3d render not anti-aliased

Why are my 3d objects not anti-aliased in the render view? I tried to export layout image to 8k resolution but the objects are still not anti-aliased… Is there a way to fix this?

How are you rendering your 3D object in Harmony?
If you have set up the rendering through Maya Renderman
or Arnold you should have full antialiasing because we do a
deep render.

If you are just doing a normal render without having set
up the full 3D integration then what you are getting is an
OpenGL insert of the 3D object in your Harmony scene.
There is a very basic, low quality antialiasing done using
this method but it is not recommended for final output.

Sorry I’m super late but can you explain further about rendering with anti-antialiasing in the final render?