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ChaosAPI project artwork

CurseForge · Minecraft mod

ChaosAPI

GPU-accelerated animation and rendering library

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which ChaosAPI release should I use?

Updated last month
Latest stable file [Universal] chaoslib-1.21.1-1.2.0
Game version 1.21.1
Loader Fabric, NeoForge

ChaosAPI [Universal] chaoslib-1.21.1-1.2.0 targets 1.21.1 with Fabric, NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.

Where it goes

Is ChaosAPI required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Fabric, NeoForge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does ChaosAPI [Universal] chaoslib-1.21.1-1.2.0 need?

[Universal] chaoslib-1.21.1-1.2.0. Change the file and its required mods may change too.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add ChaosAPI without breaking your instance.

Built for ChaosAPI [Universal] chaoslib-1.21.1-1.2.0. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use [Universal] chaoslib-1.21.1-1.2.0. It targets 1.21.1 with Fabric, NeoForge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside [Universal] chaoslib-1.21.1-1.2.0. It opens that exact file at the source.

About this project

What does ChaosAPI add?

ChaosLib is a high-performance animation and rendering library for Minecraft mods. It provides a familiar API for developers migrating from GeckoLib while offering advanced rendering optimizations and additional runtime features.

Features

  • GPU-accelerated geo model animation
  • Entity and block entity renderers
  • Animation controllers and procedural animations
  • Server-triggered animations synced to every client tracking the entity
  • Static model baking for improved performance
  • Multipart entities with bone-based hitboxes
  • Emissive textures and custom render passes
  • Animated and selectively rendered model bones
  • Block break particles drawn from a block's own texture instead of the block atlas
  • Pose caching and instanced rendering
  • Molang expressions and query support
  • Compatibility with Sodium, Iris, Oculus, and other rendering mods
  • Minecraft 1.20.1 and 1.21.1 on Forge, NeoForge, and Fabric

ChaosLib is primarily intended as a developer dependency. Players only need to install it when another mod lists ChaosLib as a requirement.

Project description from CurseForge.

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ChaosAPI by Minecraft version and loader

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4 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

ChaosAPI versions and loaders

5 of 5 releases match

Looking for an older file? The official CurseForge project page is in Resources.

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