Hi,
I was rendering some landscape that I made and it came out with a completely black outputpic.
I suspected that it was a mistake in the watershader.
The refractionindex was <1 (0.9971), which was made possible by just clicking the leftarrow.
Now that I set it back to =1 the render comes out normal.
Is this a normal 'feature' or did I do something that TG doesn't allow?
I had enough free memory and all that and the other settings were within normal parameters.
I'm on Win 8.1 x64 with 4GB RAM (750 MB or so free during rendering), TG 3.1 free.
Let me know if you need more systeminfo.