I imported the 3DS Max Datasmith-exported file into Unreal, but I encountered texture problems. The file appears fine in both 3DS Max and Cinema4D, but when imported into Unreal, the issues persist. How can I solve this problem? What could be causing it? I also attempted importing through Cinema4D, but encountered the same problem in Unreal.
@UnrealPaul
any idea?
Hi, I’m still new to Unreal Engine, but I’ve seen this effect on simpler geometric objects. It looks like one side of the leaves remains transparent.
I was able to find some information:
If you’re encountering issues with transparency on one side of a 3D model in Unreal Engine 5, you can try the following steps to address the problem:
- Check Normals. Ensure that the normals of the mesh are facing outward correctly. In Unreal Engine, inverted normals can cause rendering issues, including incorrect transparency. You can visualize and correct normals in your 3D modeling software (e.g., Blender, Maya, 3ds Max) before exporting the model.
- Double-Sided Materials. By default, Unreal Engine only renders one side of a polygon. If your model needs to be visible from both sides, enable double-sided rendering for the material assigned to the mesh. In the material editor, select the material node and enable the “Two Sided” option under the Material section.
- Geometry Simplification. Complex geometry can sometimes cause rendering issues, including transparency artifacts. Simplify the geometry of the mesh if possible.
Can I share a file? If you have the time, please check it. I’d appreciate any help! I’m at a learning stage
Yes, of course!
But first of all try to fix it yourself, as it might be faster than you sending me the sources.
I tried to replicate your problem and after disabling the “Two Sided” property I got something similar. (I took the model from the “Quixel Bridge” collection) Check your materials, and if it doesn’t work, send me a link to the source and I’ll try to help you.
Example:
Thank You very much, 
thank you @UnrealPaul
