Photometric lights can be customized to distribute light using one of the methods below. I have also included the symbols from the 3ds max
Reference for easier identification. In italics are the types of photometric lights that can utilize each method.
This method distributes light equally in all directions. (Point)
Amazingly enough, this method acts suspiciously like a spotlight. Its angles, the beam angle and the field angle, can be compared to a
standard light's hotspot angle and falloff angle, respectively. (Point)
Web distribution uses a 3D representation of the light intensity distribution of a light source read from a file. These profiles of real lights
are often made available by manufacturers. (Point, Linear, Area)
Diffuse emits light from a surface based on its refraction angle. Light that leaves at a right angle is the most intense, and intensity
diminishes as angles become more acute. (Linear, Area)