Setting an assets material using an editor script

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Here is a simple script that given a material assetID and your desired slot, it will loop through all of your selected assets and update the mesh instance material.

Indeed a handy thing to do since that batch action isn’t allowed when selecting more than one model assets.

assetModelSetMaterial(15412718, 0);

function assetModelSetMaterial(assetId, slot) {
  const type = editor.call("selector:type");

  if (type !== "asset") {
    return false;
  }

  const items = editor.call("selector:items");

  if (!items || items.length === 0) {
    return false;
  }

  items.forEach((item, index) => {
    item.set("data.mapping." + slot + ".material", assetId);
  });

  console.log("--- Finished execution ---");
}