Hello.
I'm still working on the 2nd part of my "Dunes & sandwaves" tutorial and I've got a problem.
As you can see on the two following renders, there are many dark spots that appear on the dunes at medium or long range.
I don't know where they come from, nothing in the process can explain this.
The problem appears mainly when the sun is low.
If I move the POV, the dark spots disappear and appear somewhere else. For example, if I render these areas at short range, there is no dark spot...
I tried to change many parameters (light, atmospherics, overall quality, etc.) but I can not rid off these spots.
You can find the .tgd files below.
Can you help me ?
[attachimg=1][attachimg=2]