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#javascript-processing-example-basic-image-alphamask.htm / htm



  <!DOCTYPE html>
  <html><head>
  <script src="javascript-processing-example-processing.js"></script>
  <script src="javascript-processing-example-init.js"></script>
  <link rel="stylesheet" href="javascript-processing-example-style.css">
  </head><body><h1><a href="http://ejohn.org/blog/processingjs/">Processing.js</a></h1>
  <h2>Alphamask</h2>
  
  <p>Loads a "mask" for an image to specify the transparency 
  in different parts of the image. The two images are blended
  together using the mask() method of PImage. 
  
  Created 29 April 2003.</p>
  
  <p><a href="http://processing.org/learning/basics/alphamask.html"><b>Original Processing.org Example:</b> Alphamask</a><br>
  <script type="application/processing">
  PImage img;
  PImage maskImg;
  
  void setup() 
  {
    size(200,200);
    img = loadImage("test.jpg");
    maskImg = loadImage("mask.jpg");
    img.mask(maskImg);
  }
  
  void draw() 
  {
    background((mouseX+mouseY)/1.5);
    image(img, 50, 50);
    image(img, mouseX-50, mouseY-50);
  }
  </script><canvas width="200" height="200"></canvas></p>
  <div style="overflow: hidden; height: 0px; width: 0px;"><img src="javascript-processing-example-mask.jpg" id="mask.jpg"><img src="javascript-processing-example-test.jpg" id="test.jpg"></div>
  
  <pre><b>// All Examples Written by <a href="http://reas.com/">Casey Reas</a> and <a href="http://benfry.com/">Ben Fry</a>
  // unless otherwise stated.</b>
  PImage img;
  PImage maskImg;
  
  void setup() 
  {
    size(200,200);
    img = loadImage("test.jpg");
    maskImg = loadImage("mask.jpg");
    img.mask(maskImg);
  }
  
  void draw() 
  {
    background((mouseX+mouseY)/1.5);
    image(img, 50, 50);
    image(img, mouseX-50, mouseY-50);
  }</pre>
  </body></html>
  


(C) Æliens 20/2/2008

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