How to use Custom Model Data in Minecraft Java 1.21.4 [Tutorial]

A tutorial on how to use custom model data in the Minecraft 1.21.4 update.

Custom model data is kinda pointless in 1.21.4 to be honest, you can just set the item model directly on the item using components, so you should probably do that instead ¯\_(ツ)_/¯

Chapters:
0:00 Introduction
0:22 Creating a new pack
2:09 Creating item definitions
5:56 Validating JSON
6:48 Creating a model file to add a new texture
9:48 Testing in game
11:34 Creating a model file to add a new model
15:33 Outro

--------------------------------

Join the Discord:

Support me on Ko-Fi:

--------------------------------

All Downloads Here:

--------------------------------

Find me on socials:

[scottjackson]

I hate how it changes so much but I'm happy the updates allow for more data pack creation ideas thank you this helped :)

[TheRedstone]

Creators: Thanks Mojang!
Mojang: You're welcome.
Creators: And how do I use them to customize?
Mojang: Oh, you want to know that too? Sorry, I have to go.

[misterk_-]

Wow a super clean breakdown. Item models, textures and functionality are all so exciting nowadays. Appreciate your contributions to Minecraft resource pack + data pack + map + utility making as always bro.

[NasheedPog]

If anyone want to do custom_model_data with numbers instead of strings, you need to use this format:

{
"model": {
"type": "range_dispatch",
"property": "custom_model_data",
"fallback": {
"type": "model",
"model": "item/mace"
},
"entries": [
{"threshold": 1, "model": {"type": "model", "model": "item/bat1"}},
{"threshold": 2, "model": {"type": "model", "model": "item/bat2"}}
]
}
}

[EwanHowell]

Custom model data is kinda pointless in 1.21.4 to be honest, you can just set the item model directly on the item using components, so you should probably do that instead ¯\_(ツ)_/¯

[rayanbzdi]

Hello ! could you provide a simple example on how to use numbers instead of text for Custom Model Data please ?

[miniblockmaker]

For those who would like multiple custom models variants for one item.json when named differently, in this case coloured apple variants.

{
"model": {
"type": "select",
"property": "custom_model_data",
"fallback": {
"type": "model",
"model": "item/apple"
},
"cases": [
{
"when": "green_apple",
"model": {
"type": "model",
"model": "item/green_apple"
}
},
{
"when": "pink_apple",
"model": {
"type": "model",
"model": "item/pink_apple"
}
},
{
"when": "yellow_apple",
"model": {
"type": "model",
"model": "item/yellow_apple"
}
}
]
}
}

[VillagerBudz]

I just updated my world to 1.21.5. I tested my 3d pack in my 1.21.4 test and it went perfectly fine! I loaded into my 1.21.5 world to get to work on some cool new decorations in my item frames and the 3d model works just fine, but for some reason my original item is having the null texture. I have used raw chicken and I can't figure out why it is busted but the 3d one is perfectly fine. I am very new to these resourcepack creations and would love some help!

[horadashistoriasasmr]

how to do custom model data to blockstates/block?

[TheKampfmaschine]

Is it possible to use custom model data for elytra? Or do entities not work with cmd?

[joaocomtil_]

When I first saw it I thought Minecraft had added CIT
If they make a "custom_name" property, that would be basically CIT wouldn't it?

[Natdave]

Hello, not sure what I have done wrong but it has just replaced the normal items

[lachainedebenny]

If I want to create several models for a single item, I add when?

[Rhodizites]

Edit: it crashes whenever i search for the stone pickaxe in the creative inv
Why does my game keep crashing? Code:
{
"model": {
"type": "select",
"property": "custom_model_data",
"fallback": {
"type": "model",
"model": "item/stone_pickaxe"
},
"cases": [
{
"when": "coal",
"model": {
"type": "model",
"model": "item/coal"
}
}
]
}
}
(1.21.5 Version of Minecraft)

[gevabenayoun]

i did custom model data for a command block and works good with the custom model but the default command block is showing the purple and black missing texture icon

[hadryan]

Heyy thanks a lot but one question, is this possible to do with items which have more than one texture? For example, the crossbow

[Solstatecz]

Can you please make tutorial for custom model data numeric values?

[jafdell]

Love the video. But why cant I "/item replace entity @s armor.legs with How can I use custom models for whole armor set?

[Marvnz]

Can you do this on custom roleplay datapack?

[KingTacos]

my item turned into a very large purple and black box (broken texture) and idk why