Rethink Voxels

If you’ve ever wished Minecraft’s visuals could evolve beyond flat lights and simplistic shading, Rethink Voxels Shaders might be your dream come true. This shader pack is an edited spin on the popular Complementary Reimagined baseline, but with a bold twist: it uses voxel-based rendering techniques to deliver sharper lighting, richer colored block lights, and a more immersive feel than many traditional shaders.

In a world crowded with advanced Minecraft shaders, Rethink Voxels stands out by targeting a sweet spot between visual fidelity and relative performance. It doesn’t try to fully emulate Minecraft RTX (though some players say it gets close) — but it does bring in elements like realistic global illumination, crisp shadows, and voxel-style light casting that make exploration and building feel far more dramatic.

Comparison & Version Info

Compare Rethink Voxels to default Minecraft Look.
Rethink Voxels should be compatible with these Minecraft versions: 1.21.10 – 1.21.9 – 1.21.8 – 1.21.7 – 1.21.6 – 1.21.5 – 1.21.4 – 1.21.3 – 1.21.2 – 1.21.1 – 1.21 – 1.20.6 – 1.20.5 – 1.20.4 – 1.20.3 – 1.20.2 – 1.20.1 – 1.20 – 1.19.4 – 1.19.3 – 1.19.2 – 1.19.1 – 1.19 – 1.18.2 – 1.18.1 – 1.18 – 1.17.1 – 1.17 – 1.16.5 – 1.16.4 – 1.16.3 – 1.16

Visual Style: Voxel-Based Lighting, Global Illumination & More

Voxel-Based Shaders Minecraft: What Does That Mean?

Traditional shaders often approximate lighting across surfaces with polygon-based techniques, but Rethink Voxels Shaders leans into a voxelization approach. It effectively subdivides scenes into small volumetric cubes (voxels) for light propagation calculations, allowing block lights to cast sharper, colored beams and more nuanced ambient lighting.

This voxel-based method gives Rethink Voxels its signature aesthetic. Light doesn’t just smear across flat surfaces — it occupies volume, interacts with objects, and feels more tangible. The result is a voxel-based shading look that few other shaderpacks can match.

Realistic Global Illumination: Light That Bounces

One of the biggest upgrades from vanilla lighting is realistic global illumination (GI) — meaning light bounces, diffuses, and interacts with surfaces more naturally. Instead of only direct light, you get layered illumination where adjacent blocks soften, color-shift, or reflect light into darker corners.

This adds depth, prevents pitch-black shadows, and creates a soft “fill light” effect in interior spaces. In darker caves or forests, GI adds subtle luminescence that completely changes the game’s mood.

Shadows, God Rays & Reflections

  • Shadows & Occlusion: Rethink Voxels casts sharper, more accurate shadows even from colored light sources. The shader uses voxelized lighting volumes to decide where light should reach.

  • God Rays / Volumetric Lighting: When sunlight or colored block light passes through leaves or clouds, shafts of light (god rays) appear — especially at dawn or dusk.

  • Reflections & Water Physics: Water, glass, and reflective blocks display realistic reflection and refraction effects. The movement of light across water feels lifelike and immersive.

  • Atmospheric Detail: Expect haze, fog, distance fade, and atmospheric scattering to create cinematic landscapes and smoother depth perception.

Together, voxel light propagation, global illumination, crisp shadows, reflections, and volumetrics give Rethink Voxels Shaders a distinct, high-end visual identity.

Video & Screen Shoots

Why Survival Players Should Try Rethink Voxels Shaders

Rethink Voxels isn’t just for cinematic builds — it transforms everyday survival gameplay.

Immersive Exploration

  • Caves & Mines: Torches and lava emit volumetric light that realistically bounces off walls.

  • Forests & Plains: Sunlight scatters through trees and fog for lifelike depth.

  • Nights: Subtle moonlight, colored block light, and mist create a haunting yet peaceful atmosphere.

Realistic Builds & Interiors

  • Colored lighting from lanterns, redstone, or glowstone adds richness to interiors.

  • Accurate shadows make rooms feel real and textured.

  • Cinematic builds look photo-ready with minimal setup — perfect for screenshots or video content.

Balanced Performance

While more advanced than most shaders, Rethink Voxels can run well on medium rigs with proper settings. Lowering voxel resolution and shadow distance keeps frame rates smooth, even during exploration.

How to Install Rethink Voxels Shaders?

  1. Download the Rethink Voxels for Minecraft using the button below.

  2. Install Iris or OptiFine — we recommend using Iris for smoother performance and higher FPS.

  3. Open your Minecraft Launcher and select the Iris or OptiFine profile you just installed.

  4. Start the game.

  5. For Iris:

    • Go to Options → Video Settings → Shader Packs.

    • Click Open Shader Pack Folder to open the shaderpacks directory.

  6. For OptiFine:

    • Go to Options → Video Settings → Shaders.

    • Then click Shaders Folder to access the shaderpacks folder.

  7. Move the downloaded Rethink Voxels Shaders ZIP file into that folder (.minecraft/shaderpacks).

  8. Return to Minecraft and select Rethink Voxels from your shader list.

  9. Click Done or Apply, and enjoy your new visuals — all the features of Rethink Voxels are now active!

Rethink Voxels Download

  • Credits: Full credit for creating Rethink Voxels goes to Gri573.
  • Please note that none of the files are hosted on our servers — all direct download links are provided by the official creators.
  • Every pack is thoroughly checked and confirmed to be free from viruses, ensuring a completely safe and secure download experience for all users.