What happened?

This is my first bug report, so I apologize if I don't provide everything correctly. I recently encountered an issue with Iris and have been struggling to diagnose and figure out what the problem is. I looked around and it seems no one else is having this issue, so I'm putting in the report to see if anyone here has had it. I've had a problem where if I use any relatively intensive shader (AstraLex, Complimentary Reimagined, BSL), there are constant and extreme artifacts. At first, these appeared to be an issue with shadows stretching or glitching, but some of these artifacts almost appear to be vertices or geometry glitching. If I don't use shaders, I don't have this issue, and adjusting the framerate to 20 fps causes these artifacts to go away, but if I set it to my refresh rate, then they return. The only mods I'm using currently are Iris and Sodium, nothing else.

Some custom settings I'm using for my client are:

• GUI Scale set to 2
• Everything else set to default

I also want to note that I'm using a dual monitor setup with one monitor at a 60hz refresh rate and my main at 144hz. I don't know if this means anything, but the info is there just in case.

What I expect to happen:

• Start the game
• Create a new world
• Turn on shaders
• No artifacts

Steps to reproduce:

• Start the game
• Create a new world
• Turn on shaders
• Look into distance areas (mountains, hills, entities standing in the distance, etc.)

Screenshots

This is a little harder to see, but the artifact is shown over at the mountains in the little "pocket" generated.

Log output

latest.log

Minecraft Version

Minecraft 1.20.1

Iris Version

iris-mc1.20.1-1.6.10.jar

Operating System

Windows 11

What is your GPU?

XFX Speedster MERC 319 AMD Radeon™ RX 6800 XT

Additional context

No response

I also forgot to mention that I tested Optifine to see if shaders in general were just buggy and found that Optifine had no artifacts rendering with any of the shaders I listed. Sorry about that.

I've done more testing and consulted with an AMD developer over the GPU artifacts not only occurring with Minecraft (Iris with shaders enabled and disabled) but also with Forza and Fortnite. After extensive testing, the AMD developer and I confirmed that my graphics card suffered a hardware malfunction, specifically affecting the VRAM. So this issue is not the fault of Iris, but more so my GPU being faulty. So, I will close this issue and start my RMA process to, hopefully, fix these problems. Many apologies if anyone was investing a ton of time into figuring this out.