diff --git a/public/js/webgl-book-lab.js b/public/js/webgl-book-lab.js
index 71a66ce..5551fe7 100644
--- a/public/js/webgl-book-lab.js
+++ b/public/js/webgl-book-lab.js
@@ -1051,8 +1051,14 @@ function resize() {
     renderer.setSize(width, height, false);
     camera.aspect = width / height;
     camera.updateProjectionMatrix();
-    const reflectionWidth = Math.max(1024, Math.min(4096, Math.floor(width * reflectionPixelRatio * 1.5)));
-    const reflectionHeight = Math.max(576, Math.min(2304, Math.floor(height * reflectionPixelRatio * 1.5)));
+    const desiredReflectionScale = reflectionPixelRatio * 1.5;
+    const reflectionScale = Math.max(1, Math.min(
+        desiredReflectionScale,
+        4096 / width,
+        2304 / height
+    ));
+    const reflectionWidth = Math.floor(width * reflectionScale);
+    const reflectionHeight = Math.floor(height * reflectionScale);
     reflectionTargetSize.set(reflectionWidth, reflectionHeight);
     tableReflectionTarget.setSize(
         reflectionTargetSize.x,