RuMSX can display screen 12 in fullcolor on a PC.
But it is not obvious. You have to change to High resolution when there is a
screen 12 image on screen, otherwise it is grey. And since high resolution
on my PC's gives a black screen in all other modes it is not convenient.
Well, since RuMSX is still a work-in-progress (and a quite impressive one),
it gives hope for the future.
I am still experimenting with the conversion of RGB to YJK. The spillover
in the four pixels sometimes is horrible. The big problem here is that the
wrong colour is displayed with too high intensity. It is already a bit
better if you blur the image before converting but that works in all
directions and gives an overall loss of sharpness.
Now i am concentrating on doing the blur in the four corresponding pixels
(lower intensity if the color is too much wrong for that pixel, compromise
the average color a bit more etc).
-----Original Message-----
From: Giovanni R. Nunes [mailto:[EMAIL PROTECTED]]
Sent: woensdag, januari 26, 1994 16:36 uur
To: [EMAIL PROTECTED]
Subject: Screen Horrorshow graphics
Mk//e,
> I use a 3 slice split screen, the middle being in graphic mode 7 (256
> x 212 x 256 colors). I also use real hardcoded mode 2 overlapped
> sprites (3 different colors per line).
Them I thing correctly... (except by sprites...).
> I'm looking forward to include MSX2+ support for smoother backdrops.
> If I only could write a fast and compact enough YUV DCT decoder + get
> hold of a 2+ (must use an emulator for that, sigh!)...
A emulator? The last emulator that I knew displayed S12 pictures in
greyshade tones... :) The major problem is the "blur" but you can
solve this problem using the mode 8(?) {256x212 12k colors) that
enable a mixed RGB and YJK screen. And about convert YUV (or YJK?) you
can do it in another (a fast and fat) computer. I do it on my draws,
first in PC and last in MSX.
---
Giovanni Nunes
[EMAIL PROTECTED] - [EMAIL PROTECTED]
http://www.geocities.com/ResearchTriangle/2472/
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