Mid-Roughness noise

Development Rendering
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1

Hi there,
everytime I make a simple material with a roughness set in a middle value, to have a sort of blurry reflection (about a 0.3-0.4 value), I see the material in good quality only if I’m really near, as soon as I move far it starts to become all noisy: if you use a metal material you can see the problem even better! Is there a way to set the radius where the material quality drop?

Thanks in advance

2

Screenshot? Also what scalability settings are you using?

3

91169-noise.jpg
91169-noise.jpg1272×894 139 KB

NEAR

91170-noise-01.jpg
91170-noise-01.jpg1272×894 167 KB

FAR

I left all the scalability settings as they are on default, so all epic, resolution 100%, high quality for materials, I even tried to push in the post-process volume

  • Screen Percentage 200
  • SSR Intensity 100
  • SSR Quality 200
  • SSR Max Roughness 1.0
    they don’t give any significant result for the noise
4

I’m not at my computer at this second but this makes me wonder if it’s a texture LOD issue. As a test you could set the texture in your roughness and maybe you’re normal to use no mipmaps and see if that helps.

5

I haven’t any texture, normals neither LOD set in those materials (I haven’t set LOD at all in all my project)

6

The solution for me was to delete two console variables on render options:
r.Lumen.Reflections.MaxRoughnessToTrace 1
r.Lumen.Reflections.Temporal 0

I check some youtube video for best render settings but those two variables was causing the noise problem with mid range roughness values. I deleted both and get way better results.

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