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    2,024,305 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 24 Oct 2026.636,163 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 24 Oct 2026.269,486 projects gradedProjects with a letter from A to F. Counted on 24 Oct 2026.
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    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Iris & Oculus Flywheel Compat

    Mod

    Enable Flywheel's optimizations when using shaderpacks.

    B81/ 100
    • OverviewB
    • SecurityPassed
    • PrivacyNone found
    • AIPossible AI tool
    • CompatibilityUp to 1.21.1
    • ModpacksIn 5,597
    • ReleasesLatest 6 May

    Download

    iris-flywheel-compat-Fabric-2.0.5.jar

    Released 7 Oct 2025 · 115.7 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Iris ShadersAMinecraft 1.21.1 · Fabric (release 1.8.8)
    • SodiumNeeded by Iris ShadersAMinecraft 1.21.1 · Fabric (release 0.8.13)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Public source code and issue tracker
    • Widely used

    Points lost

    • Many modpacks removed it−9 points
    • No release in 6 months−4 points
    • Releases replaced within 3 days to fix a problem−1 point
    All 11 criteria

    • Maintenance

      2 points lost25 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.6 months ago (6 May 2026). 903 modpacks released in the last 6 months still include it, so it keeps 80% of these points. 10 / 12
      Supports 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.1.21.1 on Fabric and NeoForge, 1.20.6 on Forge. 15% or more of the popular mods updated in the last 6 months also have files for 1.21.1. Latest Minecraft: 26.3. 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 10 of the last 24 months 6 / 6

    • Stability

      10 points lost12 / 22
      Removed 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.141 of the 381 modpacks with two or more versions removed it in a later one (37%) See the 141 modpacks1 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.2 of its 15 releases in 2 years needed a quick fix (13%) See the 2 releases6 / 7
      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.1 of 2 known conflicts counts in the grade See the 2 known conflicts5 / 5

    • Transparency

      Full points10 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · leon-o/iris-flw-compat 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · leon-o/iris-flw-compat 3 / 3

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.45,237,334 4 / 4

    • Track record

      2 points lost6 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.4.2 years, 69 releases 6 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 4 latest files for recent Minecraft versions. See Security
    Total81 / 100

    57.2 of the 71 points that apply = 81 out of 100. The points above are rounded to whole numbers.

    About

    Iris & Oculus Flywheel Compat keeps Flywheel’s GPU-instancing optimizations available for Create entities while shaderpacks are enabled, addressing the CPU bottleneck of the usual rendering method for large groups of repeating parts such as gears. It merges Flywheel’s shaders with the shaderpack so those entities can use instanced rendering, and supports PBR and most shaderpacks without requiring patches. Tested shaderpacks include BSL, Complementary and Complementary Reimagined, SEUS Renewed, Sildur’s Vibrant Shaders, AstraLex, Photon, Kappa, Nostalgia, Rethinking Voxels, and SEUS PTGI HRR. The mod has no effect when shaderpacks are not in use, since Flywheel’s optimizations are enabled by default in that case.

    Written from Modrinth and CurseForge . How we write it

    In-game changes

    Changes the game's code in 2 areas: World renderingChanges 1 game code file in this area: drawing the terrain, sky, clouds and weather. and Rendering and graphicsChanges 1 game code file in this area: drawing mobs, items, particles and textures on screen..

    A library packed inside it changes 13 more game code files: Flywheel.

    Adds no new blocks, items or other content.

    Keeps all of vanilla Minecraft's textures, models and sounds.

    Often used with it

    See all 30
    Create Slice & DiceACreate DecoBCreate: Enchantment IndustryACreate: Steam 'n' RailsAsparkA

    Details

    Creator
    leon-o
    License
    Creative Commons Zero v1.0 Universal
    Downloads
    45.2M
    Created
    15 Aug 2022
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues

    Security

    No harmful code found

    We checked its files and read their code, without running it.

    What it can do on your computer

    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them. Only in its files for NeoForge 1.21.1.

    Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.

