Blender Exported Mesh Artifacts

[TheAshi]

I've recently modelled this train, but when I export it these are the results. I have no idea how to fix this, as I think the UV maps are good. The model is seperated into seperate meshes and 5 UV textures. Any idea how to fix this?

[Cyril Dellenbach]

Hi @TheAshi,

Nice looking model and thanks for the question.

This really seems like a UV issue. It's possible that some of the UVs are too small or too packed, creating these blurry artifacts.

Can I have a look at the UV maps?

Keep me posted.

[TheAshi]

Hello, thank You for your response,

here are the UV maps and what they cover, the first one covers the front and back wheels, and the "shell" around it, and the second one covers the rest of the model, which is the top portion, the base and the small tanks undearneath the base. The second UV map has a texel density of 76,86% and the first one has 66,78%.

[TheAshi]

I was experimenting and sort-of fixed it, by getting some meshes into another material, didn't know why that didnt work earlier, but now most of the artifacts are gone, while some of them still remain.

[TheAshi]

While the issue on the main "shell" has been resolved, the smaller parts, such as headlights now have this issue. Any idea how to fix this? The texel density is 84,25% and is itself a seperate UV map.