src/Main/renderer.cxx

   1 // renderer.cxx -- top level sim routines
   2 //
   3 // Written by Curtis Olson, started May 1997.
   4 // This file contains parts of main.cxx prior to october 2004
   5 //
   6 // Copyright (C) 1997 - 2002  Curtis L. Olson  - http://www.flightgear.org/~curt
   7 //
   8 // This program is free software; you can redistribute it and/or
   9 // modify it under the terms of the GNU General Public License as
  10 // published by the Free Software Foundation; either version 2 of the
  11 // License, or (at your option) any later version.
  12 //
  13 // This program is distributed in the hope that it will be useful, but
  14 // WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 // General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the Free Software
  20 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  21 //
  22 // $Id$
  23
  24
  25 #ifdef HAVE_CONFIG_H
  26 #  include <config.h>
  27 #endif
  28
  29 #include <simgear/compiler.h>
  30
  31 #ifdef HAVE_WINDOWS_H
  32 #  include <windows.h>
  33 #endif
  34
  35 #include <osg/ref_ptr>
  36 #include <osg/AlphaFunc>
  37 #include <osg/BlendFunc>
  38 #include <osg/Camera>
  39 #include <osg/CameraView>
  40 #include <osg/CullFace>
  41 #include <osg/Depth>
  42 #include <osg/Fog>
  43 #include <osg/Group>
  44 #include <osg/Light>
  45 #include <osg/LightModel>
  46 #include <osg/LightSource>
  47 #include <osg/NodeCallback>
  48 #include <osg/Notify>
  49 #include <osg/PolygonMode>
  50 #include <osg/PolygonOffset>
  51 #include <osg/ShadeModel>
  52 #include <osg/TexEnv>
  53
  54 #include <osgUtil/SceneView>
  55 #include <osgUtil/UpdateVisitor>
  56 #include <osgUtil/IntersectVisitor>
  57
  58 #include <osg/io_utils>
  59 #include <osgDB/WriteFile>
  60 #include <osgDB/ReadFile>
  61 #include <sstream>
  62
  63 #include <simgear/math/SGMath.hxx>
  64 #include <simgear/screen/extensions.hxx>
  65 #include <simgear/scene/material/matlib.hxx>
  66 #include <simgear/scene/model/animation.hxx>
  67 #include <simgear/scene/model/model.hxx>
  68 #include <simgear/scene/model/modellib.hxx>
  69 #include <simgear/scene/model/placement.hxx>
  70 #include <simgear/scene/util/SGUpdateVisitor.hxx>
  71 #include <simgear/scene/tgdb/pt_lights.hxx>
  72 #include <simgear/props/props.hxx>
  73 #include <simgear/timing/sg_time.hxx>
  74 #include <simgear/ephemeris/ephemeris.hxx>
  75 #include <simgear/math/sg_random.h>
  76 #ifdef FG_JPEG_SERVER
  77 #include <simgear/screen/jpgfactory.hxx>
  78 #endif
  79
  80 #include <simgear/environment/visual_enviro.hxx>
  81
  82 #include <Scenery/tileentry.hxx>
  83 #include <Time/light.hxx>
  84 #include <Time/light.hxx>
  85 #include <Aircraft/aircraft.hxx>
  86 #include <Cockpit/panel.hxx>
  87 #include <Cockpit/cockpit.hxx>
  88 #include <Cockpit/hud.hxx>
  89 #include <Model/panelnode.hxx>
  90 #include <Model/modelmgr.hxx>
  91 #include <Model/acmodel.hxx>
  92 #include <Scenery/scenery.hxx>
  93 #include <Scenery/tilemgr.hxx>
  94 #include <ATC/ATCdisplay.hxx>
  95 #include <GUI/new_gui.hxx>
  96 #include <Instrumentation/instrument_mgr.hxx>
  97 #include <Instrumentation/HUD/HUD.hxx>
  98
  99 #include "splash.hxx"
 100 #include "renderer.hxx"
 101 #include "main.hxx"
 102
 103 class SGPuDrawable : public osg::Drawable {
 104 public:
 105   SGPuDrawable()
 106   {
 107     // Dynamic stuff, do not store geometry
 108     setUseDisplayList(false);
 109
 110     osg::StateSet* stateSet = getOrCreateStateSet();
 111     stateSet->setRenderBinDetails(1001, "RenderBin");
 112     // speed optimization?
 113     stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
 114     // We can do translucent menus, so why not. :-)
 115     stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
 116     stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
 117     stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
 118
 119     stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
 120
 121     stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
 122     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
 123   }
 124   virtual void drawImplementation(osg::RenderInfo& renderInfo) const
 125   { drawImplementation(*renderInfo.getState()); }
 126   void drawImplementation(osg::State& state) const
 127   {
 128     state.pushStateSet(getStateSet());
 129     state.apply();
 130     state.setActiveTextureUnit(0);
 131     state.setClientActiveTextureUnit(0);
 132     state.disableAllVertexArrays();
 133
 134     glPushAttrib(GL_ALL_ATTRIB_BITS);
 135     glPushClientAttrib(~0u);
 136
 137     if((fgGetBool("/sim/atc/enabled"))
 138        || (fgGetBool("/sim/ai-traffic/enabled")))
 139       globals->get_ATC_display()->update(delta_time_sec, state);
 140
 141     puDisplay();
 142
 143     glPopClientAttrib();
 144     glPopAttrib();
 145
 146     state.popStateSet();
 147     state.dirtyAllModes();
 148     state.dirtyAllAttributes();
 149     state.dirtyAllVertexArrays();
 150   }
 151
 152   virtual osg::Object* cloneType() const { return new SGPuDrawable; }
 153   virtual osg::Object* clone(const osg::CopyOp&) const { return new SGPuDrawable; }
 154
 155 private:
 156 };
 157
 158 class SGHUDAndPanelDrawable : public osg::Drawable {
 159 public:
 160   SGHUDAndPanelDrawable()
 161   {
 162     // Dynamic stuff, do not store geometry
 163     setUseDisplayList(false);
 164
 165     osg::StateSet* stateSet = getOrCreateStateSet();
 166     stateSet->setRenderBinDetails(1000, "RenderBin");
 167
 168     // speed optimization?