    How we checked · All 12 latest files checked, last on 16 Oct 2026
    • 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.
      12 latest files: the newest file for each Minecraft version and loader. The answer above is about the 4 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
    • Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.
      Read without running it
    • 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.
    • Looked for, not foundWe looked for these in the file and did not find them.
      The internet, folders outside the game, other programs, updating itself, the webcam or microphone, an AI service.

    Privacy

    We found nothing it sends

    We read its code without running it: it contacts no web address while you play.

    Why we show this: a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.

    How we checked · All 4 files read
    • Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.
      The code of all 4 files, for recent Minecraft versions. See each file in Releases
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares crash reports, usage data and advertisements. Since 13 Aug 2026, Modrinth's rules require it when a project collects data on its users or shows advertisements.
      Nothing declared about crash reports, usage data or advertisements.

    AI

    An AI tool may have been used

    An instructions file for AI instructions file (AGENTS.md) is in its repository.

    This does not show that it was used to make the files you download.

    No sign of AI in the game

    We found no AI service, AI library or AI model file in its code.

    Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.

    How we checked · 6 places read
    • 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.
      No AI content or AI features declared.
    • Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.
      Possible signThe tool was seen around the project. This does not show that it was used to make the files you download.: A AI instructions file (AGENTS.md) file AGENTS.md
    • Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.
      Nothing found
      34 of 40 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 found
      2 images read
    • Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.
      No AI service, AI library or AI model file
      57 code files read

    Compatibility

    See all 69 files
    Fabric
    NeoForge
    Forge
    1.181.201.2126.1

    Point at or tap a version to see its loaders.

    Runs onWhere to install it: in your game, on the server, or both. As the author says on Modrinth.Install it in your game only. Servers do not need it, so you can join any server.
    RequiresProjects you must also install for it to work. From the author's lists for its files for recent Minecraft versions, or from its project page.
    Iris Shaderson Fabric and NeoForgeASodiumon NeoForgeAOculuson ForgeC
    OptionalProjects it can work with but does not need. The author lists them.
    Createon NeoForge and ForgeB
    IncludesProjects packed inside its files.Nothing
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.It has no file for Minecraft versions newer than 1.21.1. Many recently updated mods still support 1.21.1.

    Known conflicts

    These projects do not work together with Iris & Oculus Flywheel Compat: their authors or Iris & Oculus Flywheel Compat's author say so. If you install both, the game can crash or some features can stop working. Some of them do the same job as Iris & Oculus Flywheel Compat, so you only need one.

    ProjectTypeDownloadsDeclared by
    ColorwheelMod31.5M downloadsdeclared by ColorwheelColorwheel for Create FlyMod882 downloadsdeclared by Colorwheel for Create Fly

    Related projects

    Projects that need Iris & Oculus Flywheel Compat to work.

    ProjectTypeDownloadsGrade
    Lands of Eclipsia - Official Modpack89%Modpack: 89% of its graded mods are A or BModpack231 downloads

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    4002000
    Oct 2024: 298 modpacksNov 2024: 283 modpacksDec 2024: 329 modpacksJan 2025: 325 modpacksFeb 2025: 304 modpacksMar 2025: 253 modpacksApr 2025: 185 modpacksMay 2025: 191 modpacksJun 2025: 212 modpacksJul 2025: 214 modpacksAug 2025: 273 modpacksSep 2025: 273 modpacksOct 2025: 229 modpacksNov 2025: 271 modpacksDec 2025: 263 modpacksJan 2026: 206 modpacksFeb 2026: 180 modpacksMar 2026: 172 modpacksApr 2026: 216 modpacksMay 2026: 281 modpacksJun 2026: 248 modpacksJul 2026: 221 modpacksAug 2026: 207 modpacksSep 2026: 184 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 2024298
    Nov 2024283
    Dec 2024329
    Jan 2025325
    Feb 2025304
    Mar 2025253
    Apr 2025185
    May 2025191
    Jun 2025212
    Jul 2025214
    Aug 2025273
    Sep 2025273
    Oct 2025229
    Nov 2025271
    Dec 2025263
    Jan 2026206
    Feb 2026180
    Mar 2026172
    Apr 2026216
    May 2026281
    Jun 2026248
    Jul 2026221
    Aug 2026207
    Sep 2026184

