Put the summary of the bug you're having here i was just trying the new mobs out and when i lokked the other direction there was a giant black screen part.

What actually happened was...:
Describe what happened here

Steps to Reproduce:
1. spawn a new mob / ride a horse
2. ... look towards east

here is my whole output:
[07:42:35] [Client thread/INFO]: Setting user: ThugSheep360MLG
[07:42:36] [Client thread/INFO]: LWJGL Version: 2.9.4
[07:42:37] [Client thread/INFO]: Reloading ResourceManager: Default
[07:42:51] [Client thread/WARN]: Missing sound for event: minecraft:block.enchantment_table.use
[07:42:51] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.ambient
[07:42:51] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.baby_ambient
[07:42:51] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.death
[07:42:51] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.hurt
[07:42:51] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.step
[07:42:51] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.warning
[07:42:51] [Sound Library Loader/INFO]: Starting up SoundSystem...
[07:42:51] [Thread-5/INFO]: Initializing LWJGL OpenAL
[07:42:51] [Thread-5/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[07:42:52] [Client thread/INFO]: Created: 1024x512 textures-atlas
[07:42:53] [Thread-5/INFO]: OpenAL initialized.
[07:42:53] [Sound Library Loader/INFO]: Sound engine started
[07:45:05] [Server thread/INFO]: Starting integrated minecraft server version 16w21b
[07:45:05] [Server thread/INFO]: Generating keypair
[07:45:06] [Server thread/INFO]: Preparing start region for level 0
[07:45:07] [Server thread/INFO]: Preparing spawn area: 10%
[07:45:08] [Server thread/INFO]: Preparing spawn area: 23%
[07:45:09] [Server thread/INFO]: Preparing spawn area: 40%
[07:45:10] [Server thread/INFO]: Preparing spawn area: 56%
[07:45:11] [Server thread/INFO]: Preparing spawn area: 71%
[07:45:12] [Server thread/INFO]: Preparing spawn area: 88%
[07:45:12] [Server thread/INFO]: Changing view distance to 32, from 10
[07:45:14] [Server thread/INFO]: ThugSheep360MLG[local:E:bcbd9056] logged in with entity id 1427 at (-90.5, 76.0, -124.5)
[07:45:14] [Server thread/INFO]: ThugSheep360MLG joined the game
[07:45:15] [Server thread/INFO]: Saving and pausing game...
[07:45:15] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Overworld
[07:45:16] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Nether
[07:45:16] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/The End
[07:45:16] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2729ms behind, skipping 54 tick(s)
[07:45:47] [Server thread/INFO]: ThugSheep360MLG has just earned the achievement [Taking Inventory]
[07:45:47] [Client thread/INFO]: [CHAT] ThugSheep360MLG has just earned the achievement [Taking Inventory]
[07:45:56] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 18756ms behind, skipping 375 tick(s)
[07:46:00] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 4106ms behind, skipping 82 tick(s)
[07:46:20] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 8817ms behind, skipping 176 tick(s)
[07:46:34] [Server thread/INFO]: Saving and pausing game...
[07:46:34] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Overworld
[07:46:34] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Nether
[07:46:34] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/The End
[07:48:25] [Client thread/INFO]: [CHAT] /gamemode, /gamerule
[07:48:25] [Client thread/INFO]: [CHAT] /gamemode, /gamerule
[07:48:27] [Client thread/INFO]: [CHAT] /gamemode, /gamerule
[07:48:29] [Server thread/INFO]: [ThugSheep360MLG: Set own game mode to Survival Mode]
[07:48:29] [Client thread/INFO]: [CHAT] Your game mode has been updated to Survival Mode
[07:48:32] [Server thread/INFO]: Saving and pausing game...