 169     stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
 170     stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
 171     stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
 172     stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
 173     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
 174
 175     stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
 176   }
 177   virtual void drawImplementation(osg::RenderInfo& renderInfo) const
 178   { drawImplementation(*renderInfo.getState()); }
 179   void drawImplementation(osg::State& state) const
 180   {
 181     state.pushStateSet(getStateSet());
 182     state.apply();
 183     state.setActiveTextureUnit(0);
 184     state.setClientActiveTextureUnit(0);
 185     state.disableAllVertexArrays();
 186
 187     glPushAttrib(GL_ALL_ATTRIB_BITS);
 188     glPushClientAttrib(~0u);
 189
 190     fgCockpitUpdate(&state);
 191
 192     FGInstrumentMgr *instr = static_cast<FGInstrumentMgr*>(globals->get_subsystem("instrumentation"));
 193     HUD *hud = static_cast<HUD*>(instr->get_subsystem("hud"));
 194     hud->draw(state);
 195
 196     // update the panel subsystem
 197     if ( globals->get_current_panel() != NULL )
 198         globals->get_current_panel()->update(state);
 199     // We don't need a state here - can be safely removed when we can pick
 200     // correctly
 201     fgUpdate3DPanels();
 202
 203     glPopClientAttrib();
 204     glPopAttrib();
 205
 206     state.popStateSet();
 207     state.dirtyAllModes();
 208     state.dirtyAllAttributes();
 209     state.dirtyAllVertexArrays();
 210   }
 211
 212   virtual osg::Object* cloneType() const { return new SGHUDAndPanelDrawable; }
 213   virtual osg::Object* clone(const osg::CopyOp&) const { return new SGHUDAndPanelDrawable; }
 214
 215 private:
 216 };
 217
 218 class FGLightSourceUpdateCallback : public osg::NodeCallback {
 219 public:
 220   virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
 221   {
 222     assert(dynamic_cast<osg::LightSource*>(node));
 223     osg::LightSource* lightSource = static_cast<osg::LightSource*>(node);
 224     osg::Light* light = lightSource->getLight();
 225
 226     FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
 227     light->setAmbient(l->scene_ambient().osg());
 228     light->setDiffuse(l->scene_diffuse().osg());
 229     light->setSpecular(l->scene_specular().osg());
 230     SGVec4f position(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2], 0);
 231     light->setPosition(position.osg());
 232     SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
 233     light->setDirection(direction.osg());
 234     light->setSpotExponent(0);
 235     light->setSpotCutoff(180);
 236     light->setConstantAttenuation(1);
 237     light->setLinearAttenuation(0);
 238     light->setQuadraticAttenuation(0);
 239
 240     traverse(node, nv);
 241   }
 242 };
 243
 244 class FGWireFrameModeUpdateCallback : public osg::StateAttribute::Callback {
 245 public:
 246   FGWireFrameModeUpdateCallback() :
 247     mWireframe(fgGetNode("/sim/rendering/wireframe"))
 248   { }
 249   virtual void operator()(osg::StateAttribute* stateAttribute,
 250                           osg::NodeVisitor*)
 251   {
 252     assert(dynamic_cast<osg::PolygonMode*>(stateAttribute));
 253     osg::PolygonMode* polygonMode;
 254     polygonMode = static_cast<osg::PolygonMode*>(stateAttribute);
 255
 256     if (mWireframe->getBoolValue())
 257       polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
 258                            osg::PolygonMode::LINE);
 259     else
 260       polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
 261                            osg::PolygonMode::FILL);
 262   }
 263 private:
 264   SGSharedPtr<SGPropertyNode> mWireframe;
 265 };
 266
 267 class FGLightModelUpdateCallback : public osg::StateAttribute::Callback {
 268 public:
 269   FGLightModelUpdateCallback() :
 270     mHighlights(fgGetNode("/sim/rendering/specular-highlight"))
 271   { }
 272   virtual void operator()(osg::StateAttribute* stateAttribute,
 273                           osg::NodeVisitor*)
 274   {
 275     assert(dynamic_cast<osg::LightModel*>(stateAttribute));
 276     osg::LightModel* lightModel;
 277     lightModel = static_cast<osg::LightModel*>(stateAttribute);
 278
 279 #if 0
 280     FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
 281     lightModel->setAmbientIntensity(l->scene_ambient().osg());
 282 #else
 283     lightModel->setAmbientIntensity(osg::Vec4(0, 0, 0, 1));
 284 #endif
 285     lightModel->setTwoSided(true);
 286     lightModel->setLocalViewer(false);
 287
 288     if (mHighlights->getBoolValue()) {
 289       lightModel->setColorControl(osg::LightModel::SEPARATE_SPECULAR_COLOR);
 290     } else {
 291       lightModel->setColorControl(osg::LightModel::SINGLE_COLOR);
 292     }
 293   }
 294 private:
 295   SGSharedPtr<SGPropertyNode> mHighlights;
 296 };
 297
 298 class FGFogEnableUpdateCallback : public osg::StateSet::Callback {
 299 public:
 300   FGFogEnableUpdateCallback() :
 301     mFogEnabled(fgGetNode("/sim/rendering/fog"))
 302   { }
 303   virtual void operator()(osg::StateSet* stateSet, osg::NodeVisitor*)
 304   {
 305     if (strcmp(mFogEnabled->getStringValue(), "disabled") == 0) {
 306       stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
 307     } else {
 308       stateSet->setMode(GL_FOG, osg::StateAttribute::ON);
 309     }
 310   }
 311 private:
 312   SGSharedPtr<SGPropertyNode> mFogEnabled;
 313 };
 314
 315 // update callback for the switch node guarding that splash
 316 class FGScenerySwitchCallback : public osg::NodeCallback {
 317 public:
 318   virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
 319   {
 320     assert(dynamic_cast<osg::Switch*>(node));
 321     osg::Switch* sw = static_cast<osg::Switch*>(node);
 322
 323     double t = globals->get_sim_time_sec();
 324     bool enabled = 0 < t;
 325     sw->setValue(0, enabled);
 326     if (!enabled)
 327       return;
 328     traverse(node, nv);
 329   }
 330 };
 331
 332 // fog constants.  I'm a little nervous about putting actual code out
 333 // here but it seems to work (?)
