OK, i fixed it with a strange mix of material and light settings.
Still, unlit should mean unlit....
There should be a flag like:
pure
such that the model gets displayed allways exactly by its
texture brigthness.
So If I have a 155,155,50 colered texture in the model, I want
to always have it drawn with 155,155,50 colored pixels,
and no futher adaptions. -no matter where the camera is, or what the
lightsetting or level is like.
should be possible!