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Duplicated information across AssetBundlesīy default, Unity doesn’t optimize duplicated information across AssetBundles. In the next section, we’ll discuss how you can use the AssetBundleManifest objects we touched on in the previous section to determine, and load, dependencies at runtime. It does not matter which order you load Bundle 1 and Bundle 2, the important takeaway is that Bundle 2 is loaded before loading the Material from Bundle 1. In this example, before loading the Material from Bundle 1, you would need to load Bundle 2 into memory.
Unity will not attempt to automatically load dependencies.Ĭonsider the following example, a Material in Bundle 1 references a Texture in Bundle 2: Should an AssetBundle contain a dependency, it is important that the bundles that contain those dependencies are loaded before the object you’re attempting to instantiate is loaded. If multiple objects in multiple bundles contain a reference to the same object that isn’t assigned to a bundle, every bundle that would have a dependency on that object will make its own copy of the object and package it into the built AssetBundle. In this case, a copy of the object that the bundle would be dependent on is copied into the bundle when you build the AssetBundles. A dependency See in Glossary does not occur if the UnityEngine.Object contains a reference to a UnityEngine.Object that is not contained in any AssetBundle. AssetBundles can become dependent on other AssetBundles if one or more of the UnityEngine.Objects contains a reference to a UnityEngine.Object located in another bundle.