Add existing to tracked

2026-08-11 09:53:42 -04:00
parent afe07f3055
commit ffd6e3d73c
8531 changed files with 4396230 additions and 0 deletions
@@ -0,0 +1,22 @@
+import addToArray from "./addToArray.js";
+import defined from "../../Core/defined.js";
+
+/**
+ * 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.
+ *
+ * @private
+ */
+function addExtensionsUsed(gltf, extension) {
+  let extensionsUsed = gltf.extensionsUsed;
+  if (!defined(extensionsUsed)) {
+    extensionsUsed = [];
+    gltf.extensionsUsed = extensionsUsed;
+  }
+  addToArray(extensionsUsed, extension, true);
+}
+
+export default addExtensionsUsed;