Baking lights with 0 lights in the scene set to baked

[spring skiff]

I'm currently baking my scene and it's taking a long time to finish even though none of the lights in my scene are set to baked. I only have one directional light in my scene and it is set to realtime. What is causing this to take so long if no lights are baking?

[whole wedge]

Indirect lighting, I'd assume. Maybe non directional lights? Maybe emissive objects? Maybe something else.
Does it not say in the progress bar? There might also be some info in the editor logs.

[halcyon sequoia]

I believe every lightmap texel of a each lightmapped mesh will be casting ray samples when baking
Every punctual light component might do that as well, but that'd be more like a secondary effect

When the ray ultimately misses any object, it'll be lit by the sky / ambient light at the corresponding angle

So sky occlusion would always be calculated, as it isn't a light source but a fallback value

If your objects are in total darkness and don't need to be lightmapped, you can set them to not receive GI from lightmaps

If they're so far from any lit lightmapped surfaces that they can't even occlude ambient light, they don't have to be GI static at all