cesiumDemo/Source/Scene/BlendOption.js

import freezeObject from '../Core/freezeObject.js';

    /**
     * Determines how opaque and translucent parts of billboards, points, and labels are blended with the scene.
     *
     * @exports BlendOption
     */
    var BlendOption = {
        /**
         * The billboards, points, or labels in the collection are completely opaque.
         * @type {Number}
         * @constant
         */
        OPAQUE : 0,

        /**
         * The billboards, points, or labels in the collection are completely translucent.
         * @type {Number}
         * @constant
         */
        TRANSLUCENT : 1,

        /**
         * The billboards, points, or labels in the collection are both opaque and translucent.
         * @type {Number}
         * @constant
         */
        OPAQUE_AND_TRANSLUCENT : 2
    };
export default freezeObject(BlendOption);