Fix crash when using older 3d line symbols

qgis · Aug 3, 2020 · 4a03d3c · 4a03d3c
1 parent 88b3f43
commit 4a03d3c
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/src/3d/symbols/qgsline3dsymbol_p.cpp b/src/3d/symbols/qgsline3dsymbol_p.cpp
@@ -28,6 +28,7 @@
 #include "qgsmultilinestring.h"
 #include "qgsmultipolygon.h"
 #include "qgsgeos.h"
+#include "qgssimplelinematerialsettings.h"
 
 #include "qgsphongtexturedmaterialsettings.h"
 
@@ -398,6 +399,12 @@ void QgsThickLine3DSymbolHandler::makeEntity( Qt3DCore::QEntity *parent, const Q
   materialContext.setIsSelected( selected );
   materialContext.setSelectionColor( context.map().selectionColor() );
   Qt3DRender::QMaterial *mat = mSymbol.material()->toMaterial( QgsMaterialSettingsRenderingTechnique::Lines, materialContext );
+  if ( !mat )
+  {
+    QgsSimpleLineMaterialSettings defaultMaterial;
+    mat = defaultMaterial.toMaterial( QgsMaterialSettingsRenderingTechnique::Lines, materialContext );
+  }
+
   if ( QgsLineMaterial *lineMaterial = dynamic_cast< QgsLineMaterial * >( mat ) )
     lineMaterial->setLineWidth( mSymbol.width() );