How do I load my last project automatically?
When opening a scene file for your software application, you immediately get access to your content for that scene. However, in Unreal Engine 4, when you open just the Editor from the Epic Games Launcher, you will be taken to the Unreal Project Browser where you can select your project (if it’s already created). To enable this, perform the following action:
In the Project Browser, enable Always load last project on Startup when selecting a project to open.
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Where do I set Input Bindings for my project?
In Unreal Engine 4, you can add various buttons (actions) and analog controls (axes) to get callbacks to your game’s character (Pawn) when input events are triggered. The Input Bindings can be found in the Project Settings under the Input section. Here you will give each control a name and a default binding to a key on your keyboard or a button on a controller. The names of these input bindings can be used in Blueprint to perform actions when pressed and it allows you to set multiple inputs to a single name. For example, if you have a player character that you want to move forward in your level, you could call the Input Binding “Forward” and then bind the “W” key from the keyboard and the “Up” position on a joystick of a controller to this “Forward” event.
For additional information, see the Input page learn more.
How do I change the starting scene of my project?
You can change the startup map of your project from the Project Settings. From the main menu, select Edit > Project Settings and then under Maps & Modes change the Editor Startup Map to the one you’d like in the Content Browser.
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How do I run my game?
The easiest way to run your game is to click the Play button on the main toolbar. It will run the game inside of the Editor’s viewport with all functionality and the currently selected Gamemode. If you want to run it as a standalone application, click the drop-down next to Play and choose Standalone Game. Finally, if you want to run on a mobile device or in a web browser, you will use the Launch button on the toolbar and select from the available platforms. Some platforms require additional set up and can only be used after installing any prerequisites that are needed.
For additional information about the various platforms supported, see the Platform Development page to learn more.
What units are used in Unreal Engine 4?
In your software application you can adjust the primary unit of measure from your preferences or settings. In UE4, the primary unit of measure if one centimeter. For this reason, it is recommend to change your primary units of measure to match those used in Unreal.
What is the coordinate system? Which way is up?
Unreal Engine 4 use a left-handed coordinate system. In Unreal Engine 4, positive X is “Forward”, positive Y is “Right, and positive Z is “Up”.
How do I see the Log Output from my project?
In the Editor, you can open the Output Log by using the file menu to select Window > Developer Tools.