Minecraft / Mods

Metaworlds Mod - Fly working worlds, zeppelines, aircrafts

Level 66 : High Grandmaster Engineer
The Metaworlds Mod essentially lets you create full minecraft worlds within the normal worlds which can have arbitrary relative positioning and rotation (yaw) and which can be moved in realtime.So this could be used to create zeppelines or flying islands or alike.

Essential features:
- The metaworlds can have arbitrary positions and orientations relative to the stationary world
- The metaworlds are fully editabel at all time just like the normal world
- Savefiles of the metaworlds are normal world saves in subfolders *1
- All the normal block mechanics should work in the metaworlds as well

*1 so e.g. you could take the savefiles of the nether from another world and use it to replace a metaworld (and fly around with it)

Difference to existing zeppelin mods:
- This mod allows any size of construct as it uses full world logics and loads as chunks
- You can move on it while it is in motion
- All the block logics still apply to blocks on the subworld at any time

How to install this mod:
1. Download the installer from the link above
2. Run the installer
3. Select your minecraft folder as target if it's not already selected by default

Requires Forge10.12.0.1047 (included).

Mod API:
This mod also provides an API which can be used to make custom controls and manipulate the subworlds and their behaviour.
You can download the API and the source code of the controller and creator blocks included in this mod from the forum entry at:
TheOfficial forum thread

After installing the mod place a SubWorldCreator block (which can be found in the same creative tab as cobblestone and should be the last block in the list) to create a new metaworld. This may take a few moments to load as it's a full-featured world being created. To move the metaworld add a SubWorldController block (which can be found in the same creative tab as wood and should be the second last block in the list). The block has a woodplanks texture right now. The SubWorldController Block can be used by right-clicking it and you can release control by pressing [Shift].

While this mod should not destroy worlds which were created without this mod, I take no responsibility for damage done to your minecraft world.

This document is Copyright ©(MMM_MasterM) and is the intellectual property of the author. It may not be reproduced under any circumstances except for personal, private use as long as it remains in its unaltered, unedited form. The provided material may not be placed on any web site or otherwise distributed publicly by other means than the download link provided in the accompanied forum thread.
Progress: 90% Complete
Game Version:Minecraft 1.7.2

Update V0.995 : 04/29/2014 1:27:16 pm4/29/14

- added dedicated server support via mcpc+ (set allow-flight server property to true to prevent players from being kicked for standing on a subworld)
- corrected block rotation when placed on a subworld
- fixed enchantment table crash
- fixed block harvesting in survival
- fixed player sticking to subworlds when falling into liquids/free falling
- fixed tracking of player capabilities between subworlds
- fixed a crash that occurred when the client disconnects during login
- fixed orientation of blocks when using the contagious subworld creator
- changed the contagious subworld creator to work diagonally as well
- changed the contagious subworld creator to include e.g. plants and snow only from below
- fixed tile entities so e.g. chests don't spit out their contents anymore

Update V0.994 : 04/15/2014 4:59:32 am4/15/14

- ladders on subworlds are working again
- added gradual decay of traction (e.g. players are not blown off instantly)
- fixed a freeze bug
- fixed chests and other tile entities not rendering on subworlds
- added stop-movement and reset-scale buttons to the admin gui
- fixed a possible cause of crashes when creating a new subworld
- more changes to improve compatibility with other mods
- subworld velocities are also saved now

Update V0.993 : 04/05/2014 8:13:57 am4/05/14

- added an administration gui (command "/mwc") to spawn/despawn and teleport subworlds
- added a world/subworld importer to import subworlds or the main world from the same or other savegames and add it as a subworld to the current world. The importer is accessible through the administration gui (command "/mwc")
- fixed entities/camera jittering when the subworld is being controlled
- fixed the subworld controller hovering the player too high in the air while taking control
- fixed the reintegrator block to prevent contagious subworld creators from immediately turning the structure back into a subworld

