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Low Hadal Shaders

Lightweight Minecraft 1.21.1 shader focused on low-end PCs, underwater atmosphere, cleaner water, animated vegetation and high FPS.
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Low_Hadal_Shaders_v1.1_OFFICIAL.zip

File nameLow_Hadal_Shaders_v1.1_OFFICIAL.zip
Uploader
BrunoPavilBrunoPavil
Uploaded
Oct 24, 2026
Downloads
70
Size
218.8 KB
File ID
9304867
Type
R
Release
Supported game versions
  • OptiFine
  • 1.21.1
  • Iris

What's new

Low Hadal Shaders v1.1

This is a major visual and performance update to Low Hadal Shaders.

Sky & atmosphere

  • Completely reworked the Overworld sky and atmosphere.

  • Added smoother and more natural day, sunset and night transitions.

  • Added a darker and more atmospheric night while preserving gameplay visibility.

  • Added adapted Natural and Boxy cloud styles with configurable quality.

  • Improved cloud movement, nighttime visibility and integration with the sky.

  • Improved sun and moon atmospheric integration.

  • Brought the approved permanent night-sky treatment to Hadal Veil's Abyss dimension.

Lighting

  • Added lightweight dynamic hand-held item lighting.

  • Preserved dark nighttime world lighting so torches and other local light sources remain meaningful.

  • Shadow maps remain disabled to keep the shader suitable for lower-end hardware.

Water & environment

  • Preserved and refined Low Hadal's clear water and depth-aware underwater atmosphere.

  • Preserved biome-aware fog coloration.

  • Kept the Abyss water and fog behavior independent from the Overworld sky port.

  • Preserved animated vegetation.

Performance

  • Removed redundant shader calculations without intentionally reducing visual quality.

  • Optimized already-tonemapped sky handling and discarded sky-gradient work.

  • On the primary Intel UHD test system, the final optimization pass improved performance from roughly 65–70 FPS to around 80–85 FPS while preserving the approved visual result.

Credits

Low Hadal Shaders v1.1 includes modified/adapted portions of MakeUp Ultra Fast 9.6 by Javier Garduño, licensed under the GNU LGPL v3.

The download includes the applicable license texts, original credits, editable GLSL source and a detailed modification/port manifest.

This mod has no additional files