•User controls contents, structure, and appearance of objects and their displayed images via rapid visual feedback
•Basic components of an interactive graphics system
–input (e.g., mouse, tablet and stylus, force feedback device, scanner, live video streams…)
–processing (and storage)
–display/output (e.g., screen, paper-based printer, video recorder, non-linear editor…)
•First truly interactive graphics system, Sketchpad, pioneered at MIT by Ivan Sutherland for his 1963 Ph.D. thesis
Sketchpad in 1963.
Note the use of a CRT monitor, light pen and function-key panel.
What is Interactive Computer Graphics? (1/3)