Fading with limited colors.
category: gfx [glöplog]
my laptop does 50 native tho. lucky being cheap having that "retro rig"? :D
Quote:
Most monitors don't support 50Hz
Is that so? In my experience the line between monitors and TVs has blurred since 1080p became a standard resolution for both.
In my nVidia control panel I see the resolutions sorted to "Ultra HD, HD, SD" and "PC".
If I select the 1920x1080 resolution from the first category, I get 50 Hz, no problem.
The PC resolution gives me 60 Hz.
I also get 576p at 50 Hz even, that's regular PAL (how TV do you want it?).
And 480p at 60 HZ, that's regular NTSC.
And this is just a cheap Samsung 1080p screen of some 4 years old I think.
Afaik most 1080p-capable monitors these days can do both 50 and 60 Hz, in all the usual TV resolutions.
As a summary of screen technology.
All flat panel monitors have 60 Hz refresh or fake 120Hz. Flat panel TVs since the 2009 new standard chip do 50Hz deinterlaced to 25 Hz if they're made for Europe. Any CRT does any Vfreq within their range, up to about 170Hz like my P1130. CRT Vreq is the only real Hz because it uses a directly computer controlled light beam firing photons onto a phosphor layer immediately in real time, and the phosphor layer holds the picture until next frame. Flat panels are subject to the chip manufacturer's whim and will never be real-time but always buffered, and the LCD/LED/whatever element's willingness to change color in time. (Black-to-white timing must be less than the framerate to even get the pixels buffered in the screen out in time. They exaggerate contrast and saturation to compensate.)
Kusma's answers should be enough, but you can also flicker colors every other frame, or use patterns for dithering. Full lines every other line works well for TVs suitable for "limited platforms" and is one of those patterns.
All flat panel monitors have 60 Hz refresh or fake 120Hz. Flat panel TVs since the 2009 new standard chip do 50Hz deinterlaced to 25 Hz if they're made for Europe. Any CRT does any Vfreq within their range, up to about 170Hz like my P1130. CRT Vreq is the only real Hz because it uses a directly computer controlled light beam firing photons onto a phosphor layer immediately in real time, and the phosphor layer holds the picture until next frame. Flat panels are subject to the chip manufacturer's whim and will never be real-time but always buffered, and the LCD/LED/whatever element's willingness to change color in time. (Black-to-white timing must be less than the framerate to even get the pixels buffered in the screen out in time. They exaggerate contrast and saturation to compensate.)
Kusma's answers should be enough, but you can also flicker colors every other frame, or use patterns for dithering. Full lines every other line works well for TVs suitable for "limited platforms" and is one of those patterns.
That whole fading by one channel at a time worked perfect!
