Re: IIgs RGB to YPbPr Component experiment

["Bryan Parkoff" <nospam@nospam.com>]

"BLuRry" <brendan.robert@gmail.com> wrote in message 
1151086494.171887.296790@i40g2000cwc.googlegroups.com">news:1151086494.171887.296790@i40g2000cwc.googlegroups.com...
> Good stuff.
>
> I ran across this today while looking for something else -- Apple //e
> rbg card to cga
>
> http://home.online.no/~kr-lund/A2E-CGA.htm
>

    This website is Knut's what Knut and I were working together to 
construct video data from RGB to CGA monitor through RGB to CGA adapter.  We 
are going to design VGA card from RGB near the future.  I have not had time 
to draw schematic for Apple //e's RGB & 80 Col card like I promised Knut. 
Knut will do the same.  It would be helpful for someone to participle who 
they are interested so we can draw schematic together.  It gives us idea 
what to do with RGB to VGA.
    I can tell that Apple IIgs' RGB will not work with CGA monitor.  If it 
does, it can only work LGR, HGR, and DHGR, but it will not work with super 
resolution because it is done with video clock and is limited to standard 
CGA 16 colors.  It is not worth effort to do your experiment if it does not 
work.
    Soon, I will provide screenshots what I have used to convert NTSC pixel 
from Apple IIgs' RGB to VGA.  You will see LGR, HGR, and DHGR.  It is much 
nice looking than what we see at the emulators' video.

Bryan Parkoff