BSL Shaders 1.21 / 1.20

5,521,391 views BY capttatsu — Last updated 8 February 2026

Any player of the popular game Minecraft would have to admit that the standard lighting effects leave a lot to be desired when it comes to realism. While realistic graphics are not a part of the world design in the game, the smooth lighting and graphic effects, even when set to their highest level, aren’t exactly the best they could be. The graphics could use just a touch of realism to add to the game’s atmosphere, and its overall aesthetic appeal. When it comes to embellishing the graphics of the game, shaders are the way to go. Especially the BSL Shaders. This shader pack stands out for its unique features as a pack designed specifically for Minecraft: Java Edition. Its features include real-time shadows, volumetric light, ambient occlusion, customizable clouds and water, bloom, etc., in order to add a sense of realism to the environment of the game.

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There are also additional effects available, like motion blur, world curvature, depth of field, specular and normal mapping, and celshading, just to name a few examples. There are no perceivable glitches or bugs throughout the shader pack. The colors come with a boost and saturation alteration, which adds to the atmosphere, particularly for the Nether; the bright, eye-catching colors mixed with the shadows create a very visually pleasing experience. That being said, the BSL Shaders requires a lot of additional resources to your PC and it is not designed for low-spec PC’s. But, as this pack is, quite possibly, the best way to embellish the graphics of your game, it’s well worth any additional installations. To ensure you get the highest quality visuals, BSL Shaders requires Optifine. If you do not already have this mod installed, you will need to do so in order to get the very best experience from this shader pack.

BSL Shaders should be compatible with all of these Minecraft versions: 1.21.11 - 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 - 1.16.2 - 1.16.1 - 1.16 - 1.15.2 - 1.15.1 - 1.15 - 1.14.4 - 1.14.3 - 1.14.2 - 1.14 - 1.13.2 - 1.13.1 - 1.13 - 1.12.2 - 1.12 - 1.11.2 - 1.11 - 1.10.2 - 1.10 - 1.9.4 - 1.9 - 1.8.9 - 1.8.8 - 1.8.6 - 1.8.1 - 1.8 - 1.7.10 - 1.7.9 - 1.7.4 - 1.7

BSL Shaders — Screenshots

How to install BSL Shaders:

Download and install Minecraft.
Open Minecraft launcher and setup your game profile for the Minecraft version you want to run. – in the top menu, select the “Installations” tab, click “New installation”, under the “Version” dropdown, select your preferred Minecraft version and click “Create”.
Download and install Optifine or Iris. – we recommend Iris, it’s a bit more optimized;
Open Minecraft launcher and select the newly created Optifine or Iris profile. – if in step 3 you chose to install optifine it will have an optifine profile, if iris it will have an iris profile;
Download the BSL shader pack from the download section below.
Launch Minecraft.
For Optifine: Go to Options > Video Settings > Shaders and click “Shaders Folder” to open shaderpacks folder.
For Iris: Go to Options > Video Settings > Shader packs and click “Open Shader Pack Folder” to open shaderpacks folder.
Put the BSL shader pack (.zip file) downloaded in step 5 into the .minecraft\shaderpacks folder you opened in step 7.
In the game, select BSL Shaders from the list and click “Done”.

BSL Shaders - Comparison Slider #1 day

Comparison slider #1 for those who want to compare vanilla Minecraft without any shaders installed (on the left) with Minecraft using this particular shader pack (on the right).

Vanilla

BSL Shaders

BSL Shaders - Comparison Slider #2 sunset

Comparison slider #2 for those who want to compare vanilla Minecraft without any shaders installed (on the left) with Minecraft using this particular shader pack (on the right).

Vanilla

BSL Shaders

BSL Shaders Shader Pack Download

Credit for the creation of BSL Shaders goes to capttatsu.
We do not modify or edit any resource packs. All resource packs, shaders and tools found on this website are linked directly to official sources rather than hosted on our own servers. We provide only the official download links from the original creators to ensure that your files are safe and secure.
These official links are updated manually and may occasionally stop working when a new version is released. We work hard to keep everything current so that you have a smooth experience. Please let us know in the comments if you find a link that no longer works.
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Please consider leaving a comment or voting for your favorite packs. This feedback helps authors improve their projects over time. You can also support the creators directly by visiting the official links located below the download section.

DOWNLOAD LINKS

The Java Edition of this shader pack requires Optifine or Iris to run and will not work without them! Get optifine here or get Iris here.

Java Edition:

[1.21.x – 1.7.x] Download BSL Shaders

Download instructions:

Curseforge: download starts automatically after a few seconds;

Mediafire: click the big blue button with the text "DOWNLOAD";

Google Drive: in the top right corner you will see a small download icon (down arrow), click it and the download should start;

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AUTHOR LINKS capttatsu

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BSL Shaders on Curseforge

BSL Shaders on Modrinth

Author: capttatsu

Last updated: 8 February 2026

Category: Shaders

Compatibility: Java

260 comments

Comments regarding "incompatibility message" will no longer be approved as the "incompatibility message" can be easily ignored by simply clicking "Yes" when prompted, or read our article How to fix «made for older version» problem with most resource packs?
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Before commenting that the resource pack crashed your game, google your crash log. This is usually a graphic card driver issue.