Block Models

{
    "format_version": "1.26.40",
    "minecraft:block": {
        "description": {
            "identifier": "wiki:paper_bag",
            "menu_category": {
                "category": "items"
            }
        },
        "components": {
            "minecraft:collision_box": false,
            "minecraft:selection_box": {
                "origin": [-7, 0, -4],
                "size": [14, 13, 8]
            },
            // Prevent blocks such as fences and glass panes from connecting
            "minecraft:connection_rule": {
                "accepts_connections_from": "none"
            },
            // Apply your model by referencing its identifier
            "minecraft:geometry": "geometry.paper_bag",
            // Apply textures and other rendering configuration
            "minecraft:material_instances": {
                "*": {
                    "texture": "wiki:paper_bag",
                    "render_method": "alpha_test" // Disable backface culling and allow transparency
                },
                "down": {
                    "texture": "wiki:paper_bag_bottom_fold",
                    "render_method": "alpha_test" // Must be the same in all instances
                },
                // Custom instance name used in model
                "side_gusset": {
                    "texture": "wiki:paper_bag_side_gusset",
                    "render_method": "alpha_test" // Must be the same in all instances
                }
            }
        }
    }
}