 334 static const double m_log01 = -log( 0.01 );
 335 static const double sqrt_m_log01 = sqrt( m_log01 );
 336 static GLfloat fog_exp_density;
 337 static GLfloat fog_exp2_density;
 338 static GLfloat rwy_exp2_punch_through;
 339 static GLfloat taxi_exp2_punch_through;
 340 static GLfloat ground_exp2_punch_through;
 341
 342 // Sky structures
 343 SGSky *thesky;
 344
 345 osg::ref_ptr<osgUtil::SceneView> sceneView = new osgUtil::SceneView;  // This SceneView is used by class FGJpegHttpd ( jpg-httpd.cxx )
 346 static osg::ref_ptr<osg::FrameStamp> mFrameStamp = new osg::FrameStamp;
 347 static osg::ref_ptr<SGUpdateVisitor> mUpdateVisitor= new SGUpdateVisitor;
 348
 349 static osg::ref_ptr<osg::Group> mRealRoot = new osg::Group;
 350
 351 static osg::ref_ptr<osg::Group> mRoot = new osg::Group;
 352
 353 static osg::ref_ptr<osg::CameraView> mCameraView = new osg::CameraView;
 354 static osg::ref_ptr<osg::Camera> mBackGroundCamera = new osg::Camera;
 355
 356 static osg::ref_ptr<osg::Fog> mFog = new osg::Fog;
 357 static osg::ref_ptr<osg::Fog> mRunwayLightingFog = new osg::Fog;
 358 static osg::ref_ptr<osg::Fog> mTaxiLightingFog = new osg::Fog;
 359 static osg::ref_ptr<osg::Fog> mGroundLightingFog = new osg::Fog;
 360
 361 FGRenderer::FGRenderer()
 362 {
 363 #ifdef FG_JPEG_SERVER
 364    jpgRenderFrame = FGRenderer::update;
 365 #endif
 366 }
 367
 368 FGRenderer::~FGRenderer()
 369 {
 370 #ifdef FG_JPEG_SERVER
 371    jpgRenderFrame = NULL;
 372 #endif
 373 }
 374
 375 // Initialize various GL/view parameters
 376 void
 377 FGRenderer::splashinit( void ) {
 378    // Add the splash screen node
 379    mRealRoot->addChild(fgCreateSplashNode());
 380    sceneView->setSceneData(mRealRoot.get());
 381
 382    sceneView->setDefaults(osgUtil::SceneView::COMPILE_GLOBJECTS_AT_INIT);
 383    sceneView->setFrameStamp(mFrameStamp.get());
 384    sceneView->setUpdateVisitor(mUpdateVisitor.get());
 385 }
 386
 387 void
 388 FGRenderer::init( void ) {
 389
 390     osg::initNotifyLevel();
 391
 392     // The number of polygon-offset "units" to place between layers.  In
 393     // principle, one is supposed to be enough.  In practice, I find that
 394     // my hardware/driver requires many more.
 395     osg::PolygonOffset::setUnitsMultiplier(1);
 396     osg::PolygonOffset::setFactorMultiplier(1);
 397
 398     // Go full screen if requested ...
 399     if ( fgGetBool("/sim/startup/fullscreen") )
 400         fgOSFullScreen();
 401
 402     if ( (!strcmp(fgGetString("/sim/rendering/fog"), "disabled")) ||
 403          (!fgGetBool("/sim/rendering/shading"))) {
 404         // if fastest fog requested, or if flat shading force fastest
 405         glHint ( GL_FOG_HINT, GL_FASTEST );
 406     } else if ( !strcmp(fgGetString("/sim/rendering/fog"), "nicest") ) {
 407         glHint ( GL_FOG_HINT, GL_DONT_CARE );
 408     }
 409
 410     glHint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
 411     glHint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
 412     glHint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
 413
 414     mFog->setMode(osg::Fog::EXP2);
 415     mRunwayLightingFog->setMode(osg::Fog::EXP2);
 416     mTaxiLightingFog->setMode(osg::Fog::EXP2);
 417     mGroundLightingFog->setMode(osg::Fog::EXP2);
 418
 419     sceneView->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
 420     sceneView->getCamera()->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
 421
 422
 423     osg::StateSet* stateSet = mRoot->getOrCreateStateSet();
 424
 425     stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
 426
 427     stateSet->setAttribute(new osg::Depth(osg::Depth::LESS));
 428     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
 429
 430     stateSet->setAttribute(new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01));
 431     stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::OFF);
 432     stateSet->setAttribute(new osg::BlendFunc);
 433     stateSet->setMode(GL_BLEND, osg::StateAttribute::OFF);
 434
 435     stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
 436
 437     // this will be set below
 438     stateSet->setMode(GL_NORMALIZE, osg::StateAttribute::OFF);
 439
 440     osg::Material* material = new osg::Material;
 441     stateSet->setAttribute(material);
 442
 443     stateSet->setTextureAttribute(0, new osg::TexEnv);
 444     stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
 445
 446
 447 //     stateSet->setAttribute(new osg::CullFace(osg::CullFace::BACK));
 448 //     stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
 449
 450     // this is the topmost scenegraph node for osg
 451     mBackGroundCamera->addChild(thesky->getPreRoot());
 452     mBackGroundCamera->setClearMask(0);
 453
 454     GLbitfield inheritanceMask = osg::CullSettings::ALL_VARIABLES;
 455     inheritanceMask &= ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE;
 456     inheritanceMask &= ~osg::CullSettings::NEAR_FAR_RATIO;
 457     inheritanceMask &= ~osg::CullSettings::CULLING_MODE;
 458     mBackGroundCamera->setInheritanceMask(inheritanceMask);
 459     mBackGroundCamera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
 460     mBackGroundCamera->setCullingMode(osg::CullSettings::NO_CULLING);
 461     mBackGroundCamera->setRenderOrder(osg::Camera::NESTED_RENDER);
 462
