High End Systems DLHD High Definition Digital Light, Руководство пользователя

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CHAPTER 13
Effect Mode Options Descriptions
190 DLHD Digital Light User Manual
Scene Change
Effect Mode parameter DMX value = 100
This effect creates transparency in video content based on the change in pixel color from one
frame to the next. Modifiers 1 and 2 use the color difference between the current frame and the
previous frame to derive an alpha value for the output frame. Modifier 3 scales the color of the
current frame to provide the color of the output frame.
Modifier 1: Scales RGB values of the previous frame; from 0 = maximum to 255 = minimum
scaling.
Modifier 2: Derives an alpha value from color difference between current frame and the result of
modifier 1. DMX 0 to 127 act to make darker colors transparent, with DMX 0 resulting in
maximum transparency. DMX values 128 to 255 act to make bright colors transparent, with DMX
255 = maximum transparency.
Modifier 3: Scales the RGB values of the current frame to provide the output RGB values. DMX 0
provides the brightest output RGB values. DMX 255 = the darkest output RGB values.
Object Effect Global Effect
Object 1 Original Content
Modifier parameter 1 DMX value = 0
Modifier parameter 2 DMX value = 255
Modifier parameter 3 DMX value = 185
Object 2 Original Content