Alphamask

This example is for Processing (BETA) version 149+. If you have a previous version, use the examples included with your software. If you see any errors or have comments, please let us know.

Create Image.

The createImage() function provides a fresh buffer of pixels to play with. This example creates an image gradient.


PImage img;

void setup() 
{
  size(200, 200);  
  img = createImage(120, 120, ARGB);
  for(int i=0; i < img.pixels.length; i++) {
    img.pixels[i] = color(0, 90, 102, i%img.width * 2); 
  }
}

void draw() 
{
  background(204);
  image(img, 33, 33);
  image(img, mouseX-60, mouseY-60);
}