Transparency

/** * Transparency. * * Move the pointer left and right across the image to change * its position. This program overlays one image over another * by modifying the alpha value of the image with the tint() function. */ PImage* img; float offset = 0; float easing = 0.05f; void setup() { size(640, 360); img = loadImage("moonwalk.jpg"); // Load an image into the program } void draw() { image(img, 0, 0); // Display at full opacity float dx = (mouseX - img->width / 2) - offset; offset += dx * easing; tint(255, 127); // Display at half opacity image(img, offset, 0); }