Update V0.992 : 03/29/2014 5:41:14 pm3/29/14

- added ingame names for the blocks and items
- fixed bug where entities in the water wouldn't interact with the water correctly
- changed render list allocation from static to dynamic
- fixed graphics glitches when advanced opengl is activated
- fixed some incompatibility problems for mods using entities' extended data storage

Update V0.991 : 03/28/2014 1:03:50 pm3/28/14

Ported to 1.7.2
Changed a big portion of the implementation

Update V0.985 : 01/30/2014 11:59:23 am1/30/14

- IMPORTANT: If you want to play with subWorlds from the previous version of this mod, you have to rename their folder in the savefolder from e.g. DIM0_SUBWORLD21 to SUBWORLD21. And if you have subWorlds in other dimensions make sure to move them from within the e.g. DIM1 folder to the main folder of that savegame.
- changed subWorld saving so they are not bound to dimensions anymore
- changed the /tpworlds command to require the same permission level as the /give command
- added block textures (thanks a lot to Kyrinon and emissaryofinfinity)
- fixed ID range warnings which were displayed in the log
- a lot of code cleanup and restructuring (still not done yet)

Update V0.980 : 01/19/2014 4:17:44 pm1/19/14

- added installer for windows (XP or newer), linux and mac(Mac OS X 10.6.8+) which also offers correct java and forge version
- fixed collision raytracing for subworlds
- fixed SubWorld Aligner making subworlds "disappear" (actually they were just tilted and moved underground)
- added more API methods
- extended contagious subworld creator so it can also create new subworlds from parts of other subworlds
- fixed TNT related crash
- fixed a crash related to TNT and arrows on subworlds
- fixed bug which caused crashes e.g. if players stand on a hopper
- fixed "illegal stance" kick (which occured especially with shrunk subworlds)
- fixed another disappearing subworld bug
- changed controller block to not allow taking control while already controlling
- added "/tpworlds" command which moves all subworlds to the user's feet (so better use this while flying)
- fixed more explosion related bugs
- added recipes to config files (important keyworlds for recipe types in the config "shaped", "shapeless", "none"(deactivates the recipe altogether))

Update V0.972 : 12/10/2013 1:22:09 pm12/10/13

- changed subworld controller to use left CTRL to go down and SPACE to go up
- adjusted block placement range on supersized subworlds
- fixed torches/ladders/etc. to stop falling off walls when converting structures to subworlds
- fixed crashes due to spawning of villages and cloud structures on subworlds
- fixed forge world load event to be triggered for subworlds as well
- improved performance for contagious subworld creator by caching block volatility

Update V0.971 : 12/03/2013 3:05:41 pm12/03/13

- added saving of rotationPitch, rotationRoll, centerXYZ and scale
- fixed setRotationPitch and setRotationRoll API functions
- some small performance improvements
- fixed crash which occured after players traveled to other dimensions and interacted with the world
- fixed jitter of subworlds' entities resting on other worlds
- fixed interaction with subworld entities (e.g. subworld minecarts - riding still teleports to wrong coordinates though)
- fixed ladders to be usable on subworlds (entity might be pulled off ladder if the subworld is in motion)
- fixed interaction with workbenches on subworlds
- adjustment to chunk loading which should decrease server memory usage for subworlds
- adjusted subworld aligner block to stop rotation pitch/roll and continuous scale changing as well
- improved chunk sending order so subworld chunks close to the player will reach the client much faster
- added get-/setScaleChangeRate to the subworld API
- fixed entity updates so subworld entities (like TNT) still update while they are out of the subworld bounds
- improved chunk sorting performance
- implemented player being put in the subworld location where she logged out even if the subworld moved since
- added supersizing block to miniature mod
- fixed "Illegal stance" kick if a player stood on a shrunk, supersized or pitched/rolled subworld

Update V0.97 : 11/27/2013 5:48:28 am11/27/13

- implemented more transformations: rotationPitch, rotationRoll, change rotation center
- fixes to worldBelowFeet tracking
- fix to entity dragging by subworlds on server side (this should also fix TNT again)
- player position locking works as intended now while the player is controlling a subworld

