From 7e48bee48fbef40e281ffb3f68aa82dcedf7e515 Mon Sep 17 00:00:00 2001
From: mnaumov <mnaumov@amazon.com>
Date: Mon, 19 Apr 2021 18:24:23 -0700
Subject: [PATCH] Fixing thumbnail pixelation

---
 .../AzToolsFramework/Thumbnails/ThumbnailWidget.cpp           | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Code/Framework/AzToolsFramework/AzToolsFramework/Thumbnails/ThumbnailWidget.cpp b/Code/Framework/AzToolsFramework/AzToolsFramework/Thumbnails/ThumbnailWidget.cpp
index f2b81fdb98..1aefa6f189 100644
--- a/Code/Framework/AzToolsFramework/AzToolsFramework/Thumbnails/ThumbnailWidget.cpp
+++ b/Code/Framework/AzToolsFramework/AzToolsFramework/Thumbnails/ThumbnailWidget.cpp
@@ -79,7 +79,9 @@ namespace AzToolsFramework
                 int realHeight = qMin(aznumeric_cast<int>(originalWidth /aspectRatio), originalHeight);
                 int realWidth = aznumeric_cast<int>(realHeight * aspectRatio);
                 int x = (originalWidth - realWidth) / 2;
-                painter.drawPixmap(QRect(x, 0, realHeight, realWidth), pixmap);
+                // pixmap needs to be manually scaled to produce smoother result and avoid looking pixelated
+                // using painter.setRenderHint(QPainter::SmoothPixmapTransform); does not seem to work
+                painter.drawPixmap(QPoint(x, 0), pixmap.scaled(realWidth, realHeight, Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
             }
             QWidget::paintEvent(event);
         }