Asset Manager

Asset Management

The Asset Manager is a unique, global object that exists in the Editor as well as in packaged games, and can be overridden and customized for any proj
Asset and Asset File
Primary and Secondary Assets

The Asset Manager is a unique, global object that exists in the Editor as well as in packaged games, and can be overridden and customized for any proj

Asset and Asset File

阅读Assets and Packages一节，我觉得有2个概念需要区分一下：Asset、Asset File。

UE4里Asset是资产的意思，可以理解为一种逻辑资产、思维资产。而这个资产要落地，就写入文件里形成一个资产文件（.uasset）。

通常，一个asset file里存储一个asset。

Primary and Secondary Assets

Conceptually, the Asset management system in Unreal Engine 4 breaks all Assets into two types: Primary Assets and Secondary Assets.

Primary Assets can be manipulated directly by the Asset Manager via their Primary Asset ID
Secondary Assets are not handled directly by the Asset Manager, but instead are loaded automatically by the Engine in response to being referenced or used by Primary Assets.