Posted April 18, 2015
Now technically vanilla Dosbox has composite CGA support but it's only for a certain mode of Composite CGA I believe mode 4 which means quite a few games will still look fugly despite being designed for composite monitors such as Ultima's 2 and 3, Jungle Hunt, Donkey Kong, Tapper, Bruce Lee, Dino's Eggs and Below the Root to name a few, since they uses other modes like mode 6 i believe. But while tweaking the cycles on the conf file for SVN Daum trying to set up the Roland MT support so I can play Wing Commander as it was meant to be heard, I noticed some additonal CGA settings curious I ended up heading over to VOGONs and sure enough found that someone made a patch for wider composite CGA support.
It's not perfect even after setting the conf file to Machine=CGA you may have to hit the f12 key to force composite emulation especially with Ultima 2 and 3 and I don't know for sure but some of the artifacting/smudging looks a bit off but again I don't have a old computer with a CGA card and composite video monitor to check. But it's a small hassle to play many early dos games the way they were intended.
Here is some examples
Ultima 2 Title Screen Composite:
http://i56.photobucket.com/albums/g169/Evilmonkey6669/cha1.png
Town Composite:
http://i56.photobucket.com/albums/g169/Evilmonkey6669/cga3.png
World screen composite:
http://i56.photobucket.com/albums/g169/Evilmonkey6669/cga2.png
and here is a comparison of Below the Root "normal" CGA and Composite CGA:
http://i56.photobucket.com/albums/g169/Evilmonkey6669/root.jpg
It's not perfect even after setting the conf file to Machine=CGA you may have to hit the f12 key to force composite emulation especially with Ultima 2 and 3 and I don't know for sure but some of the artifacting/smudging looks a bit off but again I don't have a old computer with a CGA card and composite video monitor to check. But it's a small hassle to play many early dos games the way they were intended.
Here is some examples
Ultima 2 Title Screen Composite:
http://i56.photobucket.com/albums/g169/Evilmonkey6669/cha1.png
Town Composite:
http://i56.photobucket.com/albums/g169/Evilmonkey6669/cga3.png
World screen composite:
http://i56.photobucket.com/albums/g169/Evilmonkey6669/cga2.png
and here is a comparison of Below the Root "normal" CGA and Composite CGA:
http://i56.photobucket.com/albums/g169/Evilmonkey6669/root.jpg