MSX 2 resolution

بواسطة diedel

Resident (48)

صورة diedel

15-11-2008, 01:22

Maybe it's a noobish question... sorry.

I've noticed in the emulators that some MSX 2 games have a "vertical scanlines" effect? Due to the screen 7 mode?
If the PC vertical resolution is less than 480, for instance 640x400 this "effect" dissapears but the image gets blurried.

??

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بواسطة Manuel

Ascended (19273)

صورة Manuel

15-11-2008, 11:34

Not only MSX2 games. If your emulator uses a vertical resolution of 480 (and not 240), you have spare lines. Some emulators use those to create a scanline effect, it's a darker version of the combination of the surrounding scanlines.

بواسطة AuroraMSX

Paragon (1902)

صورة AuroraMSX

15-11-2008, 13:25

In openMSX, open up the console (F10) and type

set scanline 0

Voila, scanlines be gone.

بواسطة Manuel

Ascended (19273)

صورة Manuel

15-11-2008, 15:11

Actually, diedel, what is the question?

بواسطة diedel

Resident (48)

صورة diedel

16-11-2008, 16:46

Hi manuel Smile

I think I've not explained it correctly.
I mean vertical scanlines not standard scanlines, see this taken image from blueMSX (in openMSX looks the same):

fotos.miarroba.com/fotos/e/b/ebb4f230.jpg

This is only noticeable at the blue area, not in the red area neither the text.

The question is why this happens?

بواسطة AuroraMSX

Paragon (1902)

صورة AuroraMSX

16-11-2008, 17:53

The question is why this happens?Eh, it's part of the game. That blue area actually is an area of alternating black and blue vertical lines Cool I just checked it on a real MSX

بواسطة mohai

Paladin (999)

صورة mohai

02-12-2008, 18:04

Notice that SMX SCREEN 7 has only 16 colours. Colour mix is a nice effect to "simulate" a wider pallete