Very appreciative of this is information. I have an architectural flythrough. I used a map to control where the roads and grass get painted. With Alpha layer one layer for grass one for road. The map is a black and white that controls where the roads are where the grass is. Yes, a splatmap of sort. I am using layer blend.
“using the regular UV Coords node set to render over the whole landscape will force the texture - whatever its size to match up exactly.” Where can I put this node? I have landscape layer coords on the blended texture samples. I tried putting it in the world position offset that did not work.