From b47d6b0ce46e0e8d13a99c3713c6ab9842159648 Mon Sep 17 00:00:00 2001
From: Viktor Kovacs <viktorkovacs@gmail.com>
Date: Sun, 25 Apr 2021 15:33:36 +0200
Subject: [PATCH] Maintain device pixel ratio during resize, so the render
 won't be blurry when the users set the scale for the whole webpage.

---
 source/viewer/viewer.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/source/viewer/viewer.js b/source/viewer/viewer.js
index a964e0c..6003bd6 100644
--- a/source/viewer/viewer.js
+++ b/source/viewer/viewer.js
@@ -142,6 +142,9 @@ OV.Viewer = class
 
     ResizeRenderer (width, height)
     {
+        if (window.devicePixelRatio) {
+            this.renderer.setPixelRatio (window.devicePixelRatio);
+        }
         this.camera.aspect = width / height;
         this.camera.updateProjectionMatrix ();
         this.renderer.setSize (width, height);