In that case, there should be a separate thing that tells the brightness compared to a light level of 15 in the overworld or the nether.71.35.109.2521:11, 8 March 2015 (UTC)
Based on it acts the same as the overworld, I will add a note stating "Overworld or End", there is no need to add a separate thing when its the same. –KnightMinert/c21:35, 8 March 2015 (UTC)
👁 Image Calculated brightness curves for the three dimensions, during the day with brightness set to "moody". Horizontal axis is block light, vertical is sky light.
The brightness tables in the article seem to be wrong or outdated, and the implication that brightness in the End is the same as in the Overworld is certainly wrong.
We start with the world's light brightness table, from WorldProvider.generateLightBrightnessTable(). Here the Overworld and the End are the same, calculating brightness as (level / 15) / ((1 - level / 15) * 3 + 1) while the Nether (in WorldProviderHell) does (level / 15) / ((1 - level / 15) * 3 + 1) * 0.9 + 0.1. Various further manipulations are done in EntityRenderer.updateLightmap() to determine the final brightness curves as shown in the image to the right, but the bit of real interest is that it tests whether the dimension is the End and if so ignores sky light completely and recalculates block light with a different curve.
Other things of note:
A block light level is brighter than a sky light level. This is probably balanced by the fact that block lighting where you can actually see it maxes out at 14 rather than 15.
I see code to implement a slight flickering in block light levels. The image to the right uses a "flicker factor" of 0, which should be the average.
Block light level 0 in the Nether is closer to the Overworld's block light level 7.
Daylight is white, while nightlight is blueish. Block light is orangeish in the middle values.
Since the Nether's ambient lighting is basically just making block light brighter thanks to the absence of sky light, it too has an orange tinge. The End's ambient lighting has a cyan tinge.
If there were sky light in the End, it wouldn't make things any brighter. You can also see this if you summon lightning somewhere where it can't set fires: it doesn't brighten the world while striking like it does in the Overworld or the Nether.
Latest comment: 28 December 20169 comments2 people in discussion
It looks to me like as of 1.11, the default "Moody" setting makes darkness a lot darker -- in fact, similar to the effects of the Hardcore Darkness mod. 0 light means, you don't see anything! I wanted to confirm this before adding it to the page, especially as I don't have the new light-response curves, and wouldn't know how to make the graphical image showing the sky/block combination. --MentalMouse42 (talk) 03:44, 26 December 2016 (UTC)
Here's what I see (click for bigger): File:SealbudsmanLightLevels.gif <-- this is under a stone platform at night; you can see the moonlight in the background, and the total darkness in the foreground, with a torch so you can see the difference – Sealbudsmantalk/contr05:41, 28 December 2016 (UTC)
Weird -- up through 1.10.2, I was seeing much more visibility in the total darkness, which also matches what I'd been seeing in people's videos and such, say when they were mining. For that matter, it matches the current text on the page proper here: "Full darkness is about 5% brightness" In total darkness, it was difficult to see the difference between, say, stone and ore, but I could definitely see where the blocks themselves were, which I can't anymore in the game (or your GIF). (And in fact, the "Hardcore Darkness" mod was specifically developed to make that not happen.) And yes, I played on the default "Moody", I was always about leaving things as default unless I had a particular reason to change them. --MentalMouse42 (talk) 11:40, 28 December 2016 (UTC)
ETA: Combining this thread with discussions elsewhere, I have now reached the point of "if a third person tells you you're a duck...". I think that an IRL visit to an eye doctor is in my near future. :-( . -MentalMouse42 (talk) 12:19, 28 December 2016 (UTC)
Might depend on the screen and its settings?
Also my picture has debug text, so the white F3 text almost completely washes out everything else (did you notice the andesite and snow block behind the blazing white text, for instance?)
Also this is grass, which is a bit darker than stone under dim light.
Also there's a significant difference between cave darkness and moonlit darkness.
This was also taken with original lighting, not with smooth lighting. I think smooth lighting creates even more shadows?
The thing is, I myself can't see a difference between the different MC versions in your GIF. and other people have also been telling me "what change? I haven't seen any change!" What I see in your GIF is still a blatant difference from what I remember, but much closer to what I'm seeing now. Again, there's that saying: If you go out one day, and the first person you talk to tells you "hey, you're a duck!", you laugh at them. If the second person you meet also says "you're a duck", quit laughing. If a third person then tells you "you're a duck"... check for feathers.
