Daily 180612

gistfile1.txt

//adapt to your framework

val traceA = ArrayBuffer[Vec2]()
val traceB = ArrayBuffer[Vec2]()
val frac = frameCount%120
val frac2 = .7+.3*sin(frac*TWO_PI)
val s = 700
val r = width*.01
for(k <- 0 until s){
  val f = (k)*1.0/s
  //angle start
  val a = f*TWO_PI
  val ca = cos(a)
  val sa = sin(a)
  val r1 = (noise(2+2*ca,2+2*sa,0)*width*.1)*(1+frac2*(cos(f*TWO_PI-frac*3*TWO_PI)))
  val r2 = (noise(2+2*ca,2+2*sa,4)*width*.1)*(1+frac2*(cos(f*TWO_PI-frac*2*TWO_PI)))
  val r3 = (noise(2+2*ca,2+2*sa,7)*width*.1)*(1+frac2*(cos(f*TWO_PI-frac*4*TWO_PI)))
  //center
  val cx = cos(a)*(r + r1*2 + r2)
  val cy = sin(a)*(r + r1*2 + r2)
  val s4 = 360

  for( kk <- 0 until s4){
    val a2 = kk*1.0/s4*TWO_PI+a-PI
    val x = cx + r2*cos(a2)
    val y = cy + r2*sin(a2)
    traceA += new Vec2(x,y)
  }
  val cx2 = cos(a)*(r + 2*r1 + r2*2 + r3)
  val cy2 = sin(a)*(r + 2*r1 + r2*2 + r3)
  for( kk <- 0 until s4){
    val a2 = kk*1.0/s4*TWO_PI+a-PI
    val x = cx2 + r3*cos(a2)
    val y = cy2 + r3*sin(a2)
    traceB += new Vec2(x,y)
  }
}

//then draw the vertices in traceA and traceB as polygons