Always make canvas just bigger than window size

voicegardens/static/voicegardens.js

@@ -6,8 +6,8 @@
 
 var archiveUrl = window.location + "add-to-archive";
 var canvas;
-var canvasHeight;
-var canvasWidth;
+var canvasHeight = 500;
+var canvasWidth = 500;
 var centerX;
 var centerY;
 var frameRate = 30;
@@ -304,8 +304,8 @@ function setup() {
   /**
    * The p5.js initial setup function.
    **/
-  canvasWidth = windowWidth;
-  canvasHeight = windowHeight;
+  canvasWidth += windowWidth;
+  canvasHeight += windowHeight;
 
   createCanvas(canvasWidth, canvasHeight);
   frameRate(frameRate);
@@ -375,5 +375,7 @@ function windowResized() {
   /**
    * Canvas re-draw handling.
    **/
-  resizeCanvas(windowWidth, windowHeight);
+  canvasWidth += windowWidth;
+  canvasHeight += windowHeight;
+  resizeCanvas(canvasWidth, canvasHeight);
 }