Update V0.961 : 11/26/2013 4:56:06 am11/26/13

- fixed client freeze bug
- small fix to subworld boundaries tracking
- added config files for block IDs

Update V0.96 : 11/25/2013 1:40:56 pm11/25/13

- updated to forge 953
- fixed crash when a block was removed from a subworld
- added transformation functions to the API for coordinate transformations between two subworlds
- improved transformations performance a lot
- implemented position tracking for subworld entities leaving their subworlds (not finished yet)
- more improvements to entity synchronization
- fixed some calculations which e.g. makes frames between ticks rendered smoother

Update V0.95 : 11/15/2013 5:54:22 pm11/15/13

-optimized server side so it only loads and sends chunks within and around the respective subworld's bounding box
-more small compatibility adjustments

Update V0.94 : 11/13/2013 8:53:41 am11/13/13

-rewrote subworld info saving structure
-made some changes which improve compatibility with other mods like Ars Magica and Thaumcraft
-rewrote the EntitySubWorldController
-started to make improvements to entity position synchronization
-empty new chunks from subworlds are not being saved anymore
-some cleanup

Update #1 : 11/06/2013 3:35:38 pm11/06/13

More instructions in the description

Comments : 280

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  • steve246
  • Level 1
  • New Miner
  • September 5, 2017, 9:15 pm
That guy was a jackass.
  • steve246
  • Level 1
  • New Miner
  • July 16, 2017, 3:43 pm
Do not try to install this mod.
  • steve246
  • Level 1
  • New Miner
  • July 16, 2017, 3:42 pm
Fuck this mod
  • steve246
  • Level 1
  • New Miner
  • June 16, 2017, 8:23 pm
no one can get this mod.
  • steve246
  • Level 1
  • New Miner
  • June 6, 2017, 3:18 pm
I had a question about this mod. I don't know if you can do this but can you look you the battle ship halberd on planet minecraft and on your point of view can you tell me if I can move a ship that size with your mod thank you MMMmasterM.
well i'm sure you know what i'm about to ask, but i want an upate! please. this mod is perfect for my modpack and i want to feature it
This is really cool!!! Will ther be a 1.7.10 Version soon?
  • tuff686
  • Level 5
  • Apprentice Crafter
  • June 12, 2015, 5:03 pm
doesnt show up. is this for forge?
need version 1.8
  • zipper9998
  • Level 1
  • New Miner
  • January 5, 2015, 6:10 am
if u sit in a minecart and then push ureself off the edge of subworld u glitch out and game crashes, it seems thatthere are many glitches when u spawn entertys n the subworld.
  • zipper9998
  • Level 1
  • New Miner
  • January 4, 2015, 8:01 am
when i drop tnt from my metaworld it just falls straight through the main worlds ground and doesnt destroy anything, i am running minecraft 1.7.2 with the latest version of the mod. I have also seen ure vid were u drop tnt and it works, so i dont know what im doing wrong?
  • IAmNotLiable
  • Level 9
  • Apprentice Miner
  • October 5, 2014, 8:57 pm
1.7.10 any time soon? :D
  • SpottedLeaf
  • Level 2
  • Apprentice Explorer
  • July 29, 2014, 12:27 pm
i keep getting this error:     (this is the whole log)    [22:25:55] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[22:25:55] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[22:25:55] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[22:25:56] [main/INFO] [FML]: Forge Mod Loader version for Minecraft 1.7.2 loading
[22:25:56] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.7.0_55, running on Windows 8.1:amd64:6.3, installed at C:\Program Files\Java\jre7
[22:25:56] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[22:25:56] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[22:25:56] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[22:25:56] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[22:25:56] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[22:26:01] [main/INFO] [FML]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557
