Enabling compatibility

Step 1

Install ItemsAdderBlocksInjector and don't remove it after installation!

Step 2

Create your Iris world (follow their guides) and use your ItemsAdder custom blocks IDs as you would do with vanilla blocks.

For example open this file of the overworld pack: plugins\Iris\packs\overworld\biomes\mountain\mountain.json

Then edit the layers settings to use a custom block, in this example the custom Amethyst Block:

"layers": [
        "minHeight": 1,
        "maxPerChunk": 21,
        "maxHeight": 80,
        "minPerChunk": 7,
        "minSize": 3,
        "maxSize": 7,
        "palette": [{ "block": "iasurvival:cassiterite_ore" }],
        "varience": 7

This will generate a similar result:

Compatibility issues

  • FastAsyncWorldEdit will stop working, there is nothing I can do about that.

  • WorldEdit //undo and //copy won't work with the custom blocks placed by Iris, they would be reverted back to NOTE_BLOCK (or mushroom, TRIPWIRE, CHORUS_PLANT)

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