Initial Commit

Java/Processing/processing-3.3.6/modes/java/examples/Basics/Image/Alphamask/Alphamask.pde

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+/**
+ * Alpha Mask. 
+ * 
+ * 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. 
+ */
+
+PImage img;
+PImage imgMask;
+
+void setup() {
+  size(640, 360);
+  img = loadImage("moonwalk.jpg");
+  imgMask = loadImage("mask.jpg");
+  img.mask(imgMask);
+  imageMode(CENTER);
+}
+
+void draw() {
+  background(0, 102, 153);
+  image(img, width/2, height/2);
+  image(img, mouseX, mouseY);
+}