Then too, I did just turn 50, and I have been having more problems reading fine print lately. I had been assuming that it was just the usual focusing issues that come with age, but a proper ophthalmologist can check my light/dark sensitivity, and test for gross physical issues . --MentalMouse42 (talk) 15:57, 28 December 2016 (UTC)
I wouldn't rule out a simple confabulation of memory, either; the mind can be a slippery thing. Maybe you weren't always on Moody, for instance? Maybe you always played on original lighting, and recently you switched to smooth?
As for eyesight and memories of playing on Moody lighting -- for comparison, I'm only thirty-two, (I think that means my eyes are ... okay?) and to my memory, I've mostly played in Moody as well, except that one thing I remember is that I never play Hardcore in Moody, I always play Hardcore in 50%, because the underground on Moody has always been just too pitch-black for those kind of risks.
Latest comment: 28 March 20191 comment1 person in discussion
It says, "In the Nether, sky lighting doesn't play a role since there is no source of sky light ". If this is true, then the nether section of the "lighting curves" picture should be similar to that of the Night or End (except the tint). Is there anything more to consider? BSkyWcloud (talk) 03:09, 28 March 2019 (UTC)BSkyWcloud
There's a contradiction in of Blaze spawning light levels
Indeed they do, since slabs are transparent in Bedrock. But I see nothing that contradicts that in the article. What exactly are you thinking needs to be changed? Auldrick (talk) 21:10, 29 January 2021 (UTC)
Latest comment: 23 June 202120 comments7 people in discussion
Dhranios suggested here that the page be renamed to "Lighting".
👁 Image Disagree The new light block is a specialized tool for creative-mode builders, while in-game light is a basic mechanic. For normal players, when they search for "light", they should reach this page, not be redirected by way of the new and obscure builder's item. --21:45, 14 May 2021 (UTC)
I 👁 Image Strong support moving the page only once the light block is released, if the latter is not renaned in java. - User:MetalManiacMc@~07:00
I 👁 Image Oppose moving the page, and I disagree that this wiki should blindly follow java naming conventions when Bedrock Edition has the larger installed base. The light block is called light_block internally in Bedrock; the fact that the naming is messed up in Java should not be a reason to disrupt the article locations, particularly when the light block isn't something that most players would encounter or use during gameplay, it's a specialized block of interest to map makers only. Amatulic (talk) 07:24, 15 May 2021 (UTC)
That isn't exactly the same thing. The grass/dirt path block already existed in both editions before the 1.17 renaming. The light block is a totally new thing for Java. I have no objection to my moves being reverted, though. Amatulic (talk) 17:07, 15 May 2021 (UTC)
Care to explain how "naming is messed up in Java" when it's the version that's had the Flattening and several intentional ID and display renames for consistency and the like, despite Bedrock Edition still being 10 years behind in that regard? - User-12316399 (talk) 17:10, 15 May 2021 (UTC)
Naming it "light" would still be really odd because as stated in the original post, it is only a builder's tool and most people would be looking for this page. So MetalManiacMc made a suggestion to rename it to Light (block) which in my opinion, is a lot better. Humiebeetalkcontribs17:38, 15 May 2021 (UTC)
👁 Image Strong support for letting stand Amatulic's renaming of the Light block page to "Light (block)", as suggested by MetalManiacMc. The rule Humiebee mentions is meant to avoid renaming item/block pages before the game itself does, but there is no reason not to adjust the page name for an upcoming block. --MentalMouse42 (talk) 23:04, 15 May 2021 (UTC)
Latest comment: 19 July 20249 comments6 people in discussion
All Overword monster mobs spawn at a light level of 0 now, so this should be changed in order to be more accurate. unfortuantely, I do not know how to edit the table required.Xpsupernova (talk) 18:59, 15 December 2021 (UTC)
Not totally true. Slimes spawn below level 7. But yeah, that table needs to be removed or simplified. There is information in there that has nothing to do with light. It could be converted to a list. Amatulic (talk) 00:22, 17 December 2021 (UTC)
You forgot to fix the enderman. I beleive they also spawn at light level 0 in the overworld as well. Thank you for the help on the table.Xpsupernova (talk) 07:20, 20 December 2021 (UTC)
I think I fixed the Enderman now but what do the different colors actually mean? (Oh, and I reformatted the comments here a bit) Nilbadimo (talk) 15:33, 23 September 2022 (UTC)
I agree the different colors can be confusing (undead mobs burning in sunlight should not be the same base color as mobs being allowed to spawn). If I remember to do so I might adjust them at some point.