[22:26:01] [main/INFO] [FML]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc
[22:26:01] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[22:26:01] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[22:26:01] [main/INFO] [Metaworlds]: Checking libraries...
[22:26:02] [main/INFO] [Metaworlds]: Setting up patches
[22:26:02] [main/INFO] [Metaworlds]: Metaworlds Patcher priority set
[22:26:02] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[22:26:02] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLDeobfTweaker
[22:26:05] [main/INFO] [LaunchWrapper]: Launching wrapped minecraft {net.minecraft.client.main.Main}
[TMI] Rewriting class bdd / net.minecraft.client.gui.inventory.GuiContainer
[22:26:10] [main/INFO]: Setting user: vanyugioh
[22:26:15] [Client thread/INFO]: LWJGL Version: 2.9.0
[22:26:18] [Client thread/INFO] [MinecraftForge]: Attempting early MinecraftForge initialization
[22:26:18] [Client thread/INFO] [FML]: MinecraftForge v10.12.0.1047 Initialized
[22:26:18] [Client thread/INFO] [FML]: Replaced 141 ore recipies
[22:26:18] [Client thread/INFO] [MinecraftForge]: Completed early MinecraftForge initialization
[22:26:19] [Client thread/ERROR] [FML]: Unable to determine registrant mod for TooManyItems. This is a critical error and should be impossible
at cpw.mods.fml.common.eventhandler.EventBus.register(EventBus.java:42) [EventBus.class:?]
at TMIForgeContainer.<init>(TMIForgeContainer.java:41) [TMIForgeContainer.class:?]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [?:1.7.0_55]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) [?:1.7.0_55]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) [?:1.7.0_55]
at java.lang.reflect.Constructor.newInstance(Unknown Source) [?:1.7.0_55]
at java.lang.Class.newInstance(Unknown Source) [?:1.7.0_55]
at cpw.mods.fml.common.Loader.identifyMods(Loader.java:315) [Loader.class:?]
at cpw.mods.fml.common.Loader.loadMods(Loader.java:460) [Loader.class:?]
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:201) [FMLClientHandler.class:?]
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:527) [azd.class:?]
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:882) [azd.class:?]
at net.minecraft.client.main.Main.main(SourceFile:103) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_55]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_55]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_55]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_55]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
[22:26:19] [Client thread/INFO] [FML]: Searching C:\Users\Colin\AppData\Roaming\.minecraft\mods for mods
[22:26:19] [Client thread/INFO] [FML]: Also searching C:\Users\Colin\AppData\Roaming\.minecraft\mods\1.7.2 for mods
[22:26:31] [Client thread/INFO] [FML]: Forge Mod Loader has identified 12 mods to load
[22:26:31] [Client thread/INFO]: Reloading ResourceManager: Default, FMLFileResourcePack:Forge Mod Loader, FMLFileResourcePack:Minecraft Forge, FMLFileResourcePack:MetaworldsControlsAlignMod, FMLFileResourcePack:MetaworldsControlsCaptainMod, FMLFileResourcePack:MetaworldsControlsFlipMod, FMLFileResourcePack:MetaworldsBlankCreatorMod, FMLFileResourcePack:MetaworldsContagiousCreatorMod, FMLFileResourcePack:MetaworldsReintegratorMod, FMLFileResourcePack:MetaworldsMiniatureMod, 1.7+HD Realistic by Lancer 64x64_2014 Survival Edition.zip
[22:26:31] [Client thread/INFO] [FML]: FML has found a non-mod file MetaWorldsInst.jar in your mods directory. It will now be injected into your classpath. This could severe stability issues, it should be removed if possible.
[22:26:34] [Client thread/INFO] [FML]: Configured a dormant chunk cache size of 0
[22:26:34] [Client thread/INFO] [Metaworlds_patcher]: Container PreInit

