At the beginning - yes, I read other topics about dark grass and it didn't help.
I have a problem with GI using my 3D grass (3d model, spread with Skatter). As You can see, the shadows on the grass are very dark (almost pure black). I made a lot of tests and responsible for that is GI.
I changed textures, textures' brightness, opacity mask, grass model, materials (foliage/generic) etc. Same result.
I work with auto exposure (48%), but when I turned it off and incresed value, the effect is like on image 3.png.
I tried to recreate Enscape grass, but Enscape grass behaves different. Is much brighter, doesn't create black spots. When I looked from the top on each grass, on mine, I could see black circle. On Enscape grass circle is white. Enscape grass is also very bright when I looks on sun throught the grass (7.png). Both grasses look totally different in white mode.
The problem is not visible in draft mode, of course. (4.jpg). All screenshots made in Ultra quality.
Thank You for helping.
Edit: I add a few images with different exposure settings. See my next post below.