From 1703f33eb7775c2104940ee21f55edf7fe19ed9e Mon Sep 17 00:00:00 2001
From: Magne Sjaastad <magne.sjaastad@ceetronsolutions.com>
Date: Wed, 24 Jan 2024 07:01:00 +0100
Subject: [PATCH] Set attribute to share OpenGL contexts

Setting this attribute will make sure OpenGL resources are alive when the parent widget is changed during layout changes like full screen view or changing docking configuration.
---
 ApplicationExeCode/RiaMain.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/ApplicationExeCode/RiaMain.cpp b/ApplicationExeCode/RiaMain.cpp
index aad55a4336..700114d1cc 100644
--- a/ApplicationExeCode/RiaMain.cpp
+++ b/ApplicationExeCode/RiaMain.cpp
@@ -77,6 +77,12 @@ int main( int argc, char* argv[] )
     }
 #endif
 
+    // The Qt::AA_ShareOpenGLContexts setting is needed when we have multiple viz widgets in flight
+    // and we have a setup where these widgets belong to different top-level windows, or end up
+    // belonging to different top-level windows through re-parenting.
+    // See test application QtTestBenchOpenGLWidget
+    QApplication::setAttribute( Qt::AA_ShareOpenGLContexts );
+
     // Create feature manager before the application object is created
     RiaMainTools::initializeSingletons();