Edit: I've just done so, simplifying the colors in both the mob and block table to red, gray, and green, and the yellow "neutral" color only for specific cases where mobs spawn under special conditions. –Sonicwavetalk21:06, 25 September 2022 (UTC)
Looks better but I have an idea: the Table offers 6 colors (2*red, 2*green, grey, orange = no/never, yes/always, unknown, neutral) and we could try to encode more information into those colors (spawn y/n, provoke-able y/n) - eg. brightRed=spawn+hostile, red=noSpawn+hostile, brightGreen=spawn+provokeable, green=noSpawn+provokeable, orange=for special cases (burn in sunlight).
Regarding the table, it still doesn't distinguish between the skylight and block light when talking about mob spawning. It simply states they spawn under 0 light, while they also should be stated to spawn undere 1-7 light with "internal skylight only" or something similar (as they can still spawn with internal skylight anywhere between 0 and 7, only the block light must be 0). I didn't dare mess with the table myself, since it's already getting a bit complicated. 178.141.76.20520:23, 3 November 2023 (UTC)
Not sure how mob spawning actually works, but I added a description for the section where the chart appears that states that some hostile mobs appear in the Overworld when the internal light level is below 7, and that the chart is in function of the block light. I don't really think mob spawning is affected by sky light, but rather by internal sky light. What else is the chart still lacking from the 1.18 changes? Bucket (talk) 03:33, 19 July 2024 (UTC)
In recent versions crops seems to grow based on sky light, unadjusted for time of day. So if block light is 0 and sky light is 15, then wheat will still grow even at night. At one point crop growth was based on internal light level, but it seems to have changed sometime between 1.8.9 and 1.16.4. See Talk:Tutorials/Crop farming. Greenpepperpasta (talk) 03:37, 7 August 2023 (UTC)
How did you test this? Are you saying that crops grow in a dark cave with no light, because the sky has light? Amatulic (talk) 23:13, 7 August 2023 (UTC)
Set time to midnight. Plant some seeds on the ground outside with no light sources. Set randomTickSpeed really high. Watch the seeds grow.
By "sky light" I mean the value shown in F3 along with block light. The sky light value doesn't change at night. The article says that plant growth is based on the "internal light level" which does adjust based on time of day. If this was true, crops wouldn't grow at night since the internal sky light is only 4 at midnight. Greenpepperpasta (talk) 20:32, 12 August 2023 (UTC)
The Mobs section only shows the light level that phantoms spawn in bedrock, in java they spawn at light level 10 and below
--PEOJII (talk) 02:45, 4 September 2023 (UTC)
How do you know this? Phantoms and any other hostile mobs spawn in thunderstorms, which have a light level of 10, but the phantom article says nothing about light level required for spawning in Java Edition, only that they spawn at night and during thunderstorms. And the light level at night is 7 or less. Therefore, the table seems OK. Amatulic (talk) 17:23, 12 September 2023 (UTC)
Latest comment: 19 July 20243 comments1 person in discussion
The chart mixes blocks that are affected by different types of light:
• Ice and snow use block light.
• Mushrooms, melons, pumpkins, bamboo, wheat, carrots, potatoes and beetroots use client light (max value from sky light and block light).
• Saplings, grass, mycelium, frosted ice and the (inverted) daylight sensor actually use internal light.
Dirt also seems to accept spread at any light level. I have also found some other mistakes with the chart:
• Snow neither forms nor melts at block light levels 11 and 10.
• Notes 4 and 5 seem to be wrong as the relevant light level is in the plant's block.
That last point I'm not so sure about, since I could be misinterpreting the notes. As far as I understand, the notes seem to suggest that if there is an opaque block above the crops, the crops won't grow, but my tests suggest otherwise.
As an extra, mangrove propagules grow at any light level, though this information isn't present in the chart. Bucket (talk) 23:45, 17 July 2024 (UTC)
The list I made is for Java Edition. Bedrock Edition has some differences, these being:
• Snow can form at level 11 and ice at level 10 (they aren't affected by the Java bugs).
• Mushrooms, melons, pumpkins, bamboo, wheat, carrots, potatoes and beetroots use internal light.
• Mycelium uses client light.
Oddly, tinted glass didn't convert grass to dirt like in Java Edition when placed on top, no idea why. Bucket (talk) 05:40, 18 July 2024 (UTC)
To the unknown editor, I moved the discussion here.
For others, here is what the discussion was:
Anonymous [Regarding to a sentence that said that crops grow at night]: "Under what conditions? How does reduced light from weather affect this? At exactly what time of day does this activate? How far in a cave does growth remain active? Possibly check the code. Reconcile with Night and Moon#Nighttime and Crop farming#Growing_conditions".
