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/redout.hxx>
  94 #include <Scenery/tilemgr.hxx>
  95 #include <ATC/ATCdisplay.hxx>
  96 #include <GUI/new_gui.hxx>
  97 #include <Instrumentation/instrument_mgr.hxx>
  98 #include <Instrumentation/HUD/HUD.hxx>
  99
 100 #include "splash.hxx"
 101 #include "renderer.hxx"
 102 #include "main.hxx"
 103
 104 class SGPuDrawable : public osg::Drawable {
 105 public:
 106   SGPuDrawable()
 107   {
 108     // Dynamic stuff, do not store geometry
 109     setUseDisplayList(false);
 110
 111     osg::StateSet* stateSet = getOrCreateStateSet();
 112     stateSet->setRenderBinDetails(1001, "RenderBin");
 113     // speed optimization?
 114     stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
 115     // We can do translucent menus, so why not. :-)
 116     stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
 117     stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
 118     stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
 119
 120     stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
 121
 122     stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
 123     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
 124   }
 125   virtual void drawImplementation(osg::RenderInfo& renderInfo) const
 126   { drawImplementation(*renderInfo.getState()); }
 127   void drawImplementation(osg::State& state) const
 128   {
 129     state.pushStateSet(getStateSet());
 130     state.apply();
 131     state.setActiveTextureUnit(0);
 132     state.setClientActiveTextureUnit(0);
 133     state.disableAllVertexArrays();
 134
 135     glPushAttrib(GL_ALL_ATTRIB_BITS);
 136     glPushClientAttrib(~0u);
 137
 138     if((fgGetBool("/sim/atc/enabled"))
 139        || (fgGetBool("/sim/ai-traffic/enabled")))
 140       globals->get_ATC_display()->update(delta_time_sec, state);
 141
 142     puDisplay();
 143
 144     glPopClientAttrib();
 145     glPopAttrib();
 146
 147     state.popStateSet();
 148     state.dirtyAllModes();
 149     state.dirtyAllAttributes();
 150     state.dirtyAllVertexArrays();
 151   }
 152
 153   virtual osg::Object* cloneType() const { return new SGPuDrawable; }
 154   virtual osg::Object* clone(const osg::CopyOp&) const { return new SGPuDrawable; }
 155
 156 private:
 157 };
 158
 159 class SGHUDAndPanelDrawable : public osg::Drawable {
 160 public:
 161   SGHUDAndPanelDrawable()
 162   {
 163     // Dynamic stuff, do not store geometry
 164     setUseDisplayList(false);
 165
 166     osg::StateSet* stateSet = getOrCreateStateSet();
 167     stateSet->setRenderBinDetails(1000, "RenderBin");
 168
 169     // speed optimization?
 170     stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
 171     stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
 172     stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
 173     stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
 174     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
 175
 176     stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
 177   }
 178   virtual void drawImplementation(osg::RenderInfo& renderInfo) const
 179   { drawImplementation(*renderInfo.getState()); }
 180   void drawImplementation(osg::State& state) const
 181   {
 182     state.pushStateSet(getStateSet());
 183     state.apply();
 184     state.setActiveTextureUnit(0);
 185     state.setClientActiveTextureUnit(0);
 186     state.disableAllVertexArrays();
 187
 188     glPushAttrib(GL_ALL_ATTRIB_BITS);
 189     glPushClientAttrib(~0u);
 190
 191     fgCockpitUpdate(&state);
 192
 193     FGInstrumentMgr *instr = static_cast<FGInstrumentMgr*>(globals->get_subsystem("instrumentation"));
 194     HUD *hud = static_cast<HUD*>(instr->get_subsystem("hud"));
 195     hud->draw(state);
 196
 197     // update the panel subsystem
 198     if ( globals->get_current_panel() != NULL )
 199         globals->get_current_panel()->update(state);
 200     // We don't need a state here - can be safely removed when we can pick
 201     // correctly
 202     fgUpdate3DPanels();
 203
 204     glPopClientAttrib();
 205     glPopAttrib();
 206
 207     state.popStateSet();
 208     state.dirtyAllModes();
 209     state.dirtyAllAttributes();
 210     state.dirtyAllVertexArrays();
 211   }
 212
 213   virtual osg::Object* cloneType() const { return new SGHUDAndPanelDrawable; }
 214   virtual osg::Object* clone(const osg::CopyOp&) const { return new SGHUDAndPanelDrawable; }
 215
 216 private:
 217 };
 218
 219 class FGLightSourceUpdateCallback : public osg::NodeCallback {
 220 public:
 221   virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
 222   {
 223     assert(dynamic_cast<osg::LightSource*>(node));
 224     osg::LightSource* lightSource = static_cast<osg::LightSource*>(node);
 225     osg::Light* light = lightSource->getLight();
 226
 227     FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
 228     light->setAmbient(l->scene_ambient().osg());
 229     light->setDiffuse(l->scene_diffuse().osg());
 230     light->setSpecular(l->scene_specular().osg());
 231     SGVec4f position(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2], 0);
 232     light->setPosition(position.osg());
 233     SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
 234     light->setDirection(direction.osg());
 235     light->setSpotExponent(0);
 236     light->setSpotCutoff(180);
 237     light->setConstantAttenuation(1);
 238     light->setLinearAttenuation(0);
 239     light->setQuadraticAttenuation(0);
 240
 241     traverse(node, nv);
