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  1. Minecraft: Java Edition
  2. MC-12558

Light leaking through corners with Smooth Lighting on

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • None
    • Minecraft 1.5.1, Snapshot 13w16a, Minecraft 1.5.2, Snapshot 13w19a, Snapshot 13w21a, Snapshot 13w21b, Snapshot 13w22a, Snapshot 13w23a, Snapshot 13w23b, Snapshot 13w24a, Snapshot 13w24b, Snapshot 13w25a, Snapshot 13w25b, Snapshot 13w25c, Snapshot 13w26a, Minecraft 1.6, Minecraft 1.6.1, Minecraft 1.6.2, Minecraft 1.6.4, Minecraft 13w36a, Minecraft 13w36b, Minecraft 13w37a, Minecraft 13w37b, Minecraft 13w38b, Minecraft 13w38c, Minecraft 13w39a, Minecraft 13w39b, Minecraft 13w41a, Minecraft 13w41b, Minecraft 13w42a, Minecraft 13w42b, Minecraft 13w43a, Minecraft 1.7, Minecraft 1.7.1, Minecraft 1.7.2, Minecraft 13w47e, Minecraft 13w48a, Minecraft 13w48b, Minecraft 1.7.4, Minecraft 14w02b, Minecraft 14w02c, Minecraft 14w03b, Minecraft 14w04a, Minecraft 14w04b, Minecraft 1.7.5, Minecraft 14w11b, Minecraft 14w30c, Minecraft 1.8, Minecraft 1.8.1-pre3, Minecraft 1.8.7, Minecraft 1.12 Pre-Release 7, Minecraft 1.12.2, Minecraft 1.13-pre2, Minecraft 1.13-pre3, Minecraft 1.13, Minecraft 18w31a, Minecraft 1.13.1-pre1, Minecraft 1.13.1-pre2, Minecraft 1.13.1, Minecraft 1.13.2, Minecraft 18w43b, Minecraft 18w43c, Minecraft 18w44a, Minecraft 18w45a, Minecraft 18w47a, Minecraft 18w48a, Minecraft 18w48b, Minecraft 18w49a, Minecraft 18w50a, Minecraft 19w03c, Minecraft 19w04b, Minecraft 19w12b, Minecraft 19w13b, Minecraft 19w14a, Minecraft 19w14b, Minecraft 1.14 Pre-Release 2, Minecraft 1.14 Pre-Release 3, Minecraft 1.14 Pre-Release 4, Minecraft 1.14 Pre-Release 5, 1.14.4, 19w46b, 1.15.1, 1.15.2, 20w10a, 20w17a, 20w21a, 1.16 Pre-release 2, 1.16 Pre-release 5, 1.16 Pre-release 7, 1.16.1, 20w28a, 20w29a, 20w30a, 1.16.2 Pre-release 1, 1.16.2, 1.16.3, 1.16.4, 20w51a, 21w03a, 1.16.5, 21w05b, 21w06a, 21w07a, 21w11a, 21w14a, 21w15a, 21w17a, 21w20a, 1.17 Pre-release 1, 1.17 Pre-release 2, 1.17, 1.17.1, 21w37a, 1.18 Pre-release 1, 1.18 Release Candidate 3, 1.18.1, 22w05a, 1.18.2, 22w16b, 22w19a, 1.19, 1.19.2, 1.19.3, 1.20 Release Candidate 1, 1.20, 1.20.1, 23w45a, 1.20.4, 23w51b
    • Confirmed
    • Lighting, Rendering
    • Important
    • Platform

      The bug

      With Smooth Lighting turned on (minimum or maximum doesn't matter) light will spill through the corner of a block if there is a light source either behind or beneath an adjacent block.

      How to reproduce

      1. /fill ~-1 ~-1 ~-1 ~3 ~3 ~3 sandstone hollow

      2. /setblock ~3 ~2 ~2 glowstone

      3. /setblock ~2 ~2 ~2 sandstone
      4. Look at the corner with the light source behind 
        /teleport @s ~ ~ ~ -50 -10

        1. Screenshot 2021-05-31 124120.png
          Screenshot 2021-05-31 124120.png
          218 kB
        2. Screenshot 2021-05-31 124108.png
          Screenshot 2021-05-31 124108.png
          819 kB
        3. Piston head smooth lighting (1.8.7).png
          Piston head smooth lighting (1.8.7).png
          101 kB
        4. NotDark2.png
          NotDark2.png
          326 kB
        5. NotDark.png
          NotDark.png
          315 kB
        6. MC-12558.png
          MC-12558.png
          304 kB
        7. MC-12558.mp4
          3.88 MB
        8. Light Glitch 3c.png
          Light Glitch 3c.png
          71 kB
        9. Light Glitch 3b.png
          Light Glitch 3b.png
          163 kB
        10. Light Glitch 3a.png
          Light Glitch 3a.png
          75 kB
        11. Light Glitch 2 before.png
          Light Glitch 2 before.png
          108 kB
        12. Light Glitch 2 after.png
          Light Glitch 2 after.png
          331 kB
        13. Light Glitch 1.png
          Light Glitch 1.png
          109 kB
        14. crash-2013-03-21_16.08.45-client.txt
          7 kB
        15. 20w17a.png
          20w17a.png
          303 kB
        16. 2021-11-28_21.45.45.png
          2021-11-28_21.45.45.png
          522 kB
        17. 2021-11-28_21.45.30.png
          2021-11-28_21.45.30.png
          229 kB

            Unassigned Unassigned
            Awesoman3000 Connor Steppie
            Votes:
            82 Vote for this issue
            Watchers:
            35 Start watching this issue

              Created:
              Updated:
              CHK: