In this tutorial, you'll learn how to make a drinking glass with ice cubes, and a materials for them. The glass is made to look like glass with the use of refraction .
Refraction is the bending of light as it passes through an object.
The most visible refractors in life are glass and water. You'll start out by making the table and wall, which are an important part of the scene. In order to look refractive, the glass has to refract something in the scene. In this case, the wall and table will be refracted when seen through the glass. Set up a scene with a table and a wall beyond it.