SEUS PTGI GFME Shaders (1.21.7, 1.20.1) – Enhanced Path Tracing for SEUS Fans

SEUS PTGI GFME Shaders (1.21.7, 1.20.1) is a heavily modified and community-refined version of the original SEUS PTGI shader. Built for players who want deeper visual control, this pack fixes many of the core bugs in PTGI while unlocking new customization options. From per-pixel path tracing and improved PBR handling to auto texture resolution and metal caustics, it turns Minecraft into a cinematic experience without straying far from SEUS’s original vision.

🔍 Features:

🟡 Per-Pixel Path Tracing: Full support for cutout, transparent, and PBR materials with accurate lighting.

🔧 Bug Fixes & Customization: Fixes various rendering glitches in vanilla PTGI while allowing more user tweaks.

🎨 Vanilla Light Overhaul: Adds color variety to built-in light sources like torches and lanterns.

📦 Texture Pack Friendly: Smart handling of texture resolution, even for incomplete or mixed packs.

🌊 Metal Caustics & Water Effects: Sunlight reflects more realistically off metallic and watery surfaces.

🧱 Better Block Shape Rendering: Improved handling of non-standard shapes and block transparency.

🌗 Performance Tweaks: Optimized to deliver smoother performance compared to older PTGI versions.

Screenshots:

Requires:

Optifine

Iris Shaders Mod

SEUS PTGI HRR v2.1

📥 How to Install SEUS PTGI GFME Shaders

1. Download the .zip file provided below and extract it into a folder of your choice.
2. Run the SEUS-PTGI-GFME-Shaders-All-Versions.jar file by double-clicking it.
   – This will automatically generate a new .zip shader pack in the same folder.
3. Move the newly created .zip file to your Minecraft shaderpacks directory:
   /.minecraft/shaderpacks/
4. Launch Minecraft with OptiFine installed and select the shader from the list.
5. Enjoy the upgraded visuals!

🔗 Need help? Follow our full step-by-step guide here: How To Download & Install Shaders with OptiFine