[07:48:32] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Overworld
[07:48:32] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Nether
[07:48:32] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/The End
[07:48:58] [Client thread/INFO]: [CHAT] /gamemode, /gamerule
[07:48:59] [Server thread/INFO]: [ThugSheep360MLG: Set own game mode to Creative Mode]
[07:48:59] [Client thread/INFO]: [CHAT] Your game mode has been updated to Creative Mode
[07:50:41] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2247ms behind, skipping 44 tick(s)
[07:51:05] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 4787ms behind, skipping 95 tick(s)
[07:52:03] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 35129ms behind, skipping 702 tick(s)
[07:52:07] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3592ms behind, skipping 71 tick(s)
[07:52:31] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 11178ms behind, skipping 223 tick(s)
[07:53:04] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3232ms behind, skipping 64 tick(s)
[07:54:28] [Client thread/INFO]: [CHAT] /gamemode, /gamerule
[07:54:29] [Server thread/INFO]: [ThugSheep360MLG: Set own game mode to Survival Mode]
[07:54:29] [Client thread/INFO]: [CHAT] Your game mode has been updated to Survival Mode
[07:54:51] [Client thread/INFO]: [CHAT] /gamemode, /give, /gamerule
[07:54:52] [Client thread/INFO]: [CHAT] /gamemode, /give, /gamerule
[07:54:56] [Client thread/INFO]: [CHAT] minecraft:cobblestone, minecraft:chainmail_chestplate, minecraft:cooked_chicken, minecraft:cobblestone_wall, minecraft:clay, minecraft:clay_ball, minecraft:chicken, minecraft:cooked_fish, minecraft:comparator, minecraft:command_block_minecart, minecraft:carrot, minecraft:coal, minecraft:chest_minecart, minecraft:chainmail_boots, minecraft:cake, minecraft:cookie, minecraft:cooked_mutton, minecraft:cactus, minecraft:command_block, minecraft:compass, minecraft:cooked_rabbit, minecraft:coal_ore, minecraft:chorus_flower, minecraft:chorus_fruit_popped, minecraft:cooked_porkchop, minecraft:coal_block, minecraft:chainmail_helmet, minecraft:carrot_on_a_stick, minecraft:carpet, minecraft:chorus_fruit, minecraft:cooked_beef, minecraft:chain_command_block, minecraft:crafting_table, minecraft:clock, minecraft:cauldron, minecraft:chest, minecraft:chainmail_leggings, minecraft:chorus_plant
[07:54:56] [Client thread/INFO]: [CHAT] minecraft:cobblestone, minecraft:chainmail_chestplate, minecraft:cooked_chicken, minecraft:cobblestone_wall, minecraft:clay, minecraft:clay_ball, minecraft:chicken, minecraft:cooked_fish, minecraft:comparator, minecraft:command_block_minecart, minecraft:carrot, minecraft:coal, minecraft:chest_minecart, minecraft:chainmail_boots, minecraft:cake, minecraft:cookie, minecraft:cooked_mutton, minecraft:cactus, minecraft:command_block, minecraft:compass, minecraft:cooked_rabbit, minecraft:coal_ore, minecraft:chorus_flower, minecraft:chorus_fruit_popped, minecraft:cooked_porkchop, minecraft:coal_block, minecraft:chainmail_helmet, minecraft:carrot_on_a_stick, minecraft:carpet, minecraft:chorus_fruit, minecraft:cooked_beef, minecraft:chain_command_block, minecraft:crafting_table, minecraft:clock, minecraft:cauldron, minecraft:chest, minecraft:chainmail_leggings, minecraft:chorus_plant
[07:55:02] [Client thread/INFO]: [CHAT] minecraft:cobblestone, minecraft:cooked_chicken, minecraft:cobblestone_wall, minecraft:cooked_fish, minecraft:comparator, minecraft:command_block_minecart, minecraft:coal, minecraft:cookie, minecraft:cooked_mutton, minecraft:command_block, minecraft:compass, minecraft:cooked_rabbit, minecraft:coal_ore, minecraft:cooked_porkchop, minecraft:coal_block, minecraft:cooked_beef
[07:55:03] [Client thread/INFO]: [CHAT] minecraft:cobblestone, minecraft:cooked_chicken, minecraft:cobblestone_wall, minecraft:cooked_fish, minecraft:comparator, minecraft:command_block_minecart, minecraft:coal, minecraft:cookie, minecraft:cooked_mutton, minecraft:command_block, minecraft:compass, minecraft:cooked_rabbit, minecraft:coal_ore, minecraft:cooked_porkchop, minecraft:coal_block, minecraft:cooked_beef
[07:55:06] [Server thread/INFO]: [ThugSheep360MLG: Given [Roast Chicken] * 64 to ThugSheep360MLG]
[07:55:06] [Client thread/INFO]: [CHAT] Given [Roast Chicken] * 64 to ThugSheep360MLG
[07:56:14] [Client thread/INFO]: [CHAT] /gamemode, /gamerule
[07:56:15] [Server thread/INFO]: [ThugSheep360MLG: Set own game mode to Creative Mode]
[07:56:15] [Client thread/INFO]: [CHAT] Your game mode has been updated to Creative Mode
[07:56:21] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2216ms behind, skipping 44 tick(s)
[07:56:38] [Client thread/INFO]: [CHAT] Saved screenshot as 2016-05-30_07.56.38.png
[07:56:40] [Server thread/INFO]: Saving and pausing game...
[07:56:40] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Overworld
[07:56:40] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Nether
[07:56:40] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/The End
[08:01:43] [Server thread/INFO]: Saving and pausing game...
