cesium
Version:
CesiumJS is a JavaScript library for creating 3D globes and 2D maps in a web browser without a plugin.
26 lines (24 loc) • 783 B
JavaScript
define([
'../../Core/defined'
], function(
defined) {
'use strict';
/**
* Adds an extension to gltf.extensionsUsed if it does not already exist.
* Initializes extensionsUsed if it is not defined.
*
* @param {Object} gltf A javascript object containing a glTF asset.
* @param {String} extension The extension to add.
*/
function addExtensionsUsed(gltf, extension) {
var extensionsUsed = gltf.extensionsUsed;
if (!defined(extensionsUsed)) {
extensionsUsed = [];
gltf.extensionsUsed = extensionsUsed;
}
if (extensionsUsed.indexOf(extension) < 0) {
extensionsUsed.push(extension);
}
}
return addExtensionsUsed;
});