English Amiga Board - View Single Post - Is it true the Amiga nearly DIDN'T use RGB for colour?

Gorf · 13 June 2018, 18:55

Composite YUV was probably the most used way for a A1000.
But the signal was generated by the Vidiot from the RGB signals (a more sophisticated colour-version of the later A500 b/w signal)

So it would have made sense to stay in the YUV realm during the whole signal chain.
So instead of 12bit RGB values you could simply use 12bit YUV in the registers - bitplanes and blitter-operations would stay the same.

A "reverse-vidiot" could than generate a RGB signal from the YUV values....

13 June 2018, 18:55	#5
Gorf Registered User Join Date: May 2017 Location: Munich/Bavaria Posts: 2,424	Composite YUV was probably the most used way for a A1000. But the signal was generated by the Vidiot from the RGB signals (a more sophisticated colour-version of the later A500 b/w signal) So it would have made sense to stay in the YUV realm during the whole signal chain. So instead of 12bit RGB values you could simply use 12bit YUV in the registers - bitplanes and blitter-operations would stay the same. A "reverse-vidiot" could than generate a RGB signal from the YUV values....