I believe you must model the backplate and project the bg-image to that.

Thanks @Builtdown ... been there & done that. Results are poor because of how all other lighting within a given scene effects the Octane backplate "material".

What I'm after is for Octane not to mess with anything regards ...

How can I get background images in LW 3D to be effected by Octane vignette settings and have the glare/bloom coming from a 3D object in the scene to show on the image?

This is a major pain.