 463     stateSet = mBackGroundCamera->getOrCreateStateSet();
 464     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
 465
 466     osg::Group* sceneGroup = new osg::Group;
 467     sceneGroup->addChild(globals->get_scenery()->get_scene_graph());
 468     sceneGroup->addChild(thesky->getCloudRoot());
 469
 470     stateSet = sceneGroup->getOrCreateStateSet();
 471     stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
 472     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
 473
 474     // need to update the light on every frame
 475     osg::LightSource* lightSource = new osg::LightSource;
 476     lightSource->setUpdateCallback(new FGLightSourceUpdateCallback);
 477     // relative because of CameraView being just a clever transform node
 478     lightSource->setReferenceFrame(osg::LightSource::RELATIVE_RF);
 479     lightSource->setLocalStateSetModes(osg::StateAttribute::ON);
 480     mRoot->addChild(lightSource);
 481
 482     lightSource->addChild(mBackGroundCamera.get());
 483     lightSource->addChild(sceneGroup);
 484
 485
 486     stateSet = globals->get_scenery()->get_scene_graph()->getOrCreateStateSet();
 487     stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
 488     stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
 489     stateSet->setMode(GL_LIGHTING, osg::StateAttribute::ON);
 490     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
 491
 492     // enable disable specular highlights.
 493     // is the place where we might plug in an other fragment shader ...
 494     osg::LightModel* lightModel = new osg::LightModel;
 495     lightModel->setUpdateCallback(new FGLightModelUpdateCallback);
 496     stateSet->setAttribute(lightModel);
 497
 498     // switch to enable wireframe
 499     osg::PolygonMode* polygonMode = new osg::PolygonMode;
 500     polygonMode->setUpdateCallback(new FGWireFrameModeUpdateCallback);
 501     stateSet->setAttributeAndModes(polygonMode);
 502
 503     // scene fog handling
 504     stateSet->setAttributeAndModes(mFog.get());
 505     stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
 506
 507     // plug in the GUI
 508     osg::Camera* guiCamera = new osg::Camera;
 509     guiCamera->setRenderOrder(osg::Camera::POST_RENDER);
 510     guiCamera->setClearMask(0);
 511     inheritanceMask = osg::CullSettings::ALL_VARIABLES;
 512     inheritanceMask &= ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE;
 513     inheritanceMask &= ~osg::CullSettings::CULLING_MODE;
 514     guiCamera->setInheritanceMask(inheritanceMask);
 515     guiCamera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
 516     guiCamera->setCullingMode(osg::CullSettings::NO_CULLING);
 517     osg::Geode* geode = new osg::Geode;
 518     geode->addDrawable(new SGPuDrawable);
 519     geode->addDrawable(new SGHUDAndPanelDrawable);
 520     guiCamera->addChild(geode);
 521
 522     // this one contains all lights, here we set the light states we did
 523     // in the plib case with plain OpenGL
 524     osg::Group* lightGroup = new osg::Group;
 525     sceneGroup->addChild(lightGroup);
 526     lightGroup->addChild(globals->get_scenery()->get_gnd_lights_root());
 527     lightGroup->addChild(globals->get_scenery()->get_vasi_lights_root());
 528     lightGroup->addChild(globals->get_scenery()->get_rwy_lights_root());
 529     lightGroup->addChild(globals->get_scenery()->get_taxi_lights_root());
 530
 531     stateSet = globals->get_scenery()->get_gnd_lights_root()->getOrCreateStateSet();
 532     stateSet->setAttributeAndModes(mFog.get());
 533     stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
 534     stateSet = globals->get_scenery()->get_vasi_lights_root()->getOrCreateStateSet();
 535     stateSet->setAttributeAndModes(mRunwayLightingFog.get());
 536     stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
 537     stateSet = globals->get_scenery()->get_rwy_lights_root()->getOrCreateStateSet();
 538     stateSet->setAttributeAndModes(mRunwayLightingFog.get());
 539     stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
 540     stateSet = globals->get_scenery()->get_taxi_lights_root()->getOrCreateStateSet();
 541     stateSet->setAttributeAndModes(mTaxiLightingFog.get());
 542     stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
 543
 544     mCameraView->addChild(mRoot.get());
 545
 546     osg::Switch* sw = new osg::Switch;
 547     sw->setUpdateCallback(new FGScenerySwitchCallback);
 548     sw->addChild(mCameraView.get());
 549
 550     mRealRoot->addChild(sw);
 551     mRealRoot->addChild(guiCamera);
 552 }
 553
 554
 555 // Update all Visuals (redraws anything graphics related)
 556 void
 557 FGRenderer::update( bool refresh_camera_settings ) {
 558     bool scenery_loaded = fgGetBool("sim/sceneryloaded")
 559                           || fgGetBool("sim/sceneryloaded-override");
 560
 561     if ( idle_state < 1000 || !scenery_loaded ) {
 562         fgSetDouble("/sim/startup/splash-alpha", 1.0);
 563
 564         // Keep resetting sim time while the sim is initializing
 565         globals->set_sim_time_sec( 0.0 );
 566
 567         // the splash screen is now in the scenegraph
 568         sceneView->update();
 569         sceneView->cull();
 570         sceneView->draw();
 571
 572         return;
 573     }
 574
 575     // Fade out the splash screen over the first three seconds.
