Minecraft Forums

I don't know if my issue has been mentioned In other topics. I don't visit here too often.

I've noticed that the new lighting effects have made my game lag, and causes sand and gravel to disappear once it starts to fall and then it reappears.

I was making a slime farm earlier and I had torches all over the walls and a few in some corners. When I started to mine an exposed pile of gravel with a diamond shovel, I started at the top, so I wouldn't have the weird disappearing gravel as it fell. Anyways, as I went from side to side the gravel would start to flicker in tones and the game would start to lag. My only solution for this was to use an iron shovel or mine slower with the diamond.

Sorry if I seem Incoherent in my writing. I never know how to stop thinking.....see ****.

There is a lighting issue which can hammer performance. 4J has acknowledged that, and hopefully will fix it. In general, though, other than the glitchy sand, gravel, pistons and anything that pistons move, I have few technical issues with movement. I haven't seen any major lag except when first exploring my world. Once that was all mapped out, the stuttery frame rate went away. Only rain can cause annoying frame-rate drops for me. I do notice a hesitation every few seconds when moving by rail, but nothing too jarring. By and large, the movement is very smooth.

I'm not talking about redstone and its bugs here. That is an entirely different, painful subject, one I hope gets addressed soon.

I concur that lighting can do "something" odd to frame rate. I was recently working on a large lighting project in a remote corner of my map and suffered tremendous lag (well - slow chunk re-draw is actually a more appropriate description) as I traveled back to my main base near the middle of the map. Once I finished the project and quit changing the lighting, I had one more bad trip and then everything settled back down.

I wonder if the game is coded such that every change in lighting has to be checked for propogation across the entire world (or at least a large portion of it) even though the light from torches only travels 14 block give or take?