What happened?

Transparency Bug with Armored Mobs and Weather Mod in Minecraft Shader

Description:
I'm using a shader alongside my modpack, and I've noticed a bug where mobs equipped with armor appear transparent or translucent if the armor is enchanted. Additionally, elements from the Weather, Storms, and Tornadoes mod also appear transparent.

In an attempt to fix this issue, I tried disabling the "Colored Shadows" option in the shader's config. However, this action disables the shader entirely and an error message appears in the chat:

composite.fsh: composite.fsh: 0(523) : error C1503: undefined variable "shadowcolor0"

This error might be related to the transparency issue mentioned above.

Additional Testing:
Testing in a separate world with only the Weather, Storms, and Tornadoes mod and the shader, I found that the transparency issue persists with elements from the mod. However, the transparency issue with armored mobs seems to be resolved in this isolated environment.

Visual Evidence:

Thank you for your attention.

Minecraft Version

1.20.1

Which shader mod are you using?

Iris

Shader mod version

1.1.0

Shader settings

Default config in any profile

Relevant log output

composite.fsh: composite.fsh: 0(523) : error C1503: undefined variable "shadowcolor0"

ngl this looks cool af

ngl this looks cool af

Yeah, but when it's not enchanted or you're on your own, you basically look invisible hahaha. Also, all transparent particles, like rain or whatever you can think of, look very bad. I love the shader, and it's perfect for my apocalypse modpack and the server I'm creating, but it's a shame that it has this problem.

oh