rex engine: turning off of blending of tiles between levels of detail

What I am seeing is multiple levels of detail being blended into the displayed map. This sometimes makes it difficult to read text or view a map. The effect is shown in this screenshot:



I would like to turn off the blending of multiple levels of detail, using only the most detailed available. How would I achieve this?

i am using the attached earth file.
openseamap.earth

osgEarth 2.10 version.

Like this:

<map>
   <options>
      <terrain>
         <morph_imagery>false</morph_imagery>
      </terrain>
...

Hope this helps.

Thanks that worked.

I also moved all my options into one single block.

That is wise, because multiple options blocks won't work :)