coloured grass

//Samuel Bravo. Santiago, Chile, 2008. http://terreno.wordpress.com

​

float c= 0;

float crece=0;

// array

int pastoCount = 10;

Pasto[]pastos = new Pasto[pastoCount];

float[]x = new float[pastoCount];

float[]y = new float[pastoCount];

float[]rx = new float[pastoCount];

float[]ry = new float[pastoCount];

float[]spd = new float[pastoCount];

float[]rot = new float[pastoCount];

​

void setup(){

  //initialize arrays with random values

  for (int i=0; i<pastoCount; i++){

    pastos[i] = new Pasto(); 

    x[i] = random(20, 40);//rango de altura

    y[i] = random(4, 4.5);//tamaño de los tramos

    rx[i] =random(55);

    ry[i] = random(-55, 55);

    spd[i] = random(.1, 3.75);

    rot[i] = random(-.85, .85);

    frameRate (24);

    size(600, 600);

  }

}

void draw(){

  c=c+.06;

  translate (width/2,height);

  background(245);

  for (int i=0; i<pastoCount; i++){

    float d=rot[i];

    float ph=-x[i];

    if(crece<y[i]){

      crece=crece+.001;

    }

    translate(ry[i],0);

    pushMatrix();

    rotate(-PI);

    float _rot= cos(c)+d;

    for (float tramo=crece; tramo>0;tramo=tramo-.1){

      pastos[i].linea( tramo*spd[i], _rot, rx[i]);

    }

    popMatrix();

  }

  // saveFrame("anim3/pasto-####.png");

}

class Pasto{

  // properties

  float offsetX, offsetY;

  // constructors

  Pasto(){

  }

  // methods

  void linea(float h,float rot, float _ph){ 

    rotate(rot/h*.2);

    for (float z=0;z<h;z=z+3){

      float e=10-((-_ph)/(-_ph*1.1-z));

      strokeWeight(e*+h*.3);

      stroke(240-1/(e*+h*.0001),40,70+rot*600,18);

      point (0,z);

      strokeWeight(e*+h*.05);

      stroke(250,50);

      point (0,z);

    }

    translate (0,h);

  }

}

​