I can find green bug patterns on various places of my texture.
How can I fix this please?
Hey TAP, can you show us the material setup?
I think one of your values needs clamping. But I cant tell you which one.
Hey Luos, Thanks for helping me out!
This is the material setup. I do not really know what I’m doing as I’m new to Unreal Engine. I tried to follow this link to create displacement maps but it didn’t work so I made the displacement in blender and imported into UE.
[link text][1]
Dont worry TAP, we where all beginners at one time 
Allright, your metallic value should be “1” and not 100.
0 means no metallic, 1 means metallic.
One-minus your specular texture, and multiply it with a 0-1 value and put it in your roughness input instead of specular.
UE4 is a physically based renderer, so specular isnt as important, while roughness is the most important.
Keep in mind that 0 = off, 1 = on, and 0.5 is 50% gray.
If you use your roughness well, you might not even need the metal input
there is a node called one-minus (hold down the O-key and left-mouse-click)
which inverts values.
I personally think that you dont need the metal option, and your roughness value’s need to be more soft, less black.
I also think the texture itself has some blue values.
also, make sure your specular/roughness/AO textures have SRGB turned off.