[08:01:43] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Overworld
[08:01:44] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Nether
[08:01:44] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/The End
[08:06:10] [Server thread/INFO]: Saving and pausing game...
[08:06:10] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Overworld
[08:06:10] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Nether
[08:06:10] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/The End
[08:06:10] [Server thread/INFO]: Stopping server
[08:06:10] [Server thread/INFO]: Saving players
[08:06:10] [Server thread/INFO]: Saving worlds
[08:06:10] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Overworld
[08:06:11] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Nether
[08:06:11] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/The End
[08:06:16] [Server thread/INFO]: Starting integrated minecraft server version 16w21b
[08:06:16] [Server thread/INFO]: Generating keypair
[08:06:16] [Server thread/INFO]: Preparing start region for level 0
[08:06:17] [Server thread/INFO]: Preparing spawn area: 92%
[08:06:17] [Server thread/INFO]: Changing view distance to 32, from 10
[08:06:17] [Server thread/INFO]: ThugSheep360MLG[local:E:56cb8e6f] logged in with entity id 16616 at (300.29654625597266, 71.60574479914709, -136.34217661978613)
[08:06:17] [Server thread/INFO]: ThugSheep360MLG joined the game
[08:06:28] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 10500ms behind, skipping 210 tick(s)
[08:06:35] [Server thread/INFO]: Saving and pausing game...
[08:06:35] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Overworld
[08:06:35] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Nether
[08:06:35] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/The End
[08:09:47] [Client thread/INFO]: [CHAT] /summon, /spreadplayers, /seed, /stopsound, /stats, /scoreboard, /say, /spawnpoint, /setblock, /setworldspawn
[08:09:49] [Server thread/INFO]: [ThugSheep360MLG: Object successfully summoned]
[08:09:49] [Client thread/INFO]: [CHAT] Object successfully summoned
[08:10:03] [Server thread/INFO]: Saving and pausing game...
[08:10:03] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Overworld
[08:10:03] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Nether
[08:10:03] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/The End
[08:10:58] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 5092ms behind, skipping 101 tick(s)
[08:11:13] [Client thread/INFO]: [CHAT] Saved screenshot as 2016-05-30_08.11.12.png
[08:11:14] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3255ms behind, skipping 65 tick(s)
[08:11:15] [Client thread/INFO]: [CHAT] Saved screenshot as 2016-05-30_08.11.14.png
[08:11:16] [Server thread/INFO]: Saving and pausing game...
[08:11:16] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Overworld
[08:11:17] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/Nether
[08:11:17] [Server thread/INFO]: Saving chunks for level '16w21b (snaps)'/The End
[08:11:20] [Client thread/ERROR]: Couldn't toggle fullscreen
org.lwjgl.opengl.OpenGLException: Invalid framebuffer operation (1286)
at org.lwjgl.opengl.Util.checkGLError(Util.java:59) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
at org.lwjgl.opengl.WindowsContextImplementation.setSwapInterval(WindowsContextImplementation.java:113) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
at org.lwjgl.opengl.ContextGL.setSwapInterval(ContextGL.java:232) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
at org.lwjgl.opengl.DrawableGL.setSwapInterval(DrawableGL.java:86) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
at org.lwjgl.opengl.Display.setSwapInterval(Display.java:1129) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
at org.lwjgl.opengl.Display.setVSyncEnabled(Display.java:1142) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
at bcw.r(SourceFile:1515) [16w21b.jar:?]
at bcw.W(SourceFile:2854) [16w21b.jar:?]
at bfs.l(SourceFile:428) [16w21b.jar:?]
at bfs.p(SourceFile:392) [16w21b.jar:?]
at bcw.t(SourceFile:1582) [16w21b.jar:?]
at bcw.av(SourceFile:964) [16w21b.jar:?]
at bcw.a(SourceFile:392) [16w21b.jar:?]
at net.minecraft.client.main.Main.main(SourceFile:124) [16w21b.jar:?]
#

1. A fatal error has been detected by the Java Runtime Environment:
   #
2. EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffb54a2fe14, pid=4580, tid=4508
   #
3. JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
4. Java VM: Java HotSpot(TM) 64-Bit Server VM (25.25-b02 mixed mode windows-amd64 compressed oops)
5. Problematic frame:
6. C [ig75icd64.dll+0x1bfe14]
   #
7. Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
   #
8. An error report file with more information is saved as:
9. C:\Users\rayen_000\AppData\Roaming\.minecraft\hs_err_pid4580.log
   #
10. If you would like to submit a bug report, please visit:
11. http://bugreport.sun.com/bugreport/crash.jsp
12. The crash happened outside the Java Virtual Machine in native code.
13. See problematic frame for where to report the bug.
    #
    AL lib: (EE) alc_cleanup: 1 device not closed
    Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release