> As real world altitudes stretch from -422 (Dead Sea) to 8848 metres (Mt. > Everest) and I applied the composite texture_map (see code below) > *after* scaling the heightfields, I used height values in metres rather > than the common relative values from 0 to 1.
I don't think any pattern can yield values > 1.0.
Try dividing all values in the map by 1200 and
using "gradient 1200*y" instead.
