Environment lighting render pass

How would i composite an environment lighting render pass onto the final image? It would provide more control on the final look of the image, but how could I use the environment lighting pass.

The AO pass is used with multiply, but how is the environment lighting pass applied?


Env. lighting acts like it says, simulates added light from the environment.

It’s good for outdoor scenes, but the render25 offers good indirect lighting (for one bounce at least), which is superior in a number of cases or can add a push to scenes using Env. lighting.

Thanks for the explanation, however, using nodes, would it be added to the final composite image using the ADD transfer mode. I just stumbled across using these different passes, and i couldn’t find any information on how to use the env. lighting pass.