Normals are skewed and flat on Iris

[onkoe]

Describe the bug Using Iris 1.6.14 on Minecraft 1.20.4 and Fabric Loader 1.15.3, there are many artifacting and rendering bugs.

To Reproduce Steps to reproduce the behavior:

1. Unknown. Sorry!
2. Try installing Iris on Fabric, though!

Expected behavior Screenshots that look like those on Modrinth.

Screenshots

System Information

• Minecraft version, resource packs, mods, etc: https://mclo.gs/rcN875N
• Shader version: Release 2.4.6 (latest)
• GPU: AMD Radeon RX 6750 XT on Fedora Linux 39 (kernel 6.6.9). The driver, amdgpu, is from linux-firmware-20231211-1.fc39.src.rpm.

Additional context You can find more information about my hardware specs using this report: https://linux-hardware.org/?probe=29d93a66fe

[onkoe]

note: Also reproducible with a subset of those mods:

  [✔] fabric-api-0.93.1+1.20.4
  [✔] fabric-language-kotlin-1.10.17+kotlin.1.9.22
  [✔] fabricskyboxes-0.7.3+mc1.20.2
  [✔] indium-1.0.28+mc1.20.4
  [✔] iris-mc1.20.4-1.6.14
  [✔] modmenu-9.0.0
  [✔] reeses_sodium_options-1.7.0+mc1.20.2-build.97
  [✔] sodium-extra-0.5.3+mc1.20.2-build.114
  [✔] sodium-fabric-mc1.20.3-0.5.5

[mateuskreuch]

I can't reproduce it. Does it work fine with just Iris?

[onkoe]

No - with Iris and Sodium (bare minimum) enabled, the artifacting still occurs.

Can I provide any other logs/etc. for additional troubleshooting?

[mateuskreuch]

Does it happen in Miniature 1.10? And does disabling waves in the current version help at all?

[onkoe]

The 'artifcating' doesn't occur on the older version - nor when waves are turned off. However, there are still issues with general skewing. For example, in the screenshots below, reflections show parts of the world that they shouldn't see!

2.4.6

1.10

[mateuskreuch]

Can you test this build for me and see if it is any better?

[mateuskreuch]

Closing because of inactivity.