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Reply 100 of 758, by BdR

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Actually, there is no original B/W line version. I converted the treefrog photo to a 160*200*16 colors bitmap, so that is my 'original' file. The B/W line dithered version is then generated by my BMPDITH gwbasic program, using the 16 color .BMP as input.

So, you can generate the B/W line version by running BMPDITH.BAS (see BMPDITH2.ZIP already posted here) in DOSbox, load the treefrog image and press CTRL-F5 to save a .PNG screenshot of the B/W line version. It will save a 640*400 image, so you have to pixel-resize it to 640*200. Hope that helps.

Reply 104 of 758, by nikiniki

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ripsaw8080 wrote:
FYI, you can easily toggle composite color with BASIC code: […]
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FYI, you can easily toggle composite color with BASIC code:

SCREEN 2: REM cga mode 6 (640x200x2)
OUT &H3D8,&H1A: REM enable color burst
OUT &H3D8,&H1E: REM disable color burst

Can be possible to do with screen 1 unstead screen 2?

Reply 105 of 758, by ripsaw8080

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It is possible to enable color burst for SCREEN 1 (mode 4, 320x200x4) with machine=cga, but DOSBox doesn't generate a composite palette for it automatically like it does for mode 6, so another port write is needed:

SCREEN 1: REM cga mode 4 (320x200x4)
OUT &H3D8,&H1A: REM enable color burst
OUT &H3D9,&H3F: REM generate composite palette

However, the colors are not correct for mode 4, because the current composite palette algorithm doesn't support it.

Reply 107 of 758, by Paul_Holmlund

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@BdR

That "COMPOSITE COLOR TEST" image is my current desktop image.

It's so * sniff.. * beautiful.. I look at it every day! * big silly grin *

I didn't realize that you could make the gradients, along the bottom, since the grey repeats. That is just epic. I look at it every day and get wilder and wilder ideas.

I promise to very soon, package up my *.GIF to *.CGA converter program, and the viewer, and a few example video files, and post on youtube the thing in action, so you guys can see what I did there.

~Kiyote!

Your GW-Basic program works quite well! I like it alot!

Reply 108 of 758, by Jorpho

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...Would anyone like me to edit the thread title, considering this hasn't had the slightest thing to do with Fooblitzky in a very long time? 😉 (Please suggest something appropriate.)

Reply 111 of 758, by Paul_Holmlund

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I asked, way back when, to put [SOLVED] on it.

"Would anyone like me to edit the thread title, considering this hasn't had the slightest thing to do with Fooblitzky"

I didn't post a new thread, because I doubted anyone would make anything out of it. I'm not exactly the most likable person on this forum. I've seen my account go "INVALID ACCOUNT" on me, behind my back. I guess either I did a big no-no, or someone remembers me, and just thinks I'm a little twerp.

~Paul Holmlund aka Kiyotewolf

Reply 112 of 758, by Paul_Holmlund

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Not to mention the fact, that the moderators seem to comment, right AFTER I post too.

If you guys have an issue with me personally, don't hide it, flat out tell me.

I'll just walk away if I must, but I really like this thread, so I'd prefer to be allowed to stay.

~PRH KW

Reply 113 of 758, by wd

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I'm not exactly the most likable person on this forum.

If you derive this from nobody bothering to add a SOLVED tag to this thread
(because nobody cares anyways) or because for possibly technical reasons/flaws
your old account was invalidated, i can assure you everybody still loves you
and at least 50% of the female board visitors want children from you.
Apart from that, everybody nice again, yes?

Reply 114 of 758, by BdR

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After my quick .GL animation test, I couldn't resist making a better video example. So I've created three 640*200 2 color animations that can make use of the CGA colorburst mode (including a nsfw one 🤣). The GLVIEW.EXE player cannot switch to composite mode, so you do need the COMPCGA3.EXE tool.

Each animation is an endless loop and has around 15 frames, because I assume GRASP can't handle >1MB files (I didn't test it). Besides, it was actually a lot more work than I expected converting the frames one by one, so making a .GL animation is not the preferred way.

Although it was pretty much an exercise in futility, the result looks kind of cool. It has a nice retro feel to it. 😎 It would probably be possible to create some sort of streaming video demo using CGA composite, similar to the "8088 Corruption" demo by Trixter. Though 160x200x16 color CGA mode would need a bit more data per frame, compared to 80x25 text mode.

Attachments

  • cga_humbird_animation.png
    Filename
    cga_humbird_animation.png
    File size
    17.2 KiB
    Views
    3291 views
    File comment
    frame from the HUMBIRD.GL animation
    File license
    Fair use/fair dealing exception
  • Filename
    glcga.zip
    File size
    434.14 KiB
    Downloads
    291 downloads
    File comment
    three 640*200 2 color animations in GRASP format, especially prepared for CGA colorburst mode
    File license
    Fair use/fair dealing exception

Reply 115 of 758, by BdR

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*kicks thread*

Someone took a Doom gameplay video in normal VGA mode and ran the video through some post-production video filter to simulate CGA modes. So this is not the CGA Doom patch, it's just made to look as if it is running on CGA.

http://www.youtube.com/watch?v=9YoqUM1ZLQ0

The "CGA composite" filter starts at 4:55, pretty nerdy but kinda cool too

Reply 116 of 758, by kiyotewolfe

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http://jafile.com/uploads/kiyotewolf/cgaview2.zip

This is my *.CGA format file viewer, and 3 example videos converted to *.CGA video.

~Kiyotewolf
-Paul Holmlund

[edit]

I will package up the converter I wrote to make the *.cga files, in a day or so, with instructions.

I use short clips, from any video source, then convert to an animated gif which has a resolution less than 320x200, in SUPER VIDEO CONVERTER, then use a modified animated gif viewer to do the converting.

Reply 117 of 758, by kiyotewolfe

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More screenshots

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  • JNGLHUNT.png
    Filename
    JNGLHUNT.png
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    26.75 KiB
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    2801 views
    File comment
    Title Screen of Jungle Hunt
    File license
    Fair use/fair dealing exception
  • DIRK.png
    Filename
    DIRK.png
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    59.6 KiB
    Views
    2801 views
    File comment
    Dragons Lair
    File license
    Fair use/fair dealing exception
  • GAUNT1.png
    Filename
    GAUNT1.png
    File size
    38.92 KiB
    Views
    2801 views
    File comment
    Gauntlet
    File license
    Fair use/fair dealing exception
  • GAUNT2.png
    Filename
    GAUNT2.png
    File size
    35.35 KiB
    Views
    2801 views
    File comment
    Gauntlet 2more
    File license
    Fair use/fair dealing exception

Reply 118 of 758, by kiyotewolfe

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Here is the converter, as well as a sample input file, sample output file.

http://jafile.com/uploads/kiyotewolf/zoidberg.zip

This is the link to SUPER VIDEO CONVERTER which I made the animated GIF from.

http://www.erightsoft.com/SUPER.html

I recommend 240x192 resolution, 23.976 fps.

~Kiyote Wolf

Reply 119 of 758, by kiyotewolfe

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Anyone interested in the source codes of both the player & the transcoder?

They require QuickBasic to be compiled into *.EXE files.

~Kiyote!

o3o Anyone like what they have to play with now?