Can only see imported mesh from certain angles

Hello, so I have this simple mesh I’ve made in blender:

After importing it into UE4 I noticed that it’s individual faces/planes are only partially visible: depending on the angle you’re view them from.

Here is an example:

Here, only part of the faces are visible, but if you shift over a bit:


You can see some of the earlier missing faces.
And if you continue even more:


You can see a different number of faces,
I only the faces closest to you are invisible,
how can I fix this?

So, how do I fix the issue of difference faces showing different angles depending on your viewpoint? Is this a bug?

I’ve tagged this as a bug, but if it turns out that it’s my fault and I forgot to check a checkbox or something, I will untag it.

Hi Zectric,

This is not a bug, as you’ve mentioned. This is a simple modeling issue that will need to be resolved in your modeling software (Blender in this case). The normals for the polygon’s faces are flipped the wrong direction. This is why your mesh looks like it’s flipped inside out. There is no face information on the backside which explains why you can see into the model and see the faces that way.

I don’t use Blender so I can’t explain the process to flip the normal in the program. But a simple Google search should provide sufficient results to get the normals facing the proper direction.

Thanks!

  1. Select all faces of your model
  2. Select “Shading / UVs” tab
  3. Press “Recalculate”

Perfect, thanks!! I’ve been having this problem and this fixed the issue. You the real MVP.