Starting up SoundSystem...
Initializing LWJGL OpenAL
(The LWJGL binding of OpenAL. For more information, see www.lwjgl.org)
# A fatal error has been detected by the Java Runtime Environment:
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000000000dce1066, pid=86936, tid=84944
# JRE version: Java(TM) SE Runtime Environment (7.0_55-b13) (build 1.7.0_55-b13)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (24.55-b03 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# C [OpenAL64.dll+0x11066]
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
# An error report file with more information is saved as:
# C:\Users\Colin\AppData\Roaming\.minecraft\hs_err_pid86936.log
# If you would like to submit a bug report, please visit:
# bugreport.sun.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
AL lib: (EE) alc_cleanup: 1 device not closed
  • tuff686
  • Level 5
  • Apprentice Crafter
  • June 12, 2015, 5:04 pm
  • guestds
  • Level 15
  • Journeyman Modder
  • November 29, 2014, 3:54 pm
try it with no mods and if you did 1st go to skydaz(dot)com and get nei and install this after manually and if it doesnt work still then its something about ur mc with no mods or ur cpu
  • retfarcimak
  • Level 4
  • Apprentice Explorer
  • July 9, 2014, 4:25 pm
How do I enable the mod? It isn't working, and when I veiw the "mods" option in the escape menu, it says that metaworlds is disabled.
will there be an update that prevents subworlds passing through real world blocks? It is a little frustrating. Also, I've said this before, but a speed algorithm, or at least some variation that allows it, would be useful for server battles or something like that. different sizes, different engines, etc.
My game opens, then quickly closes with this mod on!
  • TheAerofans
  • Level 40
  • Master Engineer
  • May 18, 2014, 9:19 am
This mod is wicked! But how do you make a sub world ascend?
I don't suppose back versions are available? I wanna download for 1.6.4 :)
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • May 15, 2014, 7:27 am
The last 1.6.4 version is still up on www.metaworlds.info - the 1.6.4 version is not updated anymore though. ;)
  • rulo5000
  • Level 22
  • Expert Engineer
  • May 1, 2014, 10:37 am
how do you make creations go down?
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • May 1, 2014, 12:30 pm
left ctrl (or whatever your sprint button is)
  • rulo5000
  • Level 22
  • Expert Engineer
  • May 3, 2014, 1:02 pm
thanks!!!, i also want to know if you can transform an creation into a metaworld (example, an airplane in the air, a house, etc.)
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • May 4, 2014, 2:06 am
sure, just place a Contagious SubWorld Creator block on it while it is not connected to the ground anymore.
  • SpaceWhale
  • Level 3
  • Apprentice Network
  • June 5, 2014, 7:38 am
What are the blank subworld creators used for?
  • rulo5000
  • Level 22
  • Expert Engineer
  • May 5, 2014, 8:57 am
you made my dream come true!!!!!! thanks!!
  • Giant Zombie
  • Level 9
  • Apprentice Engineer
  • April 25, 2014, 5:15 am
Only ever crashed once suppose thats because my computer is realy fast and i worked how to up the piority levels with the task manerger
  • 10money19324
  • Level 8
  • Apprentice Dragon
  • April 20, 2014, 12:17 pm
Hey alot of your mods are EPIC
With the new update, it no longer crashes when creating a subworld. it is possible for me to fly a small aircraft, although extremely laggy. (1-2 fps)
after a while it crashed. the crash log can be found here.
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • April 18, 2014, 9:20 am
That crash looks like minecraft ran out of memory. 
You can increase the amount of RAM minecraft uses if you click Edit Profile, check the JVM Arguments setting and add for example these arguments in the textfield: "-Xmx2048M -Xms2048M" (e.g. for 2gb, if you have more than 2gb of memory).

