entityBacked
Configures the hitbox type of this entity-based block model.
Entity-backed custom block models are less performant than state-backed models, but a lot more flexible:
They can display transparent- and oversized (larger than 3x3x3) models.
There is no limit to the amount of different models.
Every vanilla block type can be used as a hitbox (a block inside the display entity). This allows for very customizable colliders.
The item display entities can be accessed and updated at runtime.
Note that only tile-entity blocks can use entity-backed models.