X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FMain%2Frenderer.cxx;h=c952faed97b247241ffca1cad3f76f683b3afff1;hb=49030e700ba276d5cd6ffa4f4e661a266fa0105c;hp=b6a8c6f0761bc538e6668badd8d56689da3f5ef9;hpb=16a2bb0118b609a69843bdd0bcd0dc28e2f4be6d;p=flightgear.git

diff --git a/src/Main/renderer.cxx b/src/Main/renderer.cxx
index b6a8c6f07..c952faed9 100644
--- a/src/Main/renderer.cxx
+++ b/src/Main/renderer.cxx
@@ -18,56 +18,51 @@
 // You should have received a copy of the GNU General Public License
 // along with this program; if not, write to the Free Software
 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-//
-// $Id$
-
 
 #ifdef HAVE_CONFIG_H
 #  include <config.h>
 #endif
 
-#include <simgear/compiler.h>
-
 #ifdef HAVE_WINDOWS_H
 #  include <windows.h>
 #endif
 
+#include <simgear/compiler.h>
+
 #include <osg/ref_ptr>
 #include <osg/AlphaFunc>
 #include <osg/BlendFunc>
 #include <osg/Camera>
-#include <osg/CameraView>
 #include <osg/CullFace>
 #include <osg/Depth>
 #include <osg/Fog>
 #include <osg/Group>
+#include <osg/Hint>
 #include <osg/Light>
 #include <osg/LightModel>
 #include <osg/LightSource>
+#include <osg/Material>
 #include <osg/NodeCallback>
 #include <osg/Notify>
 #include <osg/PolygonMode>
 #include <osg/PolygonOffset>
-#include <osg/ShadeModel>
+#include <osg/Version>
 #include <osg/TexEnv>
 
-#include <osgUtil/SceneView>
-#include <osgUtil/UpdateVisitor>
-#include <osgUtil/IntersectVisitor>
+#include <osgUtil/LineSegmentIntersector>
 
 #include <osg/io_utils>
 #include <osgDB/WriteFile>
-#include <osgDB/ReadFile>
-#include <sstream>
 
 #include <simgear/math/SGMath.hxx>
 #include <simgear/screen/extensions.hxx>
 #include <simgear/scene/material/matlib.hxx>
 #include <simgear/scene/model/animation.hxx>
-#include <simgear/scene/model/model.hxx>
-#include <simgear/scene/model/modellib.hxx>
 #include <simgear/scene/model/placement.hxx>
+#include <simgear/scene/sky/sky.hxx>
 #include <simgear/scene/util/SGUpdateVisitor.hxx>
+#include <simgear/scene/util/RenderConstants.hxx>
+#include <simgear/scene/tgdb/GroundLightManager.hxx>
 #include <simgear/scene/tgdb/pt_lights.hxx>
 #include <simgear/props/props.hxx>
 #include <simgear/timing/sg_time.hxx>
@@ -79,7 +74,6 @@
 
 #include <simgear/environment/visual_enviro.hxx>
 
-#include <Scenery/tileentry.hxx>
 #include <Time/light.hxx>
 #include <Time/light.hxx>
 #include <Aircraft/aircraft.hxx>
@@ -95,10 +89,49 @@
 #include <GUI/new_gui.hxx>
 #include <Instrumentation/instrument_mgr.hxx>
 #include <Instrumentation/HUD/HUD.hxx>
+#include <Environment/precipitation_mgr.hxx>
 
