From 60790fea185b45aebf892ac01104533532781a43 Mon Sep 17 00:00:00 2001
From: Tim Schaub <tim.schaub@gmail.com>
Date: Sun, 10 Oct 2021 13:03:09 -0600
Subject: [PATCH] Only trigger change event if animating a tile transition

---
 src/ol/source/Raster.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ol/source/Raster.js b/src/ol/source/Raster.js
index 824c0e62c8..f6bd72442b 100644
--- a/src/ol/source/Raster.js
+++ b/src/ol/source/Raster.js
@@ -862,7 +862,9 @@ class RasterSource extends ImageSource {
     this.dispatchEvent(
       new RasterSourceEvent(RasterEventType.AFTEROPERATIONS, frameState, data)
     );
-    requestAnimationFrame(this.changed.bind(this));
+    if (frameState.animate) {
+      requestAnimationFrame(this.changed.bind(this));
+    }
   }
 
   disposeInternal() {