Jealousy
"This stern eye you fear, This condemning finger pointed at you" (c) Samael This is an experimental work made for Timex TC2144 and TC2128 modifications, which are basically TC2048 with support of 128 memory. This makes possible usage of two Hi-Res images instead of one, so a gigascreen can be displayed. Since Timex Hi-Res supports some global coloring, the different schemes can be combined to get a palette of 4 colours. Initially the image was made in a darker palette because of calculation error, which was corrected on one of the last stages.
| Title: | Jealousy |
| Author: | moroz1999 |
| Format: | Timex TC2144/TC2128 Hi-Res Gigascreen |
| Palette: | sRGB |
| Party: | Multimatograf 2018 (Out of compo / Disqualified) |
| Year: | 2018 |
| Original filename: | Jealousy.hrg |
 Original file | |
| Download for PC 2X 3X 4X | |
| Download for printing (A4 300dpi) | |
| Tags: | Beard, Face, Male, Religion, Skull, Sky, Stone, Бог |
| Rating: | 4.45 |
| Views: | 732 |
| Added by: | moroz1999, 30.04.2018 00:26 |
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Votes history
| Nickname | Votes | Date |
|---|---|---|
| hepterida | 5 | 01.01.2023 04:18 |
| Grongy | 5 | 01.12.2021 19:23 |
| Ricardo | 5 | 04.12.2019 16:46 |
| creator | 5 | 30.09.2019 11:51 |
| G.Nerc=Y.uR | 5 | 19.03.2019 20:29 |
| elfh | 5 | 04.01.2019 00:39 |
| jok | 5 | 14.11.2018 12:39 |
| vassa | 5 | 19.05.2018 19:12 |
| sashka | 5 | 03.05.2018 08:58 |
| diver | 5 | 02.05.2018 14:07 |
| tiboh | 4 | 01.05.2018 12:26 |
| ЯeAniMaToR | 5 | 01.05.2018 01:48 |
| pixelrat | 5 | 30.04.2018 20:24 |
Red/cyan & black/white ?
There are some other possible combinations as well. It's best seen on interlaced mode, but I'm not sure that interlaced gigascreen is possible on real machine, since there are two ports to output updated value for each row. So it requires some proof of concept.
I'd like to try to convert some images to that format.
It's currently just two hires images together:
* 12288 bytes of first image (progressive, plain pixels)
* 1 byte of color info
* 12288 bytes of second image (progressive, plain pixels)
* 1 byte of color info
It's a same format as usual Timex Hi-Res image, just doubled. So basically on real hardware each image should be divided by even/odd columns and each half placed into right memory location. Color info byte should be switched for each frame similar way as #7ffd value.
1. Open it in photoshop.
2. Set all layers black except one clean INK color, save as first image.
3. Set all layers black except another clean INK color, save as second image.
4. Convert both images to usual Hi-Res using BMP2SCR.
5. Adjust the last byte of each image for a desired color setting as described in https://www.worldofspectrum.org/faq/reference/tmxreference.htm
6. Merge both converted images into single file.
When I have time I'll play a bit with Javascript and see if I can write a viewer / converter :)
Hires Interlace is an interesting concept.
Possible palettes:
http://images2.imagebam.com/a3/98/d4/e34052855602834.png
Same image with different palettes:
1
http://images2.imagebam.com/b7/56/ce/926b7f855602594.png
2
http://images2.imagebam.com/61/21/90/62b00d855602664.png
3
http://images2.imagebam.com/8d/c2/ad/e579fb855602694.png
4
http://images2.imagebam.com/4d/50/8b/0b4d5d855602724.png
5
http://images2.imagebam.com/d1/d1/3c/64d521855602774.png
6
http://images2.imagebam.com/f0/83/df/d460ef855602804.png
If you want you can use this image for tests, conversions, etc!
You can't show colors from just one image on gigascreen, you must always mix!
I'll redo all of this.
(feel free to delete my post if it creates confusion)
http://images2.imagebam.com/5c/7b/ab/b034af857629704.png
On the left, you have the colors for each screen, on the right, the 4 (or 3) combinations you get with mixing.
http://images2.imagebam.com/f8/91/86/716b6e857641114.png
This will also nicely affect the images :)
Color space correction is an interesting idea. I guess the best solution is what looks closer to what you get on real hardware.
I think that since there is no gigascreen blending on real hardware, then we should stick to choosing a proper blending for LCD monitors.
You can make a post on Spectrum Computing, I'm just a bit overloaded lately, it would take me some months before I open this discussion :)
The test image https://zxart.ee/userfiles/images/srgb/srgb.gif shows the checkerboard bottom left patterns similar to the right solid colors on all examples.
That's expected, my monitor is gamma corrected.
The top left flickering area on the first example looks very different (#00 #CD). It looks much darker than the reference colors.
The right example is OK, all areas are similar.
The middle example is close, but again the flickering area looks a bit darker than the rest.
___________________________
For Timex images, you only have the Bright attribute variants, so all this is a bit simplified.