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How to get rid of texture "flickering"? (Picture attached)

Slight problem, I have been recently building in UE4 but have came across a problem. As you can see below, I have assigned a texture of metal to my wall. However when I get far away the texture starts flickering, making it look terrible!

I have a few values attached to the texture such as: Metallic Roughness

Can someone please tell me how to fix this, any help will be great, thanks :D

alt text

Product Version: UE 4.9
wow.png (1.0 MB)
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asked Nov 10 '15 at 05:22 PM in Rendering

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avatar image Jacky Nov 10 '15 at 05:48 PM

What you are seeing is quite normal and it even occurs in real life depending on repeating pattern of a surface so you need to break the pattern a bit somehow if you want to get rid of it. It may also occur with unexpected textures if the texture's resolution isn't power of two(512x512, 512x1024, etc.) when the texture doesnt have mipmaps and creates noise as distance increases so keep that in mind as well.

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The term is "moire effect". Depending on how the walls are made, there may be different ways of dealing with it. Look here for a similar case: https://answers.unrealengine.com/questions/121845/moire-problems.html

  • If the building is a simple cube with textures, you may need to adjust texture filtering and MIP bias;

  • If every wooden plank is a separate mesh actor (which may bring lots of other problems, but why the hell not), then you may try adjusting antialiasing settings.

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answered Nov 10 '15 at 07:58 PM

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