+#include <Include/general.hxx>
 #include "splash.hxx"
 #include "renderer.hxx"
 #include "main.hxx"
+#include "CameraGroup.hxx"
+#include "ViewPartitionNode.hxx"
+
+// XXX Make this go away when OSG 2.2 is released.
+#if (FG_OSG_VERSION >= 21004)
+#define UPDATE_VISITOR_IN_VIEWER 1
+#endif
+
+using namespace osg;
+using namespace simgear;
+using namespace flightgear;
+
+class FGHintUpdateCallback : public osg::StateAttribute::Callback {
+public:
+  FGHintUpdateCallback(const char* configNode) :
+    mConfigNode(fgGetNode(configNode, true))
+  { }
+  virtual void operator()(osg::StateAttribute* stateAttribute,
+                          osg::NodeVisitor*)
+  {
+    assert(dynamic_cast<osg::Hint*>(stateAttribute));
+    osg::Hint* hint = static_cast<osg::Hint*>(stateAttribute);
+
+    const char* value = mConfigNode->getStringValue();
+    if (!value)
+      hint->setMode(GL_DONT_CARE);
+    else if (0 == strcmp(value, "nicest"))
+      hint->setMode(GL_NICEST);
+    else if (0 == strcmp(value, "fastest"))
+      hint->setMode(GL_FASTEST);
+    else
+      hint->setMode(GL_DONT_CARE);
+  }
+private:
+  SGSharedPtr<SGPropertyNode> mConfigNode;
+};
+
 
 class SGPuDrawable : public osg::Drawable {
 public:
@@ -125,10 +158,9 @@ public:
   { drawImplementation(*renderInfo.getState()); }
   void drawImplementation(osg::State& state) const
   {
-    state.pushStateSet(getStateSet());
-    state.apply();
     state.setActiveTextureUnit(0);
     state.setClientActiveTextureUnit(0);
+
     state.disableAllVertexArrays();
 
     glPushAttrib(GL_ALL_ATTRIB_BITS);
@@ -138,11 +170,6 @@ public:
 
     glPopClientAttrib();
     glPopAttrib();
-
-    state.popStateSet();
-    state.dirtyAllModes();
-    state.dirtyAllAttributes();
-    state.dirtyAllVertexArrays();
   }
 
   virtual osg::Object* cloneType() const { return new SGPuDrawable; }
@@ -174,8 +201,6 @@ public:
   { drawImplementation(*renderInfo.getState()); }
   void drawImplementation(osg::State& state) const
   {
-    state.pushStateSet(getStateSet());
-    state.apply();
     state.setActiveTextureUnit(0);
     state.setClientActiveTextureUnit(0);
     state.disableAllVertexArrays();
@@ -199,10 +224,6 @@ public:
     glPopClientAttrib();
     glPopAttrib();
 
-    state.popStateSet();
-    state.dirtyAllModes();
-    state.dirtyAllAttributes();
-    state.dirtyAllVertexArrays();
   }
 
   virtual osg::Object* cloneType() const { return new SGHUDAndPanelDrawable; }
@@ -342,7 +363,6 @@ public:
 // Sky structures
 SGSky *thesky;
 
-osg::ref_ptr<osgUtil::SceneView> sceneView = new osgUtil::SceneView;  // This SceneView is used by class FGJpegHttpd ( jpg-httpd.cxx )
 static osg::ref_ptr<osg::FrameStamp> mFrameStamp = new osg::FrameStamp;
 static osg::ref_ptr<SGUpdateVisitor> mUpdateVisitor= new SGUpdateVisitor;
 
@@ -350,14 +370,14 @@ static osg::ref_ptr<osg::Group> mRealRoot = new osg::Group;
 
 static osg::ref_ptr<osg::Group> mRoot = new osg::Group;
 
-static osg::ref_ptr<osg::CameraView> mCameraView = new osg::CameraView;
-static osg::ref_ptr<osg::Camera> mBackGroundCamera = new osg::Camera;
+static osg::ref_ptr<ViewPartitionNode> viewPartition = new ViewPartitionNode;
 
 FGRenderer::FGRenderer()
 {
 #ifdef FG_JPEG_SERVER
    jpgRenderFrame = FGRenderer::update;
 #endif
+   manipulator = new FGManipulator;
 }
 
