Skip to content

SEUS Shaders 1.19.4 → 1.18.2

Stunning visuals, realistic lighting, shadows, and water effects make for an immersive gaming experience.

Support GPUs
Performance ImpactMedium
Features POM+46
CreatedApr 14, 2016
UpdatedDec 24, 2022
  • 3.89 (9.8K)

  • ❤️ 2871
  • 23.8M

Anyone who is familiar with Minecraft is well aware that the game’s general graphics are pixelated and primitive. While this has a touch of simplicity and nostalgia to it, some may find this aesthetic to be rough and stale after a while. So what does one do to freshen up the graphical experience of Minecraft? Sonic Ether’s Unbelievable Shaders, also known as SEUS, is a great way to reinvent the game’s graphics from bland to breathtaking.

Sonic Ether’s Unbelievable Shaders (SEUS) overhauls nearly everything about the game’s graphics. With this shader pack, the water looks clear and fluid, plants look alive and seem to sway back and forth as if they were breathing, and nighttime feels even spookier than ever. Certain aspects about vanilla have connected textures, but those pale in comparison to Sonic Ether’s shaders. Bodies of water, whether small or huge and open, look like a uniform piece–just like they do with real bodies of water. On a windy day, trees and tall grass will dance back in forth in the breeze, and Sonic Ether’s shaders incorporate that sense of animation.

The lighting is quite possibly this shader pack’s greatest virtue. The stale, bleak light offered in vanilla does not give a sense of atmosphere as they do in this shader pack. In fact, most of the light sources in vanilla seem as though they be the same. Yellow light is quite easily the most common, seen from torches, glowstone, lava, fire, and the sun. With this shader pack, color is reintroduced and reborn with each and every light source. Torchlight looks absolutely different from moonlight, just as it should. To add to this, shadows are heavily implemented as well. Something even as small as the grass on the ground can cast a vibrant and deep shadow, perfectly matching up to the sun’s location of course. Daylight is crisp and bright, striking a noticeable difference from the pale light of the moon or torches while in a cave. If all of the game’s lighting features seem the same, Sonic Ether’s shaders is a vibrant way to shake that up.

The sky textures are also one of the most notable features this shaders pack has to offer. The clouds commonly seen in vanilla are pixelated and scattered as if from a predesigned pattern. In this shaders pack, clouds look thin, whispy, and mobile–comparable to the clouds seen just out your window. Looking skyward with this shaders pack will replace those yellow squares with a living image of real clouds. While such realistic clouds may seem to stick out from the traditional pixel aesthetic Minecraft has, the two aspects complement each other quite well. This is most likely due to how Sonic Ether’s shaders overhaul almost everything else about the game, and real clouds go great with real sunshine. Real weather is excellent proof of this.

As with any overhaul texture pack or general shaders pack, it is highly recommended to run Sonic Ether’s shaders on a computer that can handle the graphical overhaul. While these features are beautiful and realistic, older computers may have a hard time keeping up with the profound and vibrant graphical changes.

SEUS PTGI — Screenshots

SEUS Renewed — Screenshots

SEUS Shaders v11.0 — Screenshots

SEUS Versions — Comparison


Over 46 new features are available in SEUS Shaders to enhance your gaming experience.

📊 Performance Impacts

  • None
    No performance decreases
  • Small
  • Medium
  • High
  • Extreme


Our comparison tool makes it easy to compare SEUS Shaders with Minecraft vanilla and other shader packs.

Vanilla Day
Vanilla Day
Vanilla Noon
Vanilla Noon
Vanilla Sunset
Vanilla Sunset
Vanilla Night
Vanilla Night
Vanilla Water
Vanilla Water
Vanilla Underwater
Vanilla Underwater
Vanilla Rain
Vanilla Rain
Vanilla Light
Vanilla Light
Vanilla The Nether
Vanilla The Nether
SEUS Shaders Day
SEUS Shaders
SEUS Shaders Noon
SEUS Shaders
SEUS Shaders Sunset
SEUS Shaders
SEUS Shaders Night
SEUS Shaders
SEUS Shaders Water
SEUS Shaders
SEUS Shaders Underwater
SEUS Shaders
SEUS Shaders Rain
SEUS Shaders
SEUS Shaders Light
SEUS Shaders
SEUS Shaders The Nether
SEUS Shaders





How To Install SEUS Shaders

Supported Optifine Recommend • 1.19.1—1.8.8
  • Support Forge / Vanilla
  • Extra features
  • Good performance
Supported Iris Recommend • 1.19.1—1.16.2
  • Support Fabric / Quilt
  • Better performance, depend on your hardware
Optifine Installation Guide


Your device must have Java installed to run the Forge and Optifine installers.

Quick Java Installation Guide
  1. Download Java

    Download the Java installer from the official website here.

  2. Open Installer

    Once you have downloaded the file, run it and click the Install button.

How to install SEUS Shaders with Optifine?

  1. Download Optifine

    Get the latest version of Optifine for your Minecraft version.
    Download Optifine

  2. Install Optifine

    Run the Optifine installer and follow the on-screen instructions to complete the installation.

