Hi bigben,
thx for your support and your *.tgd file.
Compared with your file I see no difference with my settings, but my final is completely poor.
I have uploaded 2 samples.
At first I create a new planet (moon), it get new sizes.
Then I load the *.tif into the chan file.
I `ve tried two different surface shader, but no crator is created in the render.
Where is the mistake.
Thx for every advice.
cheers