 FGRenderer::~FGRenderer()
@@ -368,20 +388,29 @@ FGRenderer::~FGRenderer()
 }
 
 // Initialize various GL/view parameters
+// XXX This should be called "preinit" or something, as it initializes
+// critical parts of the scene graph in addition to the splash screen.
 void
 FGRenderer::splashinit( void ) {
-   // Add the splash screen node
-   mRealRoot->addChild(fgCreateSplashNode());
-   sceneView->setSceneData(mRealRoot.get());
-
-   sceneView->setDefaults(osgUtil::SceneView::COMPILE_GLOBJECTS_AT_INIT);
-   sceneView->setFrameStamp(mFrameStamp.get());
-   sceneView->setUpdateVisitor(mUpdateVisitor.get());
+    osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
+    mRealRoot = dynamic_cast<osg::Group*>(viewer->getSceneData());
+    mRealRoot->addChild(fgCreateSplashNode());
+    mFrameStamp = viewer->getFrameStamp();
+    // Scene doesn't seem to pass the frame stamp to the update
+    // visitor automatically.
+    mUpdateVisitor->setFrameStamp(mFrameStamp.get());
+#ifdef UPDATE_VISITOR_IN_VIEWER
+    viewer->setUpdateVisitor(mUpdateVisitor.get());
+#else
+    osgViewer::Scene* scene = viewer->getScene();
+    scene->setUpdateVisitor(mUpdateVisitor.get());
+#endif
 }
 
 void
-FGRenderer::init( void ) {
-
+FGRenderer::init( void )
+{
+    osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
     osg::initNotifyLevel();
 
     // The number of polygon-offset "units" to place between layers.  In
@@ -394,23 +423,9 @@ FGRenderer::init( void ) {
     if ( fgGetBool("/sim/startup/fullscreen") )
         fgOSFullScreen();
 
-    if ( (!strcmp(fgGetString("/sim/rendering/fog"), "disabled")) || 
-         (!fgGetBool("/sim/rendering/shading"))) {
-        // if fastest fog requested, or if flat shading force fastest
-        glHint ( GL_FOG_HINT, GL_FASTEST );
-    } else if ( !strcmp(fgGetString("/sim/rendering/fog"), "nicest") ) {
-        glHint ( GL_FOG_HINT, GL_DONT_CARE );
-    }
-
-    glHint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
-    glHint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
-    glHint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
-
-
-    sceneView->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
-    sceneView->getCamera()->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
-
-
+    viewer->getCamera()
+        ->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
+    
     osg::StateSet* stateSet = mRoot->getOrCreateStateSet();
 
     stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
@@ -434,32 +449,29 @@ FGRenderer::init( void ) {
     stateSet->setTextureAttribute(0, new osg::TexEnv);
     stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
 
-
-//     stateSet->setAttribute(new osg::CullFace(osg::CullFace::BACK));
-//     stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
-
-    // this is the topmost scenegraph node for osg
-    mBackGroundCamera->addChild(thesky->getPreRoot());
-    mBackGroundCamera->setClearMask(0);
-
-    GLbitfield inheritanceMask = osg::CullSettings::ALL_VARIABLES;
-    inheritanceMask &= ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE;
-    inheritanceMask &= ~osg::CullSettings::NEAR_FAR_RATIO;
-    inheritanceMask &= ~osg::CullSettings::CULLING_MODE;
-    mBackGroundCamera->setInheritanceMask(inheritanceMask);
-    mBackGroundCamera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
-    mBackGroundCamera->setCullingMode(osg::CullSettings::NO_CULLING);
-    mBackGroundCamera->setRenderOrder(osg::Camera::NESTED_RENDER);
-
-    stateSet = mBackGroundCamera->getOrCreateStateSet();
-    stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
+    osg::Hint* hint = new osg::Hint(GL_FOG_HINT, GL_DONT_CARE);
+    hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/fog"));
+    stateSet->setAttribute(hint);
+    hint = new osg::Hint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
+    hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/polygon-smooth"));
+    stateSet->setAttribute(hint);
+    hint = new osg::Hint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
+    hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/line-smooth"));
+    stateSet->setAttribute(hint);
+    hint = new osg::Hint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
+    hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/point-smooth"));
+    stateSet->setAttribute(hint);
+    hint = new osg::Hint(GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE);
+    hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/perspective-correction"));
+    stateSet->setAttribute(hint);
 
     osg::Group* sceneGroup = new osg::Group;
     sceneGroup->addChild(globals->get_scenery()->get_scene_graph());
-    sceneGroup->addChild(thesky->getCloudRoot());
+    sceneGroup->setNodeMask(~simgear::BACKGROUND_BIT);
+
+    //sceneGroup->addChild(thesky->getCloudRoot());
 
     stateSet = sceneGroup->getOrCreateStateSet();
-    stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
 
