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Destructible mesh has Invisible faces on Fractures (Just started happening.)

I have been using destructible meshes for months, Using the same system from Maya LT to UE4.

Suddenly when I import my meshes and convert them to destructibles, The fractures are invisible. Where as you can typically apply a material to them instead.

Does anyone have any solutions or settings on Export from Maya to Importing into UE4 for this?

On top of this, Meshes that Were okay to be imported are now importing at a 90 Degree angle, Or are importing incredibly small. I have Maya LT set up to use Centimetres as recommended.

Product Version: UE 4.13
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asked Sep 22 '16 at 08:57 AM in Rendering

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I figured it out and found the issue! After going through every single setting and reimporting / exporting the same mesh over and over again making tweaks, I finally figured out the issue. At first I was thinking it was an open mesh or a glitch to do with the UE4 importer or something weird happening, because it only effected a few meshes.

It was a fully closed mesh, But I found that a tiny overlap / clipping was occuring with one of the faces in my mesh. I was able to find this by Scaling up the mesh, Reversing the Normals and I spotted the cross hatching texture that Maya uses to display clipping faces.

TL,DR - Small very close / clipping faces after making an Extrude was causing the issue. Once they were readjusted with distance between the faces, I simply reimported the mesh and bob's your uncle. It fractures perfectly now.

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answered Sep 23 '16 at 05:30 AM

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