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Ent's Armor Trim Expanded: Wiki

Make your own animated armor trim materials with nothing but a resource pack and a data pack, no coding required.

Once the mod is installed, any pack can add an animated trim that shimmers, pulses, or cross-fades on worn armor.

• Creating an Animated Trim: the full step-by-step tutorial (data pack plus resource pack), using Raw Copper as the example.
• Animation Format: the trim_animations file: frames, frametime, interpolate.
• Making Palettes: how the colours and frames work.
• Troubleshooting: fixes for the common errors.

Covers 1.21.1, 26.2, and 26.3. A few files differ between versions (palette folder, the material field, the atlas, pack formats). Each step in Creating an Animated Trim shows the variant for your version, and there is a quick-reference table at the bottom of that page.

Example pack

Everything in this wiki is demonstrated by a ready-to-clone example that adds the Raw Copper animated trim: https://github.com/TheFlyingEnt/EntArmorTrimExpanded-Example

git clone TheFlyingEnt/EntArmorTrimExpanded-Example

This contains a complete data pack and resource pack for raw_copper you can copy from or drop straight into your world.

How it works, in one picture

Piece	Pack	Folder	What it is
Material definition	Data pack	data/	Registers the trim material (palette_id)
Provider mapping	Data pack	data/	Maps the ingredient item to the material
Ingredient tag	Data pack	data/	Lets you apply it in a smithing table
Colours (palettes)	Resource pack	assets/	The actual trim colours, one image per frame
Animation	Resource pack	assets/	Which frames play, how fast, and whether to interpolate

The trim colours are always a resource pack (client-side); the material itself is a data pack (server-side). You need both. See Creating an Animated Trim for the walkthrough.

An animated material only animates while Ent's Armor Trim Expanded is installed. Without the mod, the material still exists but renders as a normal static trim.