     // need to update the light on every frame
@@ -468,14 +480,12 @@ FGRenderer::init( void ) {
     // relative because of CameraView being just a clever transform node
     lightSource->setReferenceFrame(osg::LightSource::RELATIVE_RF);
     lightSource->setLocalStateSetModes(osg::StateAttribute::ON);
-    mRoot->addChild(lightSource);
-
-    lightSource->addChild(mBackGroundCamera.get());
+    
     lightSource->addChild(sceneGroup);
-
+    lightSource->addChild(thesky->getPreRoot());
+    mRoot->addChild(lightSource);
 
     stateSet = globals->get_scenery()->get_scene_graph()->getOrCreateStateSet();
-    stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
     stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
     stateSet->setMode(GL_LIGHTING, osg::StateAttribute::ON);
     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
@@ -498,29 +508,21 @@ FGRenderer::init( void ) {
     stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
 
     // plug in the GUI
-    osg::Camera* guiCamera = new osg::Camera;
-    guiCamera->setRenderOrder(osg::Camera::POST_RENDER, 100);
-    guiCamera->setClearMask(0);
-    inheritanceMask = osg::CullSettings::ALL_VARIABLES;
-    inheritanceMask &= ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE;
-    inheritanceMask &= ~osg::CullSettings::CULLING_MODE;
-    guiCamera->setInheritanceMask(inheritanceMask);
-    guiCamera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
-    guiCamera->setCullingMode(osg::CullSettings::NO_CULLING);
-    osg::Geode* geode = new osg::Geode;
-    geode->addDrawable(new SGPuDrawable);
-    geode->addDrawable(new SGHUDAndPanelDrawable);
-    guiCamera->addChild(geode);
-
-    mCameraView->addChild(mRoot.get());
-
+    osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
+    if (guiCamera) {
+        osg::Geode* geode = new osg::Geode;
+        geode->addDrawable(new SGPuDrawable);
+        geode->addDrawable(new SGHUDAndPanelDrawable);
+        guiCamera->addChild(geode);
+    }
     osg::Switch* sw = new osg::Switch;
     sw->setUpdateCallback(new FGScenerySwitchCallback);
-    sw->addChild(mCameraView.get());
+    sw->addChild(mRoot.get());
+    viewPartition->addChild(sw);
+    viewPartition->addChild(thesky->getCloudRoot());
 
-    mRealRoot->addChild(sw);
+    mRealRoot->addChild(viewPartition.get());
     mRealRoot->addChild(FGCreateRedoutNode());
-    mRealRoot->addChild(guiCamera);
 }
 
 
@@ -529,18 +531,13 @@ void
 FGRenderer::update( bool refresh_camera_settings ) {
     bool scenery_loaded = fgGetBool("sim/sceneryloaded")
                           || fgGetBool("sim/sceneryloaded-override");
-
+    osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
     if ( idle_state < 1000 || !scenery_loaded ) {
         fgSetDouble("/sim/startup/splash-alpha", 1.0);
 
         // Keep resetting sim time while the sim is initializing
-        globals->set_sim_time_sec( 0.0 );
-
         // the splash screen is now in the scenegraph
-        sceneView->update();
-        sceneView->cull();
-        sceneView->draw();
-
+        globals->set_sim_time_sec( 0.0 );
         return;
     }
 
