CS 551 / 645: Introductory Computer Graphics David Luebke cs551@cs.virginia.edu http://www.cs.virginia.edu/~cs551 David Luebke 7/27/2016 Administrivia Assignment 1 due today Second UNIX section: – Tuesday (tomorrow) at 4:30 – This room (MEC 214) Assignment 2 postponed till Wednesday David Luebke 7/27/2016 A Bit On Color Today’s topic: a quick introduction to color Elements of color: – Illumination: physics Colored light in terms of wavelengths, spectra – Reflectance: physics How does light bounce off a surface? How does this change its color? – Perception: physiology, psychology David Luebke How does the (very complex) human visual system react to colored light? 7/27/2016 The really basic physics of color What exactly is colored light? What is the visible spectrum? David Luebke 7/27/2016 Color Perception Go to overhead… – http://www.cs.virginia.edu/~cs551/lecture5.pdf David Luebke 7/27/2016