I'm working on a mod release for dedicated servers at the moment but once that's done I'll try to improve the performance (there should be more space for code optimizations).
I increased the memory to 4GB (of 6GB total) and it's still extremely laggy to the point where you can't use it properly because the chunks don't update
Once again, a brilliant job with each update. I had always wondered what would happen if I logged out with a moving subworld, and the new saving of subworld velocities answers that. It's also excellent to see that I won't get blown out the back of my airships anymore. Keep up the great work!
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • April 16, 2014, 1:47 am
Thanks, next up is dedicated servers support.
  • Paradox78
  • Level 17
  • Journeyman Button Pusher
  • April 15, 2014, 2:57 pm
In regards to updating, two things:
A. Will updating delete my metaworlds that I had before the update and
B. I did it, but minecraft won't launch at all now and I'm not sure why. No crash report, just open-close.
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • April 16, 2014, 1:44 am
There shouldn't be anything in the code that could possibly delete existing subworlds. If the save format changes it might not be able to load old subworlds automatically, but it should always be possible to import them into a new save with the new admin gui ("/mwc" command - first import it, then reopen the current subworld list a few times until the new imported one appears, then spawn it + teleport it/yourself).

About the silent closing - check what the Developer Console Tab of the launcher says. If the launcher doesn't automatically reopen after minecraft closes, change the minecraft profile settings to keep the launcher open.
  • Paradox78
  • Level 17
  • Journeyman Button Pusher
  • April 16, 2014, 12:49 pm
Thanks, excellent update by the way, every qualm i had about being blown out the back wall or not being able to climb ladders and the chests not renedering, all answered in one update! Fantastic.
  • Caporal Dxl
  • Level 29
  • Expert Ranger
  • April 15, 2014, 4:30 am
Just for the sake of being ridiculous!
  • Legalninja
  • Level 1
  • New Miner
  • April 14, 2014, 1:47 pm
May I ask, how do I uninstall after using the installer? It is giving me an issue to where now I cant even launch Minecraft. Thanks
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • April 14, 2014, 11:43 pm
you can simply delete the mod's files from your .minecraft/mods/1.7.2 folder
  • Paradox78
  • Level 17
  • Journeyman Button Pusher
  • April 12, 2014, 8:31 pm
How do you use the contagious subworld creator? When I place it it crashes the game, so what is it's purpose?
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • April 12, 2014, 11:56 pm
If it crashes the game, there's probably another incompatible mod. If you send the crash report I can try to fix it. 
The contagious subworld creator is supposed to take all blocks it is connected to (directly or indirectly) and turn them into a subworld (unless it is connected to/contains bedrock).
  • Paradox78
  • Level 17
  • Journeyman Button Pusher
  • April 13, 2014, 1:59 pm
Thank you, it works now that I got rid of optifine.
  • Paradox78
  • Level 17
  • Journeyman Button Pusher
  • April 12, 2014, 7:35 pm
First off, great mod, really looking forward to playing with this but it won't work. Do you want the crash report because I have absolutely no idea what's wrong.
  • Paradox78
  • Level 17
  • Journeyman Button Pusher
  • April 12, 2014, 7:36 pm
Oh, it isn't compatible with optifine? That's what it is then.
  • romy2549
  • Level 6
  • Apprentice Hunter
  • April 5, 2014, 9:15 am
slowww-mo sesame street song sung by a singer lol
Is the site down? Because i can't download it. Can you give me a link for the file by message?
Anyways, diamonded the mod because it is just AWESOME! I've been looking for a mod like that for months!
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • April 1, 2014, 3:23 pm
All the direct links are listed on www.metaworlds.info ;)
I still can't access the site :/
Can you put the file on mediafire.com and give me the link? I REALLY wanted to play minecraft with ships!
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • April 4, 2014, 8:16 am
Thank you! You're the greatest modder EVER
I placed a contagious subworld creator, and my game crashed. it's not because of any other mods, because I literally resetted minecraft (delete and launch) before installing the mod.

the crashlog is at


By the way, awesome job
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • March 31, 2014, 2:10 pm
Thanks, that is a known bug and it will probably work if you just try it again. 
I'm trying to fix it but it's hard to find the cause because the crash is not very reproducable.
well, I tried it four times now, and it seems that it happens everytime. here's another crash log

also set java highlighting here, might make it a little easier.