 242   }
 243 };
 244
 245 class FGWireFrameModeUpdateCallback : public osg::StateAttribute::Callback {
 246 public:
 247   FGWireFrameModeUpdateCallback() :
 248     mWireframe(fgGetNode("/sim/rendering/wireframe"))
 249   { }
 250   virtual void operator()(osg::StateAttribute* stateAttribute,
 251                           osg::NodeVisitor*)
 252   {
 253     assert(dynamic_cast<osg::PolygonMode*>(stateAttribute));
 254     osg::PolygonMode* polygonMode;
 255     polygonMode = static_cast<osg::PolygonMode*>(stateAttribute);
 256
 257     if (mWireframe->getBoolValue())
 258       polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
 259                            osg::PolygonMode::LINE);
 260     else
 261       polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
 262                            osg::PolygonMode::FILL);
 263   }
 264 private:
 265   SGSharedPtr<SGPropertyNode> mWireframe;
 266 };
 267
 268 class FGLightModelUpdateCallback : public osg::StateAttribute::Callback {
 269 public:
 270   FGLightModelUpdateCallback() :
 271     mHighlights(fgGetNode("/sim/rendering/specular-highlight"))
 272   { }
 273   virtual void operator()(osg::StateAttribute* stateAttribute,
 274                           osg::NodeVisitor*)
 275   {
 276     assert(dynamic_cast<osg::LightModel*>(stateAttribute));
 277     osg::LightModel* lightModel;
 278     lightModel = static_cast<osg::LightModel*>(stateAttribute);
 279
 280 #if 0
 281     FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
 282     lightModel->setAmbientIntensity(l->scene_ambient().osg());
 283 #else
 284     lightModel->setAmbientIntensity(osg::Vec4(0, 0, 0, 1));
 285 #endif
 286     lightModel->setTwoSided(true);
 287     lightModel->setLocalViewer(false);
 288
 289     if (mHighlights->getBoolValue()) {
 290       lightModel->setColorControl(osg::LightModel::SEPARATE_SPECULAR_COLOR);
 291     } else {
 292       lightModel->setColorControl(osg::LightModel::SINGLE_COLOR);
 293     }
 294   }
 295 private:
 296   SGSharedPtr<SGPropertyNode> mHighlights;
 297 };
 298
 299 class FGFogEnableUpdateCallback : public osg::StateSet::Callback {
 300 public:
 301   FGFogEnableUpdateCallback() :
 302     mFogEnabled(fgGetNode("/sim/rendering/fog"))
 303   { }
 304   virtual void operator()(osg::StateSet* stateSet, osg::NodeVisitor*)
 305   {
 306     if (strcmp(mFogEnabled->getStringValue(), "disabled") == 0) {
 307       stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
 308     } else {
 309       stateSet->setMode(GL_FOG, osg::StateAttribute::ON);
 310     }
 311   }
 312 private:
 313   SGSharedPtr<SGPropertyNode> mFogEnabled;
 314 };
 315
 316 // update callback for the switch node guarding that splash
 317 class FGScenerySwitchCallback : public osg::NodeCallback {
 318 public:
 319   virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
 320   {
 321     assert(dynamic_cast<osg::Switch*>(node));
 322     osg::Switch* sw = static_cast<osg::Switch*>(node);
 323
 324     double t = globals->get_sim_time_sec();
 325     bool enabled = 0 < t;
 326     sw->setValue(0, enabled);
 327     if (!enabled)
 328       return;
 329     traverse(node, nv);
 330   }
 331 };
 332
 333 // fog constants.  I'm a little nervous about putting actual code out
 334 // here but it seems to work (?)
 335 static const double m_log01 = -log( 0.01 );
 336 static const double sqrt_m_log01 = sqrt( m_log01 );
 337 static GLfloat fog_exp_density;
 338 static GLfloat fog_exp2_density;
 339 static GLfloat rwy_exp2_punch_through;
 340 static GLfloat taxi_exp2_punch_through;
 341 static GLfloat ground_exp2_punch_through;
 342
 343 // Sky structures
 344 SGSky *thesky;
 345
 346 osg::ref_ptr<osgUtil::SceneView> sceneView = new osgUtil::SceneView;  // This SceneView is used by class FGJpegHttpd ( jpg-httpd.cxx )
 347 static osg::ref_ptr<osg::FrameStamp> mFrameStamp = new osg::FrameStamp;
 348 static osg::ref_ptr<SGUpdateVisitor> mUpdateVisitor= new SGUpdateVisitor;
 349
 350 static osg::ref_ptr<osg::Group> mRealRoot = new osg::Group;
 351
 352 static osg::ref_ptr<osg::Group> mRoot = new osg::Group;
 353
 354 static osg::ref_ptr<osg::CameraView> mCameraView = new osg::CameraView;
 355 static osg::ref_ptr<osg::Camera> mBackGroundCamera = new osg::Camera;
 356
 357 static osg::ref_ptr<osg::Fog> mFog = new osg::Fog;
 358 static osg::ref_ptr<osg::Fog> mRunwayLightingFog = new osg::Fog;
 359 static osg::ref_ptr<osg::Fog> mTaxiLightingFog = new osg::Fog;
 360 static osg::ref_ptr<osg::Fog> mGroundLightingFog = new osg::Fog;
 361
 362 FGRenderer::FGRenderer()
 363 {
 364 #ifdef FG_JPEG_SERVER
 365    jpgRenderFrame = FGRenderer::update;
 366 #endif
 367 }
 368
 369 FGRenderer::~FGRenderer()
 370 {
 371 #ifdef FG_JPEG_SERVER
 372    jpgRenderFrame = NULL;
 373 #endif
 374 }
 375
 376 // Initialize various GL/view parameters
 377 void
 378 FGRenderer::splashinit( void ) {
 379    // Add the splash screen node
 380    mRealRoot->addChild(fgCreateSplashNode());
 381    sceneView->setSceneData(mRealRoot.get());
 382
 383    sceneView->setDefaults(osgUtil::SceneView::COMPILE_GLOBJECTS_AT_INIT);
 384    sceneView->setFrameStamp(mFrameStamp.get());
 385    sceneView->setUpdateVisitor(mUpdateVisitor.get());
 386 }
 387
 388 void
 389 FGRenderer::init( void ) {
 390
 391     osg::initNotifyLevel();
 392
 393     // The number of polygon-offset "units" to place between layers.  In
 394     // principle, one is supposed to be enough.  In practice, I find that
 395     // my hardware/driver requires many more.
