Now, the base of our world has been created; let's add some effects to make the game even more visually appealing and so it will start to fit in with the survival horror feel that we're going to be giving the game.

The first part of creating the atmosphere is to add something for the sky aside from the light blue color that we currently use by default. To fix this, we will be using a skybox. A skybox is a method to create backgrounds to make the area seem bigger than it really is, by putting an image in the areas that are currently being filled with the light blue color, not moving in the same way that the sky doesn't move to us because it's so far away.

The reason why we call a skybox a skybox is because it is made up of six textures that will be the inside of the box (one for each side of a cube). Game engines such as Unreal have skydomes, which are the same thing; but they are done with a hemisphere instead of a cube. We will perform the following steps to build...