25 lines
777 B
JavaScript
25 lines
777 B
JavaScript
import addExtensionsUsed from "./addExtensionsUsed.js";
|
|
import addToArray from "./addToArray.js";
|
|
import defined from "../../Core/defined.js";
|
|
|
|
/**
|
|
* Adds an extension to gltf.extensionsRequired if it does not already exist.
|
|
* Initializes extensionsRequired if it is not defined.
|
|
*
|
|
* @param {object} gltf A javascript object containing a glTF asset.
|
|
* @param {string} extension The extension to add.
|
|
*
|
|
* @private
|
|
*/
|
|
function addExtensionsRequired(gltf, extension) {
|
|
let extensionsRequired = gltf.extensionsRequired;
|
|
if (!defined(extensionsRequired)) {
|
|
extensionsRequired = [];
|
|
gltf.extensionsRequired = extensionsRequired;
|
|
}
|
|
addToArray(extensionsRequired, extension, true);
|
|
addExtensionsUsed(gltf, extension);
|
|
}
|
|
|
|
export default addExtensionsRequired;
|