Terreno

// Daniel Shiffman

// http://codingtra.in

// http://patreon.com/codingtrain

// Code for: https://youtu.be/IKB1hWWedMk

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int cols, rows;

int scl = 20;

int w = 2000;

int h = 1600;

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float flying = 0;

​

float[][] terrain;

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void setup() {

  size(600, 600, P3D);

  cols = w / scl;

  rows = h/ scl;

  terrain = new float[cols][rows];

}

​

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void draw() {

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  flying -= 0.1;

​

  float yoff = flying;

  for (int y = 0; y < rows; y++) {

    float xoff = 0;

    for (int x = 0; x < cols; x++) {

      terrain[x][y] = map(noise(xoff, yoff), 0, 1, -100, 100);

      xoff += 0.2;

    }

    yoff += 0.2;

  }

​

​

​

  background(0);

  stroke(255);

  noFill();

​

  translate(width/2, height/2+50);

  rotateX(PI/3);

  translate(-w/2, -h/2);

  for (int y = 0; y < rows-1; y++) {

    beginShape(TRIANGLE_STRIP);

    for (int x = 0; x < cols; x++) {

      vertex(x*scl, y*scl, terrain[x][y]);

      vertex(x*scl, (y+1)*scl, terrain[x][y+1]);

      //rect(x*scl, y*scl, scl, scl);

    }

    endShape();

  }

}