Add existing to tracked

node_modules/@cesium/engine/Source/DataSources/createMaterialPropertyDescriptor.js

@@ -0,0 +1,35 @@
+import Color from "../Core/Color.js";
+import DeveloperError from "../Core/DeveloperError.js";
+import Resource from "../Core/Resource.js";
+import ColorMaterialProperty from "./ColorMaterialProperty.js";
+import createPropertyDescriptor from "./createPropertyDescriptor.js";
+import ImageMaterialProperty from "./ImageMaterialProperty.js";
+
+function createMaterialProperty(value) {
+  if (value instanceof Color) {
+    return new ColorMaterialProperty(value);
+  }
+
+  if (
+    typeof value === "string" ||
+    value instanceof Resource ||
+    value instanceof HTMLCanvasElement ||
+    value instanceof HTMLVideoElement
+  ) {
+    const result = new ImageMaterialProperty();
+    result.image = value;
+    return result;
+  }
+
+  //>>includeStart('debug', pragmas.debug);
+  throw new DeveloperError(`Unable to infer material type: ${value}`);
+  //>>includeEnd('debug');
+}
+
+/**
+ * @private
+ */
+function createMaterialPropertyDescriptor(name, configurable) {
+  return createPropertyDescriptor(name, configurable, createMaterialProperty);
+}
+export default createMaterialPropertyDescriptor;