  3. Download SEUS Shaders

    Go to the download section and get shaders zip file. Unzip the file if necessary, as some shader developers may bundle multiple shader versions in one zip file.

    Jump to Download Section

  4. Launch Minecraft

    Start the Minecraft launcher and make sure you have the Optifine profile selected.

  5. In-game Shaders menu

    Go to Options > Video Settings > Shaders to access the shaders menu.

  6. Open shaderpacks folder

    Click on the "Shaders Folder" button to open the folder where shaders are stored, so you can add or remove shaders as desired.

  7. Install SEUS Shaders

    Copy or move the downloaded SEUS shaders zip file into the shaderpacks folder.

  8. Select SEUS Shaders

    Choose SEUS shader pack from the list of available shaders in the options menu.

How to install SEUS Shaders with Forge and Optifine?

Quick Installation Guide
  1. Install Forge

    Obtain the latest version of Forge that is compatible with your Minecraft version.
    Download Minecraft Forge

  2. Launch Minecraft

    Start the Minecraft launcher and select the version of Minecraft you want to install Forge on. Run the game once by clicking on the "Play" button to create necessary files for Forge.

  3. Install Forge Client

    Double-click on the Forge installer jar file and choose "Install Client" in the window that appears.

  4. Install Optifine

    Download the Optifine jar file after Forge is installed. Move the Optifine jar file to the mods folder in the .minecraft directory.
    Download Optifine

  5. Launch Forge Profile

    Launch Minecraft using the "Forge" profile, Optifine will be automatically loaded along with Forge.

  6. Install Chocapic13's Shaders

    Now the installation is the same as from the above Optifine instructions, just follow the steps starting from step 5.

Iris Installation Guide


Your device must have Java installed to run the Iris installer.

Quick Java Installation Guide
  1. Download Java

    Download the Java installer from the official website here.

  2. Open Installer

    Once you have downloaded the file, run it and click the Install button.

How to install SEUS Shaders with Iris?

  1. Download Iris Shaders

    Find the latest version of the Iris Shaders installer and download it.
    Download Iris Installer

  2. Install Iris Shaders

    Open the downloaded jar file, and choose the preferred game version and installation type.

    ⯈ Iris Install:
    If you don't plan on using any other mods with Iris, choose this option.

    ⯈ Fabric Install:
    Choose this option if you want to use Iris with Fabric and other mods. The Iris jar files will be copied to the mods folder within the .minecraft directory.

  3. Start Installation

    After selecting the game version and installation type, click the "Install" button to start the installation process.

  4. Launch Minecraft

    Start the Minecraft launcher and make sure you have the Iris profile selected.


    Select the Fabric profile if you opt for the Fabric installation type.
  5. In-game Shader Menu

    Open the Minecraft game and go to Options > Video Settings > Shader Packs to access the shaders menu.


    To simplify the process, simply drag and drop the shader ZIP file directly into the Minecraft window, bypassing the next two steps.
  6. Open shaderpacks folder

    Click on the "Open Shader Pack Folder" button to access the folder where shaders are stored.

  7. Install SEUS Shaders

    Copy or move the shaders zip file into the shaderpacks folder.

  8. Select SEUS Shaders

    Choose installed shader pack from the list of available shaders in the options menu and click the "Apply" or "Done" button to select it.


    When the shader pack is selected, its name will be changed to yellow.

SEUS PTGI Requirements

  • Minecraft 1.14.4 (older version compatibility is a work in progress) or newer
  • OptiFine HD U F3 or newer
    Options > Video Settings > Details > Alternate Blocks: OFF
    Options > Video Settings > Details > Trees: Fancy or Fast
    Options > Video Settings > Quality > Natural Textures: OFF
    Options > Video Settings > Shaders > Shadow Quality: 1x
    Options > Video Settings > Shaders > Old Lighting : DEFAULT

Resource packs with custom block models will probably cause lighting glitches!

PTGI Known Issues

  • Particles aren’t rendered properly yet.
  • Block texture alpha is not considered in diffuse GI tracing, so doors and trapdoors currently don’t let any light through their windows.
  • Being underwater in ravines/caves shows light leaking and “glowing” water fog. This is unavoidable currently.
  • “Disco Floor” flickering artifact is mostly seen in reflections (the new Secondary GI Samples option can help with this).
  • Secondary GI bounces (2nd bounce and onward) can take a while to adapt to lighting changes.
  • Issues with the rendering of semi-transparent/translucent materials.
  • Lighting breaks often when using resource packs with custom models; a solution is being investigated!