@@ -582,22 +579,18 @@ FGRenderer::update( bool refresh_camera_settings ) {
         // update view port
         resize( fgGetInt("/sim/startup/xsize"),
                 fgGetInt("/sim/startup/ysize") );
-
-        SGVec3d position = current__view->getViewPosition();
-        SGQuatd attitude = current__view->getViewOrientation();
-        SGVec3d osgPosition = attitude.transform(-position);
-        mCameraView->setPosition(osgPosition.osg());
-        mCameraView->setAttitude(inverse(attitude).osg());
     }
+    osg::Camera *camera = viewer->getCamera();
 
     if ( skyblend ) {
+	
         if ( fgGetBool("/sim/rendering/textures") ) {
             SGVec4f clearColor(l->adj_fog_color());
-            sceneView->getCamera()->setClearColor(clearColor.osg());
+            camera->setClearColor(clearColor.osg());
         }
     } else {
         SGVec4f clearColor(l->sky_color());
-        sceneView->getCamera()->setClearColor(clearColor.osg());
+        camera->setClearColor(clearColor.osg());
     }
 
     // update fog params if visibility has changed
@@ -709,23 +702,6 @@ FGRenderer::update( bool refresh_camera_settings ) {
     }
 
 //     sgEnviro.setLight(l->adj_fog_color());
-
-    // texture parameters
-    glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST );
-
-    double agl = current__view->getAltitudeASL_ft()*SG_FEET_TO_METER
-      - current__view->getSGLocation()->get_cur_elev_m();
-
-    float scene_nearplane, scene_farplane;
-    if ( agl > 10.0 ) {
-        scene_nearplane = 10.0f;
-        scene_farplane = 120000.0f;
-    } else {
-        scene_nearplane = groundlevel_nearplane->getDoubleValue();
-        scene_farplane = 120000.0f;
-    }
-    setNearFar( scene_nearplane, scene_farplane );
-
 //     sgEnviro.startOfFrame(current__view->get_view_pos(), 
 //         current__view->get_world_up(),
 //         current__view->getLongitude_deg(),
@@ -740,24 +716,12 @@ FGRenderer::update( bool refresh_camera_settings ) {
 //         fgGetDouble("/velocities/airspeed-kt", 0.0)
 //                        * cos( fgGetDouble("/orientation/pitch-deg", 0.0)
 //                                * SGD_DEGREES_TO_RADIANS);
-       // TODO:find the real view speed, not the AC one
-//     sgEnviro.drawPrecipitation(
-//         fgGetDouble("/environment/metar/rain-norm", 0.0),
-//         fgGetDouble("/environment/metar/snow-norm", 0.0),
-//         fgGetDouble("/environment/metar/hail-norm", 0.0),
-//         current__view->getPitch_deg() + current__view->getPitchOffset_deg(),
-//         current__view->getRoll_deg() + current__view->getRollOffset_deg(),
-//         - current__view->getHeadingOffset_deg(),
-//                current_view_origin_airspeed_horiz_kt
-//                );
 
     // OSGFIXME
 //     if( is_internal )
 //         shadows->endOfFrame();
 
     // need to call the update visitor once
-    mFrameStamp->setReferenceTime(globals->get_sim_time_sec());
-    mFrameStamp->setFrameNumber(1+mFrameStamp->getFrameNumber());
     mFrameStamp->setCalendarTime(*globals->get_time_params()->getGmt());
     mUpdateVisitor->setViewData(current__view->getViewPosition(),
                                 current__view->getViewOrientation());
@@ -767,15 +731,18 @@ FGRenderer::update( bool refresh_camera_settings ) {
                              l->adj_fog_color(),
                              l->get_sun_angle()*SGD_RADIANS_TO_DEGREES);
     mUpdateVisitor->setVisibility(actual_visibility);
-
-    if (fgGetBool("/sim/panel-hotspots"))
-      sceneView->setCullMask(sceneView->getCullMask()|SG_NODEMASK_PICK_BIT);
-    else
-      sceneView->setCullMask(sceneView->getCullMask()&(~SG_NODEMASK_PICK_BIT));
-
-    sceneView->update();
-    sceneView->cull();
-    sceneView->draw();
+    viewPartition->setVisibility(actual_visibility);
+    simgear::GroundLightManager::instance()->update(mUpdateVisitor.get());
+    bool hotspots = fgGetBool("/sim/panel-hotspots");
+    osg::Node::NodeMask cullMask = ~simgear::LIGHTS_BITS & ~simgear::PICK_BIT;
+    cullMask |= simgear::GroundLightManager::instance()
+        ->getLightNodeMask(mUpdateVisitor.get());
+    if (hotspots)
+        cullMask |= simgear::PICK_BIT;
+    camera->setCullMask(cullMask);
+    // XXX
+    for (int i = 0; i < viewer->getNumSlaves(); ++i)
+        viewer->getSlave(i)._camera->setCullMask(cullMask);
 }
 
