Adding lights to the level

Let's continue to improve our game-level layout. Now we'll add some lighting. And what alien base would be complete without some weird, floating green lights, right? Well, coming right up. Here's what we're going for:

Fig. 13.17 – Floating lights. Note the transparency

To get this effect, we are going to use a sphere with a point light inside it. Just follow these steps:

1. Open your level layout Scene.
2. First, let's create a mostly transparent material with emissive lighting for a glow effect. In your Materials folder, right-click and create a new material named Green Glow MAT.
3. Change Rendering Mode to Transparent, set Metallic to 0, and Smoothness to 0.51. Refer to Fig. 13.18:

   Fig. 13.18 – Settings for the glowing material, the Albedo values, and the Emission values

4. Click the color swatch next to Albedo and set the (A)lpha transparency value at the bottom to 11. Close the popup...