SuPer eXcellent graphics demo

I made a thing

I've been enjoying another doodle on my Atari ST, if you wanna see more of my work click here. Okay, this time I've been experimenting with SPX, a technology created by Electronic Images in the early 90s. This magically stitches several Spectrum 512 pics into one ginormous image displayed in scrollable overscan.

I've always loved the idea of the SPX format and remember buying several PD disks. Most pictures were titillating girls or something of a fantasy theme (no complaints from me). The potential of huge Spectrum 512 images, in overscan, was quite mind-blowing at the time. (ignore my capture, the scrolling is silky smooth).

SuPer eXcellent Graphics Demo can be downloaded from my Dropbox. Be warned, it's big. Too big for a real floppy (I got carried away and made lots of SPX images). So installation is intended for a hard drive or Ultrasatan. However, I have made a huge ".ST" image that should work as an alternative for emulation.

Perhaps you feel inspired to make your own SPX images? I would love to see whatever you guys create - let me know in the comments. Scroll down for more information and I hope you enjoy my graphics demo.

Go, create!

Now, reading these instructions might appear longwinded? Far too much hassle if you're as lazy as me? Well, don't worry because it's actually easy to make your own SPX images. Dead easy, so have a bash:

• Those without any artistic skills, ahem, should download images off the internet!! Look for something large, possibly with a clean background and try to select something that uses a portrait ratio. There's loads out there, google is your friend.
• Crop that large image into 320x199 segments. (a line is lost due to a limitation of Spectrum 512). This cropping can be done on the ST or a PC/Mac (I used 'Preview' on my Mac).
• Once you have your image split into several segments, it's best to convert them into GIFs. Again, this can be done on the ST but is probably much quicker on the Mac/PC if I'm honest. Yowzers!
• Now copy all your new GIF files over to the Atari ST.
• Each GIF will need converting into Spectrum 512 format (.SPC) and the best program for that is 'GIF to Atari Spectrum 512 Picture Converter' by Steve Belczyk. A brilliant program!
• Each SPC file can now easily be imported into SPX Creator for both previewing and creating. All your SPX pictures can be displayed using the dedicated viewer, 'SPX_V18D.PRG'

An example...

Check out this portrait image of Jason Voorhees that I split into three segments on my Mac (above!). As you can see, I carved it into the relevant sections, which are converted to GIFs and imported into SPX Creator.

A standard ST might take a few minutes to save this fantastic image but it's well worth it.

Credits

Idea and creation were mine - Steve, Crypt Keeper, Strider, AtariCrypt, whatever you call me ;o)  

The real credits

Spectrum 512 - Boris Tsikanovsky.
SPX Creator/Viewer - Electronic Images (Gizmo + The Phantom).
Original images - Everything was freely sourced off the internet with appropriate credit.
AtariMania & Demozoo - two super Atari resources that I used for my dabble. 

Programs used

Preview - a freebie Mac program to resize and clip each image into 320x199 segments.
GIF2SPC - a wonderful Atari ST program by Steve Belczyk.
SPX Creator - the program that stitches together each of the GIF pictures into SPX images. 

Links

SuPer eXcellent Graphics Demo is the latest AtariCrypt production. Yes, there's more O_o
Electronic Images released loads of disks so check 'em out on Demozoo.
There are many SPX Slideshows although I remember more? I should research...