 396     osg::PolygonOffset::setUnitsMultiplier(1);
 397     osg::PolygonOffset::setFactorMultiplier(1);
 398
 399     // Go full screen if requested ...
 400     if ( fgGetBool("/sim/startup/fullscreen") )
 401         fgOSFullScreen();
 402
 403     if ( (!strcmp(fgGetString("/sim/rendering/fog"), "disabled")) ||
 404          (!fgGetBool("/sim/rendering/shading"))) {
 405         // if fastest fog requested, or if flat shading force fastest
 406         glHint ( GL_FOG_HINT, GL_FASTEST );
 407     } else if ( !strcmp(fgGetString("/sim/rendering/fog"), "nicest") ) {
 408         glHint ( GL_FOG_HINT, GL_DONT_CARE );
 409     }
 410
 411     glHint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
 412     glHint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
 413     glHint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
 414
 415     mFog->setMode(osg::Fog::EXP2);
 416     mRunwayLightingFog->setMode(osg::Fog::EXP2);
 417     mTaxiLightingFog->setMode(osg::Fog::EXP2);
 418     mGroundLightingFog->setMode(osg::Fog::EXP2);
 419
 420     sceneView->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
 421     sceneView->getCamera()->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
 422
 423
 424     osg::StateSet* stateSet = mRoot->getOrCreateStateSet();
 425
 426     stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
 427
 428     stateSet->setAttribute(new osg::Depth(osg::Depth::LESS));
 429     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
 430
 431     stateSet->setAttribute(new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01));
 432     stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::OFF);
 433     stateSet->setAttribute(new osg::BlendFunc);
 434     stateSet->setMode(GL_BLEND, osg::StateAttribute::OFF);
 435
 436     stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
 437
 438     // this will be set below
 439     stateSet->setMode(GL_NORMALIZE, osg::StateAttribute::OFF);
 440
 441     osg::Material* material = new osg::Material;
 442     stateSet->setAttribute(material);
 443
 444     stateSet->setTextureAttribute(0, new osg::TexEnv);
 445     stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
 446
 447
 448 //     stateSet->setAttribute(new osg::CullFace(osg::CullFace::BACK));
 449 //     stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
 450
 451     // this is the topmost scenegraph node for osg
 452     mBackGroundCamera->addChild(thesky->getPreRoot());
 453     mBackGroundCamera->setClearMask(0);
 454
 455     GLbitfield inheritanceMask = osg::CullSettings::ALL_VARIABLES;
 456     inheritanceMask &= ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE;
 457     inheritanceMask &= ~osg::CullSettings::NEAR_FAR_RATIO;
 458     inheritanceMask &= ~osg::CullSettings::CULLING_MODE;
 459     mBackGroundCamera->setInheritanceMask(inheritanceMask);
 460     mBackGroundCamera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
 461     mBackGroundCamera->setCullingMode(osg::CullSettings::NO_CULLING);
 462     mBackGroundCamera->setRenderOrder(osg::Camera::NESTED_RENDER);
 463
 464     stateSet = mBackGroundCamera->getOrCreateStateSet();
 465     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
 466
 467     osg::Group* sceneGroup = new osg::Group;
 468     sceneGroup->addChild(globals->get_scenery()->get_scene_graph());
 469     sceneGroup->addChild(thesky->getCloudRoot());
 470
 471     stateSet = sceneGroup->getOrCreateStateSet();
 472     stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
 473     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
 474
 475     // need to update the light on every frame
 476     osg::LightSource* lightSource = new osg::LightSource;
 477     lightSource->setUpdateCallback(new FGLightSourceUpdateCallback);
 478     // relative because of CameraView being just a clever transform node
 479     lightSource->setReferenceFrame(osg::LightSource::RELATIVE_RF);
 480     lightSource->setLocalStateSetModes(osg::StateAttribute::ON);
 481     mRoot->addChild(lightSource);
 482
 483     lightSource->addChild(mBackGroundCamera.get());
 484     lightSource->addChild(sceneGroup);
 485
 486
 487     stateSet = globals->get_scenery()->get_scene_graph()->getOrCreateStateSet();
 488     stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
 489     stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
 490     stateSet->setMode(GL_LIGHTING, osg::StateAttribute::ON);
 491     stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
 492
 493     // enable disable specular highlights.
 494     // is the place where we might plug in an other fragment shader ...
