Luster Shaders
ShaderA shader with lifelike skies, clouds, water, and lighting.
Why gradeB
How grades workStrengths
Points lost
- First release only 2 months ago−7 points
- Under 5 million downloads−1 point
All 10 criteria
Maintenance
Full points21 / 21Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.Yesterday (23 Oct 2026) 12 / 12Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.26.3 (latest) 9 / 9Regular releasesIn how many of the last 24 months a new file came out. Full points at 3 months.Does not apply. The project is under 6 months old.Stability
Full points5 / 5Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.Not measured yet.Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Does not apply. The project is under 6 months old.Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.None 5 / 5Transparency
Full points3 / 3Source codeWhether the project page links to its source code, so anyone can read what it does.Does not apply. A shader's files can be read in the download.Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker or a Discord server.GitHub issues · FourthEcho/Luster 3 / 3Popularity
1 point lost3 / 4DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.24,774 3 / 4Track record
7 points lost1 / 8AgeHow long the project has existed. It counts less when no new file came out recently.2 months, 19 releases 1 / 8
32.7 of the 41 points that apply = 80 out of 100. The points above are rounded to whole numbers.
Images
About
Luster is a cinematic, gameplay-focused shader pack built on a substantially reworked Photon codebase, designed for Iris with Apple Silicon in mind. It creates a changing atmosphere with biome- and weather-aware skies, mist, auroras, stars, galaxies, rainbows, god rays, and layered volumetric clouds, including cumulus, cirrus, and noctilucent types. Lighting and scene detail include sun, moon, block, Nether, and End lighting, multiple shadow methods, directional ambient lighting, ambient occlusion, and screen-space path tracing. Water combines procedural waves and biome-colored surfaces with physically inspired absorption and scattering, caustics, Snell's window, and roughness-aware reflections; the shader also supports labPBR materials, parallax mapping, and rain puddles. Atmospheric fog adapts to biomes and includes cave, border, Nether, and End variants, while colored volumetric light shafts add further depth. Image-processing options include temporal and spatial antialiasing, temporal upscaling, ACES and AGX tonemapping, color grading, bloom, depth of field, motion blur, vignette, exposure modes, and lens flare. Iris exposes extensive in-game settings and Low, Medium, High, and Ultra profiles, with available features varying by profile and hardware; Luster also supports Distant Horizons and Voxy.
Written from Modrinth and the GitHub README . How we write it
In-game changes
Changes how the game looks: 111 shader programs, for the Overworld, the Nether and the End. Draws its own shadows, water, sky, clouds and weather.
Settings in 9 languages. Has programs for Distant Horizons and Voxy.
Details
- Creator
- FourthEcho
- License
- All rights reserved
- Downloads
- 25K
- Created
- 5 Sep 2026
- Official page
- Modrinth
- Links
- Source code , Issues , Discord
Security
No harmful code found
We checked what is inside its files, without opening them in the game.
Why we show this: a shader cannot run programs, but its file can hide one. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade.
How we checked
- FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.2 latest files: the newest file for each Minecraft version and loader. Both are for recent versions. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. See each file in Releases
- Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.Nothing declared about your system outside the game.
Privacy
Sends nothing
A shader has no code that can connect to the internet, so it cannot send anything about you.
AI
AI was used for its code and text
The author declares AI code and text on Modrinth.
We looked for AI tools in its texts, files, images and code history and found none.
Why we show this: some players and servers avoid projects made with AI. Not in the grade: using AI does not tell whether a project works well or is kept up to date.
How we checked
- Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.Declares AI code, text.
- Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.Nothing found
- Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.Nothing found10 of 19 changelogs read
- Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.Nothing found
- Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.Nothing found2 images read
Compatibility
See all 19 filesPoint at or tap a version to see it.
Modpacks using this project
No known modpack uses it.
Latest files
The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.