 576     double sAlpha = SGMiscd::max(0, (2.5 - globals->get_sim_time_sec()) / 2.5);
 577     fgSetDouble("/sim/startup/splash-alpha", sAlpha);
 578
 579     bool skyblend = fgGetBool("/sim/rendering/skyblend");
 580     bool use_point_sprites = fgGetBool("/sim/rendering/point-sprites");
 581     bool enhanced_lighting = fgGetBool("/sim/rendering/enhanced-lighting");
 582     bool distance_attenuation
 583         = fgGetBool("/sim/rendering/distance-attenuation");
 584     // OSGFIXME
 585     SGConfigureDirectionalLights( use_point_sprites, enhanced_lighting,
 586                                   distance_attenuation );
 587
 588     static const SGPropertyNode *groundlevel_nearplane
 589         = fgGetNode("/sim/current-view/ground-level-nearplane-m");
 590
 591     FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
 592
 593     // update fog params
 594     double actual_visibility;
 595     if (fgGetBool("/environment/clouds/status")) {
 596         actual_visibility = thesky->get_visibility();
 597     } else {
 598         actual_visibility = fgGetDouble("/environment/visibility-m");
 599     }
 600
 601     static double last_visibility = -9999;
 602     if ( actual_visibility != last_visibility ) {
 603         last_visibility = actual_visibility;
 604
 605         fog_exp_density = m_log01 / actual_visibility;
 606         fog_exp2_density = sqrt_m_log01 / actual_visibility;
 607         ground_exp2_punch_through = sqrt_m_log01 / (actual_visibility * 1.5);
 608         if ( actual_visibility < 8000 ) {
 609             rwy_exp2_punch_through = sqrt_m_log01 / (actual_visibility * 2.5);
 610             taxi_exp2_punch_through = sqrt_m_log01 / (actual_visibility * 1.5);
 611         } else {
 612             rwy_exp2_punch_through = sqrt_m_log01 / ( 8000 * 2.5 );
 613             taxi_exp2_punch_through = sqrt_m_log01 / ( 8000 * 1.5 );
 614         }
 615         mFog->setDensity(fog_exp2_density);
 616         mRunwayLightingFog->setDensity(rwy_exp2_punch_through);
 617         mTaxiLightingFog->setDensity(taxi_exp2_punch_through);
 618         mGroundLightingFog->setDensity(ground_exp2_punch_through);
 619     }
 620
 621     // idle_state is now 1000 meaning we've finished all our
 622     // initializations and are running the main loop, so this will
 623     // now work without seg faulting the system.
 624
 625     FGViewer *current__view = globals->get_current_view();
 626     // Force update of center dependent values ...
 627     current__view->set_dirty();
 628
 629     if ( refresh_camera_settings ) {
 630         // update view port
 631         resize( fgGetInt("/sim/startup/xsize"),
 632                 fgGetInt("/sim/startup/ysize") );
 633
 634         SGVec3d center = globals->get_scenery()->get_center();
 635         SGVec3d position = current__view->getViewPosition();
 636         SGQuatd attitude = current__view->getViewOrientation();
 637         SGVec3d osgPosition = attitude.transform(center - position);
 638         mCameraView->setPosition(osgPosition.osg());
 639         mCameraView->setAttitude(inverse(attitude).osg());
 640     }
 641
 642     if ( skyblend ) {
 643         if ( fgGetBool("/sim/rendering/textures") ) {
 644             SGVec4f clearColor(l->adj_fog_color());
 645             sceneView->getCamera()->setClearColor(clearColor.osg());
 646         }
 647     } else {
 648         SGVec4f clearColor(l->sky_color());
 649         sceneView->getCamera()->setClearColor(clearColor.osg());
 650     }
 651
 652     // update fog params if visibility has changed
 653     double visibility_meters = fgGetDouble("/environment/visibility-m");
 654     thesky->set_visibility(visibility_meters);
 655
 656     thesky->modify_vis( cur_fdm_state->get_Altitude() * SG_FEET_TO_METER,
 657                         ( global_multi_loop * fgGetInt("/sim/speed-up") )
 658                         / (double)fgGetInt("/sim/model-hz") );
 659
 660     // update the sky dome
 661     if ( skyblend ) {
 662
 663         // The sun and moon distances are scaled down versions
 664         // of the actual distance to get both the moon and the sun
 665         // within the range of the far clip plane.