 
@@ -794,8 +761,6 @@ FGRenderer::resize( int width, int height ) {
         view_h = height;
     }
 
-    sceneView->getViewport()->setViewport(0, height - view_h, width, view_h);
-
     static int lastwidth = 0;
     static int lastheight = 0;
     if (width != lastwidth)
@@ -803,8 +768,6 @@ FGRenderer::resize( int width, int height ) {
     if (height != lastheight)
         fgSetInt("/sim/startup/ysize", lastheight = height);
 
-    guiInitMouse(width, height);
-
     // for all views
     FGViewMgr *viewmgr = globals->get_viewmgr();
     if (viewmgr) {
@@ -812,214 +775,80 @@ FGRenderer::resize( int width, int height ) {
         viewmgr->get_view(i)->
           set_aspect_ratio((float)view_h / (float)width);
       }
-
-      setFOV( viewmgr->get_current_view()->get_h_fov(),
-              viewmgr->get_current_view()->get_v_fov() );
     }
 }
 
-
-// These are wrapper functions around ssgSetNearFar() and ssgSetFOV()
-// which will post process and rewrite the resulting frustum if we
-// want to do asymmetric view frustums.
-
-static void fgHackFrustum() {
-
-    // specify a percent of the configured view frustum to actually
-    // display.  This is a bit of a hack to achieve asymmetric view
-    // frustums.  For instance, if you want to display two monitors
-    // side by side, you could specify each with a double fov, a 0.5
-    // aspect ratio multiplier, and then the left side monitor would
-    // have a left_pct = 0.0, a right_pct = 0.5, a bottom_pct = 0.0,
-    // and a top_pct = 1.0.  The right side monitor would have a
-    // left_pct = 0.5 and a right_pct = 1.0.
-
-    static SGPropertyNode *left_pct
-        = fgGetNode("/sim/current-view/frustum-left-pct");
-    static SGPropertyNode *right_pct
-        = fgGetNode("/sim/current-view/frustum-right-pct");
-    static SGPropertyNode *bottom_pct
-        = fgGetNode("/sim/current-view/frustum-bottom-pct");
-    static SGPropertyNode *top_pct
-        = fgGetNode("/sim/current-view/frustum-top-pct");
-
-    double left, right;
-    double bottom, top;
-    double zNear, zFar;
-    sceneView->getProjectionMatrixAsFrustum(left, right, bottom, top, zNear, zFar);
-    // cout << " l = " << f->getLeft()
-    //      << " r = " << f->getRight()
-    //      << " b = " << f->getBot()
-    //      << " t = " << f->getTop()
-    //      << " n = " << f->getNear()
-    //      << " f = " << f->getFar()
-    //      << endl;
-
-    double width = right - left;
-    double height = top - bottom;
-
-    double l, r, t, b;
-
-    if ( left_pct != NULL ) {
-        l = left + width * left_pct->getDoubleValue();
-    } else {
-        l = left;
-    }
-
-    if ( right_pct != NULL ) {
-        r = left + width * right_pct->getDoubleValue();
-    } else {
-        r = right;
-    }
-
-    if ( bottom_pct != NULL ) {
-        b = bottom + height * bottom_pct->getDoubleValue();
-    } else {
-        b = bottom;
-    }
-
-    if ( top_pct != NULL ) {
-        t = bottom + height * top_pct->getDoubleValue();
-    } else {
-        t = top;
+void FGRenderer::setCameraParameters(float vfov, float aspectRatio,
+                                     float zNear, float zFar)
+{
+    zNear = .1;
+    osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
+    viewer->getCamera()->setProjectionMatrixAsPerspective(vfov,
+                                                          1.0f / aspectRatio,
+                                                          zNear, zFar);
+    
+}
+bool
+FGRenderer::pick(std::vector<SGSceneryPick>& pickList,
+                 const osgGA::GUIEventAdapter* ea)
+{
+    osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
+    // wipe out the return ...
+    pickList.clear();
+    typedef osgUtil::LineSegmentIntersector::Intersections Intersections;
+    Intersections intersections;
+
+    if (!computeIntersections(CameraGroup::getDefault(), ea, intersections))
+        return false;
+    for (Intersections::iterator hit = intersections.begin(),
+             e = intersections.end();
+         hit != e;
+         ++hit) {
+        const osg::NodePath& np = hit->nodePath;
+        osg::NodePath::const_reverse_iterator npi;
+        for (npi = np.rbegin(); npi != np.rend(); ++npi) {
+            SGSceneUserData* ud = SGSceneUserData::getSceneUserData(*npi);
+            if (!ud)
+                continue;
+            for (unsigned i = 0; i < ud->getNumPickCallbacks(); ++i) {
+                SGPickCallback* pickCallback = ud->getPickCallback(i);
+                if (!pickCallback)
+                    continue;
+                SGSceneryPick sceneryPick;
+                sceneryPick.info.local = SGVec3d(hit->getLocalIntersectPoint());
+                sceneryPick.info.wgs84 = SGVec3d(hit->getWorldIntersectPoint());
+                sceneryPick.callback = pickCallback;
+                pickList.push_back(sceneryPick);
+            }
+        }
     }
-
-    sceneView->setProjectionMatrixAsFrustum(l, r, b, t, zNear, zFar);
+    return !pickList.empty();
 }
 
