PTDQ

WHAT IS THIS?

PTDQ (Pixel Tetrads Dots / Quality) is a video system for AGA Amigas that provides a chunky-to-planar method which is faster than the traditional ones.
PTDQ is the higher-quality brother of PTDS, another system based on the same core principle.

EXAMPLE

[The video quality of the real machine output is heavily affected by the fact that the scandoubler did not support SHRES (so a real-time software trick was used to somehow produce the colors, although it is only a visual illusion and causes a sort of rasterline effect), the monitor did not support progressive PAL and the video was captured with an ancient phone at just 24.917 Hz. YouTube's compression degraded the video quality.]