you're right.
I've seen another strange thing.
Env Cache OFF
Env Cache 1.0
Is it correct that the bright part (where there is the mouse pointer) is noiser with the Env Cache?
2-Levels Env. Light Visibility Cache
Re: 2-Levels Env. Light Visibility Cache
You can reduce that noise by increasing the visibility map resolution but, most of the times, it is not worth doing because, anyway, it should clear that noise pretty fast. As you can see, the cache is more effective in penumbra/shadow area.
Re: 2-Levels Env. Light Visibility Cache
Like day and night
Re: 2-Levels Env. Light Visibility Cache
Strangely the best result come from Env.cache Quality 0.5/ . Quality 1.0 give more indirect noise.This is my tests