[#SPIGOT-8018] ItemMeta#setItemModel Does Not Update Armor Textures

[SPIGOT-8018] ItemMeta#setItemModel Does Not Update Armor Textures Created: 15/Mar/25 Updated: 15/Mar/25 Resolved: 15/Mar/25
Status:	Resolved
Project:	Spigot
Component/s:	None
Affects Version/s:	None
Fix Version/s:	None

Type:

Bug

Priority:

Minor

Reporter:

Austin Dart

Assignee:

Unassigned

Resolution:

Invalid

Votes:

Labels:

1.21.4, Spigot, bug

Environment:

Java 21; Base spigot-1.21.4.jar from BuildTools

Attachments:

Screenshot 2025-03-15 103715.png

Screenshot 2025-03-15 103744.png

Version:

4457-Spigot-73860e0-f0c8dd3

Guidelines Read:

Yes

Description

When using ItemMeta#setItemModel, it only updates the item's textures and not the armor's textures (if it is armor).

For example:

public ItemStack getBaseItem() {
    ItemStack item = new ItemStack(Material.DIAMOND_HELMET);
    ItemMeta meta = item.getItemMeta();
    assert meta != null;
    meta.setItemModel(new NamespacedKey("oni", "oni_1_mask"));
    meta.setUnbreakable(true);
    item.setItemMeta(meta);
    return item;
}

results in the item being retextured, but not the armor when worn.

However, running this command:

/minecraft:give @s diamond_helmet[item_model="oni:oni_1_helmet",minecraft:equippable={slot:"head"}]

does retexture both the item and the helmet.

I should expect ItemMeta#setItemModel to perform the same thing. I have attached screenshots of both scenarios.

Comments

Comment by md_5 [ 15/Mar/25 ]

Your command vs code are using different models (oni:oni_1_mask vs oni:oni_1_helmet).

The items as shown with /data get entity @p Inventory are as expected:

{count: 1, Slot: 0b, components: {"minecraft:item_model": "oni:oni_1_mask", "minecraft:unbreakable": {}}, id: "minecraft:diamond_helmet"},
{count: 1, Slot: 1b, components: {"minecraft:equippable": {slot: "head"}, "minecraft:item_model": "oni:oni_1_helmet"}, id: "minecraft:diamond_helmet"}

Comment by md_5 [ 15/Mar/25 ]

Can you please include a pack which can be used to test?

Generated at Tue Apr 08 03:01:13 UTC 2025 using Jira 10.3.3#10030003-sha1:d220e3fefc8dfc6d47f522d3b9a20c1455e12b7b.

[SPIGOT-8018] ItemMeta#setItemModel Does Not Update Armor Textures Created: 15/Mar/25 Updated: 15/Mar/25 Resolved: 15/Mar/25