 495     osg::LightModel* lightModel = new osg::LightModel;
 496     lightModel->setUpdateCallback(new FGLightModelUpdateCallback);
 497     stateSet->setAttribute(lightModel);
 498
 499     // switch to enable wireframe
 500     osg::PolygonMode* polygonMode = new osg::PolygonMode;
 501     polygonMode->setUpdateCallback(new FGWireFrameModeUpdateCallback);
 502     stateSet->setAttributeAndModes(polygonMode);
 503
 504     // scene fog handling
 505     stateSet->setAttributeAndModes(mFog.get());
 506     stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
 507
 508     // plug in the GUI
 509     osg::Camera* guiCamera = new osg::Camera;
 510     guiCamera->setRenderOrder(osg::Camera::POST_RENDER, 100);
 511     guiCamera->setClearMask(0);
 512     inheritanceMask = osg::CullSettings::ALL_VARIABLES;
 513     inheritanceMask &= ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE;
 514     inheritanceMask &= ~osg::CullSettings::CULLING_MODE;
 515     guiCamera->setInheritanceMask(inheritanceMask);
 516     guiCamera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
 517     guiCamera->setCullingMode(osg::CullSettings::NO_CULLING);
 518     osg::Geode* geode = new osg::Geode;
 519     geode->addDrawable(new SGPuDrawable);
 520     geode->addDrawable(new SGHUDAndPanelDrawable);
 521     guiCamera->addChild(geode);
 522
 523     // this one contains all lights, here we set the light states we did
 524     // in the plib case with plain OpenGL
 525     osg::Group* lightGroup = new osg::Group;
 526     sceneGroup->addChild(lightGroup);
 527     lightGroup->addChild(globals->get_scenery()->get_gnd_lights_root());
 528     lightGroup->addChild(globals->get_scenery()->get_vasi_lights_root());
 529     lightGroup->addChild(globals->get_scenery()->get_rwy_lights_root());
 530     lightGroup->addChild(globals->get_scenery()->get_taxi_lights_root());
 531
 532     stateSet = globals->get_scenery()->get_gnd_lights_root()->getOrCreateStateSet();
 533     stateSet->setAttributeAndModes(mFog.get());
 534     stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
 535     stateSet = globals->get_scenery()->get_vasi_lights_root()->getOrCreateStateSet();
 536     stateSet->setAttributeAndModes(mRunwayLightingFog.get());
 537     stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
 538     stateSet = globals->get_scenery()->get_rwy_lights_root()->getOrCreateStateSet();
 539     stateSet->setAttributeAndModes(mRunwayLightingFog.get());
 540     stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
 541     stateSet = globals->get_scenery()->get_taxi_lights_root()->getOrCreateStateSet();
 542     stateSet->setAttributeAndModes(mTaxiLightingFog.get());
 543     stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
 544
 545     mCameraView->addChild(mRoot.get());
 546
 547     osg::Switch* sw = new osg::Switch;
 548     sw->setUpdateCallback(new FGScenerySwitchCallback);
 549     sw->addChild(mCameraView.get());
 550
 551     mRealRoot->addChild(sw);
 552     mRealRoot->addChild(FGCreateRedoutNode());
 553     mRealRoot->addChild(guiCamera);
 554 }
 555
 556
 557 // Update all Visuals (redraws anything graphics related)
 558 void
 559 FGRenderer::update( bool refresh_camera_settings ) {
 560     bool scenery_loaded = fgGetBool("sim/sceneryloaded")
 561                           || fgGetBool("sim/sceneryloaded-override");
 562
 563     if ( idle_state < 1000 || !scenery_loaded ) {
 564         fgSetDouble("/sim/startup/splash-alpha", 1.0);
 565
 566         // Keep resetting sim time while the sim is initializing
 567         globals->set_sim_time_sec( 0.0 );
 568
 569         // the splash screen is now in the scenegraph
 570         sceneView->update();
 571         sceneView->cull();
 572         sceneView->draw();
 573
 574         return;
 575     }
 576
 577     // Fade out the splash screen over the first three seconds.
 578     double sAlpha = SGMiscd::max(0, (2.5 - globals->get_sim_time_sec()) / 2.5);
 579     fgSetDouble("/sim/startup/splash-alpha", sAlpha);
 580
 581     bool skyblend = fgGetBool("/sim/rendering/skyblend");
 582     bool use_point_sprites = fgGetBool("/sim/rendering/point-sprites");
 583     bool enhanced_lighting = fgGetBool("/sim/rendering/enhanced-lighting");
 584     bool distance_attenuation
 585         = fgGetBool("/sim/rendering/distance-attenuation");
 586     // OSGFIXME
 587     SGConfigureDirectionalLights( use_point_sprites, enhanced_lighting,
 588                                   distance_attenuation );
 589
 590     static const SGPropertyNode *groundlevel_nearplane
 591         = fgGetNode("/sim/current-view/ground-level-nearplane-m");
 592
 593     FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
 594
 595     // update fog params
 596     double actual_visibility;
 597     if (fgGetBool("/environment/clouds/status")) {
 598         actual_visibility = thesky->get_visibility();
 599     } else {
 600         actual_visibility = fgGetDouble("/environment/visibility-m");
 601     }
 602
 603     static double last_visibility = -9999;
 604     if ( actual_visibility != last_visibility ) {
 605         last_visibility = actual_visibility;
 606
 607         fog_exp_density = m_log01 / actual_visibility;
 608         fog_exp2_density = sqrt_m_log01 / actual_visibility;
 609         ground_exp2_punch_through = sqrt_m_log01 / (actual_visibility * 1.5);
 610         if ( actual_visibility < 8000 ) {
 611             rwy_exp2_punch_through = sqrt_m_log01 / (actual_visibility * 2.5);
 612             taxi_exp2_punch_through = sqrt_m_log01 / (actual_visibility * 1.5);
 613         } else {
 614             rwy_exp2_punch_through = sqrt_m_log01 / ( 8000 * 2.5 );
 615             taxi_exp2_punch_through = sqrt_m_log01 / ( 8000 * 1.5 );
 616         }
 617         mFog->setDensity(fog_exp2_density);
 618         mRunwayLightingFog->setDensity(rwy_exp2_punch_through);
 619         mTaxiLightingFog->setDensity(taxi_exp2_punch_through);
 620         mGroundLightingFog->setDensity(ground_exp2_punch_through);
 621     }
 622
 623     // idle_state is now 1000 meaning we've finished all our
 624     // initializations and are running the main loop, so this will
 625     // now work without seg faulting the system.
