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How come the colors don “shift and undulate”in high/true color display modes?

color colors display high modes
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How come the colors don “shift and undulate”in high/true color display modes?

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While the screen savers should still work in high/true color modes, you will only get the palette animation effects in 256 color video modes.In order to get some of the effects that they use, the screen savers use a palletized video mode. This means that colors are referenced by index rather than by RGB value. By using a palletized video mode, the screen savers can change the RGB value that corresponds to a particular palette index and the result is that all of the colors on the screen that use that index are immediately updated. Neither high or true color modes use a palette, so it is not possible to achieve the effects without manually updating the entire display. Since updating the entire display is far too slow, I didn’t code the screen savers to do it. If you have Microsoft s DirectX extensions installed then you can use the “Display” panel inside the Psychedelic Screen Saver configuration dialog to set the video mode that the screen saver will run in. The screen saver can only pr

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