Can confirm for 1.13pre5
Eats a lot of CPU on my server when entering parts of the world that were not entered since 1.7.10
@Jory Green
I just had the problem with more than one surfaces not updating. But I destroyed the next block before I clould make an screenshot.
@CreeperMagnet_
Thanks for the hint. I changed the title.
Confirmed (At least for singleplayer) - Creating a world in pre4 does not work. Opening a created pre3 world does work well.
Creating a Superflat World DOES work for me in pre4.
Creating a DEAFULT or LARGE BIOMES world does not work
@[Mod] Kumasasa
This is definitifly not an issue due low RAM (as I play on 8 and 16GB Machines and still get the lags). It probably IS a badly changed graphics routine and therefor a bug that makes the game unplayable on some machines for some users THAT PURCHASED THE GAME!!!
So no reason to close this...!
Christopher Andthatsit
Is describing the Problem very precisely in his post.
And yes - It happens on all of my computers too (Notebook, PC, PC2, ...) even on the new one.
I am using Java 1.8.
It happens on Linux (Ubuntu Gnome 14.04) an on Windows 7.
I can confirm this bug too.
Playing with the same settings as in 1.7.10 my framerate is about 60-70fps as long as I stand still. As soon as I start walking around, the framerate drops to 8-20 fps.
Lowering all my graphics-settings, including the resolution, does helps me to play on 12-30 fps. (fast graphics, 6 chuncks render distance, no particles, etc)
On 1.7.10 i had a framerate around 45 fps constantly.
It seams to me like world you did play on 1.7.10 and then migrated to 1.8 do have higher performance-drops.
On new 1.8 worlds framerates are a bit better...
@Pierrot Charles
[media]Smoker is craftable for me - just tried it.