[MC-2399] Transparent blocks visually use the brighter light level that they are next to Created: 06/Nov/12 Updated: 07/Feb/18 Resolved: 07/Feb/18 |
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| Status: | Resolved |
| Project: | Minecraft: Java Edition |
| Component/s: | None |
| Affects Version/s: | Minecraft 1.4.2, Minecraft 1.4.7, Snapshot 13w04a, Minecraft 1.5, Minecraft 1.5.2, Minecraft 1.6.2, Minecraft 1.6.4, Minecraft 13w39a, Minecraft 13w39b, Minecraft 1.7.4, Minecraft 14w03b, Minecraft 14w05b, Minecraft 14w34c, Minecraft 1.8, Minecraft 1.8.1-pre2, Minecraft 1.8.1-pre3, Minecraft 1.8.1-pre5, Minecraft 1.8.1, Minecraft 1.8.2-pre4, Minecraft 1.8.2-pre5, Minecraft 1.8.2-pre6, Minecraft 1.10.2, Minecraft 16w32a, Minecraft 16w32b, Minecraft 16w33a, Minecraft 16w35a, Minecraft 17w06a, Minecraft 1.12 Pre-Release 5 |
| Fix Version/s: | Minecraft 14w04a, Minecraft 14w33c, Minecraft 18w05a |
| Type: | Bug | ||
| Reporter: | MisterSanderson | Assignee: | Unassigned |
| Resolution: | Fixed | Votes: | 19 |
| Labels: | None | ||
| Attachments: |
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| Issue Links: |
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| Confirmation Status: | Confirmed | ||||||||||||||||||||||||||||||||||||||||||||||||
| Description |
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Flower pots emit a little light, but they shouldn't. This appears to be an error. |
| Comments |
| Comment by [Mod] Sonicwave [ 07/Feb/18 ] |
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Appears fixed in 18w05a (possibly earlier). |
| Comment by [Mod] Sonicwave [ 25/May/17 ] |
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Confirmed for 1.12-pre5. |
| Comment by Joshua Jones [ 31/May/15 ] |
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I've added another attachment to show that even if you light the top of the door it still doesn't match the brightness of the bottom. I can't see how this isn't a bug because both halves need to look a similar brightness in the same way as the blocks on the wall next to it.
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| Comment by KingSupernova [ 31/May/15 ] |
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Joshua, I don't think that's a bug. When the door is closed, the bottom block of the door is closer to the light source, and so is brighter. |
| Comment by Joshua Jones [ 31/May/15 ] |
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I've added some screenshots of this happening very noticeably with doors in 1.8.6. In my opinion this makes the bug more serious due to how noticeable it is. I think perhaps the description could do with being updated as well if this is all one bug, as it is much worse than just affecting flower pots! When closed, the bottom section of the door is brighter because of the pumpkin in the floor - even though behind the door is a torch. When open, both sections are lit evenly. |
| Comment by [Mod] Sonicwave [ 02/Feb/15 ] |
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Confirmed all the way up to 1.8.2-pre6. |
| Comment by [Mod] Sonicwave [ 25/Nov/14 ] |
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Still in 1.8.1. |
| Comment by [Mod] Sonicwave [ 04/Nov/14 ] |
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Confirmed for 1.8.1-pre3, becomes extremely problematic as seen in attached screenshot (with tall grass). |
| Comment by [Mod] Sonicwave [ 20/Oct/14 ] |
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Confirmed for 1.8.1-pre2. |
| Comment by [Mod] Sonicwave [ 06/Oct/14 ] |
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Confirmed in 1.8. |
| Comment by qmagnet [ 19/Aug/14 ] |
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Ah yes. Difficult to reproduce but finally did see it. Just a visual bug though. Does not affect the lighting level. |
| Comment by Kumasasa [ 19/Aug/14 ] |
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Attached goodlyay's screenshots to this ticket and updated the description. |
| Comment by Sealbudsman [ 19/Aug/14 ] |
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The issue does exist in 14w34c, it was never fixed. The error occurs within gradients of light, never in total darkness, as Bad Time above mentioned. This should probably be in the description... |
| Comment by qmagnet [ 19/Aug/14 ] |
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No issue found in 14w34b. Probably fixed when |
| Comment by Bad Time [ 18/Feb/14 ] |
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I think this bug is not explained correctly. The problem is that transparent blocks visually use the brighter light level that they are NEXT to. Example pictures: |
| Comment by Kumasasa [ 31/Jan/14 ] |
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Reopened (Probably |
| Comment by Bad Time [ 31/Jan/14 ] |