 666         // Moon distance:    384,467 kilometers
 667         // Sun distance: 150,000,000 kilometers
 668
 669         double sun_horiz_eff, moon_horiz_eff;
 670         if (fgGetBool("/sim/rendering/horizon-effect")) {
 671            sun_horiz_eff = 0.67+pow(0.5+cos(l->get_sun_angle())*2/2, 0.33)/3;
 672            moon_horiz_eff = 0.67+pow(0.5+cos(l->get_moon_angle())*2/2, 0.33)/3;
 673         } else {
 674            sun_horiz_eff = moon_horiz_eff = 1.0;
 675         }
 676
 677         static SGSkyState sstate;
 678
 679         sstate.view_pos  = current__view->get_view_pos();
 680         sstate.zero_elev = current__view->get_zero_elev();
 681         sstate.view_up   = current__view->get_world_up();
 682         sstate.lon       = current__view->getLongitude_deg()
 683                             * SGD_DEGREES_TO_RADIANS;
 684         sstate.lat       = current__view->getLatitude_deg()
 685                             * SGD_DEGREES_TO_RADIANS;
 686         sstate.alt       = current__view->getAltitudeASL_ft()
 687                             * SG_FEET_TO_METER;
 688         sstate.spin      = l->get_sun_rotation();
 689         sstate.gst       = globals->get_time_params()->getGst();
 690         sstate.sun_ra    = globals->get_ephem()->getSunRightAscension();
 691         sstate.sun_dec   = globals->get_ephem()->getSunDeclination();
 692         sstate.sun_dist  = 50000.0 * sun_horiz_eff;
 693         sstate.moon_ra   = globals->get_ephem()->getMoonRightAscension();
 694         sstate.moon_dec  = globals->get_ephem()->getMoonDeclination();
 695         sstate.moon_dist = 40000.0 * moon_horiz_eff;
 696         sstate.sun_angle = l->get_sun_angle();
 697
 698
 699         /*
 700          SG_LOG( SG_GENERAL, SG_BULK, "thesky->repaint() sky_color = "
 701          << l->sky_color()[0] << " "
 702          << l->sky_color()[1] << " "
 703          << l->sky_color()[2] << " "
 704          << l->sky_color()[3] );
 705         SG_LOG( SG_GENERAL, SG_BULK, "    fog = "
 706          << l->fog_color()[0] << " "
 707          << l->fog_color()[1] << " "
 708          << l->fog_color()[2] << " "
 709          << l->fog_color()[3] );
 710         SG_LOG( SG_GENERAL, SG_BULK,
 711                 "    sun_angle = " << l->sun_angle
 712          << "    moon_angle = " << l->moon_angle );
 713         */
 714
 715         static SGSkyColor scolor;
 716
 717         scolor.sky_color   = SGVec3f(l->sky_color().data());
 718         scolor.fog_color   = SGVec3f(l->adj_fog_color().data());
 719         scolor.cloud_color = SGVec3f(l->cloud_color().data());
 720         scolor.sun_angle   = l->get_sun_angle();
 721         scolor.moon_angle  = l->get_moon_angle();
 722         scolor.nplanets    = globals->get_ephem()->getNumPlanets();
 723         scolor.nstars      = globals->get_ephem()->getNumStars();
 724         scolor.planet_data = globals->get_ephem()->getPlanets();
 725         scolor.star_data   = globals->get_ephem()->getStars();
 726
 727         thesky->reposition( sstate, delta_time_sec );
 728         thesky->repaint( scolor );
 729
 730         /*
 731         SG_LOG( SG_GENERAL, SG_BULK,
 732                 "thesky->reposition( view_pos = " << view_pos[0] << " "
 733          << view_pos[1] << " " << view_pos[2] );
 734         SG_LOG( SG_GENERAL, SG_BULK,
 735                 "    zero_elev = " << zero_elev[0] << " "
 736          << zero_elev[1] << " " << zero_elev[2]
 737          << " lon = " << cur_fdm_state->get_Longitude()
 738          << " lat = " << cur_fdm_state->get_Latitude() );
 739         SG_LOG( SG_GENERAL, SG_BULK,
 740                 "    sun_rot = " << l->get_sun_rotation
 741          << " gst = " << SGTime::cur_time_params->getGst() );
 742         SG_LOG( SG_GENERAL, SG_BULK,
 743              "    sun ra = " << globals->get_ephem()->getSunRightAscension()
 744           << " sun dec = " << globals->get_ephem()->getSunDeclination()
 745           << " moon ra = " << globals->get_ephem()->getMoonRightAscension()
 746           << " moon dec = " << globals->get_ephem()->getMoonDeclination() );
 747         */
 748
 749         //OSGFIXME
 750 //         shadows->setupShadows(
 751 //           current__view->getLongitude_deg(),
 752 //           current__view->getLatitude_deg(),
 753 //           globals->get_time_params()->getGst(),
 754 //           globals->get_ephem()->getSunRightAscension(),
 755 //           globals->get_ephem()->getSunDeclination(),
 756 //           l->get_sun_angle());
 757
 758     }
 759
 760     if ( strcmp(fgGetString("/sim/rendering/fog"), "disabled") ) {
 761         SGVec4f color(l->adj_fog_color());
 762         mFog->setColor(color.osg());
 763         mRunwayLightingFog->setColor(color.osg());
 764         mTaxiLightingFog->setColor(color.osg());
 765         mGroundLightingFog->setColor(color.osg());
 766     }
 767
 768
 769 //     sgEnviro.setLight(l->adj_fog_color());
 770
 771     // texture parameters
 772     glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST );
 773
 774     double agl = current__view->getAltitudeASL_ft()*SG_FEET_TO_METER
 775       - current__view->getSGLocation()->get_cur_elev_m();
 776
 777     float scene_nearplane, scene_farplane;
 778     if ( agl > 10.0 ) {
 779         scene_nearplane = 10.0f;
 780         scene_farplane = 120000.0f;
 781     } else {
 782         scene_nearplane = groundlevel_nearplane->getDoubleValue();
 783         scene_farplane = 120000.0f;
 784     }
 785     setNearFar( scene_nearplane, scene_farplane );
 786
 787 //     sgEnviro.startOfFrame(current__view->get_view_pos(),
 788 //         current__view->get_world_up(),
 789 //         current__view->getLongitude_deg(),
 790 //         current__view->getLatitude_deg(),
 791 //         current__view->getAltitudeASL_ft() * SG_FEET_TO_METER,
 792 //         delta_time_sec);
 793
 794     // OSGFIXME
 795 //     sgEnviro.drawLightning();
 796
 797 //        double current_view_origin_airspeed_horiz_kt =
 798 //         fgGetDouble("/velocities/airspeed-kt", 0.0)
 799 //                        * cos( fgGetDouble("/orientation/pitch-deg", 0.0)
 800 //                                * SGD_DEGREES_TO_RADIANS);
