Basically, I made a 2D texture that I want to display in the inventory. I want the item to (when placed) display as a block in the world. I've tried just redirecting the model path to the texture path but that results in the texture being mapped onto a three sided block with transparency. I've also tried adding a new path in the BlockItem of the block but that just killed the texture and resulted in the black/purple box. How do I display a block as a texture and not as a 3D block in the inventory?

Don't use BlockItem. Look at vanilla's items that work this way.

6 minutes ago, Draco18s said:

Don't use BlockItem. Look at vanilla's items that work this way.

I'm very new to this whole process, could you help figure out how to do this?

Go find the vanilla Items class, its in the net.minecraft.item package (remember Items, with an s, not Item).

In the giant list of items, find any vanilla item that behaves the way you want. Cake, redstone dust, etc.

Find out what class it uses.

Can this not just be done with the model / blockstate jsons?

Hi

 

Just use an item model json for your blockitem

eg src/main/resources/assets/minecraftbyexample/models/item/mbe04b_block_altimeter_registry_name.json

{
  "parent": "item/generated",
  "textures": {
    "layer0": "minecraftbyexample:item/mbe04b_altimeter_item_icon"
  }
}

 

where

    itemBlockAltimeter = new BlockItem(blockAltimeter, itemProperties);
    itemBlockAltimeter.setRegistryName(blockAltimeter.getRegistryName());
    itemRegisterEvent.getRegistry().register(itemBlockAltimeter);

 

-TGG