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I transfered my 1.20.4 modpack to 1.21.4 and now, when i enter the nether, the shaders don't load and i get the message that Iris was unable to properly load the shaderpack. I have Amplified Nether, which for some strange reason doesn't work either and Not Enough Animations doesn't work either lul. My shaderpack is "Super Duper Vanilla" with a custom configuration, if someone can help me with this i would appreciate it a lot, thanks....

Noise on Bliss

When I run DH and Bliss together, Im always getting noise on the sky which is kinda bothering me. Im using the In-dev version of bliss and im also using an AMD card(RX6700XT) How can I fix this?...
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Issues with my own mod

The entity reflections seem to just duplicate the model, Is their any way to avoid this or just disable the entity shadows for Iris? Thanks in advance, Happens on:...
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Inner planes optimization issue

When looking at Bumblezone's Glistering Honey Crystal block, it lags severely. It jumps from ~50% GPU usage to 100% real fast. I made an issue on Bumblezone's GH detailing it slightly better: https://github.com/TelepathicGrunt/Bumblezone/issues/476 Should I open an issue on Iris' GH?...

Resource reload failed

Hi, I'm a player on a minecraft roleplay server and we've been using Iris for a long time. For some time now, several of our players have had a problem. When they connect to the server, the texture pack doesn't load and the following message appears (see screen), some of them even find themselves sent straight back to the minecraft selection menu. The Devs and I think it's a problem because our texture pack contains CITs that can create this bug. That's it, I can provide a list of my mods, logs and such if needed....
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Snow biome DH+bliss shaders bug

is there any fix to this? it only happens to snow biome trees
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getBuffer() allocates 1MB?

Is it just my misunderstanding? I'm referring to this: https://github.com/IrisShaders/Iris/blob/multiloader-new/common/src/main/java/net/irisshaders/batchedentityrendering/impl/SegmentedBufferBuilder.java#L36 Is there a workaround for this for mods with special entities / lots of particles that use getBuffer() frequently? Here's two spark logs - vanilla getBuffer() takes basically no time, so it is kind of unexpected that this method gets such a huge overhead....

Item not displayed

When I dig out blocks like sugarcane and water lilies, they are transparent. I'm not sure if it's caused by other mods, but after I disabled iris, it displayed normally
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Shader Bug

i got an error in my shaders its ``` basic: basic: ERROR: 0:1: '' : version '460' is not supported ERROR: 0:2: '' : #version required and missing....
Solution:
Fixed by changing version to 150

Game crashes when i put iris as a mod

I use indium and sodium but as soon as i use iris my game just pops up for a split second and then crashes
Solution:
Issue was caused by outdated Iris and/or ImmediatelyFast

Can't download Iris

Hey i have tried to download Iris and it is doing this thing, and idk what to do and i tried to look up what to but nothing worked.
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Iris reordering draw calls for GeckoLib4 render layers [1.21.1]

Iris seems to be reorganizing draw calls for GeckoLib4 render layers. I'm drawing using a GeoEntityRenderer that is sensitive to the order in which the draw calls occur, and when Iris is installed the order gets messed up. Notably this doesn't happen with Sodium installed but not Iris. I have some RenderDoc captures, one with the issue occuring (with Iris installed) and one without the issue occuring (with just Sodium installed). Code snippet with the intended order (glow, claws, armor, item) but in the screenshot with the issue, the armor ends up rendering before the glow layer, causing the glow layer to overlay on top of the armor....

Lag whenever I open any form of GUI when i have shaders enabled

It runs fine when Im playing normally. But when I open my inventory or chest, I drop to like 5 fps. Interestingly, the F3 menu doesn't reflect that frame drop.

WHEN forge, an very old question

I see iris as an amazing tool for shaders, but, come on, forge would be dope, and 1.20.1? Epic

Sun shines through DH LOD's with shaders.

What could be the root cause of this? Using Bliss shader. I'm assuming this is happening due to light rays not taking into account LOD's that are facing away from you, for optimization; normally blocks or textures of geometry are not rendered when you cant see them. So this is causing the light to be calculated through the LOD's / Block faces that are invisible/without textures. and the sun shafts just go straight through. So is this something that shader devs can fix?
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Cant load my shaders

Mixin transformation of net.irisshaders.iris.pipeline.programs.SodiumShader failed Here is the report log...

Connected textures missing shaders

Connected textures don't have the shaders applied. Im using LBPR Reload, all shaders i've tried have this...
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Minecraft - 1.21.4 - Reference maps are unable to be read

Hello, I'm working on making a small modpack for myself and trying to have as few warning / errors as possible, are these warnings something to be concerned with?
Solution:
as far as I know those warnings are not important and don't indicate a major problem. Warnings can usually be ignored unless you experience issues

GLFW error 65543

Getting this error with only iris and sodium. Just sodium works fine iris 1.8.5, sodium 0.6.6 - 1.21.4 AMD 7900xtx driver:10.0.1.38 It all worked fine yesterday tho... ...
Solution:
Resolved: Had to turn off the no error context in the Sodium config file. Then it works with debug options on AMD...

Crashing when joining servers

I installed iris but everytime i join a singleplayer world or server it crashes my game, with the only way to not crash is by removing iris from my mods folder, is there any way to fix this?