background is not rendering black

Hello people, i am having troubles here with something very simple… i want to use corona sky as a light from environment+ i need the render with a black background+ i need reflection override on the scene from a image that is the background that i will add on the Photoshop, but the render always come with the corona sky, what i am doing wrong?

If there’s glass panes with refraction in windows, then you need to override refraction as well.

Still rendering with the corona sky :frowning: looks so simple but is not working.

Your refraction is not overriden.

Oh sorry i try now!

It works, thank’s a lot!!