-
-// we need some static storage space for these values.  However, we
-// can't store it in a renderer class object because the functions
-// that manipulate these are static.  They are static so they can
-// interface to the display callback system.  There's probably a
-// better way, there has to be a better way, but I'm not seeing it
-// right now.
-static float fov_width = 55.0;
-static float fov_height = 42.0;
-static float fov_near = 1.0;
-static float fov_far = 1000.0;
-
-
-/** FlightGear code should use this routine to set the FOV rather than
- *  calling the ssg routine directly
- */
-void FGRenderer::setFOV( float w, float h ) {
-    fov_width = w;
-    fov_height = h;
-
-    sceneView->setProjectionMatrixAsPerspective(fov_height,
-                                                fov_width/fov_height,
-                                                fov_near, fov_far);
-    // fully specify the view frustum before hacking it (so we don't
-    // accumulate hacked effects
-    fgHackFrustum();
-//     sgEnviro.setFOV( w, h );
+void
+FGRenderer::addCamera(osg::Camera* camera, bool useSceneData)
+{
+    mRealRoot->addChild(camera);
 }
 
-
-/** FlightGear code should use this routine to set the Near/Far clip
- *  planes rather than calling the ssg routine directly
- */
-void FGRenderer::setNearFar( float n, float f ) {
-// OSGFIXME: we have currently too much z-buffer fights
-n = 0.1;
-    fov_near = n;
-    fov_far = f;
-
-    sceneView->setProjectionMatrixAsPerspective(fov_height,
-                                                fov_width/fov_height,
-                                                fov_near, fov_far);
-
-    // fully specify the view frustum before hacking it (so we don't
-    // accumulate hacked effects
-    fgHackFrustum();
+bool
+fgDumpSceneGraphToFile(const char* filename)
+{
+    return osgDB::writeNodeFile(*mRealRoot.get(), filename);
 }
 
