size(500, 100, P3D); background(200); beginShape(POINTS); stroke(255,0,0);vertex(30, 20); stroke(0,0,255);vertex(85, 20); stroke(0,255,0);vertex(85, 75); stroke(255,0,0);vertex(30, 75); endShape(CLOSE); beginShape(POINTS); stroke(0,0,255);vertex(130, 20); stroke(255,0,0);vertex(185, 20); stroke(255,0,0);vertex(185, 75); endShape(CLOSE); beginShape(POINTS); stroke(0,0,0);vertex(230, 20); stroke(255,0,0);vertex(285, 20); endShape(CLOSE); beginShape(POINTS); stroke(0,0,255);vertex(330, 20); endShape(CLOSE);