[MC-1514] Extreme lag/game freeze around lighting glitches Created: 31/Oct/12  Updated: 04/May/15  Resolved: 01/Nov/12

Status: Resolved
Project: Minecraft: Java Edition
Component/s: None
Affects Version/s: Minecraft 1.4.2
Fix Version/s: None

Type: Bug
Reporter: Mike Johnson Assignee: Unassigned
Resolution: Duplicate Votes: 0
Labels: freeze, lighting, mineshaft, multiplayer
Environment:

OS: Windows Vista 32bit
CPU: Intel Core2 Duo P8400 (2.26GHz)
Memory: 4GB
Graphics: GeForece 9600M GS (1GB)
Java: build 1.6.0_37-b06 (Java 6 standard edition)


Issue Links:
Duplicate
duplicates MC-1018 Black Lighting under overhangs Resolved
Confirmation Status: Unconfirmed
Game Mode: Survival

 Description   

Primary Problem: Encountered dark spots under mineshafts hanging mid-air in SMP, game appeared to freeze for a few seconds. Correct shadows would be shown when game resumed. Vulnerable to hostile mobs while game was "frozen."

Full description: I was playing on SMP running a sand flatland world with mineshafts enabled. Underneath the mineshafts I frequently encountered lighting glitches (dark spots) where many hostile mobs had spawned. Once I got close enough, the lighting would be updated but this typically caused a near freeze in game performance. After a few seconds, the game would resume at normal FPS with the correct shadows displayed. The frustrating part is hostile mobs seemed to be unaffected so that when normal gameplay resumed, I would be surrounded by mobs and already taken a few hits of damage. Attempting to run away resulted in running into more glitches/more game-freezes and I would die.



 Comments   
Comment by Talven81 [ 01/Nov/12 ]

Agreed however these are two symptoms of the same problem. Once they iron out the recoded lighting, to not have a serious impact on low performance machines, it should fix both symptoms.

Comment by Mike Johnson [ 01/Nov/12 ]

I understand why Talven marked this as a duplicate for the "black lighting" bug but I don't believe the two should be merged. The part of this bug that is most detrimental wasn't the improper rendering of light in the first place, but the extreme lag/game freeze caused by updating the lighting.

Comment by Talven81 [ 31/Oct/12 ]

Duplicate of MC-1018

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