more than 16 colours in Nemesis2 ?

Page 2/3
1 | | 3

By animator75

Resident (38)

animator75's picture

10-07-2008, 12:31

Yes but again these extra colors are there due to the way the video is encoded, and not visble on a "perfect" video signal. As also stated in the Parsec info..

By animator75

Resident (38)

animator75's picture

10-07-2008, 12:34

of course both pal and ntsc suffers from the horisontal artefacts, the artefacts has to do with "video bleeding" and it is mostly horisontal because of the direction of the electron beam that draws the image.

By hap

Paragon (2040)

hap's picture

10-07-2008, 12:39

As for your HB-75, jltursan, I assume that had a Toshiba VDP model (a not 100% accurate clone of the TMS one).

By jltursan

Prophet (2619)

jltursan's picture

10-07-2008, 13:05

meisei supports NTSC simulation btw, and some games use/abuse it

Cool!, those filters are great emulating the artifacts! :-).

My Sony, indeed, it must built the infamous T6950 Evil

About the Nemesis review, maybe Mars2000 is referring to how fine the colors are arranged that even they managed to fool the eyes showing more shades, again "video bleeding" of course...

By animator75

Resident (38)

animator75's picture

10-07-2008, 13:09

That might be it. but he calls it "programming tricks" so I thought he meant that Wink

By pitpan

Prophet (3152)

pitpan's picture

10-07-2008, 14:06

The aforementioned VDP trick to "create" new colours is enabling the superimpose facility of the TMS chip (external video source selection bit). As long as it is not really implemented in the computer, it will produce strange behaviours, including different colours. But I guess that:

(a) It behaves differently on different computers
(b) The result depends on the implemented TMS-alike chip
(c) Only for MSX1

Result: it cannot be used for anything but to say "hey, my MSX has a brand new palette of sick-hued colours" LOL!

The only "programming trick" that NEMESIS 2 uses regarding colours is much more simple than all the things discussed in this topic: for certain game elements it switches the colour for every frame, creating a "blended colour" in its most simple fashion. Not as complex as in MSX Unleashed, but more or less the same principle: frame 2N - color X; frame 2N+1 - color Y. If you are using an old-school TV you'll probably see a "new" colour, equivalent to the RGB average of both X and Y. On a TV with short latency, you'll see a simple flickering, but maybe your retina will do the rest Wink

Foot note: on the SVI-738 you can do lots of different things because it features a V9938 VDP. Therefore, you can set the palette that you want. Of course, if you combine this with screensplits you can display a good number of colours on screen, even using MSX1 techniques.

By hap

Paragon (2040)

hap's picture

10-07-2008, 14:13

The only "programming trick" that NEMESIS 2 uses regarding colours is much more simple than all the things discussed in this topic: for certain game elements it switches the colour for every frame, creating a "blended colour" in its most simple fashion.Now that you mention it, I remember it being used on some sprites. Smile I don't think that's what mars2000 meant though, it's not used often in Nemesis 2.

By jltursan

Prophet (2619)

jltursan's picture

10-07-2008, 14:20

Result: it cannot be used for anything but to say "hey, my MSX has a brand new palette of sick-hued colours"

hehe, true, it's like a MSX on acid Smile

for certain game elements it switches the colour for every frame, creating a "blended colour" in its most simple fashion

Can't remember that....definitely, I need to try again THE game right now. Btw, you're talking about real "frame blended" colors, not simply flashing or blinking ones?

By MäSäXi

Paragon (1884)

MäSäXi's picture

10-07-2008, 14:33

And my dying Hit Bit gave even more colours, without doing anything, result was amiga like!

Hey, that rings a bell!. IIRC my HB-75 also did something weird when VDPing something in register 0 or 1, I don't remember at all, I just keep the impression of seeing strange color shadows (but not solid ones) on screen and indeed a lot of grey.

But my Hit Bit gave those colours WITHOUT any programming... Smile That VDP command was just for Toshiba HX-10. Smile

And besides, my Toshiba did also more than just changed colour palette, when I put cursor to certain locations at screen, TEXT on that same row got neatly warped, there is no vocabulary to tell what it looked like, it was really cool looking strange effect, but I will try now.... Smile it was a bit like italic text, but text warped to BOTH sides, to left and right, not just to right like italic, and cursor position changed the way how badly text was warped, let´s suppose cursor is at middle of the row, text in the most left and right hand side of that row was most warped and text nearest to cursor was less warped, I guess you can understand now what kind of effect I am trying to tell. Smile

Also, years ago I tried that VDP trick with CANON V-20, and it gave totally different vision.... everything went black&white and WHOLE screen got badly warped....

By MäSäXi

Paragon (1884)

MäSäXi's picture

10-07-2008, 14:38

by the way, how I can upload a picture from my computer?

I drew a simple picture to show you how that warped Canon V-20 screen looked like.

Page 2/3
1 | | 3