August 2012
Beginner
356 pages
9h 21m
English
Content preview from Beginning WebGL for HTML5
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APPENDIX B
Graphics Refresher
It is assumed throughout this book that the reader has a basic understanding of 3D graphics but we will refresh memories of some relevant topics in this appendix.
Pixels
When we digitally represent an image on a computer screen, it is composed of a rectangular grid of individual points of color known as pixels. This type of a representation is known as a raster graphic or bitmap. How true to the original image the displayed image appears depends on the number of pixels on the screen: the resolution. In Figure B-1, we show an input image on the left, a 4 × 4 pixel grid representation in the center and a 16 × 16 grid ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.