texture.pde

PImage generateTex(int w, int h) {
  
  PImage img = createImage(w, h, ARGB);
  
  //size of each checker square
  int size = 64;
  color c = color(0);

  //loop through each pixel in the image (img)
  for(int i = 0; i < img.width; i++) {
    
    //alternate between colours after size(in pixels) has been reached
    if (i % size == 0) {
        
        if (c == color(255)) {
        
          c = color(0);  
        
        } else { 
        
           c = color(255);
        }
    }
    
    for(int j = 0; j < img.height; j++) {

      if (j % size == 0) {
        
        if (c == color(255)) {
        
          c = color(0);  
        
        } else { 
        
           c = color(255); 
        }
      }
      
      //set the pixel[x][y] co-ordinate to a colour value
      img.set(i, j, c);
      
    }//inner loop      
  }//outer loop 
  
  return img;
}