Unlink light / break connection

Hey!! I was wondering how can unlink light or break the connection of a light in cycels I want my light to effect an object but not the limbo or ground is there something I can do ??

thanks for you help

I guess, the best would be arranging several layers and determine which layer should get light from another one so that you can accordingly add lights to your objects.

After rendering is done, may use compositor to combine render outputs.

Here there’s a video tutorial about layers-collections that might be useful for you;

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Ty so much