Epic always claimed specular in Unreal Engine 4 was a legacy feature. Not related to specular you see in other engines/renderers. Of course, it doesn't stop people from using it. I remember it being useful when I wanted to render grass.
Hi I never understood the relationship of roughness and specular. I'm creating textures in Substance Designer with a roughness/metallic workflow. In unreal Engine however I still have the specular plug-in. Would I use this to further add to reflectivity effect or would I just keep it at 0,5 overall? I mean, isn't the…
Roughness map and specular map serves to different purposes. Yes, sperular in Unreal is different from what it would be used for in another renderers. Its default value is 0.5, that is going to give you the non metal reflectivity (~4%). However, you can use it enhance/reduce reflectivity, but its not required in the most…