How to do partial post-processing in the scene
How to do this? It seems that it uses the function similar to post-processing volume to change the local color or do some effect processing
It is possible to do partial PP, but I don’t think that’s what is going on here. It’s not a cheap process to run. If you want to know, it works like this:
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But I think this function parameter panel of this person seems to be the parameter panel of post-processing volume. Shouldn’t he use materials to modify the scene locally?
And he has a gradual change
Agreed…
I don’t see a details panel.
He just changes the panel parameters in the lower right corner, and simply darkens the area
Yes, I just check the vid, he’s changing the color of a mesh, not part of the ground. It’s just a mesh in the scene.
But the parameter panel he modified is similar to the parameter panel of post-processing volume
It’s just a color parameter, they are on everything. I think in fact you can see him move the mesh just before you see him change the color.
If you want to be more specific, give me a link to the video and a time 
This is the video link
Please help me to have a look
See this post where they talk about it:
It’s what I said, localized post process, the tutorial is above.