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CM2030 Graphics Programming/Topic 8/8.3.3 Additive Synthesis Circle/sketch.js

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+function setup() {
+    createCanvas(550,550);
+    background(0);
+    angleMode(DEGREES);
+}
+/////////////////////////////////////////////////
+function draw() {
+    background(0);
+    noStroke();
+    fill(255,0,255);
+
+    translate(width/2,height/2);
+
+    //ADDITIVE SYNTHESIS IN A CIRCLE
+    var radius = 150;
+    beginShape();
+    for (var theta=0; theta<360; theta+=1){
+      var wave1 = 0;// your sine code here
+      var wave2 = 0;// your noise code here
+      var r = radius + wave1 + wave2;
+      var x = cos(theta) * r;
+      var y = sin(theta) * r;
+      vertex(x,y);
+    }
+    endShape(CLOSE);
+}