Talk:PALETTES.DAT

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Revision as of 09:07, 12 June 2007 by NKF (talk | contribs) (Some random thoughts)
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Just for a bit of general information, it might be worth mentioning that some of the palette entries are used for colour cycling. For example the radar pings on the intercept console. That's achieved by shifting a whole block of palette entries to give the effect of movement. (Think KITT's chasing lights) The image doesn't change, but the colour that you see does. It results in a wave movement. If anyone remembers the shifting colours on ye olde Windows startup screens, this was achieved in the same way.

Other palette swaps include the greyscale background bitmaps that are used in the Geoscape screens. They keep the same palette entry, and the game only needs to shift these entries to different shades to change the shades of the backgrounds.

Come to think of it, anyone know what conditions change the normal backgrounds from red to purple? It seems to vary.

Also another random technical tidbit, the game uses mode 13h for its display. In other words 320x200x256clr VGA mode. It used to come standard on all SVGA cards as a safe mode to revert to. The first fifteen colours after the transparency were probably left behind for use by the console. They appear to match the old text mode 16 colour palette.

- NKF