Loading Screen
All meta keys are strings. Asset paths are relative to the addons .assets directory.
loading_square_logo_padding
The amount of padding given to the loading icon in the corner. If not specified, no padding will be applied.
While this is a string, the value given must be a whole non-negative number.
loading_screen
A path to an asset in the addons .assets folder. This image will be used when the player is loading into a map from the main menu. If not specified, a black screen will be shown.
Recommended Size: 1920x1080 (or aspect ratio equivalent)
This image will be sized to cover the entire screen as the background.
transition_screen
A path to an asset in the addons .assets folder. This image will be used when the player is loading into a map from a previous map. If not specified, a black screen will be shown.
Recommended Size: 1920x1080 (or aspect ratio equivalent)
This image will be sized to cover the entire screen as the background.
Loading/Transition Screen fading
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As with the loading screen used in Portal 2, P2:CE's loading screen is layouted with overlayed images that are fading in/out based on the loading progress. Additionally, P2:CE differentiates between loading into a map from the main menu and transitioning into a map from a previous map.
The loading screen of P2:CE supports two images with a fade happening at 50%. To fade between two images, an index will be added to the asset path.
Example
With this, the loading screen will fade between [ADDON PATH]/.assets/loading_screen_1.png and [ADDON PATH]/.assets/loading_screen_2.png.