The Geometry of Brightness and the Perception of Form
In the sensory world the perception of three-dimensional form depends upon the interplay of light and shadow. An angle forms precise visual patterns in ambient light, and these combined with their projected shapes can account for their reading as 90 degrees, 45 degrees, and so forth.
KeywordsDegree Angle Interior Space Brightness Gradient Projected Shape Yellow Ochre
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- 52.Carlo Pedretti in his Commentary to Jean Paul Richter’s The Literary Works of Leonardo da Vinci, 1977.Google Scholar
- 53.Albers made the distinction between what appears to be a local, retinal phenomenon, and an effect which takes place further in the visual system, which he termed, “perceptual. “ He much preferred this term to “optical,” adopted by the proponents of “Op” Art of the sixties, who attribute their work to his influence. “Perceptual” includes the influence of visual experience beyond the visual stimulus. In this instance, I think that the resolution of the effect lies in the propensity of the eye and brain to make ratios of the stimulus of light and to reduce the Svariables of hue.Google Scholar