TrueLightFX

TrueLightFX

vv5.1.2
Modrinth 17 followers 59 979 downloads
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TrueLightFX is a custom Minecraft shader offering a wide range of customizable settings.

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TrueLightFX Shader for Minecraft

TrueLightFX is a custom Minecraft shader based on the open-source Prismarine Shader. This shader aims to enhance the visual experience of Minecraft by adding realistic lighting, shadows, and atmospheric effects while maintaining good performance. With TrueLightFX, players can enjoy immersive gameplay with improved light dynamics, smooth water reflections, and vibrant colors—perfect for both low-end and mid-range systems. Credits to Septonious: Source Project using older MIT Release of Source Project

Compatibility:
TrueLightFX might work with the Minecraft versions 1.8.2 – 1.19, but older versions may experience bugs and reduced smoothness. For the best experience, it is strongly recommended to use Minecraft 1.19 or newer.Also I dont recomment using optifine bc of some features that are very buggy on Optfine but on Iris they just work fine!Also please note that I would recommend you to only use Versions of the game where Iris&Sodium still get updates!

Preview

Product images

Environment

Requirements & compatibility

Compatibility & requirements

IrisOptifine1.8.2 – 1.21.1126.126.1.126.1.226.2

Local host

Required

Hosting on services

Unsupported

Terms

License

Terms for using, modifying and redistributing this product.

MIT LicenseModrinth
Release

Latest release

vv5.1.2

12.07.2026 · Modrinth

TrueLightFX v5.1.2 - Compatibility & Color Hotfix

Fixes for Compatibility of Older Game Versions

  • Fixed a shader compilation crash (endCol undeclared) on older Iris and OptiFine versions by converting relative include paths to absolute paths and ensuring End color variables are declared globally.
  • Fixed a pipeline crash (Non [a-z0-9/._-] character in path) on older Iris versions by converting uppercase Prismarine block IDs to lowercase in block.properties.
  • Restored original...