Prismanium is a performance-focused renderer fork for Minecraft Forge built for large modpacks that need smoother rendering, better compatibility, and extra quality-of-life features.

It is based on the Sodium/Embeddium rendering stack and expands it with integrated dynamic lights, Oculus shader compatibility work, TACZ rendering optimizations, split-screen improvements, realtime performance overlays, and safer diagnostic tools for modpack troubleshooting.

Main Features

Optimized chunk rendering based on the stable Sodium/Embeddium pipeline
Integrated dynamic lights for held items, dropped items, entities, accessories, and compatible gear
Oculus shader compatibility improvements
TACZ rendering and attachment cache optimizations
Realtime FPS, frame time, CPU, and GPU overlay
Optional log issue notifier for recipes, mixins, server lag, network pressure, worldgen, and crashes
Split-screen detection and optimizations for multiple local Minecraft instances
Borderless window mode alongside normal fullscreen and windowed mode
GUI/HUD performance optimizations
Entity and block entity culling options
Integrated server tick budget optimizations for singleplayer/LAN worlds

Prismanium is designed for modded gameplay where performance, shaders, weapons, dynamic lights, and large mod lists need to work together without sacrificing visual quality.

Compatibility Focus

Prismanium currently focuses on Forge 1.20.1 compatibility with Oculus, TACZ, ModernFix, Lithium-compatible environments, Xaero’s Minimap/World Map, JEI-heavy packs, and large CurseForge modpacks.

This project is still evolving, so feedback, logs, and compatibility reports are welcome.