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Here's my video made with blender and unreal engine: https://www.youtube.com/watch?v=QPkYeqT0Jyg

https://www.youtube.com/watch?v=HG3--iTjPq0

I have a problem with plane meshes and I don't know weather it has something to do with Unreal engine or Blender. I need double sided lighting that plane would be displayed on both sides. And even if I select double sided in Unreal engine I still have transparent walls, floors and ceiling so I have to use solid shapes which takes much more time in building lighting and baking maps. For example I model a flower and I don't want to use solidify modifier but then when I export it to Unreal engine and I can't find backface culling option there and I can only see one side of leaf. [the tree is taken from another unreal project and i have no idea how they made it.]

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  • $\begingroup$ Not sure if this is what you mean but for double-sided foliage see here: goo.gl/KKLB3q $\endgroup$
    – KoolMode
    Dec 20, 2015 at 20:03

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This is a problem with the normals. Game engines will always display on only the side where the normals are pointing out. As far as I know, Blender does not allow double sided normals, so make two planes, one for each side.

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  • $\begingroup$ helix, blender doesn't allow for double sided normal, but the option "backface culling" enables the rendering of both sides. he is asking how to enable this in unity $\endgroup$
    – ruckus
    Aug 22, 2015 at 14:43
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1) Set up material in UE4. 2) Open it. 3) Select 'Double-sided' on the panel at the left.

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