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Computer Graphics Lecture 1 July 11, 2005

Learn about the field of computer graphics, how computers generate images, and the various techniques used to create stunning 2D and 3D visuals. Explore topics such as rendering, compositing, shapes, textures, and more.

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Computer Graphics Lecture 1 July 11, 2005

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  1. Computer Graphics Lecture 1 July 11, 2005

  2. Computer Graphics What do you think of? The term “computer graphics” is a blanket term used to refer to the field of computer science specializing in computer generated images.

  3. What is an image? An image is a 2-dimensional array of pixels (dots of color). If the resolution (density of the dots) is high enough, the pixels blend together seamlessly to form the image the eye sees.

  4. On a computer monitor, a pixel is represented by the additive combination of the 3 primary colors: red, green, and blue in varying brightness. 155/255 Red 112/255 Green 46/255 Blue pixel in an image pixel on a screen

  5. Computer Generated Images (CGI) How do computers generate images? Data Rendering or Drawing Program Image(s)

  6. Two Dimensional (2D) Images

  7. Two Dimensional (2D) Images • Composited Images / Icons • Shapes (Circles, Squares, Lines, Curves) • Text (various Fonts) • Gradients and other Fills

  8. Three Dimensional (3D) Images

  9. Three Dimensional (3D) Images • Polygons • Textures / Shaders • 2D Overlays • Particle Systems

  10. Q & A How did they do that?

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