Lighting Available in Unreal Engine 4

To begin with I will be having a look at the various light types that Unreal Engine 4 offers and I will be explaining what they do, how they can be edited and how I could use them in my own environment.  There are four variations of light in UE4 and they are directional light, point light, spot light and sky light.

I will now go through each of them, explain what they are, how they're used and how I could implement them into a map in UE4.

Point Light
A point light is a light that emits light in all directions in UE4, it works very similar to a light bulb in that it transmits light in all directions, here is a simple scene I created in UE4 with just a floor and a sphere with all light sources removed

Now here is the exact same scene with a point light added into the scene

As you can see the point light has emitted light in all directions shining light on the sphere, on the floor and casts a shadow from the sphere.

You can also adjust the intensity and colour of the light as you can see here.

Spot Light

A spot light emits light it one direction similar to that of an actual spotlight, here you can an example of how the spotlight works in UE4.

Here you can see the spotlight emitting light in one direction and also casts a shadow beneath the sphere.

Again you can also adjust the intensity and the colour of the spot light.

Directional Light

Directional light is the main source of light within the map and basically acts like the sun/moon.  Again you can adjust the intensity and colour of the light however you can also change the angle of the light source.