Hello!
There is the function of seamless distribution NanoTile Textures (http://www.zbrushcentral.com/showthread.php?192878-NanoTile-Textures!-unofficial-Information-Installation) in ZBrush, which can also bake textures straight to.
If this function is adopted to the Corona Scatter, it will be a good alternative for the people who create seamless textures to work and bake in Corona Renderer.