How do I create a classic grayscale render look in cycles?

[Dooto (George)]

I’m trying to render out my scene in grayscale. Like this:

Or this:

We all know this look. I love it. But how do you do it in Cycles?? I’ve looked this up and it doesn’t seem easy/straightforward at all.

Any help would be great!!

thx

George

[Matakani]

Add a clay material to something.
Select it here…

Render.

[Dooto (George)]

you’re my hero!! thank you so much

[skuax]

Mark it as solution for a better website navigation and search experience.
Happy blending.

[Okidoki]

Or… ( just to give some alternative )

Edit: Ohh… adding an output node you can also make both images (color/grey) in one go…