Moved the managing of frame stamp from osgProducer::Viewer into

osgProducer::OsgCamaraGroup.

Added setting of trackball in osgcameragroup so its starts in the
correct place for different models.

src/osgProducer/OsgCameraGroup.cpp

@@ -126,6 +126,10 @@ void OsgCameraGroup::_init()
 
     _initialized = false;
 
+    // set up the time and frame counter.
+    _frameNumber = 0;
+    _start_tick = _timer.tick();
+
     if (!_frameStamp) _frameStamp = new osg::FrameStamp;
 
     // set up the maximum number of graphics contexts, before loading the scene graph
@@ -133,6 +137,7 @@ void OsgCameraGroup::_init()
     osg::DisplaySettings::instance()->setMaxNumberOfGraphicsContexts( getNumberOfCameras() );
     
     _applicationUsage = osg::ApplicationUsage::instance();
+
 }
 
 void OsgCameraGroup::setSceneData( osg::Node *scene ) 
@@ -404,12 +409,21 @@ const osg::Matrix OsgCameraGroup::getViewMatrix() const
     return matrix;
 }
 
+void OsgCameraGroup::sync()
+{
+    CameraGroup::sync();
+
+    // set the frame stamp for the new frame.
+    double time_since_start = _timer.delta_s(_start_tick,_timer.tick());
+    _frameStamp->setFrameNumber(_frameNumber++);
+    _frameStamp->setReferenceTime(time_since_start);
+}        
+
 void OsgCameraGroup::frame()
 {
     osg::Node* node = getTopMostSceneData();
     if (node) node->getBound();
 
     CameraGroup::frame();
-    _frameStamp->setFrameNumber( _frameStamp->getFrameNumber() + 1 );
 }
 

src/osgProducer/Viewer.cpp

@@ -125,7 +125,6 @@ private:
 //
 Viewer::Viewer():
     _done(0),
-    _frameNumber(0),
     _kbmcb(0),
     _recordingAnimationPath(false)
 {
@@ -134,7 +133,6 @@ Viewer::Viewer():
 Viewer::Viewer(Producer::CameraConfig *cfg):
     OsgCameraGroup(cfg),
     _done(false),
-    _frameNumber(0),
     _kbmcb(0),
     _recordingAnimationPath(false)
 {
@@ -143,7 +141,6 @@ Viewer::Viewer(Producer::CameraConfig *cfg):
 Viewer::Viewer(const std::string& configFile):
     OsgCameraGroup(configFile),
     _done(false),
-    _frameNumber(0),
     _kbmcb(0),
     _recordingAnimationPath(false)
 {
@@ -152,7 +149,6 @@ Viewer::Viewer(const std::string& configFile):
 Viewer::Viewer(osg::ArgumentParser& arguments):
     OsgCameraGroup(arguments),
     _done(false),
-    _frameNumber(0),
     _kbmcb(0),
     _recordingAnimationPath(false)
 {
@@ -187,9 +183,6 @@ void Viewer::setUpViewer(unsigned int options)
                                    (new Producer::KeyboardMouse(ia)) : 
                                    (new Producer::KeyboardMouse(getCamera(0)->getRenderSurface()));
 
-    // set up the time and frame counter.
-    _frameNumber = 0;
-    _start_tick = _timer.tick();
 
     // set the keyboard mouse callback to catch the events from the windows.
     if (!_kbmcb)
@@ -338,15 +331,6 @@ bool Viewer::realize()
     return _realized;
 }
 
-void Viewer::sync()
-{
-    OsgCameraGroup::sync();
-
-    // set the frame stamp for the new frame.
-    double time_since_start = _timer.delta_s(_start_tick,_timer.tick());
-    _frameStamp->setFrameNumber(_frameNumber++);
-    _frameStamp->setReferenceTime(time_since_start);
-}        
 
 void Viewer::update()
 {