Way to "blend" meshes together?

:information_source: Attention Topic was automatically imported from the old Question2Answer platform.
:bust_in_silhouette: Asked By dizzy

I’ve been playing with multimeshes making a terrain system using them. I’ve noticed when meshes are next to each other and not connected by their verticies, from a distance, they start look grainy.

Examples:

What would be a good way to remove these lighting/shadow artifacts? They end up looking like seams between the meshes and I would like everything to look smoother.

My initial thoughts are to use shaders, but I’m unsure where to start as I have minimal shader experience.