Mini map : Match 2D images to the 3D world

In this post, Lets's talk about how to match 2D images to the 3D world with Unreal Engine 4. A lot of things are needed to create a AAA game style mini-map. Here are a few typical requirements: - Priority for indoor and outdoor support. - Indoor mini map should working with various house shape. - The top direction of the 2D image may not be the north direction. - Easy to setup. If you have a wide world and a lot of mini-maps, the easiness of installation is most important.In such cases, you should be able to install and verify immediately in the UE4 editor. You must use C++ class this time to make it working in the editor. This is because the 'PostEditChangeProperty' function is required and editor's viewport action does not run 'Blueprint' at all. Step 1. It takes a long time to describe each item, so I'll show you the final result immediately. This is the result video. Step 2. This is the code of MiniMapActor. ...