JumpCircle

JumpCircle is a lightweight client-only Fabric mod that adds polished animated jump circles under your player.

When you jump, the mod renders a custom world-space circle at the ground position where the jump started. The effect expands, fades, and stays fixed in the world. It uses custom geometry instead of vanilla particles.

Features

Client-side only
Custom rendered jump circles
No vanilla particles
Fixed world-space spawn position
Smooth partial-tick animation
In-game settings menu
Multi-language UI
Multiple circle modes
Optimized for high-FPS gameplay
Object pooling and distance culling
Safe config recovery
Fail-soft compatibility behavior

Circle Modes

Classic – one clean expanding ring
Double – inner and outer ring
Shockwave – filled center that opens into a ring
Gradient – blends between two configurable colors
RGB – animated rainbow ring
Glow – glow-style ring without shader dependencies
Hexagon – animated hexagonal ring

Settings

JumpCircle includes a built-in settings screen.

General

Enabled
Circle Mode
Animation Easing
Lifetime

Shape

Radius
Thickness
Opacity
Segment Count

Colors

Primary Color
Secondary Color
Gradient Color
RGB Settings

Performance

Render Distance
Ground Offset
Maximum Active Effects
RGB Animation Speed

Settings are saved to:

config/jumpcircle.json

Supported Versions

Built jars are available for:

Minecraft
1.21.11

Some versions may require different Java versions depending on Minecraft requirements.

Compatibility

JumpCircle is built for Fabric and designed to work alongside common client-side mods.

Compatibility test targets:

Sodium
Iris
Mod Menu
Inventory Profiles Next
Mouse Tweaks
Shulker Box Tooltip
ReplayMod

Mods that heavily modify world rendering may require additional testing.

Installation

Install Fabric Loader for your Minecraft version.
Install Fabric API for your Minecraft version.
Download the matching JumpCircle version.
Place the jar into your mods folder.
Launch Minecraft.

This is a client-only mod and is not required on servers.

Performance

JumpCircle is designed for competitive gameplay.

Performance goals:

High FPS
Minimal render allocations
Object pooling
Distance culling
Efficient custom geometry rendering
No vanilla particles
No unnecessary world scanning

Localization

Included languages:

English (en_us)
German (de_de)
Russian (ru_ru)
Ukrainian (uk_ua)
French (fr_fr)
Spanish (es_es)
Italian (it_it)
Portuguese (pt_br)
Polish (pl_pl)
Turkish (tr_tr)
Dutch (nl_nl)
Czech (cs_cz)
Hungarian (hu_hu)
Chinese Simplified (zh_cn)
Chinese Traditional (zh_tw)
Japanese (ja_jp)
Korean (ko_kr)

Manual Test Plan

Join a world.
Jump normally.
Sprint jump.
Spam jump repeatedly.
Switch circle modes.
Change colors.
Change GUI scale.
Switch dimensions.
Disconnect and reconnect.
Test with Sodium.
Test with Iris.
Verify FPS stability with many active effects.

Roadmap

Planned features:

Astolfo Colors
Advanced RGB Modes
Trail Circles
Rune Circles
Water Ripple Effects
Shader-Based Glow
Texture Atlas Support
Effect Presets
Custom Circle Editor

License

MIT

Jump Circle