 bool
-FGRenderer::pick( unsigned x, unsigned y,
-                  std::vector<SGSceneryPick>& pickList )
+fgDumpTerrainBranchToFile(const char* filename)
 {
-  // wipe out the return ...
-  pickList.resize(0);
-
-  // we can get called early ...
-  if (!sceneView.valid())
-    return false;
-
-  osg::Node* sceneData = globals->get_scenery()->get_scene_graph();
-  if (!sceneData)
-    return false;
-  osg::Viewport* viewport = sceneView->getViewport();
-  if (!viewport)
-    return false;
-
-  // don't know why, but the update has partly happened somehow,
-  // so update the scenery part of the viewer
-  FGViewer *current_view = globals->get_current_view();
-  // Force update of center dependent values ...
-  current_view->set_dirty();
-  SGVec3d position = current_view->getViewPosition();
-  SGQuatd attitude = current_view->getViewOrientation();
-  SGVec3d osgPosition = attitude.transform(-position);
-  mCameraView->setPosition(osgPosition.osg());
-  mCameraView->setAttitude(inverse(attitude).osg());
-
-  osg::Matrix projection(sceneView->getProjectionMatrix());
-  osg::Matrix modelview(sceneView->getViewMatrix());
-
-  osg::NodePathList nodePath = sceneData->getParentalNodePaths();
-  // modify the view matrix so that it accounts for this nodePath's
-  // accumulated transform
-  if (!nodePath.empty())
-    modelview.preMult(computeLocalToWorld(nodePath.front()));
-
-  // swap the y values ...
-  y = viewport->height() - y;
-  // set up the pick visitor
-  osgUtil::PickVisitor pickVisitor(viewport, projection, modelview, x, y);
-  sceneData->accept(pickVisitor);
-  if (!pickVisitor.hits())
-    return false;
-
-  // collect all interaction callbacks on the pick ray.
-  // They get stored in the pickCallbacks list where they are sorted back
-  // to front and croasest to finest wrt the scenery node they are attached to
-  osgUtil::PickVisitor::LineSegmentHitListMap::const_iterator mi;
-  for (mi = pickVisitor.getSegHitList().begin();
-       mi != pickVisitor.getSegHitList().end();
-       ++mi) {
-    osgUtil::IntersectVisitor::HitList::const_iterator hi;
-    for (hi = mi->second.begin(); hi != mi->second.end(); ++hi) {
-      // ok, go back the nodes and ask for intersection callbacks,
-      // execute them in top down order
-      const osg::NodePath& np = hi->getNodePath();
-      osg::NodePath::const_reverse_iterator npi;
-      for (npi = np.rbegin(); npi != np.rend(); ++npi) {
-        SGSceneUserData* ud = SGSceneUserData::getSceneUserData(*npi);
-        if (!ud)
-          continue;
-        for (unsigned i = 0; i < ud->getNumPickCallbacks(); ++i) {
-          SGPickCallback* pickCallback = ud->getPickCallback(i);
-          if (!pickCallback)
-            continue;
-          SGSceneryPick sceneryPick;
-          /// note that this is done totally in doubles instead of
-          /// just using getWorldIntersectionPoint
-          osg::Vec3d localPt = hi->getLocalIntersectPoint();
-          sceneryPick.info.local = SGVec3d(localPt);
-          if (hi->getMatrix())
-            sceneryPick.info.wgs84 = SGVec3d(localPt*(*hi->getMatrix()));
-          else
-            sceneryPick.info.wgs84 = SGVec3d(localPt);
-          sceneryPick.callback = pickCallback;
-          pickList.push_back(sceneryPick);
-        }
-      }
-    }
-  }
-
-  return !pickList.empty();
+    return osgDB::writeNodeFile( *globals->get_scenery()->get_terrain_branch(),
+                                 filename );
 }
 
+// For debugging
+bool
+fgDumpNodeToFile(osg::Node* node, const char* filename)
+{
+    return osgDB::writeNodeFile(*node, filename);
+}
 // end of renderer.cxx