Eternal Prism
A cinematic Iris shader that makes Minecraft feel alive — volumetric light, 3D clouds, living water and a night sky worth staring at. Scales from low-end PCs to cinematic ultra.
Features
Light & Atmosphere
- Volumetric light — real light shafts through trees and terrain
- Soft shadows (PCSS) — shadows blur naturally with distance
- Two-tone lighting — warm sunlight, cool sky ambient
- Height-based ground fog — morning mist settles in valleys
- Aerial perspective — distant terrain fades into the sky
Sky
- Volumetric 3D clouds with self-shadowing (SUPER_HIGH/ULTRA)
- Milky Way, nebulae and twinkling stars at night
- Aurora borealis — procedural, different every night
- Golden sunsets with time-of-day color grading
Water
- Gerstner waves — physically-shaped, animated
- Screen-space reflections — water mirrors the world
- Caustics, foam and subtle rainbow iridescence (it is a prism, after all)
World
- Swaying foliage — leaves, grass and flowers react to wind
- Wet surfaces in rain — blocks darken and shine
- Cinematic post-processing — bloom, DoF, film grain, ACES tone mapping
Fully customizable — 26 options
Toggle every effect individually and tune brightness, saturation, contrast, wave height, fog density and more — right from Shader Options. No reinstall needed.
Requirements
- Minecraft 1.21.x
- Iris Shaders
Installation
- Download the .zip
- Drop it into
.minecraft/shaderpacks/(no need to unzip) - Options → Video Settings → Shader Packs → Eternal Prism
- Click the gear icon to open Shader Options
Feedback and bug reports are very welcome!