Why does my imported mesh have invisible inside walls?

Community Community & Industry Discussion
, , ,
1

I am using 3ds max 2014 and exported as FBX 2014.

This is what it looks like in UE4, any idea how to fix this? Thanks.

2

#Two Sided

Your barrel mesh has polygon-thin walls?

If so make your mesh Material two sided (in UE4) :slight_smile:

#Material Editor

then go to the properties, do a filter for “two” and you will find it

:slight_smile:

Rama

3

Yes, you are right, my barrel mesh has polygon-thin walls. Your solution works great. Thank you.

4

@Rama, the collision does not work. How do I fix it?

5

Did you build the collision for the mesh?

  1. Open the mesh by double clicking it in the content browser.
  2. In menu bar click the “Collision” drop down menu and choose either “6DOP Simplified Collision” (for a very simple collision) or “Auto Convex Collision” (for complex and accurate collision)
6

Hi Ranbir,

The polygons that are invisible are just backwards. You can show 2-sided polygons in UE4 but this essentially doubles your polygon count for that object. Which is fine if you have that room to spare, but if this asset is going to be duplicated around your level you may not have that luxury.

The most efficient way would be to flip the polygons in 3Ds Max and then re-import the asset.

Thanks, TJ