 801        // TODO:find the real view speed, not the AC one
 802 //     sgEnviro.drawPrecipitation(
 803 //         fgGetDouble("/environment/metar/rain-norm", 0.0),
 804 //         fgGetDouble("/environment/metar/snow-norm", 0.0),
 805 //         fgGetDouble("/environment/metar/hail-norm", 0.0),
 806 //         current__view->getPitch_deg() + current__view->getPitchOffset_deg(),
 807 //         current__view->getRoll_deg() + current__view->getRollOffset_deg(),
 808 //         - current__view->getHeadingOffset_deg(),
 809 //                current_view_origin_airspeed_horiz_kt
 810 //                );
 811
 812     // OSGFIXME
 813 //     if( is_internal )
 814 //         shadows->endOfFrame();
 815
 816     // need to call the update visitor once
 817     globals->get_aircraft_model()->select( true );
 818     FGTileMgr::set_tile_filter( true );
 819     mFrameStamp->setReferenceTime(globals->get_sim_time_sec());
 820     mFrameStamp->setFrameNumber(1+mFrameStamp->getFrameNumber());
 821     mFrameStamp->setCalendarTime(*globals->get_time_params()->getGmt());
 822     mUpdateVisitor->setViewData(current__view->getViewPosition(),
 823                                 current__view->getViewOrientation());
 824     mUpdateVisitor->setSceneryCenter(globals->get_scenery()->get_center());
 825     SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
 826     mUpdateVisitor->setLight(direction, l->scene_ambient(),
 827                              l->scene_diffuse(), l->scene_specular());
 828     mUpdateVisitor->setVisibility(actual_visibility);
 829
 830     if (fgGetBool("/sim/panel-hotspots"))
 831       sceneView->setCullMask(sceneView->getCullMask()|SG_NODEMASK_PICK_BIT);
 832     else
 833       sceneView->setCullMask(sceneView->getCullMask()&(~SG_NODEMASK_PICK_BIT));
 834
 835     sceneView->update();
 836     sceneView->cull();
 837     sceneView->draw();
 838 }
 839
 840
 841
 842 // options.cxx needs to see this for toggle_panel()
 843 // Handle new window size or exposure
 844 void
 845 FGRenderer::resize( int width, int height ) {
 846     int view_h;
 847
 848     if ( (!fgGetBool("/sim/virtual-cockpit"))
 849          && fgPanelVisible() && idle_state == 1000 ) {
 850         view_h = (int)(height * (globals->get_current_panel()->getViewHeight() -
 851                              globals->get_current_panel()->getYOffset()) / 768.0);
 852     } else {
 853         view_h = height;
 854     }
 855
 856     sceneView->getViewport()->setViewport(0, height - view_h, width, view_h);
 857
 858     static int lastwidth = 0;
 859     static int lastheight = 0;
 860     if (width != lastwidth)
 861         fgSetInt("/sim/startup/xsize", lastwidth = width);
 862     if (height != lastheight)
 863         fgSetInt("/sim/startup/ysize", lastheight = height);
 864
 865     guiInitMouse(width, height);
 866
 867     // for all views
 868     FGViewMgr *viewmgr = globals->get_viewmgr();
 869     if (viewmgr) {
 870       for ( int i = 0; i < viewmgr->size(); ++i ) {
 871         viewmgr->get_view(i)->
 872           set_aspect_ratio((float)view_h / (float)width);
 873       }
 874
 875       setFOV( viewmgr->get_current_view()->get_h_fov(),
 876               viewmgr->get_current_view()->get_v_fov() );
 877     }
 878 }
 879
 880
 881 // These are wrapper functions around ssgSetNearFar() and ssgSetFOV()
 882 // which will post process and rewrite the resulting frustum if we
 883 // want to do asymmetric view frustums.
 884
 885 static void fgHackFrustum() {
 886
 887     // specify a percent of the configured view frustum to actually
 888     // display.  This is a bit of a hack to achieve asymmetric view
 889     // frustums.  For instance, if you want to display two monitors
 890     // side by side, you could specify each with a double fov, a 0.5
 891     // aspect ratio multiplier, and then the left side monitor would
 892     // have a left_pct = 0.0, a right_pct = 0.5, a bottom_pct = 0.0,
 893     // and a top_pct = 1.0.  The right side monitor would have a
 894     // left_pct = 0.5 and a right_pct = 1.0.
 895
 896     static SGPropertyNode *left_pct
 897         = fgGetNode("/sim/current-view/frustum-left-pct");
 898     static SGPropertyNode *right_pct
 899         = fgGetNode("/sim/current-view/frustum-right-pct");
 900     static SGPropertyNode *bottom_pct
 901         = fgGetNode("/sim/current-view/frustum-bottom-pct");
 902     static SGPropertyNode *top_pct
 903         = fgGetNode("/sim/current-view/frustum-top-pct");
 904
 905     double left, right;
 906     double bottom, top;
 907     double zNear, zFar;
 908     sceneView->getProjectionMatrixAsFrustum(left, right, bottom, top, zNear, zFar);
 909     // cout << " l = " << f->getLeft()
 910     //      << " r = " << f->getRight()
 911     //      << " b = " << f->getBot()
 912     //      << " t = " << f->getTop()
 913     //      << " n = " << f->getNear()
 914     //      << " f = " << f->getFar()
 915     //      << endl;
 916
 917     double width = right - left;
 918     double height = top - bottom;
 919
 920     double l, r, t, b;
 921
 922     if ( left_pct != NULL ) {
 923         l = left + width * left_pct->getDoubleValue();
 924     } else {
 925         l = left;
 926     }
 927
 928     if ( right_pct != NULL ) {
 929         r = left + width * right_pct->getDoubleValue();
 930     } else {
 931         r = right;
 932     }
 933
 934     if ( bottom_pct != NULL ) {
 935         b = bottom + height * bottom_pct->getDoubleValue();
 936     } else {
 937         b = bottom;
 938     }
 939
 940     if ( top_pct != NULL ) {
 941         t = bottom + height * top_pct->getDoubleValue();
 942     } else {
 943         t = top;
 944     }
 945
 946     sceneView->setProjectionMatrixAsFrustum(l, r, b, t, zNear, zFar);
 947 }
 948
 949
 950 // we need some static storage space for these values.  However, we
 951 // can't store it in a renderer class object because the functions
 952 // that manipulate these are static.  They are static so they can
 953 // interface to the display callback system.  There's probably a
 954 // better way, there has to be a better way, but I'm not seeing it
 955 // right now.