 626
 627     FGViewer *current__view = globals->get_current_view();
 628     // Force update of center dependent values ...
 629     current__view->set_dirty();
 630
 631     if ( refresh_camera_settings ) {
 632         // update view port
 633         resize( fgGetInt("/sim/startup/xsize"),
 634                 fgGetInt("/sim/startup/ysize") );
 635
 636         SGVec3d position = current__view->getViewPosition();
 637         SGQuatd attitude = current__view->getViewOrientation();
 638         SGVec3d osgPosition = attitude.transform(-position);
 639         mCameraView->setPosition(osgPosition.osg());
 640         mCameraView->setAttitude(inverse(attitude).osg());
 641     }
 642
 643     if ( skyblend ) {
 644         if ( fgGetBool("/sim/rendering/textures") ) {
 645             SGVec4f clearColor(l->adj_fog_color());
 646             sceneView->getCamera()->setClearColor(clearColor.osg());
 647         }
 648     } else {
 649         SGVec4f clearColor(l->sky_color());
 650         sceneView->getCamera()->setClearColor(clearColor.osg());
 651     }
 652
 653     // update fog params if visibility has changed
 654     double visibility_meters = fgGetDouble("/environment/visibility-m");
 655     thesky->set_visibility(visibility_meters);
 656
 657     thesky->modify_vis( cur_fdm_state->get_Altitude() * SG_FEET_TO_METER,
 658                         ( global_multi_loop * fgGetInt("/sim/speed-up") )
 659                         / (double)fgGetInt("/sim/model-hz") );
 660
 661     // update the sky dome
 662     if ( skyblend ) {
 663
 664         // The sun and moon distances are scaled down versions
 665         // of the actual distance to get both the moon and the sun
 666         // within the range of the far clip plane.
 667         // Moon distance:    384,467 kilometers
 668         // Sun distance: 150,000,000 kilometers
 669
 670         double sun_horiz_eff, moon_horiz_eff;
 671         if (fgGetBool("/sim/rendering/horizon-effect")) {
 672            sun_horiz_eff = 0.67+pow(0.5+cos(l->get_sun_angle())*2/2, 0.33)/3;
 673            moon_horiz_eff = 0.67+pow(0.5+cos(l->get_moon_angle())*2/2, 0.33)/3;
 674         } else {
 675            sun_horiz_eff = moon_horiz_eff = 1.0;
 676         }
 677
 678         static SGSkyState sstate;
 679
 680         sstate.view_pos  = toVec3f(current__view->get_view_pos());
 681         sstate.zero_elev = toVec3f(current__view->get_zero_elev());
 682         sstate.view_up   = current__view->get_world_up();
 683         sstate.lon       = current__view->getLongitude_deg()
 684                             * SGD_DEGREES_TO_RADIANS;
 685         sstate.lat       = current__view->getLatitude_deg()
 686                             * SGD_DEGREES_TO_RADIANS;
 687         sstate.alt       = current__view->getAltitudeASL_ft()
 688                             * SG_FEET_TO_METER;
 689         sstate.spin      = l->get_sun_rotation();
 690         sstate.gst       = globals->get_time_params()->getGst();
 691         sstate.sun_ra    = globals->get_ephem()->getSunRightAscension();
 692         sstate.sun_dec   = globals->get_ephem()->getSunDeclination();
 693         sstate.sun_dist  = 50000.0 * sun_horiz_eff;
 694         sstate.moon_ra   = globals->get_ephem()->getMoonRightAscension();
 695         sstate.moon_dec  = globals->get_ephem()->getMoonDeclination();
 696         sstate.moon_dist = 40000.0 * moon_horiz_eff;
 697         sstate.sun_angle = l->get_sun_angle();
 698
 699
 700         /*
 701          SG_LOG( SG_GENERAL, SG_BULK, "thesky->repaint() sky_color = "
 702          << l->sky_color()[0] << " "
 703          << l->sky_color()[1] << " "
 704          << l->sky_color()[2] << " "
 705          << l->sky_color()[3] );
 706         SG_LOG( SG_GENERAL, SG_BULK, "    fog = "
 707          << l->fog_color()[0] << " "
 708          << l->fog_color()[1] << " "
 709          << l->fog_color()[2] << " "
 710          << l->fog_color()[3] );
 711         SG_LOG( SG_GENERAL, SG_BULK,
 712                 "    sun_angle = " << l->sun_angle
 713          << "    moon_angle = " << l->moon_angle );
 714         */
 715
 716         static SGSkyColor scolor;
 717
 718         scolor.sky_color   = SGVec3f(l->sky_color().data());
 719         scolor.fog_color   = SGVec3f(l->adj_fog_color().data());
 720         scolor.cloud_color = SGVec3f(l->cloud_color().data());
 721         scolor.sun_angle   = l->get_sun_angle();
 722         scolor.moon_angle  = l->get_moon_angle();
 723         scolor.nplanets    = globals->get_ephem()->getNumPlanets();
 724         scolor.nstars      = globals->get_ephem()->getNumStars();
 725         scolor.planet_data = globals->get_ephem()->getPlanets();
