:

blender export

unreal engine import

It looks like that in UE (normal since there is no material):

alt text

But i had to set the object to "moveable" otherwise it was only black (no lighting i guess)...

Would you have any insight on this?

I attached the blender file

[1]: /storage/temp/9464-tree.blend.zip

Product Version: Not Selected
tree.blend.zip (85.2 kB)
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asked Jul 01 '14 at 10:32 PM in Rendering

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I haven't been able to export/import a mesh with more than one material using the new 7.4 FBX exporter. When exporting, choose the old 6.1 FBX option from the "Version" dropdown until you're ready to create meshes using only single materials (the preferred method).

To correct the all-black mesh, your mesh needs a lightmap. That's a second UV channel that UE4 will use to lighting/shadow information. The down-and-dirty method:

  • select your object in Blender

  • click the triangle button (next to the material sphere)

  • under "UV Maps" click the + twice to add two channels (lightmap goes on the second)

  • hit "tab" to enter edit mode, select all faces ("a" twice usually does it)

  • top of the screen, switch from "Default" to "UV Editing" screen layout

  • "UVMap.001" (second UV map) is selected (left window bottom, next to grid-snap)

  • mouse over the right window, hit "U", choose "Smart UV Project", OK and you're done

  • export and re-import into UE4

There are also tutorials on the wiki page: https://wiki.unrealengine.com/Category:Tutorials

Lightmap (blender) - Video

Static Mesh from Blender

[1]: https://wiki.unrealengine.com/Lightmap_(blender)_-_Video

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answered Jul 02 '14 at 12:33 PM

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