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Palette animation refers to the process of modifying a surface's palette to change how the surface itself looks when displayed. By repeatedly changing the palette, the surface appears to change without actually modifying the contents of the surface. To this end, palette animation gives you a way to modify the appearance of a surface without changing its contents and with very little overhead.
There are two methods for providing straightforward palette animation:
- Modifying palette entries within a single palette
- Switching between multiple palettes
Using the first method, you change individual palette entries that correspond to the colors you want to animate, then reset the entries with a single call to the IDirectDrawPalette::SetEntriesmethod.
The second method requires two or more DirectDrawPalette objects. When using this method, you perform the animation by attaching one palette object after another to the surface object by calling the IDirectDrawSurface5::SetPalettemethod.
Neither method is hardware intensive, so use whichever technique works best for your application.
Last updated on Tuesday, May 18, 2004