Well, at that resolution of course they'll be pixelated. They're only pixels, after all. If you zoomed in on that image and looked at the green and red channels each on their own, you'd see that it's nowhere near as smooth as it appears at first glance. The only way you're going to get "less pixelation" in this case is to…
It may not be possible in this case, but you can model the circle entrance as a 'strip' instead of a circle, and it will reduce the pixelation artifacts by a ton. To get a sharp diagonal line on a normal map texture you need lots of resolution, to get a flat line on a normal map you need much less (and it will look better…
I am having some issues with my normals transferring on my model. I planar mapped the side of the sphere where I want my normals to transfer. As you can see my normals are getting pixelated and just not transferring very well. I am also getting an issue with the normal and the UVs seem to crop the outer edges off the…