From 0c9dc5b4c6ed1b2acb9302c12e14acc3b4659b80 Mon Sep 17 00:00:00 2001
From: "github-actions[bot]" <github-actions[bot]@users.noreply.github.com>
Date: Fri, 21 Aug 2020 21:13:46 +0000
Subject: [PATCH] Fix crash in 3d when changing symbol properties

---
 src/3d/symbols/qgspoint3dsymbol_p.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/3d/symbols/qgspoint3dsymbol_p.cpp b/src/3d/symbols/qgspoint3dsymbol_p.cpp
index 7bc361c7bd59..0fc5658e351f 100644
--- a/src/3d/symbols/qgspoint3dsymbol_p.cpp
+++ b/src/3d/symbols/qgspoint3dsymbol_p.cpp
@@ -431,6 +431,9 @@ void QgsModelPoint3DSymbolHandler::addSceneEntities( const Qgs3DMapSettings &map
 
 void QgsModelPoint3DSymbolHandler::addMeshEntities( const Qgs3DMapSettings &map, const QVector<QVector3D> &positions, const QgsPoint3DSymbol &symbol, Qt3DCore::QEntity *parent, bool are_selected )
 {
+  if ( positions.empty() )
+    return;
+
   // build the default material
   Qt3DExtras::QPhongMaterial *mat = Qgs3DUtils::phongMaterial( symbol.material() );