The first week’s assignment is to build a one-color Risograph with p5.riso. Risograph printer is a machine full of mystery and artistic effect. The way it locates and prints color is not always solid or accurate. However due to this special characteristic, it usually creates art beyond common sense of people. I was inspired by some class material which shows amazing optical effects, I decided to do a simple experiment on designing / printing a risograh with optical illusion.
First, I created a new riso layer with const red = new Riso("red"), and used red.circle(...) function to draw circles. Then, I used a for loop to repetitively draw circles of different radius and made it look like a spiral target (or the shooting target).
The printing is already cause me dizzy since the special mechanism the Risograph printer uses to draw colors with transparency. But I want it to have more optical effect. So, I made each ring with different transparencies:
And it indeed looks even better on the printing paper, because it also combines the paper texture and adds more noise:
But I think the static printing is still not that expressive compared to the animations. So, if I had a chance I would like to try to make it into a series of animations. (perhaps in the following few weeks?)
by Jinzhong Yu