From f4f9e27e09558f58d6183d62ced2469c8c451d58 Mon Sep 17 00:00:00 2001
From: vsr <vsr@opencascade.com>
Date: Mon, 19 Apr 2021 12:36:45 +0300
Subject: [PATCH] bos #23995 Allow propagation to VTK via
 SALOME_ACTOR_DELEGATE_TO_VTK env variable

---
 src/VTKViewer/VTKViewer_GeometryFilter.cxx | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/VTKViewer/VTKViewer_GeometryFilter.cxx b/src/VTKViewer/VTKViewer_GeometryFilter.cxx
index c85c84c22..ab252568d 100644
--- a/src/VTKViewer/VTKViewer_GeometryFilter.cxx
+++ b/src/VTKViewer/VTKViewer_GeometryFilter.cxx
@@ -92,6 +92,8 @@
 #endif
 ///////////////////////////////////////////////////////////////////////////////////////////////
 
+#include "Qtx.h"
+
 vtkStandardNewMacro(VTKViewer_GeometryFilter)
 
 VTKViewer_GeometryFilter
@@ -102,7 +104,15 @@ VTKViewer_GeometryFilter
   myAppendCoincident3D(0),
   myMaxArcAngle(2),
   myIsBuildArc(false)
-{}
+{
+  static int forceDelegateToVtk = -1;
+  if ( forceDelegateToVtk < 0 )
+  {
+    QString env = Qtx::getenv( "SALOME_ACTOR_DELEGATE_TO_VTK" );
+    forceDelegateToVtk = (int)(env == "1");
+  }
+  delegateToVtk = forceDelegateToVtk > 0;
+}
 
 
 VTKViewer_GeometryFilter
-- 
2.39.2