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This bug happens AGAIN in 14w05b, after the "transparent blocks are much darker" bug was "fixed"... |
| Comment by Kumasasa [ 25/Jan/14 ] |
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That was reported in |
| Comment by Evan Twist [ 25/Jan/14 ] |
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The "fix" isn't any better - now they are one darker than the brightest neighboring block, even tall grass in direct sunlight! |
| Comment by Jeuv [ 03/Oct/13 ] |
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Still in 13w39b. |
| Comment by [Mod] CubeTheThird [ 26/Sep/13 ] |
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Is this still a concern in the current Minecraft version 1.6.4 / Launcher version 1.2.5 ? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases. |
| Comment by Jonathan Haas [ 27/Jan/13 ] |
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Note that the summary isn't completely correct. If the light source is below the transparent block , the brightness of the transparent block is usually one light level below the light level it's supposed to be. I added some screenshots to make this problem more visible. They are made with smooth lighting off in an enclosed cube of iron blocks. |
| Comment by MisterSanderson [ 27/Jan/13 ] |
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Now that it was renamed I see that |
| Comment by Tails [ 27/Jan/13 ] |
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Applies to all transparent blocks. |
| Comment by MisterSanderson [ 07/Nov/12 ] |
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Daedalus Young, to confirm that it's not an eye trick, you can cover the pot with your fingers and alternate the tabs where the images are opened, just as Jonathan Haas suggested. If you don't see the pot but you see the small difference in the light, there's no eye trick caused by contrast. |
| Comment by Jonathan Haas [ 07/Nov/12 ] |
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On a side note, this also explains why half slabs on the ceiling are often rendered too black. The algorithm doesn't take the brightness of the block below into account, so that should probably be fixed, too. |
| Comment by Jonathan Haas [ 06/Nov/12 ] |
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After playing around with this a bit (turning smooth lighting off makes the problem more visible), it seems to me, that transparent blocks are picking their visual brightness from either the block above them or one of the 4 block beside them and they use the maximum brightness from these blocks. I'm not really sure why they do that, but that's clearly the source of the problem. It could problaby fixed by just using the brightness of the block itself or if that's not possible for whatever reason, just substract 1 from the previously calculated maximum brightness to compensate for the added distance from the lighting source. |
| Comment by Kumasasa [ 06/Nov/12 ] |
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Again a contrast enhanced diff - in fact, there is a little difference around the flower pot. |
| Comment by Jonathan Haas [ 06/Nov/12 ] |
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Well there is a tiny difference in brightness on these images. Just open them in different tabs in your browser and switch between them and you should see it. I could reproduce the same thing with redstone dust, stone pressure plates, and so on. Might be either because of some rendering glitch with transparent blocks or because they are slightly darker than the background and the game applies some contrast/hdr filter to the rendered image. |
| Comment by Kumasasa [ 06/Nov/12 ] |
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Cannot see it. The slight shadow at the chest is the same. |
| Comment by [Mojang] Grum (Erik Broes) [ 06/Nov/12 ] |
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It actually doesn't emit light in a gameplay sense, yeah I do indeed notice an ever so tiny brightness increase. Actually not 100% what is causing it, I think the fact that its a tile-entity slightly offsets the lighting. Not really much of a problem though Also Jon; get better diff-tools |
| Comment by Daedalus Young [ 06/Nov/12 ] |
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I don't really see it either. |
| Comment by MisterSanderson [ 06/Nov/12 ] |
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Jon, if you open the images in the full size you'll can see the small difference. I used both a LCD and a LCD LED screen to see it. |
| Comment by Chalmes (Jon) [ 06/Nov/12 ] |
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I don't see it? I ran the two images through a difference filter, and there's precisely two differences between those two images. One has a flowerpot (only the pixels showing the flowerpot have changed, nothing surrounding it), and a tiny piece showing through the door is different. |