Broken rendering with Iris when shaders are enabled

[Nik-mmzd]

Describe the bug Atlas rendering bug (see screenshots)

To Reproduce Compile for 1.18.1 from 37038a399ecac1d58bcc7164ef3d309e8636a2cb Install Sodium and Iris Enable shaders (e. g. BSL)

Expected behavior

Screenshots

Fabric version information:

• Minecraft: 1.18.1
• Fabric Loader: 0.12.12
• Fabric API: 0.44.0+1.18
• AntiqueAtlas: built from commit 37038a399ecac1d58bcc7164ef3d309e8636a2cb

Additional context When Iris is installed, but no shaders are enabled, all renders normally Sodium: 0.4.0-alpha5 (latest) Iris: 1.1.3 (latest)

[tyra314]

Does this also happen with the release version?

[pikasalt]

Yes, I can confirm that this happens using the latest 1.18.2 release versions of iris, sodium, and antique atlas

[tyra314]

According to #448 it also happens on forge

[ShiroYatagami]

Still a problem on iris 1.4.3, sodium 0.4.1 build 15 & indium 1.0.7 when using shaders but not when disabling shaders.

[tyra314]

Fixed in 99330bdf842502cbeac3e5b7d8ec18233cd7a970 thanks to @LangYueMc

[tyra314]

Turns out, those patches don't resolve the issue properly.

[Orgamorsh]

I made a resource pack that kinda band-aid fixes this. The issue is with pixels with mixed transparency values overwriting other ones. This resource pack makes every pixel have 255 opacity. I think it works pretty well. I tested it with oculus on complementary.

Antique Atlas Shader Patch.zip