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Type: Bug
Resolution: Fixed
Fix Version/s: 1.16 Pre-release 1
Affects Version/s: 20w06a, 20w07a, 20w08a, 20w09a, 20w10a, 20w11a, 20w12a, 20w13a, 20w15a, 20w18a, 20w19a, 20w20a, 20w21a, 20w22a
Labels:
- incorrect-particle-generation
- precision-loss

Confirmation Status:
Confirmed
Category:

Particles
Mojang Priority:
Low

The particles found in nether exclusive biomes are coming from points that lose floating point precision at high coordinates. This is rather tricky to spot in vanilla, but is definitely present (the Basalt Deltas biome in particular tends to show lines over distances).

This is best tested when greater than 16,777,216 blocks out on both axes, so being 20 million blocks out should suffice. This issue is without a doubt due to incorrectly casting to a 32-bit float from an integer or double, resulting in numerical precision being lost. This can be fixed by simply not casting to a float, which eliminates any chance of losing any precision.

Related tickets: ~~MC-182789~~

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2020-02-05_18.39.21.png
637 kB
05/Feb/20 7:44 PM

relates to

MC-164352 Casting issue: Snow animation becomes stretched when being very high above the ground

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MC-186362 Casting issue: Translucent block rendering breaks down at high distances

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MC-177723 Casting Issue: Mobs occasionally just spin around when coordinate numbers are very high

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MC-182748 Casting issue: Redstone dust particles are generated at the wrong positions at high coordinates

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MC-183174 Casting Issue: Certain detector rails unable to be powered when coordinate numbers are very high

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MC-76810 Casting issue: Bone meal particles break at high coordinates (floating point precision)

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MC-161969 Casting issue: Adding ender eyes to end portal frames at high distances causes particles to lose precision

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MC-167046 Casting issue: Lava ember particles and lava popping sounds lose precision on creation at high coordinates

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MC-167047 Casting issue: TNT blocks ignited by other explosions lose precision at high coordinates

Resolved

MC-167091 Casting issue: Water particles dripping from leaves lose precision at high coordinates

Resolved

MC-171037 Casting issue: Smoke produced by lava during rain loses precision at high coordinates

Resolved

(10 relates to)

Assignee:: [Mojang] Grum (Erik Broes)

Reporter:: Connor Steppie

Votes:: 3 Vote for this issue

Watchers:: 2 Start watching this issue

Created:: 05/Feb/20 7:44 PM

Updated:: 17/Oct/21 1:29 AM

Resolved:: 02/Jun/20 4:00 PM

CHK:: 06/Feb/20 12:35 AM

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