3D mesh loses polygon quality when deployed

🌵 Needle Engine
1

when loading my scence part of the mesh from my 3D loses quality, as if polygons are removed or simplified:

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It happens with some meshes, others are rendered correctly. What could be wrong?

2

Hi Pavel Ramirez,

The issue you’re encountering with some 3D meshes losing polygon quality when deployed could be related to the following factors:

  1. Mesh Compression Settings: Ensure that the mesh compression settings are appropriate. If you have mesh simplification enabled, it may lead to a reduction in polygon count. Check your settings for any “useSimplifier” or “Progressive Mesh” options that might be affecting your meshes. In your project settings, ensure these options are set correctly (see the documentation) (see the documentation).

  2. Level of Detail (LOD): If LOD features are enabled, the engine might automatically switch to a lower-detail version of the mesh based on certain conditions—like distance from the camera or performance metrics. Inspect the LOD settings and confirm if it is generating lower-quality meshes for specific viewing conditions (see deployment).

  3. Texture and Material Compression: If textures are compressed excessively, it can appear that the mesh quality is also compromised due to lack of detail in textures. Verify that texture compression settings are tailored for your needs, ensuring a balance between performance and quality (see deployment).

  4. Export Options: Review your export settings to ensure that they allow for the quality you expect. Some export workflows allow for optimization that includes simplification or reduced quality settings that might not be desirable for all meshes (see deployment).

  5. Mesh Verification: Lastly, double-check the original meshes in your 3D modeling software for any inherent issues before exporting. Sometimes the problem might stem from the source model itself.

If you can share specific settings related to mesh compression and LOD, that would help in further diagnosing the issue. Also, using the Needle Viewer (link can be provided if needed) to inspect the problematic meshes may give you insights into their properties.

Let me know how I can help further!

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3

Hi, could you share the original mesh with us so we can inspect it? It looks like a bug in either optimization or LOD selection.
You can send a bugreport in Unity from the scene via the menu item Needle Engine/Report a bug.

Thanks

4

Hello,

Thank you for your reply. I just fixed it using this post:

Thanks again!

5

Hi, that’s good to hear - would be great if you could still provide the model so we can fix the underlying issue! :slight_smile: @Pavel_Ramirez I only need the model for debugging