CG History Home

My Early 2D Stuff

Everybody has to start somewhere. Assembling the material for this page was like uncorking a time capsule. Most of it was done on the original Amiga, the A1000, in 1986 and 1987, using Deluxe Paint, AmigaBASIC, and Workbench 1.1 and 1.2.

Color Cycling. Back when computer memories were measured in Ks rather than Ms or Gs, an economical way to produce animation was to cycle the color palette. The pixel data, an array of indexes into a color lookup table, doesn't change at all. The colors in the table are cycled to create the illusion of motion. (I'm pretty sure you can't do this in GIF. In fact, there's a full-color GIF trick that relies on palettes being frame-local.)

Program Driven. While playing around with random dissolves and animated effects, I wrote an AmigaBASIC program to create this frog. He appeared on the screen one random block at a time, then his eye and mouth sequences were played at random intervals. I used the Amiga's built-in text-to-speech facility to give him a good croak. The random feel is recreated here by making the frame rates of the parts relatively prime, but in the original, he could go for a long time without croaking, which gave the animation an element of suspense.

Yeah, I know, but my wife thought he was cute. This, of course, is Unilever's fabric softener bear.

Antialiasing. Note the difference between the two small blue stars in the lower left. One exhibits aliasing, a jagged stairstep effect caused by undersampling. The edges of the other one have been blurred in a precise way that, while not eliminating the sampling error, spreads it around so that it's much less objectionable to the eye. I antialiased a number of my early images by hand, one pixel at a time. The antialiased drawing tools everyone now takes for granted didn't exist.

Cross Stitch. For a time, I experimented with using needlepoint and cross stitch patterns to paint images, sort of a digital paint-by-numbers. The patterns seemed ideal for this, since they were already laid out on a grid and used a relatively small palette. The results were often excellent, but they're unoriginal, of course, and the work is incredibly tedious, with none of the salutary meditative benefits of doing real needlepoint.

I considered doing this in reverse, turning original digital images into needlepoint patterns, but I never actually tried it.

IBM PC XT. Remember when every computer looked like this? Compared to current machines, the CPUs were a thousand times slower and the hard drives ten thousand times smaller. Their 12-inch screens supported 16 colors, and their speakers supported sounds like "beep," "beeeeep," and other beepish and clicky noises. An XT cost $5000 in 1985.

I painted this for my father-in-law. CAAPS was a process simulation program he wrote for his chemical engineering students.

My "Cylindrical Object" Period

This image was based on a photograph. To get the proportions right, I transcribed the outlines using a grid technique sometimes taught to beginning art students. (Remarkably, there's now at least one company with a line of art products designed for this approach.)

Ernie Wright