day 20 - not much, application of sin() to blending

Not much done today, had a lot of 'work' to do. But I did finally get by head around the sin() function asa way of smoothly traversing something up and down. I really never 'got' this before, feels like a big achievement to me at least :)

In this example sin() is moving through the 0-255 range of the RGB colours art different rates.  made this pretty picture...

float angle = 0.0;

void setup() {
   size(400,400);
  smooth();
}


void draw() {
   translate(mouseX,mouseY);
  rotate(angle);
  float circ = ((1+sin(angle))*(255/2));  //sin(angle) = -1 to +1, so add one to get range 1 to 2, then multiply by colour range 255 divided by 2
  float circ1 = ((1+sin(angle/3))*(255/2));
  float circ2 = ((1+sin(angle/7))*(255/2));
  fill(circ, circ1, circ2);
 rect(-15,-15,60,10);
  angle += .1;
}

void mouseClicked() {
 saveFrame("pic-####.jpg");
}