Screen coordinates

[Carring]

@eugeneloza

Mouse.Translation := Vector3(Window.MousePosition.X / UiScale - Background.BoundingBox.Size.X/2 , Window.MousePosition.Y / UiScale - Background.BoundingBox.Size.Y/2, 1);

I am not using Castle Editor and TUistate (yet), the game screen was just for trying things out.

So how can I access UiScale within a TCastleUserInterface derivative?