Lighting glitch, direwolf20 mod pack

[Fumle]

Hey there, i have a problem with lighting, i have built a room underground, and natural light apears through the ceiling. I have used normal minecraft stone bricks, and on top, there are natural minecraft grass, annonce who could give me a suggestion for shag i can do to fix it

Thank you

 

[Wagon153]

I don't get this problem, so not sure how to help you. Are you sure it's natural light and not just your brightness set higher then you normally put it?

 

[Rotoscope]

If you were to give us a screenshot, we might better be able to help.

 

[Fumle]

here, i have F7 on, so you can see that monsters only spawn at night which is weird cause no light should be able to come in

 

[Hambeau]

Are any of your blocks either half-slabs or covers? Dire found they leak light like nobody's business. In my builds, inside Natura Redwoods, I half-slab the floors to prevent mob spawns and find I only have to light every other level, so much light gets through.

If the unseen part of the room is fully enclosed you should see mobs able to spawn anywhere. The brightness setting should have no effect on this.

 

[Cptqrk]

So, I see drawbridge blocks on the ground there, what is the light level when those blocks are up?
I'm guessing you are trying to make a mob spawner, and are wondering why there are not many mobs spawning in it, hence the questions about light levels.
Natural mob spawning works the same as it does in vanilla, so make sure to build it the correct distance from where you "normally" do your work/play to keep mobs spawning at a decent rate.
This is why most vanilla spawners are build up in the air (well, also for the drop to kill/one hit kill). If you are too close to the "dark place" the mobs will either not spawn, or spawn very slowly.

 

[Fumle]

i am trying to make an oreberry farm, i wanna fill the entire room with ore bushes, but then i want the drawbridges to open and close a "door" with Dark glass, so i can see in, but i dont want to see the natural light inside 1 of the 5 rooms
i have tried swapping out all the bricks with cobblestone, and tried to cover different areas with more cobble, but there still got light inside

 

[Fumle]

dont worry guys, i fixed it, i dont know how, but there is no yellow markers any more, and there is not coming sunlight inside. thank you

 

[Cptqrk]

I just set up some rows and use the blackout curtains to go in and out, half slab the floor for anti-mob spawning