Enabled antialiasing hint in ShaderEffectItem when doing multisampled drawing.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/shadereffectitem.cpp b/src/shadereffectitem.cpp
index 5bb906c..dbfe2a9 100644
--- a/src/shadereffectitem.cpp
+++ b/src/shadereffectitem.cpp
@@ -405,6 +405,10 @@ void ShaderEffectItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *
         checkViewportUpdateMode();
         painter->save();
         painter->beginNativePainting();
+
+        if (context->format().samples() > 1)
+            painter->setRenderHint(QPainter::Antialiasing);
+
         QMatrix4x4 combinedMatrix = QMatrix4x4(painter->transform());
         renderEffect(painter, combinedMatrix);
         painter->endNativePainting();