when i exporting my truck object or another from blender to unity some my faces disappear in unity. I add some images for better understanding.enter image description hereenter image description here

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    $\begingroup$ probably a face normal problem. Select vertices and ctrl+shift+n to recalculate normals. $\endgroup$ – lemon Oct 15 '19 at 18:29
  • $\begingroup$ I click and nothing happens $\endgroup$ – Miłosz Oct 15 '19 at 19:42

Select all the offending mesh in edit mode and in Shading tab select Normals: "Flip Direction". Your model appears to be facing the wrong way, so when backface culling comes into play you can only see the inside. I hihgly recommend you press N in 3D view and enable Shading: Backface Culling.

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  • $\begingroup$ Doesnt work, to be more specific if i look wheel from another side i can see this "empty face" but dont see first face as before. The visibility is "change" when i change perspective. and this is only in Unity :// $\endgroup$ – Miłosz Oct 17 '19 at 17:09

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