📥 SEUS Shaders — Download

Something You Should Know

  • Our links are only from the official developer, so you can be sure they are secure.
  • No modifications or edits are made to the files.
  • 👨‍💻 sonicether is the creator of SEUS Shaders

🔄 Update Logs

  • Atmosphere, cloud, and outdoor lighting improvements: white balance adjustment to make the sky bluer and sunlight less dingy, decreased cloud coverage directly overhead and increased coverage in the distance near the horizon, balanced cloud and sky colors so that ambient shadows aren’t pale and washed out anymore when Clouds in GI is enabled.
  • All blocks in 1.18.1 function properly, including new light sources: candles, glow lichen, and glow berries.
  • Candle lighting is based on the colors in the candle texture itself and how many candles are in a block.
  • Sea pickles and end rods now emit light.
  • GI denoising filter improvements.
  • Reworked default tone mapping for an emphasis on a bright, vibrant look.
  • Increased GI voxel data area size, allowing greater view distance for ray tracing effects.
  • Increased default diffuse and reflection ray lengths to accommodate 1.18’s larger caves and world structures.
  • Improved “HRR” tech: fixed blurring when quickly moving the view, improved stability and responsiveness, improved “Filmic” pixel look setting.
  • Entities now have proper motion vectors and don’t look awful under motion, and contribute properly to motion blur!
  • Default water fog density is now 0, avoiding glowing water issues. You can turn it back on if you miss it!
  • Smoother bloom.
  • Fixed bug seen in the shading of blocks inside smooth reflections.
  • General cleanup for shader options.
  • Changed default torchlight color temperature.
  • Added new option: Lighting > Candlelight Color Temp.
  • Added new option: Lighting > Light Leak Fix. This replaces the old light leak fix options previously found in Raytracing settings. This has been reworked/improved to not be based on where the player is, so moving in and out of caves no longer awkwardly enables/disables light leaking.
  • Reworked Utility > Visualize Dangerous Light Level option. Considers that mobs now require light level 0 to spawn and doesn’t look blinding and horrible anymore.
  • Added new option: Surface > Texture LOD Bias. Higher values increase detail in textures but can lead to instability, ghosting, and reduced performance. Lower values improve image stability and performance but can lead to lower-resolution textures at a distance and grazing angles.
  • Added new option: Surface > Anisotropic LOD Bias. Enabled by default. When enabled, it preserves details on surfaces at higher grazing angles. Similar tradeoffs as Texture LOD Bias.
  • Added new option: Surface > Wet Caves Effect. Disabled by default. An experimental effect that attempts to make surfaces inside caves damp/wet.
  • Added Raytracing > GI Responsiveness option. High responsiveness allows lighting to respond to changes more rapidly but can cause instability and decreased detail. Low responsiveness allows more samples to accumulate over time and offers increased detail and stability but causes laggy lighting.
  • Fixed crazy bloom when in lava.
  • Fixed caustic bugs.
  • Added short raytraced contact shadows.
  • Fixed certain flowing lava shapes not being voxelized or contributing to lighting.
  • New physically-inspired low-light vision effect which now applies on top of the entire image instead of fakely on certain light types and improves the look of night scenes.
  • Moonlight overhaul: the moon phase now properly affects nighttime lighting, being fairly bright during the full moon and very dark during new moon.
  • Moon and moonlight color tweak.
  • Starlight contribution to GI at night, providing some visibility even when the sky is very dark at night when the moon is at its darkest phase.
  • Increased max ray distance for Atmospheric Godrays.
  • Improved energy conservation in reflection filter. Rougher surfaces now show more subtle reflections more visibly.
SEUS Renewed 1.0.1
  • Improved GI and SSAO.
  • Super smooth Temporal Anti-Aliasing.
  • Completely reworked system for day/night cycle based on atmospheric scattering.
  • Accurate sunlight color via atmospheric scattering.
  • Accurate ambient sky lighting from atmospheric scattering via Spherical Harmonics.
  • New atmospheric scattering on distant land for a natural senseofscale.
  • New underwater rendering.
  • Normal/bump mapping from torch/artificial light.
  • Screenspace shadow tracing for better contact shadows.
  • Vastly improved performance with long render distance settings.
  • Physically-based specular highlights from sunlight.
  • Improved 2D clouds.
  • Improved rendering of stained glass.
  • New rain/wet effects.
  • End and Nether shaders.
  • Improved POM and POM self-shadowing.
  • Improved shadows.
  • Fixed graphical glitches related to TAA occurring on newer NVIDIA graphics hardware/drivers.
  • Many more, too many to list here!
SEUS Legacy v11
  • Variable Penumbra Soft Shadows.
  • Proper rendering of transparent objects.
  • Proper light absorption through stained glass.
  • Stained glass-colored shadows.
  • New volumetric clouds.
  • New water rendering.
  • Water caustics.
  • Crepuscular rays.
  • Improved GI
  • Vastly improved shadow and GI render distance.
  • Automatic exposure adjustment based on average brightness.
  • More natural/realistic lighting values.
  • Atmospheric scattering.
  • New BRDF for diffuse and specular lighting.
  • Spider / Enderman’s eyes no longer look glitched.

Post a new comment

All comments go through a moderation process, and should be approved in a timely manner. To see why your comment might not have been approved, check out our Comment Policy page!

Your email address will not be published. Required fields are marked *

Comments (159)

I dont know about other version but the PTGI version is extremely lag when you turn anything to 2x, it even destroying my i9 cpu and 3060ti, i thought my pc was going to explode lol

Im having a weird glitch where some of my dirt blocks have water reflections on them. Does anyone know which setting I need to tweak to fix this?