Plutonium244

Plutonium ChunkRender Optimizer drastically reduces CPU and GPU load by limiting rendering to only the blocks that have actually been modified.

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Quick challenge

How far can you run before the mobs catch you?

Plutonium244

# Plutonium244 — Smarter Chunk Rendering for Minecraft

> **Stop re-rendering what hasn't changed.**
> Plutonium244 is a Fabric optimization mod that targets one of Minecraft's most wasteful rendering habits: invalidating an entire chunk when only a single block changes.

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## The Problem

Every time a block is placed, broken, or updated in Minecraft, the game marks the **entire 16×16 chunk** as dirty and queues it for a full re-render — even if only one block changed in a small corner of that chunk.

In busy environments — redstone contraptions, players building, entities interacting — this creates **hundreds of unnecessary render calls per second**, hammering your CPU and GPU for no reason.

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## The Plutonium Solution

Plutonium244 subdivides each chunk into **16 subchunk sections of 4×4 blocks** and tracks updates at that granular level.

When a block changes, only its **exact 4×4 subchunk section** is marked dirty — not the whole chunk.
The result: drastically fewer render invalidations, lower CPU and GPU load, and smoother gameplay.

```
Vanilla Minecraft: [ block changes ] → entire 16×16 chunk re-rendered
Plutonium244: [ block changes ] → only the 4×4 section re-rendered
```

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## Features

| Feature | Description |
|---|---|
| **4×4 Subchunk Tracking** | Each chunk split into 16 precise sections — only the affected one is updated |
| **Smart Event Filtering** | Internal Minecraft events (world gen, loading) are ignored to prevent false invalidations |
| **Auto Mod Detection** | Compatible mods detected and logged at startup automatically |
| **Client & Server Ready** | Works in both environments out of the box |

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## Works Great Alongside

Plutonium244 automatically detects and integrates with these popular optimization mods:

⚡ Sodium 🪨 Lithium 🌊 Krypton
💎 Indium ⚙️ C2ME 🗺️ Chunky

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## Requirements

- **Minecraft:** 1.21.11 (Java Edition)
- **Loader:** Fabric 0.18.5+
- **Dependency:** Fabric API

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## ⚠️ Early Development Notice

Plutonium244 is currently in **active early development**. The subchunk tracking system is fully functional, but measurable performance gains will vary depending on your environment, installed mods, and how block-update-heavy your gameplay is.

> Found a bug or have a suggestion? Open an issue and help shape the mod's future!

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## About

Made with ☢️ by **BlackGiack**
with Mit licence

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*Plutonium244 is not affiliated with or endorsed by Mojang or Microsoft.*

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