Light Intensity

Light intensity is graphically represented by different colors or different values of one color. Its quality varies on all surfaces and sometimes even on the same surface, depending upon the position and angle of the viewer. The spot with maximum reflection usually appears to be lighter and brighter A long, continuous surface can exhibit a variety of intensities, due to interference from other objects and the texture of the surface from which the light is reflected. Three-dimensional forms should be obvious from the ways in which light and shadow fall upon them. Shadow should be used to direct eye movement. The path of light and shadow should be carried from border to border. Use strong basic shapes to define the shadow pattern. Don't attempt to capture a realistic pattern—this is the job of a camera. A sketch is not a photograph!

dark tree canopy and shrubs in the foreground create a perfect setting for viewers to look into

bold and dark honzontal lines in the foreground tend to lead the eye movement, creating contrasting patterns with the vertical texture on the wall

strong contrast of foliage suggests the roundness of the tree canopy

Expression of Light Effect

contrast in tone emphasizes the connection between the house and the roof

renders details and the reflection of light

shadow of tree promotes diagonal eye movement across the page and leads viewers to the theme (house)

brings out the sculptural effect of the product

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Freehand Sketching An Introduction

Freehand Sketching An Introduction

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