/**

 * Mixture

 * by Simon Greenwold.

 *

 * Display a box with three different kinds of lights.

 */

void setup() {

  size(640, 360, P3D);

  noStroke();

}

void draw() {

  background(0);

  translate(width / 2, height / 2);

  // Orange point light on the right

  pointLight(150, 100, 0, // Color

             200, -150, 0); // Position

  // Blue directional light from the left

  directionalLight(0, 102, 255, // Color

                   1, 0, 0); // The x-, y-, z-axis direction

  // Yellow spotlight from the front

  spotLight(255, 255, 109, // Color

            0, 40, 200, // Position

            0, -0.5, -0.5, // Direction

            PI / 2, 2); // Angle, concentration

  rotateY(map(mouseX, 0, width, 0, PI));

  rotateX(map(mouseY, 0, height, 0, PI));

  box(150);

}