diff --git a/www/js/webgl-demo.js b/www/js/webgl-demo.js
index 5e58854..c8c8217 100644
--- a/www/js/webgl-demo.js
+++ b/www/js/webgl-demo.js
@@ -67,11 +67,8 @@ function renderShader(gl, vsSource, fsSource) {
   // objects we'll be drawing.
   const buffers = initBuffers(gl);
 
-  // Draw the scene
-  // drawScene(gl, programInfo, buffers, 0);
-
   const fpsLimit = 30;
-  const fpsDelta = 1000 / 30;
+  const fpsDelta = 1000 / fpsLimit;
   // let timePrev = 0;
   // requestAnimationFrame asks the browser to call render,
   // providing the time in milliseconds since the page loaded
@@ -128,7 +125,7 @@ function main() {
     `;
 
   // Fetch fragment shader program
-  fetchShader("segfault.glsl")
+  fetchShader("fbm.glsl")
     .then(fsSource => {
       renderShader(gl, vsSource, fsSource);
     });