I have this problem, where some models would be darker than others, even when top of a light. I have lightgrid volume all over the map, working caulkbox and reflection probes. This is what I mean:

All pipes are touching brushes at some way, so brushes are not causing it

I have the same thing on one or 2 models, with lightgrids over all of them and exact same conditions, yet some are lighter than others, I could not find a solution either

I have the same thing on one or 2 models, with lightgrids over all of them and exact same conditions, yet some are lighter than others, I could not find a solution either

I have it in so many places its annoying 

do you have spec maps and cosine maps?

do you have spec maps and cosine maps?

And normals, yes. I thought making those would fix it, but it didnt

Do they go through any brushes or patces? If that's the case, i'm afraid nobody found a solution for that.

Do they go through any brushes or patces? If that's the case, i'm afraid nobody found a solution for that.

They all do 

Change the origin of the model or put a light in the blue square box of the model. The blue square box is seen when the model is selected. Sometimes its orange. This fixed some of my models having the same issue as you.

Change the origin of the model or put a light in the blue square box of the model. The blue square box is seen when the model is selected. Sometimes its orange. This fixed some of my models having the same issue as you.

Has anybody told you, that you are genius?

Well it's not perfect, but it's definitely an improvement

Well it's not perfect, but it's definitely an improvement

Just increase radius I had it at 50