Step 7 of 8: Materials
Just remember that the material that a surface refers to will be the material that comes after the surface.
| Surface 1 | Surface 2 | Surface 3 | Surface 4 | |
|---|---|---|---|---|
| DCX | BK-7 | air | BK-7 | — |
| PCX | BK-7 | air | BK-7 | — |
Now, we just need to gather all this information together.