PS: when thinking about what I would do with this mod, I thought you might want to have a contagious subworld creator work not just on placement, but also with right click. that makes it a lot easier when having a zeppelin park, to prevent having too many subworlds crashing overloading your computer. makes aligners a lot more usefull (if they add the subworld to the main world, that it)
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • April 1, 2014, 3:22 pm
Hmm, strange, will have to investigate the code again more closely.

There is a new block called SubWorld Reintegrator which puts it back into the normal world. Transfering big structures from world to subworld or vice versa takes quite some work for the server which is why I'd want to keep it to a minimum and not have it activate on right-click (which could also happen by accident more easily then). The last time I've tested the performance I was able to have more than 200 subworlds simultaneously in sight which is why I thought its demands are reasonable but there sure is more room for performance improvements.
thanks. if you need more crash logs, just send a message.

I see your point. my computer should be able to handle my 30 zeppelins, but I am now building one that is considirably larger. however, but as I my mod won't work right now anyway, I just have to wait with my experiment. (not that I blame you for anything, my computer is using it's graphical drivers quite strangely anyway. can't use Linux for example, because of hardware-software intergration).
  • firedeath57
  • Level 10
  • Journeyman Architect
  • March 30, 2014, 10:07 am
@closer I used shadders with this mod today and it worked....... just cant use optifine.....
There is a bug in the latest version where placing a subworld creator crashes the game
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • March 28, 2014, 1:10 pm
Contagious SubWorld Creator or Blank SubWorld Creator?
Are you using other mods?
And could you post the Crash Log (e.g. using pastebin.com), please? ^^
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • March 28, 2014, 1:21 pm
That optiFine. 
OptiFine and MetaWorlds are not compatible with each other because both have to change some fundamentals in vanilla core code and their changes overwrite each other's respective changes. 

So sadly the only way OptiFine and MetaWorlds could ever work together was if I worked with the coder from OptiFine.
I removed optifine, and now Metaworlds won't even load. The game just crashes on startup..


Deleting the mod's code and reloading it after Optifine taints it fixes that issue
sure thing. The other mods were Optifine and GLSL Shaders and blank subworld creator
It's aliiive!
Good to see that you're still at work here MMM_MasterM. I was actually thinking about sending you a PM yesterday about how things were going with Metaworlds. A port to 1.7 would explain the long absence of posts. It's just too bad that the 1.6 version will never see metaworld-world collision mechanics. :P
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • March 28, 2014, 1:12 pm
Well, turned out the jump to ForgeGradle that came with the 1.7 update makes quite some things easier for me in the long run so hopefully I can concentrate on collisions soon. :)
It's good to know that the collision problem may eventually be solved. A bit disappointing to know that it won't be in the 1.6 version, but more and more mods are making the trip to 1.7 every day, so modpacking may not be out of the question.
  • steambot80
  • Level 35
  • Artisan Robot
  • March 28, 2014, 10:06 am
How big can i make the ship?
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • March 28, 2014, 10:18 am
as big as a world can be... to be more precise that's about 60000000 by 60000000 by 256 blocks :P
  • Apimil
  • Level 55
  • Grandmaster Demolitionist
  • March 25, 2014, 5:11 am
I made and airfleet and you made my day.
Hi, sorry to bother you,  but I have a question for you. I tried running this mod on server, me and some friends were working on a big project and we thought that this mod was essential. Anyway, I tried booting the server, but after the window being open for about 5 seconds, the console window shut. The problem was, there was no crash report... So I took out all the other mods on the server and  tried again, but I was having the same problem.  Is this mod even server compatible? If it's not, can you make a server version please? Sorry to bother you, I'm sure I'm just missing out the obvious. Great mod by the way, probably my favourite mod of all time! If you could get back to me on this, it would be great! Again, thanks.
  • MMM_MasterM
  • Level 66
  • High Grandmaster Engineer
  • March 23, 2014, 7:27 am
The current version is not compatible with dedicated servers but the next release (which will be for Minecraft 1.7) will get a release for dedicated servers - it will be a separate download though, not the one used on the client.

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