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an itty bitty error message, please help

dh_terrain.vsh: dh_terrain.vsh: 0(150) : error C1503: undefined variable "dhRenderDistance"

Version 1.21.7 it doesn't appear on installation.

Version 1.21.7 doesn't appear during installation. Do you have any idea why it no longer shows up in the Iris Shaders installation menu?
Solution:
1.21.8 should be used not 1.21.7
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No shader working

i have instal Iris in 1.8.12 on my 1.21.1 modpack but when i want to on a modpack, all do the same error message, so i thinj that can provide of that, if someone as the same prolem please help me

Blocks flicker in McPhoenix shaders.

It's been a while since I tried the McPhoenix shader, but the water and blocks were flickering. If I remember correctly, it was working on my previous Iris, so I will report it here. I tried with Iris 1.9.1. I encountered the same problem with 1.8.8....
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Rendering custom RenderTarget with shaders

Hello everyone, I'm one of the developers of SecurityCraft, and I have a question regarding shaders and Iris. In our mod, we have a feature where players can view another part of the world as a camera feed in a "Frame" block. The camera feed is a RenderTarget that is first used to capture the remote world view, and then rendered in the Frame's BE renderer. The code responsible for this (buried in some other code, sorry about that!) can be found here (starting at around line 113), we also use a custom core shader for this, found here. During testing with Iris and both the BSL and Complementary shaders, we've noticed that while using the shader, the frame feed does not show up. This either means that the world capturing doesn't work, which I doubt because Iris shouldn't really mess with that, or that the rendering of the RenderTarget into the world doesn't work....
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Game Crash

I have tried using Iris for the past 2 days and I am unable to find the problem with it. I always get this weird error even when I try to put it with no other mod but just sodium
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Beacon beam colors

Anyone seen this before? When building several beacons in a row - the first/last one ends up brighter than the rest. Happens to both untinted and tinted beams.
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RenderLayer rendering out of order.

When I have Iris installed the overlay renders above the armor trim, it is supposed to render below the armor trim. (Left image is what its supposed to be)
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Need help

Unexpected error while creating framebuffer: Draw buffers [0] Status: 36055
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It said to contact the devlopers?

it said to copy the error. so here it is "Shader program linking failed, see log for details"...
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f3 shows shaderpack is "off" or disabled

when i look at f3 , it shows shaderpack is "off" but when i press k it becomes "disabled" and video settings look default either way
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1.21.1 shaders arent loading

dh_terrain.vsh: dh_terrain.vsh: 0(138) : error C1503: undefined variable "dhProjection" 0(139) : error C1503: undefined variable "dhProjectionInverse" a text popped up telling me to copy and paste it here (am pretty sure)...

DH isnt rendering far chunks for some reason

Hello 1st of all sorry If my english is bad but Ill try to write it good so your eyes and brain wont bleed 2nd (the problem) I have (I think) quite good PC: RTX 3070 / Ryzen 9 5900X (12Core) / 64GB Ram Storage 3200MT/s...

Minecraft crashing on turning off/on shaders

Whenever i try to turn off/on my shaders minecraft crashes, im trying to figure out where this issue is coming from, its probably not directly Iris but I have no idea how to continue about this https://mclo.gs/m7Nlz58 Theres tons of error, GPT told me its a memory issue, but i have allocated 14gigs from my 32 which atleast to me seems it should left enough for the shader switch? Thanks for any help...

Error loading a text files onto shaders

when putting in a text file to any of my shaders, it just gives me an error and disables the shader. here is the error: composite11.fsh: composite11.fsh: 0(155) : error C1503: undefined variable "Tonemap_Xonk"...

using labPBR texture packs with shader cause AMD drivers to time out and GPU ports to stop working.

it was working fine prior to me updating windows around early to mid June. I had swapped out my Arc A770 for a RX7600, because using any shaders with the intel card caused my PC to reboot. But prior to before I updated windows the AMD card had no issues using shaders or LabPBR. I don't really have a crash report cus the game itself doesn't crash, my GPU drivers do....

Iris crashes whenever a Lead is used

im on minecraft 1.20.1 with Iris 1.6.17 and sodium 0.5.8 and whenever a wandering trader spawns, my game instantly crashes. same issue with mod Toni's Immersive Lanterns - always instantly crashes the second the lantern gets attached. ive tried removing iris to see if it works without it and it does, same with the leads. also it doesnt matter whether any shaderpack is active or not, it crashes anyway.
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Need help setting up iris for my game. Shader support not working

I have both Iris and sodium in my modpack. For some reason its not even giving me a button to use shaders. Modpack was created with Modrinth.
Solution:
The instance needs to be running neoforge not vanilla
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Can't uninstall Iris

When I don't play in the Iris profile, but in a Fabric one, Iris keeps running but without the shaders. This always happen when I use just Sodium with Fabric or even with NeoForge. I tried deleting the profile from the Minecraft, and even deleting manually all the iris files I found on the .minecraft folder. I also uninstalled and installed Minecraft and it keeps happening. I just want to play Sodium without Iris. Any ideas?
Solution:
That's Sodium's work.