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Chapter 2. Animation Basics > Animation Numbers 101

Animation Numbers 101

Web animators are always speaking in numbers. How many frames per second? What's the data rate, and what's the frame size? Is that 24 bits, or has it been dithered to 8, or does it use the 216-color Web palette? I devote several chapters to the technicalities of Web animation formats later in the book, but for now, here are some of the terms that I commonly refer to in the next few chapters. At the very least, you should know the following concepts.

Frames Per Second (fps)

Frames per second (fps) is also called frame rate. Thirty frames per second is standard for video, 24 fps is standard for film, and anywhere from 1 to 30 fps works for Web animation, although 10 fps is about the minimum rate for convincing motion. To have any real stylistic control of timing, you need closer to 20 fps, so plan accordingly when you're considering the size and data rates of your animation.


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