Basic Rendering Techniques, ContinuedLightLight, shade, and shadow make drawings more realistic. But shading, nomatter how well done, will not improve poorly constructed forms. Light,shade, and shadow are affected by two types of light: artificial and natural(outdoor) light. You can control artificial light, but not natural light. Theedges of light and dark areas follow the contour of surfaces or planes ofobjects. If light emanates from more than one source, make sure thehighlights and shadows are consistent for each object in the drawing.ToneTone is the natural color of an object as compared to its surroundings. Toneseparates objects from items around it. If you draw an object using only itslocal tone, the drawing would appear flat and without form. Consider howlight or dark the color of an object is in relation to the colors of thingsnearby. Evaluate the tone of an object based on one of these four tonepatterns: light against dark, dark against light, halftone and dark againstlight, and light and dark against halftone. Separate tones of objects into tonalvalues.Figure 3-25 shows a cube in local tone.Figure 3-25.—A cube in local tone.Continued on next page3-21
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