    5,597 modpacks include Iris & Oculus Flywheel Compat in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Prominence™ II: Hasturian Era15.4M downloadslast version with it 20 Mar 2026DawnCraft - Echoes of Legends10.5M downloadslast version with it 20 Nov 2025DeceasedCraft - Urban Zombie Apocalypse9.8M downloadslast version with it 12 Jul 2024Homestead3.6M downloadslast version with it 22 Jan 2026Beyond Depth3.4M downloadslast version with it 7 Jul 2026All the Mods 7 - ATM73.1M downloadslast version with it 21 Mar 2024SteamPunk [LPS]3M downloadslast version with it 2 Nov 2025Craftoria2.9M downloadslast version with it 27 May 2025Craft to Exile 2 - 2.0 Atlas Update2.8M downloadslast version with it 12 Nov 2024BounceSMP: Public2.8M downloadslast version with it 18 Nov 2023
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Iris & Oculus Flywheel Compat. Share: how many of the modpacks with Iris & Oculus Flywheel Compat also have that mod.

    ProjectTypeShareGrade
    Create Slice & DiceAModin 56% of the modpacks with Iris & Oculus Flywheel CompatCreate DecoBModin 55% of the modpacks with Iris & Oculus Flywheel CompatCreate: Enchantment IndustryAModin 54% of the modpacks with Iris & Oculus Flywheel CompatCreate: Steam 'n' RailsAModin 52% of the modpacks with Iris & Oculus Flywheel CompatsparkAModin 52% of the modpacks with Iris & Oculus Flywheel CompatChippedCModin 52% of the modpacks with Iris & Oculus Flywheel CompatCreate: Copycats+AModin 50% of the modpacks with Iris & Oculus Flywheel CompatAttributeFixAModin 46% of the modpacks with Iris & Oculus Flywheel CompatServer Performance - Smooth Chunk SaveAModin 45% of the modpacks with Iris & Oculus Flywheel CompatSodium Dynamic LightsCModin 44% of the modpacks with Iris & Oculus Flywheel Compat
    1 to 10 of 30123

    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.

    MinecraftLoaderVersionSecuritySendsRequires
    1.21.1·Fabric2.0.52.0.5 · iris-flywheel-compat-Fabric-2.0.5.jarSends: None foundRequires:Iris ShadersPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge2.4.0-release2.4.0-release · iris-flywheel-compat-NeoForge-2.4.0.jarSends: None foundRequires:Iris Shaders, SodiumPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1 to 1.20.6·Fabric1.1.21.1.2 · iris-flywheel-compat-fabric1.20.1+1.1.2.jarSends: None foundRequires:Iris ShadersPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20 to 1.20.6·Forge1.1.21.1.2 · oculus-flywheel-compat-forge1.20.1+1.1.2.jarSends: None foundRequires:OculusPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.20.2 to 1.20.6·Fabric1.1.11.1.1 · iris-flywheel-compat-fabric1.20.1+1.1.1.jarSends: None foundRequires:Iris ShadersPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20 to 1.20.6·Forge1.1.11.1.1 · oculus-flywheel-compat-forge1.20.1+1.1.1.jarSends: None foundRequires:OculusPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19.2 to 1.19.4·Fabric1.0.21.0.2 · iris-flywheel-compat-fabric1.19.2+1.0.2.jarSends: None foundRequires:Iris ShadersPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19.3 to 1.19.4·Fabric1.0.11.0.1 · iris-flywheel-compat-fabric1.19.2+1.0.1.jarSends: None foundRequires:Iris ShadersPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19 to 1.19.4·Forge1.0.21.0.2 · oculus-flywheel-compat-forge1.19.2+1.0.2.jarSends: None foundRequires:OculusPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19 to 1.19.4·Forge1.0.11.0.1 · oculus-flywheel-compat-forge1.19.2+1.0.1.jarSends: None foundRequires:OculusPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 1212

