The terrain is created and rendered, but due to limitations with World Machine and memory I can only work with areas 150 x 150 miles, so merging them properly is a key part of being able to do this. After years of trial and error it is still a struggle, but the results are getting better and better. I’ve now created the Shield Land tile, and all its neighboring tiles and blend them together. The results are 90% satisfactory right away, but with a few key issues needing manual editing to fix.