2 files changed, 11 insertions, 1 deletions
diff --git a/site/main.css b/site/main.css
index f875232..19a3835 100644
--- a/site/main.css
+++ b/site/main.css
@@ -9,3 +9,9 @@ canvas {
     border: 1px solid orangered;
     background-color: rgb(200 200 200);
 }
+
+#fps {
+    display: inline-block;
+    width: 2em;
+    text-align: right;
+}
diff --git a/site/main.mjs b/site/main.mjs
index 280ee43..f3571ec 100644
--- a/site/main.mjs
+++ b/site/main.mjs
@@ -222,10 +222,14 @@ async function loaded() {
     };
 
     let lastTime = document.timeline.currentTime;
+    let interCount = 0;
     function render(t) {
         if (t > lastTime) {
-            fps.textContent = Math.floor(1_000 / (t - lastTime));
+            fps.textContent = Math.floor(1_000 * interCount / (t - lastTime));
             lastTime = t;
+            interCount = 0;
+        } else {
+            interCount++;
         }
 
         ctx.clearRect(0, 0, canvas.width, canvas.height);