Creating refractive materials: architectural glass

Glass and refractive materials are another super important category for , adopted in facades, balustrades, and, of course, windows and doors. With the introduction of Lumen, creating them has become quite simple, at least for the most basic uses. However, advanced refractive materials such as frosted, tinted, or smoked glass require more sophisticated shaders. Nevertheless, once you become familiar with the concepts presented in this book, you will also possess the knowledge and tools to create and experiment with them.

To create a glass shader with a slight cyan tint for our windows, we will start from scratch. Follow these steps:

1. Create a new material, and name it M_architecturalGlass. Then, open its graph.
2. Select the main material node, and change the blend mode to translucent.
3. Activate the Two Sided option, and uncheck the Cast Ray Traced Shadow option.
4. In the Translucency section, change the lighting mode...