Add existing to tracked

node_modules/@cesium/engine/Source/Scene/FrustumCommands.js

@@ -0,0 +1,29 @@
+import Pass from "../Renderer/Pass.js";
+
+/**
+ * Defines a list of commands whose geometry are bound by near and far distances from the camera.
+ * @alias FrustumCommands
+ * @constructor
+ *
+ * @param {number} [near=0.0] The lower bound or closest distance from the camera.
+ * @param {number} [far=0.0] The upper bound or farthest distance from the camera.
+ *
+ * @private
+ */
+function FrustumCommands(near, far) {
+  this.near = near ?? 0.0;
+  this.far = far ?? 0.0;
+
+  const numPasses = Pass.NUMBER_OF_PASSES;
+  const commands = new Array(numPasses);
+  const indices = new Array(numPasses);
+
+  for (let i = 0; i < numPasses; ++i) {
+    commands[i] = [];
+    indices[i] = 0;
+  }
+
+  this.commands = commands;
+  this.indices = indices;
+}
+export default FrustumCommands;