Examples+
Noise Wave
by Daniel Shiffman
Using Perlin Noise to generate a wave-like pattern.
Highlighted Features
/**
* Noise Wave
* by Daniel Shiffman.
*
* Using Perlin Noise to generate a wave-like pattern.
*/
float yoff = 0.0; // 2nd dimension of perlin noise
void setup() {
size(640, 360);
}
void draw() {
background(51);
fill(255);
// We are going to draw a polygon out of the wave points
beginShape();
float xoff = 0; // Option #1: 2D Noise
// float xoff = yoff; // Option #2: 1D Noise
// Iterate over horizontal pixels
for (float x = 0; x <= width; x += 10) {
// Calculate a y value according to noise, map to
float y = map(noise(xoff, yoff), 0, 1, 200,300); // Option #1: 2D Noise
// float y = map(noise(xoff), 0, 1, 200,300); // Option #2: 1D Noise
// Set the vertex
vertex(x, y);
// Increment x dimension for noise
xoff += 0.05;
}
// increment y dimension for noise
yoff += 0.01;
vertex(width, height);
vertex(0, height);
endShape(CLOSE);
}
This example is for Processing 4+. If you have a previous version, use the examples included with your software. If you see any errors or have suggestions, please let us know.