At the heart of DeadPixel lies a mathematical concept known as a vector flow field. While it may look like magic, the swirling patterns are the result of complex calculations involving Perlin noise and trigonometry. Understanding the mechanics behind the chaos allows you to move from simply watching the simulation to actively directing it. In this guide, we will explore how to master the invisible forces that drive the particles.
The Science of Simplex Noise
The "Complexity" slider in the control panel is linked directly to a Simplex Noise algorithm. Unlike random white noise, Simplex Noise is smooth and continuous. Think of it as a topographical map of invisible hills and valleys. The particles in our simulation are like marbles rolling across this landscape.
When you set the Noise Scale to a low value (e.g., 0.002), you are essentially "zooming in" on the landscape. The hills become gentle, broad slopes, causing the particles to move in long, sweeping rivers. This is perfect for creating serene, minimalist compositions.
Conversely, a high value (above 0.015) "zooms out," revealing jagged peaks and tight valleys. The particles are forced to change direction rapidly, creating turbulence, eddies, and intricate, thread-like details. This setting is ideal for high-energy, chaotic art.
Geometric vs. Fluid Motion
By default, DeadPixel uses a fluid motion model where particles flow freely. However, switching to Geometric Mode imposes a new set of rules. We quantize the space into a grid, snapping particle velocity vectors to cardinal directions (Up, Down, Left, Right). The result is a "Manhattan distance" aesthetic, reminiscent of circuit boards or city maps. This mode pairs exceptionally well with the Monochrome palette for a stark, brutalist look.
Symmetry: Creating Order from Chaos
Even the most chaotic flow field can be tamed with symmetry. The Symmetry Points slider mirrors the canvas across multiple axes. A value of '1' means no symmetry. Increasing this to '6' or '8' turns the canvas into a kaleidoscope. The particles still follow the noise field, but their paths are replicated radially. This is the secret to creating perfect mandalas and "sacred geometry" style artworks effortlessly.