Hysteria ShadersShaders · 1.8 – 1.21Atmospheric, highly customizable horror shaderpack, successor of Insanity Shader.
Free3,684,679 downloads
A customizable flashlight shader
Direct download from Modrinth · 14,645 downloads
Kefir's Flashlight is a shader pack made by Kefirchik_. A customizable flashlight shader.
It supports Minecraft 1.19 – 1.21. It has been downloaded 14,645 times on Modrinth. The last update came out on Dec 13, 2025.
Kefir's Flashlight has had 2 releases on Modrinth since Dec 11, 2025. 2 of them came out in the past year. The newest is 1.1.0, released on Dec 13, 2025. It is made for Minecraft 1.19 – 1.21.11. It runs on Iris. The download is 10 KB.
| Version | Released | Minecraft | Type |
|---|---|---|---|
1.1.0 | Dec 13, 2025 | 1.19 – 1.21.11 | Release |
1.0.0 | Dec 11, 2025 | 1.19 – 1.21.11 | Release |
Kefir's Flashlight is open source. Its newest release on GitHub is 1.1.0, published on Dec 13, 2025.
Added color adjustment for each layer of light
Before that: v1.0.0 (Dec 12, 2025).
Turn Minecraft into an atmospheric horror experience. This shader pack completely replaces the vanilla lighting engine with a highly realistic, customizable flashlight system.
Unlike standard lighting mods that just place a light block where you look, this shader simulates a volumetric light beam projecting from your camera into 3D space. It interacts with fog, fades naturally over distance, and creates a genuine sense of dread.
Access the Shader Options menu to tweak every aspect of the light
macOS / Linux Friendly: Written in modern GLSL 330 Core, ensuring full compatibility with M1/M2/M3 Macs and modern Linux drivers.
This project is Open Source (MIT). You are free to use this in your modpacks, adventure maps, or modify the code for your own projects.
Written by Kefirchik_. Read it with pictures on Modrinth.
Install Iris (with Sodium) or OptiFine for your Minecraft version: shaders need one of them.
Download the .zip file from Modrinth. Do not unzip it.
In Minecraft, open Options, then Video Settings, then Shader Packs, and click Open Shader Pack Folder.
Drop the .zip file into that folder, pick Kefir's Flashlight in the list and click Done.
Shaders are heavy on the graphics card. If the game gets slow, pick a lower profile in the shader settings.
Full guide: How to install Minecraft shaders
| Resource | Downloads | Versions | Last update | Price |
|---|---|---|---|---|
| Kefir's Flashlightthe one you looked at | 15K | 1.19 – 1.21 | Dec 13, 2025 | Free |
| Hysteria ShadersElocinDev | 3.7M | 1.8 – 1.21 | Aug 2, 2024 | Free |
 Flashlight ShaderGN | 496K | 1.16 – 1.21 | Mar 23, 2025 | Free |
 TrueLightFXOGCRAFTNET_ | 96K | 1.8 – 26.x | 4 days ago | Free |
Not yet. The newest version it supports is Minecraft 1.21.
Yes. Kefir's Flashlight is free to download from Modrinth.
Yes. The last update came out in the past day.
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