The Apply method in the RenderSettings class is used to apply the current rendering settings to the game engine. This method ensures that any changes made to the rendering configuration, such as resolution, fullscreen mode, or anti-aliasing quality, are reflected in the game's display output.

To use the Apply method, first ensure that you have configured the desired rendering settings using the properties available in the RenderSettings class. Once the settings are configured, call the Apply method to apply these settings to the game engine.

Example usage:

RenderSettings settings = new RenderSettings();
settings.ResolutionWidth = 1920;
settings.ResolutionHeight = 1080;
settings.Fullscreen = true;
settings.VSync = true;
settings.Apply();