Btw a strange happening ...

In Wilbur I can see a nicely rendered view of the terrain , it seems to me that also heights are lighlty shadowed, can this be influenced anyway ? Without going to FT I mean ...

I have reproduced the similar effect using just the heightmap , render a white overlay layer with a light directional and using the alha channel of that layer with the heightmap , I set up the height and the intensity and I get the same similar shaded effect, but I notice that when I do this in the photoshop the resulting image has visible all layers of steps of the heights , while those are not visible in the heihgtmap or the Wilbur outputs, why do you think I get those stepped results in my rendering ? I saved the heightmap out of wilbur as 16 bit .