 726         scolor.star_data   = globals->get_ephem()->getStars();
 727
 728         thesky->reposition( sstate, delta_time_sec );
 729         thesky->repaint( scolor );
 730
 731         /*
 732         SG_LOG( SG_GENERAL, SG_BULK,
 733                 "thesky->reposition( view_pos = " << view_pos[0] << " "
 734          << view_pos[1] << " " << view_pos[2] );
 735         SG_LOG( SG_GENERAL, SG_BULK,
 736                 "    zero_elev = " << zero_elev[0] << " "
 737          << zero_elev[1] << " " << zero_elev[2]
 738          << " lon = " << cur_fdm_state->get_Longitude()
 739          << " lat = " << cur_fdm_state->get_Latitude() );
 740         SG_LOG( SG_GENERAL, SG_BULK,
 741                 "    sun_rot = " << l->get_sun_rotation
 742          << " gst = " << SGTime::cur_time_params->getGst() );
 743         SG_LOG( SG_GENERAL, SG_BULK,
 744              "    sun ra = " << globals->get_ephem()->getSunRightAscension()
 745           << " sun dec = " << globals->get_ephem()->getSunDeclination()
 746           << " moon ra = " << globals->get_ephem()->getMoonRightAscension()
 747           << " moon dec = " << globals->get_ephem()->getMoonDeclination() );
 748         */
 749
 750         //OSGFIXME
 751 //         shadows->setupShadows(
 752 //           current__view->getLongitude_deg(),
 753 //           current__view->getLatitude_deg(),
 754 //           globals->get_time_params()->getGst(),
 755 //           globals->get_ephem()->getSunRightAscension(),
 756 //           globals->get_ephem()->getSunDeclination(),
 757 //           l->get_sun_angle());
 758
 759     }
 760
 761     if ( strcmp(fgGetString("/sim/rendering/fog"), "disabled") ) {
 762         SGVec4f color(l->adj_fog_color());
 763         mFog->setColor(color.osg());
 764         mRunwayLightingFog->setColor(color.osg());
 765         mTaxiLightingFog->setColor(color.osg());
 766         mGroundLightingFog->setColor(color.osg());
 767     }
 768
 769
 770 //     sgEnviro.setLight(l->adj_fog_color());
 771
 772     // texture parameters
 773     glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST );
 774
 775     double agl = current__view->getAltitudeASL_ft()*SG_FEET_TO_METER
 776       - current__view->getSGLocation()->get_cur_elev_m();
 777
 778     float scene_nearplane, scene_farplane;
 779     if ( agl > 10.0 ) {
 780         scene_nearplane = 10.0f;
 781         scene_farplane = 120000.0f;
 782     } else {
 783         scene_nearplane = groundlevel_nearplane->getDoubleValue();
 784         scene_farplane = 120000.0f;
 785     }
 786     setNearFar( scene_nearplane, scene_farplane );
 787
 788 //     sgEnviro.startOfFrame(current__view->get_view_pos(),
 789 //         current__view->get_world_up(),
 790 //         current__view->getLongitude_deg(),
 791 //         current__view->getLatitude_deg(),
 792 //         current__view->getAltitudeASL_ft() * SG_FEET_TO_METER,
 793 //         delta_time_sec);
 794
 795     // OSGFIXME
 796 //     sgEnviro.drawLightning();
 797
 798 //        double current_view_origin_airspeed_horiz_kt =
 799 //         fgGetDouble("/velocities/airspeed-kt", 0.0)
 800 //                        * cos( fgGetDouble("/orientation/pitch-deg", 0.0)
 801 //                                * SGD_DEGREES_TO_RADIANS);
 802        // TODO:find the real view speed, not the AC one
 803 //     sgEnviro.drawPrecipitation(
 804 //         fgGetDouble("/environment/metar/rain-norm", 0.0),
 805 //         fgGetDouble("/environment/metar/snow-norm", 0.0),
 806 //         fgGetDouble("/environment/metar/hail-norm", 0.0),
 807 //         current__view->getPitch_deg() + current__view->getPitchOffset_deg(),
 808 //         current__view->getRoll_deg() + current__view->getRollOffset_deg(),
 809 //         - current__view->getHeadingOffset_deg(),
 810 //                current_view_origin_airspeed_horiz_kt
 811 //                );
 812
 813     // OSGFIXME
 814 //     if( is_internal )
 815 //         shadows->endOfFrame();
 816
 817     // need to call the update visitor once
 818     globals->get_aircraft_model()->select( true );
 819     FGTileMgr::set_tile_filter( true );
 820     mFrameStamp->setReferenceTime(globals->get_sim_time_sec());
 821     mFrameStamp->setFrameNumber(1+mFrameStamp->getFrameNumber());
 822     mFrameStamp->setCalendarTime(*globals->get_time_params()->getGmt());
 823     mUpdateVisitor->setViewData(current__view->getViewPosition(),
 824                                 current__view->getViewOrientation());
 825     mUpdateVisitor->setSceneryCenter(SGVec3d(0, 0, 0));
 826     SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
 827     mUpdateVisitor->setLight(direction, l->scene_ambient(),
 828                              l->scene_diffuse(), l->scene_specular());
