I want to know if possibly I could change it from Custom Name to Item Model, and if I could: How?

[timber helm]

{
"model": {
"type": "minecraft:select",
"property": "minecraft:component",
"component": "minecraft:custom_name",
"cases": [
{
"when": "redstone_sheath",
"model": {
"type": "minecraft:condition",
"on_false": { "type": "minecraft:model", "model": "minecraft:item/redstone_sheath" },
"on_true": { "type": "minecraft:model", "model": "minecraft:item/redstone_sheath_blocking" },
"property": "minecraft:using_item"
}
}
],
"fallback": {
"type": "minecraft:condition",
"on_false": {
"type": "minecraft:special",
"base": "minecraft:item/shield",
"model": { "type": "minecraft:shield" }
},
"on_true": {
"type": "minecraft:special",
"base": "minecraft:item/shield_blocking",
"model": { "type": "minecraft:shield" }
},
"property": "minecraft:using_item"
}
}
}

[idle gorge]

What

[timber helm]

I'm still trying to figure out the shield lol sorry

I was trying to figure out if I could change it from Custom Name to Item Model, and if I could: How?

[timber helm]

I couldn't find the vanilla shield item definition, but was able to find the Custom Name which changes models stuff

in other words; Can someone teach me how to do Custom Shields? for 1.21.5

[idle gorge]

You're getting super lost, that's not a thing

The vanilla shield item definition is in assets/minecraft/item/shield.json

You don't need to do anything to change it to item_model and certainly not from custom name. You just need to take that vanilla item definition, put it in your resource pack under your own namespace, change the name as you see fit, change the models it references, and then set that item definition as the one referenced by your item's item_model component in-game

[timber helm]

is this it?

{
"parent": "builtin/entity",
"display": {
"thirdperson_righthand": {
"rotation": [ 0, 90, 0 ],
"translation": [ 10, 6, -4 ],
"scale": [ 1, 1, 1 ]
},
"thirdperson_lefthand": {
"rotation": [ 0, 90, 0 ],
"translation": [ 10, 6, 12 ],
"scale": [ 1, 1, 1 ]
},
"firstperson_righthand": {
"rotation": [ 0, 180, 5 ],
"translation": [ -10, 2, -10 ],
"scale": [ 1.25, 1.25, 1.25 ]
},
"firstperson_lefthand": {
"rotation": [ 0, 180, 5 ],
"translation": [ 10, 0, -10 ],
"scale": [ 1.25, 1.25, 1.25 ]
},
"gui": {
"rotation": [ 15, -25, -5 ],
"translation": [ 2, 3, 0 ],
"scale": [ 0.65, 0.65, 0.65 ]
},
"fixed": {
"rotation": [ 0, 180, 0 ],
"translation": [ -2, 4, -5],
"scale":[ 0.5, 0.5, 0.5]
},
"ground": {
"rotation": [ 0, 0, 0 ],
"translation": [ 4, 4, 2],
"scale":[ 0.25, 0.25, 0.25]
}
},
"overrides": [
{
"predicate": {
"blocking": 1
},
"model": "item/shield_blocking"
}
]
}