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On 08/04/07, Steven C. Barr(x) wrote: > ----- Original Message ----- > From: "Don Cox" <[log in to unmask]> >> It is true that if you get the angle of view right, and shut one eye, >> a flat perspective image can look surprisingly real. >> > Like the effect of echoes on our location of sound sources...our > brains use a number of qualities of the images we see to establish > what we think of as "3-D!" This is why computer video images can be > branded as "3D"...in spite of the fact they are viewed as single > images on a single screen. This is also why we draw using > "perspective" and also use shadows as well as the relative position > (what is "in front" of what and thus blocks part of the image of the > second item). > > Keep in mind that all of those ideas were first presented by painters > (Dutch, IIRC) in the 16th century...and paintings all of a sudden > looked very much more "realistic!" One-point perspective was invented in Florence in the early 15th C. The Van Eycks added accurate rendering of textures, shadows, etc. The "Arnolfini Marriage" is cutting-edge image technology for 1434. http://tinyurl.com/creey Regards -- Don Cox [log in to unmask]