Me: "Requested info is covered in the article".
Anonymous : "Does this mean in JE that a wheat plant without block light under the direct sky in a thunderstorm at 12999 ticks (day) will NOT grow (internal sky light 6), but at 13000 ticks (/time set night) in the same thunderstorm (internal sky light 6), just because it's night, it suddenly CAN grow? What other conditions affect growth at night?".
Me: "Not exactly at night. This is just a quick summary of when crops can grow. Not until recently was stated in this wiki that crops couldn't grow at night (an old behavior, see the history). I added this so that people less interested in the technical details would know at a glance that their crops could grow at night. I guess wording can improve. What matters for whether a crop grows or not is the client light (or internal light for bedrock). Other details on how to accelerate growth can be seen on the crop farming tutorial".
I have already updated the pages that referenced the information so that it says that crops CAN grow at night, but under certain conditions. If you have any other questions, feel free to ask. Bucket (talk) 00:01, 22 September 2024 (UTC)
Note: The wiki previously stated that crops could continue to grow if they were lit up by torches. This is old behavior that is only true for Bedrock nowadays. Now crops can grow at night even if not lit up by torches, as they would only need to be "lit" up by the sky (so they still don't grow inside dark caves or rooms). I don't remember if this behavior was a bug, but it's been around since 1.13, so I doubt it will change soon.
You can test all this behavior inside the game, as it is fairly easy to reproduce and measure. No idea what the code actually says. Bucket (talk) 00:11, 22 September 2024 (UTC)
Thank you very much. Before I saw your reply, I had been re-reading the page more closely to try to find a lead I was told that I missed, and I was about to ask what the difference is between Client Light and Internal Light Level, but then I happened to see in the history tab that you were in the middle of editing at that moment. You happened to add the answer before I asked for it. Without a clear difference in value, and because the section on Internal Light Level begins by stating, "The game uses the internal light level... to compute... plant growth," I defaulted to accepting the value of Internal Light Level. Thank you. -- 2405:8100:8000:5CA1:0:0:29F:769B09:46, 22 September 2024 (UTC)
The section, Light § Blocks, states, "All the crops in Bedrock Edition are affected by internal light." Is bamboo included in that different behavior in BE? Bamboo is often considered a sapling, but it is listed on the Crops page, so that statement may appear ambiguous. Is bamboo in Bedrock Edition affected by internal light or by client light? -- 2405:8100:8000:5CA1:0:0:27A:2AA304:59, 22 September 2024 (UTC)
Yes, Bamboo is affected by internal light in Bedrock. I was indeed referring to plants under the crops article. This also means that mushrooms are also affected by internal light. I did worry that it would be ambiguous to just call them crops, but listing them separately seemed like it would make the Bedrock differences list too long and hard to read. It'd be great if you can find some better way to word it or group them. Bucket (talk) 06:45, 22 September 2024 (UTC)
Would footnotes to the words in the chart be better? But then, I would feel like I would have to clutter it up with many {{only}} templates. I guess it's better to just write it out for now so the information is published, even if it's long, and restructure the typesetting when solutions come to mind. -- 2405:8100:8000:5CA1:0:0:5D:7307:52, 22 September 2024 (UTC)
Latest comment: 24 July 20251 comment1 person in discussion
Resolved
What blocks allow light to pass by. For instance slabs and stairs. Do those reduce the light luminosity any further other than the distance? I dont know but light do pass thru those
Clear ice blocks also allow light pass by. Not sure about blue ice.
Do not confuse light-filtering blocks and transparent blocks.
As it is written in Light#Light-filtering_blocks section, the table contains a list of light-filtering blocks, which are blocks that decrease (attenuate) light level, so they are partially transparent blocks.
On the other hand, transparent blocks such as glass and iron bars have no effect on the light level.
Stairs may be transparent or opaque, but are not light-filtering.
Latest comment: 12 August 20251 comment1 person in discussion
Resolved
Based on my observations in both Java and Bedrock editions, Drowned's behavior has to do with the time, weather, and/or dimension, and not blocklight. In the day, on Java, they are passive if you are out of water, and if they hold a trident, they are neutral. On Bedrock they are all neutral at day if you are out of water. At night or a thunderstorm or in the nether or end, they are hostile. I've tried putting them in a completely dark box in the daytime and in a lit up box at night. Their behavior is based on weather and time. I suppose that is related to internal sky light, but the chart refered to block light.
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