Composite a 3D model into an image

[daveclive]

Hi all,

I am looking to composite a 3d model into an image I have taken of a studio agency.
My question is how can I composite the model realistically using C4D & Corona without using a HDRI as I only have an image?

[Beanzvision]

How do you plan on lighting it? You could probably still use an HDRI, Just need to find one similar to your studio (but I have no idea what your studio looks like) such as this: https://hdrihaven.com/hdris/category/?c=studio

And you would most likely use the shadowcatcher material for that.
https://help.c4d.corona-renderer.com/support/solutions/articles/12000042047-how-to-create-an-infinite-background-with-the-shadow-catcher-material-