Do you mean like Composite Rendering? Never had much success with it myself, I find it a lot easier just to put up with the slow process of rendering everything at once.
That works fine, if the scene is too big, canvases work fine for that. Just render a few people at a time.
What I have is a tavern where I want to add tables based on upgrades. But the table I have has no shadows
. so if I just add it, it looks unnatural.
This is how the tavern looks with shadows:
This is how it looks with added a few tables without shadows:
Completely out of place.
And imagine I will Render Sophia going to those tables. She will also not have shadows.
This is one of the problems a lot of VNs have when they render a character by itself and just put it in front of a background.