(
    schema_version: 1,
    label: "Concrete",
    shader: None,
    shader_ref: None,
    render_state: (
        alpha_mode: Opaque,
        alpha_cutoff: 0.5,
        double_sided: false,
    ),
    material: (
        shader: (
            kind: StandardLit,
            schema_path: None,
            shader_path: None,
        ),
        base_color: (
            r: 0.55,
            g: 0.54,
            b: 0.52,
            a: 1.0,
        ),
        metallic: 0.0,
        roughness: 0.85,
        emissive_color: (
            r: 1.0,
            g: 1.0,
            b: 1.0,
            a: 1.0,
        ),
        emissive_intensity: 0.0,
        base_color_texture: None,
        emissive_texture: None,
        normal_map_texture: None,
        metallic_roughness_texture: None,
        material_asset_path: None,
        parameters: [],
        textures: [],
    ),
)