Fix issue 10826.

csukuangfj · csukuangfj · commit 6205981235b5 · 2018-02-11T16:01:21.000+08:00
diff --git a/modules/viz/src/widget.cpp b/modules/viz/src/widget.cpp
@@ -202,6 +202,8 @@ double cv::viz::Widget::getRenderingProperty(int property) const
 #else
         case IMMEDIATE_RENDERING: std::cerr << "this property has no effect" << std::endl; break;
 #endif
+        case AMBIENT: value = actor->GetProperty()->GetAmbient(); break;
+        case LIGHTING: value = actor->GetProperty()->GetLighting(); break;
         case FONT_SIZE:
         {
             vtkTextActor* text_actor = vtkTextActor::SafeDownCast(actor);

Original file line number	Diff line number	Diff line change
`@@ -202,6 +202,8 @@ double cv::viz::Widget::getRenderingProperty(int property) const`
`202`	`202`	`#else`
`203`	`203`	`case IMMEDIATE_RENDERING: std::cerr << "this property has no effect" << std::endl; break;`
`204`	`204`	`#endif`
	`205`	`+ case AMBIENT: value = actor->GetProperty()->GetAmbient(); break;`
	`206`	`+ case LIGHTING: value = actor->GetProperty()->GetLighting(); break;`
`205`	`207`	`case FONT_SIZE:`
`206`	`208`	`{`
`207`	`209`	`vtkTextActor* text_actor = vtkTextActor::SafeDownCast(actor);`