 829     mUpdateVisitor->setVisibility(actual_visibility);
 830
 831     if (fgGetBool("/sim/panel-hotspots"))
 832       sceneView->setCullMask(sceneView->getCullMask()|SG_NODEMASK_PICK_BIT);
 833     else
 834       sceneView->setCullMask(sceneView->getCullMask()&(~SG_NODEMASK_PICK_BIT));
 835
 836     sceneView->update();
 837     sceneView->cull();
 838     sceneView->draw();
 839 }
 840
 841
 842
 843 // options.cxx needs to see this for toggle_panel()
 844 // Handle new window size or exposure
 845 void
 846 FGRenderer::resize( int width, int height ) {
 847     int view_h;
 848
 849     if ( (!fgGetBool("/sim/virtual-cockpit"))
 850          && fgPanelVisible() && idle_state == 1000 ) {
 851         view_h = (int)(height * (globals->get_current_panel()->getViewHeight() -
 852                              globals->get_current_panel()->getYOffset()) / 768.0);
 853     } else {
 854         view_h = height;
 855     }
 856
 857     sceneView->getViewport()->setViewport(0, height - view_h, width, view_h);
 858
 859     static int lastwidth = 0;
 860     static int lastheight = 0;
 861     if (width != lastwidth)
 862         fgSetInt("/sim/startup/xsize", lastwidth = width);
 863     if (height != lastheight)
 864         fgSetInt("/sim/startup/ysize", lastheight = height);
 865
 866     guiInitMouse(width, height);
 867
 868     // for all views
 869     FGViewMgr *viewmgr = globals->get_viewmgr();
 870     if (viewmgr) {
 871       for ( int i = 0; i < viewmgr->size(); ++i ) {
 872         viewmgr->get_view(i)->
 873           set_aspect_ratio((float)view_h / (float)width);
 874       }
 875
 876       setFOV( viewmgr->get_current_view()->get_h_fov(),
 877               viewmgr->get_current_view()->get_v_fov() );
 878     }
 879 }
 880
 881
 882 // These are wrapper functions around ssgSetNearFar() and ssgSetFOV()
 883 // which will post process and rewrite the resulting frustum if we
 884 // want to do asymmetric view frustums.
 885
 886 static void fgHackFrustum() {
 887
 888     // specify a percent of the configured view frustum to actually
 889     // display.  This is a bit of a hack to achieve asymmetric view
 890     // frustums.  For instance, if you want to display two monitors
 891     // side by side, you could specify each with a double fov, a 0.5
 892     // aspect ratio multiplier, and then the left side monitor would
 893     // have a left_pct = 0.0, a right_pct = 0.5, a bottom_pct = 0.0,
 894     // and a top_pct = 1.0.  The right side monitor would have a
 895     // left_pct = 0.5 and a right_pct = 1.0.
 896
 897     static SGPropertyNode *left_pct
 898         = fgGetNode("/sim/current-view/frustum-left-pct");
 899     static SGPropertyNode *right_pct
 900         = fgGetNode("/sim/current-view/frustum-right-pct");
 901     static SGPropertyNode *bottom_pct
 902         = fgGetNode("/sim/current-view/frustum-bottom-pct");
 903     static SGPropertyNode *top_pct
 904         = fgGetNode("/sim/current-view/frustum-top-pct");
 905
 906     double left, right;
 907     double bottom, top;
 908     double zNear, zFar;
 909     sceneView->getProjectionMatrixAsFrustum(left, right, bottom, top, zNear, zFar);
 910     // cout << " l = " << f->getLeft()
 911     //      << " r = " << f->getRight()
 912     //      << " b = " << f->getBot()
 913     //      << " t = " << f->getTop()
 914     //      << " n = " << f->getNear()
 915     //      << " f = " << f->getFar()
 916     //      << endl;
 917
 918     double width = right - left;
 919     double height = top - bottom;
 920
 921     double l, r, t, b;
 922
 923     if ( left_pct != NULL ) {
 924         l = left + width * left_pct->getDoubleValue();
 925     } else {
 926         l = left;
 927     }
 928
 929     if ( right_pct != NULL ) {
 930         r = left + width * right_pct->getDoubleValue();
 931     } else {
 932         r = right;
 933     }
 934
 935     if ( bottom_pct != NULL ) {
 936         b = bottom + height * bottom_pct->getDoubleValue();
 937     } else {
 938         b = bottom;
 939     }
 940
 941     if ( top_pct != NULL ) {
 942         t = bottom + height * top_pct->getDoubleValue();
 943     } else {
 944         t = top;
 945     }
 946
 947     sceneView->setProjectionMatrixAsFrustum(l, r, b, t, zNear, zFar);
 948 }
 949
 950
 951 // we need some static storage space for these values.  However, we
 952 // can't store it in a renderer class object because the functions
 953 // that manipulate these are static.  They are static so they can
 954 // interface to the display callback system.  There's probably a
 955 // better way, there has to be a better way, but I'm not seeing it
 956 // right now.
