Is there a way to have light 1 only affect object 1, and light 2 only affect object 2 etc? I thought the composition tag might help but in a quick test (2 objects and 2 lights) I couldn’t get the lights to behave as I’d like. Before I start building out my scene I thought I’d check if I can do this the Corona.
Thanks
Every Light you put in your scene has an “Include/Exclude” tab in Attribute Manager… use it wisely 
And, if an issue occurs, here’s an existing thread on the Topic: [Light include / exclude issue](https://forum.corona-renderer.com/ Light include / exclude issue )
Have a great day