Graphic conversion for any 256x192 into MSX1 graphics (Source code in Blitz Basic).

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Por LeandroCorreia

Paladin (944)

Imagen del LeandroCorreia

06-04-2019, 22:08

Another dithering method, using alternating horizontal lines. It would be better for CRT TVs, since those lines would merge in single colors. There's still margin from improvement in the line method, but it'll be VERY slow.

Por Manuel

Ascended (15815)

Imagen del Manuel

06-04-2019, 22:16

I like the right side much more, to be honest.... Also, I'm not sure the lines would actually merge on a good CRT.

Por LeandroCorreia

Paladin (944)

Imagen del LeandroCorreia

06-04-2019, 23:37

Manuel wrote:

I like the right side much more, to be honest.... Also, I'm not sure the lines would actually merge on a good CRT.

I prefer the right side as well. But in an OLD CRT TV (not a monitor), I recall that horizontal lines looked like a single color.
Anyway, the line method could use a better (and slower) algorithm, since it in many cases uses a single color in an octet where two could be used.

Por LeandroCorreia

Paladin (944)

Imagen del LeandroCorreia

07-04-2019, 00:41

Fixed version (about half an hour to run) on the right. Dithering is not as good as the 2x2 dithering version, but curves are much better (no blocks). It's obviously seen in some parts of the image, such as the back jaw curve.

Por Grauw

Ascended (8508)

Imagen del Grauw

07-04-2019, 01:50

Wonder if somehow the line method could be combined with dithering? Within a line there can be multiple colours after all, perhaps this could achieve some further fidelity.

All these pictures look really nice btw Smile. And although the dithering looks good, I also like the line aesthetic, like used in the Dioniso games.

Por LeandroCorreia

Paladin (944)

Imagen del LeandroCorreia

07-04-2019, 02:00

Grauw wrote:

Wonder if somehow the line method could be combined with dithering? Within a line there can be multiple colours after all, perhaps this could achieve some further fidelity.

All these pictures look really nice btw Smile. And although the dithering looks good, I also like the line aesthetic, like used in the Dioniso games.

I did some tests in the past and quickly discarded them. I don't think line good be used with dithering (one would mess with the other in terms of optical illusion). Personally I prefer the dithering method, but as I told, it's hard to compare since the line method would be better for very old equipments that I don't have anymore. Wink

Por LeandroCorreia

Paladin (944)

Imagen del LeandroCorreia

12-04-2019, 20:46

Last version of algorithm:

https://pastebin.com/1nThpe7j

Por alexito

Hero (555)

Imagen del alexito

12-04-2019, 21:23

something wrong happen with the last version Blitz Basic never output the .bmp and .scr screen.

Por LeandroCorreia

Paladin (944)

Imagen del LeandroCorreia

12-04-2019, 21:47

Weird. Just copied from pastebin and pasted into Blitz and it worked. Silly question: did you specify a valid path for output image and scr?

Por alexito

Hero (555)

Imagen del alexito

12-04-2019, 22:18

@LeandroCorreia: yes is my favorite place (G:\B\) where the old source works just fine.

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