Spectrum Computing

We have non-spectrum software already (Jupiter Ace), don't think it's a problem. And a few CP/M titles are already listed.

But I agree that having many titles as regular +3 software might be confusing. We might need a new hardware category, perhaps "+3 CP/M" ?

You need to handle image display on your end, as ZXDB will only provide relative paths and in most cases native formats. Each ZXDB site/app handles paths and image conversions differently, with custom solutions as needed. Linking to existing sites is not a good practice, because of increased traffic...

I'll let Einar answer, but let me add that some running screens are also SCRs. In some cases, other spectrum formats are used in order to preserve multicolor information.
This is done from a preservation point of view, as we are interested in storing all of the original data to the bit level.

Check ZX-Image:
PHP-based ZX Spectrum images parsing into PNG/GIF. Supports animation, supports file caching.

https://github.com/moroz1999/zx-image

PeterJ wrote: ↑Thu Mar 24, 2022 8:22 am @Juan F. Ramirez,

The quality of the map in Mapgame is excellent.

Both the physical and regional maps are quite good.

Simply design Spectrum compatible graphic assets (respecting attributes and palette) but disregard any limitations for scrolling or sprite animation.

Brilliant graphics and smooth gameplay. Really good!

Very interesting!
Having programmed a similar app, I recommend measuring colour distances using non-RGB colour spaces. Will come in handy when you dithering across attribute cells. You can consider each cell as having its own 2 colour palette. It's the only way to get decent results

Very interesting!
Can be taken a step further: saving/loading the memory dump as a PNG so you can edit graphics.

"cámara" here means chamber
It usually means a photographic camera, but not in this context.

In Portuguese, the word is similar ("câmera") and has the same meanings.

Conceptually the pixels are square. The TV signal was generated with this assumption in mind: generate a 4:3 central area made up of square pixels. There were some minor deviations (like white/black not having exactly the same dimensions) but they are too small to notice. To avoid any confusion betw...

Very good work!

But clashing with the red girders would be horrendous. I think the key is to accept colour clash and minimize the effect through a good choice of colours. » White/yellow, red/magenta or black/blue have low contrast between them, so clashing between these is not problematic. » Yellow/cyan don't cont...

There's a trick for upscaling to uneven factors and partially retaining the pixel art look ;) First, you do a large nearest neighbor upscale, to 400% or 600% of the original size. After that, you do a normal downscale (using normal interpolation/anti-alias) to the desired arbitrary size. 100% Origin...

The simplest approach is to consider square pixels and use integer scaling - 1x, 2x, 3x, etc. Interpolation on both axes is problematic, because that's not how CRTs worked... CRTs displayed a raster image, with some value averaging along each line - a sort of horizontal "pixel" smearing - ...

Looks great! I'd just add some minimal colour to better distinguish between walls and sprites

Thanks for the new version! Just a few (pedantic) remarks :D Ideally "reduce pixelation" should only do horizontal interpolation, to simulate CRT raster scan across each line. There should be no vertical interpolation ;) I know that interpolation on both axes is common on almost all emulat...

Fixed. Thanks for info, as you say compilations should remain as animated gifs.

Scuba Attack, Bomber and Plus 3 Pack fixed

Tried a few times in ADG, but never got past the early mockup stage with converted graphics. This was a Bomb Jack clone, just to see if I could get decent jumping/playability. I couldn't, physics was always off so I stopped. https://i.postimg.cc/LstRpKDq/jack1.png An attempt to do something like fli...

Dizzy's Excellent Adventures and River Raid fixed

For this reason I have had to use a very low resolution (1/3 of the screen and rendering every 2 lines), which leaves me with a resolution of 32x32. ... Thanks for the constructive criticism, it will help me to improve in the future. Being constructive, I think that gameplay could be adapted to bet...

Well spotted. Checked the game (Return to Oz) and indeed the green doesn't use Bright.
Reverted and captured a proper ingame .scr for it, should solve any future doubts

Graphics Utility fixed (added white border using the Preservation Tools).

Polaris has simple graphics that can be ported directly (it even has colour clash).
But I don't know about the smaller screen size and horizontal orientation. It might affect gameplay, so perhaps you'd need to redraw the sprites to be smaller. Anyway, you'd get a very faithful conversion I'm sure