Import Geant4 11.0.0 source tree

source/visualization/OpenGL/src/G4OpenGLStoredQtViewer.cc

@@ -29,8 +29,6 @@
 // Class G4OpenGLStoredQtViewer : a class derived from G4OpenGLQtViewer and
 //                                G4OpenGLStoredViewer.
 
-#ifdef G4VIS_BUILD_OPENGLQT_DRIVER
-
 #include "G4OpenGLStoredQtViewer.hh"
 
 #include "G4OpenGLStoredSceneHandler.hh"
@@ -103,6 +101,8 @@ void G4OpenGLStoredQtViewer::initializeGL () {
    // Set the component visible
   //   setVisible(true) ;
 
+  // Set jpg as default export format for Qt viewer
+  setExportImageFormat("jpg");
 }
 
 G4bool G4OpenGLStoredQtViewer::CompareForKernelVisit(G4ViewParameters& lastVP)
@@ -121,13 +121,15 @@ G4bool G4OpenGLStoredQtViewer::CompareForKernelVisit(G4ViewParameters& lastVP)
       (lastVP.IsCullingCovered ()   != fVP.IsCullingCovered ())   ||
       (lastVP.GetCBDAlgorithmNumber() !=
        fVP.GetCBDAlgorithmNumber())                               ||
+      // Note: Section and Cutaway can reveal back-facing faces. If
+      // backface culling is implemented, the image can look strange because
+      // the back-facing faces are not there. For the moment, we have disabled
+      // (commented out) backface culling (it seems not to affect performance -
+      // in fact, performance seems to improve), so there is no problem.
       (lastVP.IsSection ()          != fVP.IsSection ())          ||
-      // Section (DCUT) implemented locally.  But still need to visit
-      // kernel if status changes so that back plane culling can be
-      // switched.
-      (lastVP.IsCutaway ()          != fVP.IsCutaway ())          ||
-      // Cutaways implemented locally.  But still need to visit kernel
-      // if status changes so that back plane culling can be switched.
+      // Section (DCUT) is NOT implemented locally so we need to visit the kernel.
+      // (lastVP.IsCutaway ()          != fVP.IsCutaway ())          ||
+      // Cutaways are implemented locally so we do not need to visit the kernel.
       (lastVP.IsExplode ()          != fVP.IsExplode ())          ||
       (lastVP.GetNoOfSides ()       != fVP.GetNoOfSides ())       ||
       (lastVP.GetGlobalMarkerScale()    != fVP.GetGlobalMarkerScale())    ||
@@ -451,5 +453,3 @@ G4Colour& c,
 size_t poIndex) {
   c = getColorForPoIndex(poIndex);
 }
-
-#endif