 956 static float fov_width = 55.0;
 957 static float fov_height = 42.0;
 958 static float fov_near = 1.0;
 959 static float fov_far = 1000.0;
 960
 961
 962 /** FlightGear code should use this routine to set the FOV rather than
 963  *  calling the ssg routine directly
 964  */
 965 void FGRenderer::setFOV( float w, float h ) {
 966     fov_width = w;
 967     fov_height = h;
 968
 969     sceneView->setProjectionMatrixAsPerspective(fov_height,
 970                                                 fov_width/fov_height,
 971                                                 fov_near, fov_far);
 972     // fully specify the view frustum before hacking it (so we don't
 973     // accumulate hacked effects
 974     fgHackFrustum();
 975 //     sgEnviro.setFOV( w, h );
 976 }
 977
 978
 979 /** FlightGear code should use this routine to set the Near/Far clip
 980  *  planes rather than calling the ssg routine directly
 981  */
 982 void FGRenderer::setNearFar( float n, float f ) {
 983 // OSGFIXME: we have currently too much z-buffer fights
 984 n = 0.1;
 985     fov_near = n;
 986     fov_far = f;
 987
 988     sceneView->setProjectionMatrixAsPerspective(fov_height,
 989                                                 fov_width/fov_height,
 990                                                 fov_near, fov_far);
 991
 992     // fully specify the view frustum before hacking it (so we don't
 993     // accumulate hacked effects
 994     fgHackFrustum();
 995 }
 996
 997 bool
 998 FGRenderer::pick( unsigned x, unsigned y,
 999                   std::vector<SGSceneryPick>& pickList )
1000 {
1001   // wipe out the return ...
1002   pickList.resize(0);
1003
1004   // we can get called early ...
1005   if (!sceneView.valid())
1006     return false;
1007
1008   osg::Node* sceneData = globals->get_scenery()->get_scene_graph();
1009   if (!sceneData)
1010     return false;
1011   osg::Viewport* viewport = sceneView->getViewport();
1012   if (!viewport)
1013     return false;
1014
1015   // good old scenery center
1016   SGVec3d center = globals->get_scenery()->get_center();
1017
1018   // don't know why, but the update has partly happened somehow,
1019   // so update the scenery part of the viewer
1020   FGViewer *current_view = globals->get_current_view();
1021   // Force update of center dependent values ...
1022   current_view->set_dirty();
1023   SGVec3d position = current_view->getViewPosition();
1024   SGQuatd attitude = current_view->getViewOrientation();
1025   SGVec3d osgPosition = attitude.transform(center - position);
1026   mCameraView->setPosition(osgPosition.osg());
1027   mCameraView->setAttitude(inverse(attitude).osg());
1028
1029   osg::Matrix projection(sceneView->getProjectionMatrix());
1030   osg::Matrix modelview(sceneView->getViewMatrix());
1031
1032   osg::NodePathList nodePath = sceneData->getParentalNodePaths();
1033   // modify the view matrix so that it accounts for this nodePath's
1034   // accumulated transform
1035   if (!nodePath.empty())
1036     modelview.preMult(computeLocalToWorld(nodePath.front()));
1037
1038   // swap the y values ...
1039   y = viewport->height() - y;
1040   // set up the pick visitor
1041   osgUtil::PickVisitor pickVisitor(viewport, projection, modelview, x, y);
1042   sceneData->accept(pickVisitor);
1043   if (!pickVisitor.hits())
1044     return false;
1045
1046   // collect all interaction callbacks on the pick ray.
1047   // They get stored in the pickCallbacks list where they are sorted back
1048   // to front and croasest to finest wrt the scenery node they are attached to
1049   osgUtil::PickVisitor::LineSegmentHitListMap::const_iterator mi;
1050   for (mi = pickVisitor.getSegHitList().begin();
1051        mi != pickVisitor.getSegHitList().end();
1052        ++mi) {
1053     osgUtil::IntersectVisitor::HitList::const_iterator hi;
1054     for (hi = mi->second.begin(); hi != mi->second.end(); ++hi) {
1055       // ok, go back the nodes and ask for intersection callbacks,
1056       // execute them in top down order
1057       const osg::NodePath& np = hi->getNodePath();
1058       osg::NodePath::const_reverse_iterator npi;
1059       for (npi = np.rbegin(); npi != np.rend(); ++npi) {
1060         SGSceneUserData* ud = SGSceneUserData::getSceneUserData(*npi);
1061         if (!ud)
1062           continue;
1063         for (unsigned i = 0; i < ud->getNumPickCallbacks(); ++i) {
1064           SGPickCallback* pickCallback = ud->getPickCallback(i);
1065           if (!pickCallback)
1066             continue;
1067           SGSceneryPick sceneryPick;
1068           /// note that this is done totally in doubles instead of
1069           /// just using getWorldIntersectionPoint
1070           osg::Vec3d localPt = hi->getLocalIntersectPoint();
1071           sceneryPick.info.local = SGVec3d(localPt);
1072           if (hi->getMatrix())
1073             sceneryPick.info.wgs84 = SGVec3d(localPt*(*hi->getMatrix()));
1074           else
1075             sceneryPick.info.wgs84 = SGVec3d(localPt);
1076           sceneryPick.info.wgs84 += globals->get_scenery()->get_center();
1077           sceneryPick.callback = pickCallback;
1078           pickList.push_back(sceneryPick);
1079         }
1080       }
1081     }
1082   }
1083
1084   return !pickList.empty();
1085 }
1086
1087 // end of renderer.cxx
1088