What is CustomModelData and how does it work?
How one vanilla item can become a katana, mug, chainsaw, or any other model without mods.
Read articleMinecraft Resource Pack Wiki and Tool Guides
Minecraft resource pack guides, CustomModelData explainers, and walkthroughs for the generator, skin editor, texture painter, potions, villager trade tools, and component-era item systems.
General Articles
Resource pack structure
A quick reference for textures, models, blockstates, and common file names.
Unique RP items with string IDs
Why a giant list of numbered CustomModelData values breaks down, and how a readable string ID in custom_data fixes it without giving up the model hook.
Read articleHow to name custom items without duplicates
A category + family + variant pattern for internal IDs, visible names, and visual hooks that survives a server growing past a handful of items.
Read articleMinecraft Resource Pack Generator
How to Use the Minecraft Resource Pack Generator
A step-by-step guide: choose a version, add items, blocks and armor, upload textures, preview the result, and download the ZIP.
Read guideOther Tools
Skin editor
How the classic 64x64 layout works, what the overlay layer is for, and why painting directly on the model helps with sleeves, hats, and boots.
Read articleTexture painter
How texture size changes detail, workload, and readability, and how to move exported PNGs into the resource-pack generator.
Read articleHow the Sulfur Cube's texture works
What we found inside the real Minecraft 26.x client jar: two texture layers, no editable model, and how to paint a replacement skin.
Read articleCustom potions
How to build a potion with potion contents, custom effects, bottle color, lore, CustomModelData, and a give command for the right Minecraft version.
Read articleCustom villager trades
How Offers, Recipes, prices, rewards, limits, CustomModelData, and summon commands work.
Read articleAdvanced RP and migration guides
RP economy with custom_data
How to stop forged notes, passes, and tokens from slipping into your villager economy.
Read articleSmart potion contents in 1.21.4
How to use the potion_contents component for custom colors, effects, and readable RP potions.
Read articleData packs vs commands
Why loot tables and recipes cannot be made with a command, and the 1.21 folder rename that silently stops packs from doing anything.
Read articleHow loot tables roll
Pools, rolls and number providers, and why weight of 10 is not a 10% chance — the reason most "broken" tables are actually just mispriced.
Read articleWhy a recipe does not show up
Pattern padding, item tags as ingredients, and the two JSON format changes that make a copied example fail for no visible reason.
Read articleAdvancements as a quest system
Why the trigger that never fires is the backbone of custom quests, and the reward that finally puts a recipe in the recipe book.
Read articleHow to use the enchantment & attribute randomizer
Basic vs advanced randomization, and /give vs a loot table entry with the ranges baked in as number providers.
Read articleWhich enchantments can't combine, and why
Every vanilla incompatibility group, treasure-only enchantments, and why level caps are a command-side choice, not a wall.
Read articleMigrating packs to 1.21.4
A practical checklist for moving old NBT-heavy pack workflows into the modern component format.
Read articleData Components architecture
A deep explanation of how Mojang split visible text, hidden state, and model identity into explicit components.
Read articleRP Server Plugins
Mechanism Plugin
A machine-body RP system with Gear Heart transformation, oxidation upkeep, copper metabolism, jetpacks, lasers, storm charge, and admin tuning.
Read articleHeadHunter Plugin
A progression system built around Hunter's Fang upgrades and dozens of creature powers, with deliberate restrictions and death-loss balancing.
Read articlePath Reference
| Type | Pack path | Example name |
|---|---|---|
| Item | assets/minecraft/textures/item | diamond_sword.png |
| Block | assets/minecraft/textures/block | oak_planks.png |
| Item model | assets/minecraft/models/item | custom_diamond_sword_1.json |
| Blockstate | assets/minecraft/blockstates | crafting_table.json |