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1.21 not showing up when using the iris installer

Hi! I was watching this video https://www.youtube.com/watch?v=uoZegpmp4dA and I followed all of the steps, I got java 21 installed, and I also installed the jarfix but when I open up the iris installer it still shows this, no 1.21 found just other versions, hopefully someone can help me with this. Thank you for your time :D YouTube The Breakdown How To Download & Install Shaders for Minecraft 1.21 (PC)...

Need help with adding shader compatibility with my mod

My mod adds a new biome that adds a light fog and a heavy fog event. They do not show up with shaders and I need to make it so you can see the fog with shaders.

Crash TESSELATION_SHADERS

I have the following setup: Minecraft Version 1.20.1 Fabric 0.16.5 Modpack: Prominence II RPG Iris: 1.7.5...
Solution:
Update flywheel compat

Iris on 1.21.3 ruined armor's PBR

As title
Solution:
Reason is Mojang changed texture's name and location
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mods do not recognize fabric

the mods say they need to have a version of fabric or that i dont have fabric, but i installed iris+fabric
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Shaders broken on purpur servers

Shaders work fine in singleplayer worlds, fabric servers, vanilla, etc. but for some reason on purpur servers they break. On purpur servers, the end and nether use the overworld settings, making everything look... awful. Some other people on the server I'm playing on are also having the same issue. I tried with my modpack I'm using and with only sodium and iris, still the same issue...
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I cant see name tags through objects

when i turn off the shaders the name tags just looks normal, i tested 5 shaders and it seems that the problem is the iris, im not using any mods, can anyone help me?
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game not launching when using a certain combination of mods

I've been trying to use distant horizons 2.2.1-a, chunky 1.4.16, and a worldgen mod (big globe 4.5.0) together. unfortunately, the game seems to not want to work at all when trying to use some combinations of the 3. here's what ive tested: chunky or big globe on their own: works fine chunky and big globe: works fine dh with chunky and/or big globe: see first image dh and iris 1.8.0-beta.4+1.21.1 on their own or with the other 2 mods: see second image...
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Neoforge 1.21

The game crashes when I enter it

Lightning, walking

When I run, the light moves in a strange way. I use Labymod 1.21.1 with the following mods: (View Video online)...
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game crashes when i disable and enable shaders

Iris 1.7.5 became unstable for me, performance went down. But the main issue that when i disable and enable shaders game is completely crashes. i've already tried downgrading the iris but the problem remains the same, any ideas how to fix this? i also think there is could be possible mod incompatibilities...

no option for the dh beta on the installer

Stupid question but is the dh beta off limits now?
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begin.csh not working on Iris 1.8.0-beta.6+1.21.2-fabric

begin.csh is not working for me on both 1.21.2 and 1.21.3. It works fine on 1.21.1 with iris-fabric-1.8.0-beta.4+mc1.21.1.

cannot create gl context 1.21.3 1.8b6

``` [04:21:56] [Render thread/INFO]: [Indigo] Different rendering plugin detected; not applying Indigo. [04:21:57] [Render thread/INFO]: Backend library: LWJGL version 3.3.3-snapshot [04:21:57] [Render thread/INFO]: OpenGL debug context activated. [04:21:57] [ForkJoinPool.commonPool-worker-1/WARN]: [Iris Update Check] This version doesn't have an update index, skipping....
Solution:
found the reason finally, enableDebugOption=true in the config file will cause it

How do I change where the border fog ends on Photon shader with distant horizons?

it appears the border fog is ending past the LODs (also the fog is working without the shader)
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Tea shaders dont load on 1.21

Hey, whenever I try to load tea shaders, I get told they failed to load and to report it to the shader developer Sadly, Ive no clue where I can contact them, so I thought that I might as well ask here first if somebody knows a fix The copy and paste error it gives me is the following:...

Missing shaders tab

Im trying to get shaders on forge 1.20.1. When i use sodium + iris there is the changed gui, but there isnt any ,,shader tab,, where i can turn on the shaders. I tried using rubidium and oculus + iris but it gives me this error or error 1 and keeps crashing. Same happens with optifine (error code 1). Got any idea how i can use shaders on forge in 1.20.1?
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