How to do specular hardness in cycles?

Hello. Thank you for watching my post.

I’d appreciate if you could tell me how to make scratches in the same way as he does but in cycles.

Attach the texture to the “roughness” input on your glossy shader.

Ehm. That tutorial is for Cycles…

Thank you very much!

Oh… Sorry, I should’ve watched that all. But without his answer, I might not be able to understand which represents the specular hardness…