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The Focal Easy Guide to Combustion 4 by Gary M Davis

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24p  This is the term commonly used to describe a frame rate used in films. This means 24 frames per second in progressive (p) mode.

3:2 Pull Down  This is a process that changes frame rates. Typically, one converts the common film rate of 24 frames per second to and from 25 or 30 frames per second of PAL or NTSC video, respectively. This process can also add or remove video fields to images.

Alpha Channel  An alpha channel is a grayscale image that represents values of transparency. This information is often embedded in the file along with the red, green and blue color information channels. In combustion, pure black is transparent (0% opacity) ...

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