The bug
The potion particles are not spawning in the middle of the block. They're spawning on the edge of the block. Does not happen when you use the following command with a command block:
/particle <particle> ~0 ~1 ~0 0 0 0 1 1Code analysis
Code analysis by @unknown can be found in this comment.
Linked issues
is duplicated by 29
MC-60528
When throwing potions, particles display elsewhere than where the entity hits the ground
Resolved
MC-68044
Splash potion particles are always at X: -.0 Z: -.0
Resolved
MC-68785
Potion particles spawn wrong position when hit on the ground
Resolved
MC-69534
Splash potion particles on wrong location
Resolved
MC-76768
Thrown Enchanted bottle is displayed in the wrong place
Resolved
MC-84157
Splash Water Bottle particles are off-setted
Resolved
MC-84388
Bottles O' Enchanting incorrect particle placement
Resolved
MC-85419
Splash Potion particles up to ~1.4 block away from splash point
Resolved
MC-85742
Splash potion particles only spawn from the lower northwest corner of the block
Resolved
MC-87738
Splash Potion/Lingering Potion Radius and particles are off-center
Resolved
MC-91456
Potion Particles.
Resolved
MC-92779
Splash Potion
Resolved
MC-92961
Splash and lingering potions splash it's corresponding effects adjacent to the block of where it lands.
Resolved
MC-94228
Splash Potion Particles are Offset
Resolved
MC-102115
Splash potion particles are off center
Resolved
MC-102307
Splash potion particles appear in the wrong place
Resolved
MC-107158
Splash potions produce particles from north-west corner of a block it landed on
Resolved
MC-108643
When a thrown potion breaks, the particles show in the negative most corner of the block
Resolved
MC-112367
Splash Potion particles appear offset from landing point
Resolved
MC-113417
If you throw a bottle of enchanting the particles will land next to it instead of on it
Resolved
MC-121883
Thrown potions always land on lowest x+z coordinate of a block
Resolved
MC-129067
Splash potion hit effect displays always at north-west corner of block.
Resolved
MC-132047
Splash potion particles offset
Resolved
MC-140773
Experience Bottles Particles are offset
Resolved
MC-141856
Incorrect splash potion particle
Resolved
MC-142426
Miss aligned potion splash
Resolved
MC-146029
Splash potion particles always displayed on block edge
Resolved
MC-180328
Splash Potion Particles don't show up at the right location
Resolved
MC-188039
splash potion particle don't appear where you throw the potion
Resolved
relates to 4
MC-161888
Enchantment tables do not track the player correctly at high distances from the world origin
Resolved
MC-146740
Magma bubble column particles are misaligned
Open
MC-196142
Basalt delta particles move in random directions in Bedrock, but northwest on Java
Open
MC-163027
Mob and player particles are offset
Resolved
Attachments
Comments 37
Fixed in 14w05b.
Tested with
/particle mobSpell ~0 ~1 ~0 0 0 0 1 5Please re-open this issue. The bug is still prevalent in 14w27b. No matter where you throw a splash potion, the particles only appear on the North-West corner of the block they landed on.
Reopened and confirmed.
Confirmed 1.8-pre1
Confirmed 1.8-pre2
Affects 1.8.
Confirmed for
1.8.2-pre1
Still affects 1.8.3.
Affects 1.8.4
Still affecting 1.8.5 : http://prntscr.com/78hpcl
Affects 15w31a!
Confirmed for 15w32b.
Still confirmed for 15w33a. I hope this gets fixed now there are new Lingering potions
Affects 15w33b.
Affects 15w34a.
Affects 15w34d.
Mathias K.: Since the original reporter seems inactive I've given you the ticket. Take good care of it 🙂
Bug confirmed for 15w47a.
Bug is still existent in 15w47b.
This bug affects 15w47c.
Confirmed for
15w50a
The reason for that is that the method playAuxSFX(int p_175718_1_, BlockPos p_175718_2_, int p_175718_3_) in the /Client/src/net/minecraft/world/World.java class takes a BlockPos as argument (MCP 1.8 names). However BlockPos can only store three integers. This is also the reason why for example doors being broken display their particles in the center of the block (very likely). This method is not only used for rendering but also for the sound, which is the reason why the method used by the /particle command cannot be used for potions (as well as the fact that that method ignores the particle settings).
Edit: There are actually two methods of the net.minecraft.world.World class that could be used instead (together):
playSoundEffect(double x, double y, double z, String soundName, float volume, float pitch)spawnParticle(EnumParticleTypes p_175688_1_, double p_175688_2_, double p_175688_4_, double p_175688_6_, double p_175688_8_, double p_175688_10_, double p_175688_12_, int ... p_175688_14_)
still in 1.9.4
Can confirm for 17w50a. Please update the affected versions for said version.
Still affects 18w05a, please update!
Affects 18w09a.
Yet confirmed in latest -release and -snapshot versions. Seems to be a simple bug with unnecessary float -> integer conversions of x/y/z coordinates.
Affects 1.13-pre6. Please keep the issue updated accordingly.
Affects 1.13-pre7
It also seems like the spread not only offsets to negative X and Z coordinates, but also to a negative Y coordinate. You could make splash potions sink into the ground by throwing them on end portal frames at a certain angle. The same applies to slabs and most slab-like blocks.
Present in 1.14.4 and all prior versions...
The packet for splash potions takes integers for the location, instead of floats or doubles.
Issue should probably be updated to include a feature request to change location parameters of (World) Effect packet ID 0x22 (34) to some floating point types.
Unfortunately, almost all of the effects that can be sent from this packet, make sense to only use block location, so this is probably not a big concern for the developers.
Relates closely to MC-76810
Affects 1.15 and 1.15.1 pre-release 1.
Also Eye of Ender broken particles are offset.
[media]
@@unknown, that is a separate issue and I created MC-172739 for it and attached your video there.
Please comment on it if you want to become the reporter.
Affects 1.16 pre5
Resolved? in 1.16 Pre-release 6.
Splash potion particles now always spread from the center of the block, regardless of impact
Panda4994
Use absolute coordinates and add .5 to the end of the x and z coordinates. It's the only advice I can offer.