 957 static float fov_width = 55.0;
 958 static float fov_height = 42.0;
 959 static float fov_near = 1.0;
 960 static float fov_far = 1000.0;
 961
 962
 963 /** FlightGear code should use this routine to set the FOV rather than
 964  *  calling the ssg routine directly
 965  */
 966 void FGRenderer::setFOV( float w, float h ) {
 967     fov_width = w;
 968     fov_height = h;
 969
 970     sceneView->setProjectionMatrixAsPerspective(fov_height,
 971                                                 fov_width/fov_height,
 972                                                 fov_near, fov_far);
 973     // fully specify the view frustum before hacking it (so we don't
 974     // accumulate hacked effects
 975     fgHackFrustum();
 976 //     sgEnviro.setFOV( w, h );
 977 }
 978
 979
 980 /** FlightGear code should use this routine to set the Near/Far clip
 981  *  planes rather than calling the ssg routine directly
 982  */
 983 void FGRenderer::setNearFar( float n, float f ) {
 984 // OSGFIXME: we have currently too much z-buffer fights
 985 n = 0.1;
 986     fov_near = n;
 987     fov_far = f;
 988
 989     sceneView->setProjectionMatrixAsPerspective(fov_height,
 990                                                 fov_width/fov_height,
 991                                                 fov_near, fov_far);
 992
 993     // fully specify the view frustum before hacking it (so we don't
 994     // accumulate hacked effects
 995     fgHackFrustum();
 996 }
 997
 998 bool
 999 FGRenderer::pick( unsigned x, unsigned y,
1000                   std::vector<SGSceneryPick>& pickList )
1001 {
1002   // wipe out the return ...
1003   pickList.resize(0);
1004
1005   // we can get called early ...
1006   if (!sceneView.valid())
1007     return false;
1008
1009   osg::Node* sceneData = globals->get_scenery()->get_scene_graph();
1010   if (!sceneData)
1011     return false;
1012   osg::Viewport* viewport = sceneView->getViewport();
1013   if (!viewport)
1014     return false;
1015
1016   // don't know why, but the update has partly happened somehow,
1017   // so update the scenery part of the viewer
1018   FGViewer *current_view = globals->get_current_view();
1019   // Force update of center dependent values ...
1020   current_view->set_dirty();
1021   SGVec3d position = current_view->getViewPosition();
1022   SGQuatd attitude = current_view->getViewOrientation();
1023   SGVec3d osgPosition = attitude.transform(-position);
1024   mCameraView->setPosition(osgPosition.osg());
1025   mCameraView->setAttitude(inverse(attitude).osg());
1026
1027   osg::Matrix projection(sceneView->getProjectionMatrix());
1028   osg::Matrix modelview(sceneView->getViewMatrix());
1029
1030   osg::NodePathList nodePath = sceneData->getParentalNodePaths();
1031   // modify the view matrix so that it accounts for this nodePath's
1032   // accumulated transform
1033   if (!nodePath.empty())
1034     modelview.preMult(computeLocalToWorld(nodePath.front()));
1035
1036   // swap the y values ...
1037   y = viewport->height() - y;
1038   // set up the pick visitor
1039   osgUtil::PickVisitor pickVisitor(viewport, projection, modelview, x, y);
1040   sceneData->accept(pickVisitor);
1041   if (!pickVisitor.hits())
1042     return false;
1043
1044   // collect all interaction callbacks on the pick ray.
1045   // They get stored in the pickCallbacks list where they are sorted back
1046   // to front and croasest to finest wrt the scenery node they are attached to
1047   osgUtil::PickVisitor::LineSegmentHitListMap::const_iterator mi;
1048   for (mi = pickVisitor.getSegHitList().begin();
1049        mi != pickVisitor.getSegHitList().end();
1050        ++mi) {
1051     osgUtil::IntersectVisitor::HitList::const_iterator hi;
1052     for (hi = mi->second.begin(); hi != mi->second.end(); ++hi) {
1053       // ok, go back the nodes and ask for intersection callbacks,
1054       // execute them in top down order
1055       const osg::NodePath& np = hi->getNodePath();
1056       osg::NodePath::const_reverse_iterator npi;
1057       for (npi = np.rbegin(); npi != np.rend(); ++npi) {
1058         SGSceneUserData* ud = SGSceneUserData::getSceneUserData(*npi);
1059         if (!ud)
1060           continue;
1061         for (unsigned i = 0; i < ud->getNumPickCallbacks(); ++i) {
1062           SGPickCallback* pickCallback = ud->getPickCallback(i);
1063           if (!pickCallback)
1064             continue;
1065           SGSceneryPick sceneryPick;
1066           /// note that this is done totally in doubles instead of
1067           /// just using getWorldIntersectionPoint
1068           osg::Vec3d localPt = hi->getLocalIntersectPoint();
1069           sceneryPick.info.local = SGVec3d(localPt);
1070           if (hi->getMatrix())
1071             sceneryPick.info.wgs84 = SGVec3d(localPt*(*hi->getMatrix()));
1072           else
1073             sceneryPick.info.wgs84 = SGVec3d(localPt);
1074           sceneryPick.callback = pickCallback;
1075           pickList.push_back(sceneryPick);
1076         }
1077       }
1078     }
1079   }
1080
1081   return !pickList.empty();
1082 }
1083
1084 // end of renderer.cxx
1085