Setting the scene with a skybox

Our game environment should be dark, creepy, and suspenseful. However, every new Unity scene is created with a default, procedural skybox representing a cheery daytime exterior; this needs to be changed. A skybox is ultimately a cube with a flipped normal that surround and encompass the environment. Its faces contain an environment texture which, when mapped correctly, appears seamlessly across the model, creating the look of a vast skyline surrounding the scene. The primary purpose of our skybox should be to set a base and ambient lighting. The most appropriate skybox for our usage, then, is a night skybox or, at least, a dark, stormy (and perhaps slightly alien) skybox. There are many ways to create a skybox ...

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