I believe you can manipulate the colour bleed between pixels on the composite output from a high resolution mode to achieve high-colour output. (They actually have a 1024-colour mode in part of the demo.)
There are probably a bunch of weird limitations on the adjacent colours you can achieve, but it’s an impressive effect regardless!
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I believe you can manipulate the colour bleed between pixels on the composite output from a high resolution mode to achieve high-colour output. (They actually have a 1024-colour mode in part of the demo.)
There are probably a bunch of weird limitations on the adjacent colours you can achieve, but it’s an impressive effect regardless!
(Here’s the obligatory wikipedia page: https://en.wikipedia.org/wiki/Composite_artifact_colors It sounds like the demo developers have taken this effect & turned it up to 11.)
I remember that "extra colours" could be archived on a ZX Spectrum using the bleed of the RF or composite output.