There is a difference in both color and value between the shaded side and the diffused highlight the shaded side contains the complimentary color to the diffused highlight (an orange object will have a blue shaded side) and is darker than the object is in life. The shaded side receives no light from the source light. The shaded side finishes the lighting ratio and completes the trio of values that make rounded objects look round. While texture may be visible in other values on the object, the natural texture is evident in the diffused highlight value. This light shows you the correct skin tone and pore structure. The diffused highlight is the correct value for the object. There is no difference in color between the specular highlight and the diffused highlight, only a difference in value. The diffused highlight contains the correct color and truthful texture of the object. A dull object, like cotton fabric, is be represented by specular highlights that are just a bit lighter in value than the next tonal value and it’s hard to tell exactly where one ends and the other begins. A shiny surface is represented by specular highlights that are very white in comparison to the neighboring values and have sharp, well-defined edges … like metal or catch lights in the eyes. It tells you what direction the light is coming in from and how shiny or dull the surface of the object is. The specular highlight is the lightest value on an object. When more than one light source is used, more than one set of the 5 lights is produced so it’s important to identify and understand what you are seeing when using light for photography, retouching and painting. Shaping the light perfectly is the basis of professional portrait retouching. Portrait artists use light to create specific professional lighting patterns that accentuate the bone structure of individuals in the most flattering way. The Five Lights of Nature always occur in the same relationship to each other. Each of the 5 lights has characteristics that when combined, provide the viewer with information about shape, size, surface, color and texture. The Five Lights of Nature are values that artists and photographers use to create the illusion of depth and drama in two-dimensional output. The Five Lights of Nature / by Jane Conner-ziser
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