SAH TTF Sign Fix

SAH TTF Sign Fix is a small client-side Fabric mod that fixes TTF font rendering on signs when using Iris shaders.

When a resource pack replaces Minecraft's default font with a TTF font, sign text may disappear or render incorrectly with shaders enabled. This mod restores the rendering behaviour required for grayscale TTF glyphs.

Compatibility

• Minecraft 26.2–26.3
• Fabric
• Iris 1.11.2+
• Java 25
• Client-side only
• Fabric API is not required

The same mod JAR works with both Minecraft 26.2 and 26.3.

Tested shaderpacks

Tested successfully with:

• Complementary Unbound
• BSL Shaders

The fix operates in the Iris text rendering path and is not specific to either shaderpack.

Resource packs

This mod does not include or install any fonts.

It is intended for resource packs that use Minecraft's TTF font provider. The font itself must be supplied by the resource pack and used according to its own licence.

Technical details

Minecraft uses a single-channel grayscale texture atlas for TTF glyphs.

In Minecraft 26.2, SAH TTF Sign Fix restores the grayscale polygon-offset text pipeline required by normal sign text.

Minecraft 26.3 introduced additional rendering backend changes, so the mod also restores the intensity texture swizzle required for grayscale glyph data to render correctly through Iris.

The mod does not modify the font itself or convert TTF fonts to bitmap fonts.

Source code

Source code: https://github.com/Simon-SAH/sah-ttf-sign-fix

The project is licensed under the MIT License.