From 069dd8a068263f6b0cfce647d11637baaf48b745 Mon Sep 17 00:00:00 2001
From: Anatoly Baksheev <no@email>
Date: Sat, 8 Feb 2014 16:11:20 +0400
Subject: [PATCH] default meshlab background

---
 modules/viz/src/vizimpl.cpp       | 3 +++
 modules/viz/test/tests_simple.cpp | 1 +
 2 files changed, 4 insertions(+)

diff --git a/modules/viz/src/vizimpl.cpp b/modules/viz/src/vizimpl.cpp
index 5fa49e2f9..cf7a25120 100644
--- a/modules/viz/src/vizimpl.cpp
+++ b/modules/viz/src/vizimpl.cpp
@@ -68,6 +68,8 @@ cv::viz::Viz3d::VizImpl::VizImpl(const String &name) : spin_once_state_(false),
     timer_callback_ = vtkSmartPointer<TimerCallback>::New();
     exit_callback_ = vtkSmartPointer<ExitCallback>::New();
     exit_callback_->viz = this;
+
+    setBackgroundMeshLab();
 }
 
 /////////////////////////////////////////////////////////////////////////////////////////////
@@ -114,6 +116,7 @@ void cv::viz::Viz3d::VizImpl::recreateRenderWindow()
     Vec2i window_size(window_->GetSize());
     int fullscreen = window_->GetFullScreen();
 
+    window_->Finalize();
     window_ = vtkSmartPointer<vtkRenderWindow>::New();
     if (window_position_[0] != std::numeric_limits<int>::min()) //also workaround
         window_->SetPosition(window_position_.val);
diff --git a/modules/viz/test/tests_simple.cpp b/modules/viz/test/tests_simple.cpp
index c595affba..4edb324f4 100644
--- a/modules/viz/test/tests_simple.cpp
+++ b/modules/viz/test/tests_simple.cpp
@@ -52,6 +52,7 @@ TEST(Viz, show_cloud_bluberry)
     Affine3d pose = Affine3d().rotate(Vec3d(0, 0.8, 0));
 
     Viz3d viz("show_cloud_bluberry");
+    viz.setBackgroundColor(Color::black());
     viz.showWidget("coosys", WCoordinateSystem());
     viz.showWidget("dragon", WCloud(dragon_cloud, Color::bluberry()), pose);