IterationT Shaders (1.20.6, 1.20.1) is an impressive shaderpack for Minecraft that introduces a host of atmospheric enhancements. This shader pack can completely transform your Minecraft world into a hyper-realistic scene. I can assure you that you’ll be amazed and astonished when experiencing this shader. To truly appreciate its beauty, you’ll need a high-performance computer and a powerful graphics card. In my opinion, this is one of the most impressive shaders of 2024.

Features:

Atmospheric System

  • Brand-new Sky Appearance: Introduces a completely new sky appearance through updated models.
  • Comprehensive Planetary Atmosphere Simulation: Provides a full-fledged simulation of planetary atmospheres.
  • Physically Modeled Rendering of Celestial Bodies in the Atmosphere: Renders celestial bodies based on physical models.
  • Volumetric Cloud Adjustments: Fine-tunes volumetric cloud rendering.
  • Ground Scattering Adapted to Atmospheric Models: Adds ground scattering that aligns with the atmospheric model.

Global Illumination System:

  • Enhanced global illumination details and color representation.
  • Eliminated block edge artifacts.
  • Improved transitions when out of range.

Underwater Rendering:

  • Adjusted water fog.
  • Rewritten underwater volumetric lighting.
  • Fine-tuned caustic effects.

Volumetric Fog:

  • Softer volumetric fog appearance.
  • Optimized lighting weights.
  • Added options for refraction during rendering.
  • Reduced visibility of noise patterns.

End Dimension:

  • Added celestial bodies (black holes).
  • Introduced star ring projections, dynamic skies, and gravitational lensing.
  • Adjusted exposure and shadow quality.

Nether Dimension:

  • Enhanced ambient fog, reduced jitter.
  • Compatibility with Biomes O’ Plenty extended biomes.

Material System:

  • New parallax algorithm.
  • Added anisotropic filtering support.
  • Included PBR self-illumination.
  • Optimized wet effects.

Weather System:

  • New raindrop rendering, snowflake detection.
  • Adapted rain effects to the new atmospheric model.

Post-Processing:

  • Added lens flares.
  • Rewrote bloom algorithm.
  • Adjusted exposure logic.

Cave Mode:

  • Significantly improves visibility in dark caves when enabled (right side).

Other Features:

  • Custom adjustments for multiple light sources.
  • Tweaked sky illumination curves and block light levels.
  • Fine-tuned various light source intensities.
  • Added Nether ambient lighting and fog settings.
  • Adjusted shadow base blur and introduced custom options.
  • Enhanced shadow quality and added related options.
  • Tweaked plant subsurface scattering.
  • Automatic texture pack resolution detection.
  • Compatibility options for modded blocks.
  • Refined water wave appearance and added custom options.
  • Adjusted block specular intensity.
  • Added underwater fog rendering after transparent blocks.
  • Multiple customizable rain options.
  • Toggle for underwater volumetric fog.
  • Horizon switch for sky and reflected skybox.
  • Improved metal sky reflection occlusion transitions.
  • Added fine snow mist and magma fog, closely resembling the original.
  • Altered blindness effect to match the original.
  • Updated fog distance calculations for most effects.
  • Tweaked night vision.
  • Optimized depth of field sampling.
  • Auto-weight mode for exposure brightness.
  • Adjusted default auto-exposure modes for each dimension.
  • Added blackout option.
  • Tweaked darkening effect and introduced related custom options.
  • Added startup title.
  • Special rendering effects for End Portal.

Bug Fixes:

  • Transparent flag transparency loss.
  • Handheld flag transparency loss.
  • Unrendered snowflakes.
  • Missing lightning rendering.
  • Enchantment glint rendering error.
  • Disappearing transparent blocks.
  • CTM overlay causing incorrect transparency rendering.
  • Specular maps interfering with raindrops.
  • Missing grass sway in tall grass.
  • Render error when disabling “specular maps” or “normal maps.”
  • Tiny normal offset errors.
  • Render glitch when normals point directly upward.
  • Block boundary rendering issues.
  • Unrendered hitboxes.
  • Fishing rod lines not rendering.
  • Missing redstone line glow.
  • Overly bright blaze textures.
  • Black bands in reflections on completely smooth surfaces.
  • Abnormal water fog layers for transparent blocks.
  • Incorrect day-night transition times.

Screenshots:

Requires:

Optifine HD or Iris Shaders

How to install:

IterationT Shaders (1.20.6, 1.20.1) Download Links

For All Versions from Minecraft 1.7.10 to Minecraft 1.20.6, 1.20.4, 1.20.1

v2.0.0: Download from Server 1Download from Server 2

v3.0.0: Download from Server 1Download from Server 2

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