The architecture of light: architectural lighting design concepts and techniques. A textbook of procedures and practices for the architect, interior designer and lighting designer pdfdrive com

“DRAW YOUR LIGHT.”
Far too often, people see light as a product of luminaires, and they, therefore, design by staring at a space plan and placing symbols that represent luminaires. This process inevitably yields repetitious, static solutions of habit. The little circles and square symbols do little to explain to us or anyone else how light is behaving in the space. In our design process we should vow never to design by drawing lighting symbols straight away.
The first step in expressing light ideas is to graphically represent light as light. We draw this light how we envision it, and where we envision it. We identify the surfaces and objects that we want bright, and we draw brightness onto them. Remember: lighting design is nothing more than the successful application of the most appropriate type of light onto the most appropriate surface. If we can make a habit of expressing our ideas through drawing light, we can head down a more thoughtful and program responsive path of designing that will yield more inspired and innovative designs.
Drawing light onto surfaces, object and spaces requires only the simplest
of tools. A yellow colored pencil can represent “light” in its most generic form. With this single colored pencil, we can sketch light onto architectural elevations, sections, plans and perspectives. We can print out images and sketch onto them. We can sketch light onto our own hand-drawn scribbles. I make a habit of carrying around a small army of yellow, colored pencils so that as soon as a lighting idea comes to mind, I can communicate it immediately without a lot of big words and hand waving. When one draws light onto plans and sketches the eyes of fellow designers, clients and peers light up with comprehension and understanding. I know of no easier tool for communicating light ideas, and so this will be our first. I call this process of expressing light through graphics “Light Mapping”
Figure 17.2 A light map detail example of a contemporary residence.