Command created blocks update light level?
I am playing minecraft 1.8 vanilla while creating a mob spawning room I have used commands to fill the required blocks. the room seems to be complete but with one issue. you can see the light level 15 in the snapshot. However the room is totally concealed.
When I fill the blocks manually the light level goes down to 0 as expected.
so by using fill command why does the light level does not fall to 0
Best Answer
This is a common bug that happens to me all the time.
I have a few way of fixing these:
Firstly, placing blocks (in particluar light emitting blocks) around the glitched light patches should fix the problem.
Secondly, if placing blocks doesn't work, try reloading minecraft and the world. Another thing I have found useful is to set your render distance to 2, then press back to game... and then put your render distance back up to 10-16 to fix.
Thirdly, if that doesn't work you can use McEdit to fix the glitched light blocks
Pictures about "Command created blocks update light level?"
How do you change the light level on light blocks?
Right-clicking a light block with another now changes its light level by 1.How do you change the light level in Minecraft?
If a torch with light level 14 is placed on the floor, the light level of the adjacent floor blocks in all four directions is 13, while the diagonal blocks in all four directions have a light level of 12 (14 minus 1 south, minus 1 east).Minecraft Dynamic Lighting/Realight (Command creation)
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Mateusz Dach, Vanessa Loring, Elaine Albuquerque, Lukas Rodriguez