    69 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1The latest file for its Minecraft version and loader·NeoForge2.4.0-release2.4.0-release · iris-flywheel-compat-NeoForge-2.4.0.jar (main file)·6 May 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 885.9 KB
    1.21.1·NeoForge2.3.1-release2.3.1-release · iris-flywheel-compat-NeoForge-2.3.1.jar (main file)·3 May 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 872.1 KB
    1.21.1·NeoForge2.3.0-release2.3.0-release · iris-flywheel-compat-NeoForge-2.3.0.jar (main file)·26 Apr 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 871.0 KB
    1.21.1·NeoForge2.2.02.2.0 · iris-flywheel-compat-NeoForge-2.2.0.jar (main file)Beta·2 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 868.9 KB
    1.21.1·NeoForge2.1.22.1.2 · iris-flywheel-compat-NeoForge-2.1.2.jar (main file)·1 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 873.0 KB
    1.21.1·NeoForge2.1.02.1.0 · iris-flywheel-compat-NeoForge-2.1.0.jar (main file)·18 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 863.2 KB
    1.21.1·NeoForge2.0.52.0.5 · iris-flywheel-compat-NeoForge-2.0.5.jar (main file)·7 Oct 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 115.9 KB
    1.21.1The latest file for its Minecraft version and loader·Fabric2.0.52.0.5 · iris-flywheel-compat-Fabric-2.0.5.jar (main file)·7 Oct 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 115.7 KB
    1.21.1·NeoForge2.0.42.0.4 · iris-flywheel-compat-NeoForge-2.0.4.jar (main file)·7 Jul 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 114.5 KB
    1.21.1·Fabric2.0.42.0.4 · iris-flywheel-compat-Fabric-2.0.4.jar (main file)·7 Jul 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 114.8 KB
    1.20.1·Forge2.0.32.0.3 · oculus-flywheel-compat-Forge-2.0.3.jar (main file)Beta·25 Jun 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 114.5 KB
    1.21.1·Fabric2.0.32.0.3 · iris-flywheel-compat-Fabric-2.0.3.jar (main file)Beta·21 Jun 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 114.4 KB
    1.21.1·NeoForge2.0.32.0.3 · iris-flywheel-compat-NeoForge-2.0.3.jar (main file)Beta·21 Jun 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 113.9 KB
    1.21.1·NeoForge2.0.22.0.2 · iris-flywheel-compat-NeoForge-2.0.2.jar (main file)Beta·20 Jun 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 114.0 KB
    1.21.1·NeoForge2.0.12.0.1 · iris-flywheel-compat-NeoForge-2.0.1.jar (main file)Beta·15 Jun 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 101.5 KB
    1.21.1·NeoForge2.0.02.0.0 · iris-flywheel-compat-NeoForge-2.0.0.jar (main file)Alpha·11 May 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Alpha · 100.0 KB
    1.20.1·Forge1.1.41.1.4 · oculus-flywheel-compat-forge1.20.1+1.1.4.jar (main file)Beta·17 Nov 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 89.4 KB
    1.20.1·Fabric1.1.41.1.4 · iris-flywheel-compat-fabric1.20.1+1.1.4.jar (main file)Beta·6 Oct 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 89.4 KB
    1.19.2·Forge1.0.3b1.0.3b · oculus-flywheel-compat-forge1.19.2+1.0.3b.jar (main file)Beta·6 Oct 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 88.9 KB
    1.19.2·Fabric1.0.3b1.0.3b · iris-flywheel-compat-fabric1.19.2+1.0.3b.jar (main file)Beta·6 Oct 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 89.0 KB
    1 to 20 of 691234

    Quick fixes

    In the last 2 years, 2 releases needed a quick fix: a new release within 3 days to fix a problem. This lowers the grade by 1 point.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.2

    • NeoForge 1.21.1+2.4.0-release6 May 2026…2.4.0 - Fix ghost block preview turning black under shader packs…
    • NeoForge 1.21.1+2.0.3-beta21 Jun 2025…2.0.3 Fix issue…