The 2 projects I am working on have the same issue. When I render, the image doesn’t look smooth. After some experimenting, I turned “radiosity” off for the material and suddenly the jagged edges are gone.
(I tried, set smooth, auto smooth etc etc)
I attached 3 pics, one with radiosity on for the texture - you can see the jaggies - 2 with radiosity turned off, it’s nice and smooth, and a pic of the mesh which proves there is more than enough geometry for it to be smooth.
Why does radiosity cause this? Is there a fix?