From aa353569b31baa4052ba57893839eeaf2f839552 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Sat, 23 Dec 2017 18:59:27 +0100
Subject: [PATCH] enable anti-aliasing for Coin's offscreen renderer

---
 src/Gui/View3DInventorViewer.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Gui/View3DInventorViewer.cpp b/src/Gui/View3DInventorViewer.cpp
index dee8c7de2f..6f987e3bb2 100644
--- a/src/Gui/View3DInventorViewer.cpp
+++ b/src/Gui/View3DInventorViewer.cpp
@@ -1022,6 +1022,8 @@ void View3DInventorViewer::savePicture(int w, int h, const QColor& bg, QImage& i
         else {
             SoFCOffscreenRenderer& renderer = SoFCOffscreenRenderer::instance();
             renderer.setViewportRegion(vp);
+            renderer.getGLRenderAction()->setSmoothing(true);
+            renderer.getGLRenderAction()->setNumPasses(4);
             if (bgColor.isValid())
                 renderer.setBackgroundColor(SbColor(bgColor.redF(), bgColor.greenF(), bgColor.blueF()));
             if (!renderer.render(root))