Moiré Slit Animation (Scanimation) Print Generator

This script generates two printable files used to create a classic barrier-grid / slit moiré (scanimation) animation.

You print the base image on paper, print the barrier mask on a transparency, then slide the transparency across the base to reveal each frame one at a time—creating the illusion of motion.

Output Files

The script writes files into the output folder (default: output/):

• interlaced_base.png → print on paper
• barrier_mask.png → print on transparent film (black bars block light, slits are transparent)

Tips

Make sure your printer is set to no scaling (100%).

Requirements

Install dependencies:

pip install -r requirements.txt