1 // renderer.cxx -- top level sim routines
3 // Written by Curtis Olson, started May 1997.
4 // This file contains parts of main.cxx prior to october 2004
6 // Copyright (C) 1997 - 2002 Curtis L. Olson - http://www.flightgear.org/~curt
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.
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.
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.
30 #include <simgear/compiler.h>
32 #include <osg/ref_ptr>
33 #include <osg/AlphaFunc>
34 #include <osg/BlendFunc>
36 #include <osg/CullFace>
42 #include <osg/LightModel>
43 #include <osg/LightSource>
44 #include <osg/Material>
46 #include <osg/NodeCallback>
48 #include <osg/PolygonMode>
49 #include <osg/PolygonOffset>
50 #include <osg/Version>
53 #include <osgUtil/LineSegmentIntersector>
55 #include <osg/io_utils>
56 #include <osgDB/WriteFile>
58 #include <simgear/math/SGMath.hxx>
59 #include <simgear/screen/extensions.hxx>
60 #include <simgear/scene/material/matlib.hxx>
61 #include <simgear/scene/model/animation.hxx>
62 #include <simgear/scene/model/placement.hxx>
63 #include <simgear/scene/sky/sky.hxx>
64 #include <simgear/scene/util/SGUpdateVisitor.hxx>
65 #include <simgear/scene/util/RenderConstants.hxx>
66 #include <simgear/scene/tgdb/GroundLightManager.hxx>
67 #include <simgear/scene/tgdb/pt_lights.hxx>
68 #include <simgear/props/props.hxx>
69 #include <simgear/timing/sg_time.hxx>
70 #include <simgear/ephemeris/ephemeris.hxx>
71 #include <simgear/math/sg_random.h>
73 #include <simgear/screen/jpgfactory.hxx>
76 #include <simgear/environment/visual_enviro.hxx>
78 #include <Time/light.hxx>
79 #include <Time/light.hxx>
80 #include <Aircraft/aircraft.hxx>
81 #include <Cockpit/panel.hxx>
82 #include <Cockpit/cockpit.hxx>
83 #include <Cockpit/hud.hxx>
84 #include <Model/panelnode.hxx>
85 #include <Model/modelmgr.hxx>
86 #include <Model/acmodel.hxx>
87 #include <Scenery/scenery.hxx>
88 #include <Scenery/redout.hxx>
89 #include <Scenery/tilemgr.hxx>
90 #include <GUI/new_gui.hxx>
91 #include <Instrumentation/instrument_mgr.hxx>
92 #include <Instrumentation/HUD/HUD.hxx>
93 #include <Environment/precipitation_mgr.hxx>
95 #include <Include/general.hxx>
97 #include "renderer.hxx"
99 #include "CameraGroup.hxx"
100 #include "FGEventHandler.hxx"
102 // XXX Make this go away when OSG 2.2 is released.
103 #if (FG_OSG_VERSION >= 21004)
104 #define UPDATE_VISITOR_IN_VIEWER 1
108 using namespace simgear;
109 using namespace flightgear;
111 class FGHintUpdateCallback : public osg::StateAttribute::Callback {
113 FGHintUpdateCallback(const char* configNode) :
114 mConfigNode(fgGetNode(configNode, true))
116 virtual void operator()(osg::StateAttribute* stateAttribute,
119 assert(dynamic_cast<osg::Hint*>(stateAttribute));
120 osg::Hint* hint = static_cast<osg::Hint*>(stateAttribute);
122 const char* value = mConfigNode->getStringValue();
124 hint->setMode(GL_DONT_CARE);
125 else if (0 == strcmp(value, "nicest"))
126 hint->setMode(GL_NICEST);
127 else if (0 == strcmp(value, "fastest"))
128 hint->setMode(GL_FASTEST);
130 hint->setMode(GL_DONT_CARE);
133 SGSharedPtr<SGPropertyNode> mConfigNode;
137 class SGPuDrawable : public osg::Drawable {
141 // Dynamic stuff, do not store geometry
142 setUseDisplayList(false);
144 osg::StateSet* stateSet = getOrCreateStateSet();
145 stateSet->setRenderBinDetails(1001, "RenderBin");
146 // speed optimization?
147 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
148 // We can do translucent menus, so why not. :-)
149 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
150 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
151 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
153 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
155 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
156 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
158 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
159 { drawImplementation(*renderInfo.getState()); }
160 void drawImplementation(osg::State& state) const
162 state.setActiveTextureUnit(0);
163 state.setClientActiveTextureUnit(0);
165 state.disableAllVertexArrays();
167 glPushAttrib(GL_ALL_ATTRIB_BITS);
168 glPushClientAttrib(~0u);
176 virtual osg::Object* cloneType() const { return new SGPuDrawable; }
177 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGPuDrawable; }
182 class SGHUDAndPanelDrawable : public osg::Drawable {
184 SGHUDAndPanelDrawable()
186 // Dynamic stuff, do not store geometry
187 setUseDisplayList(false);
189 osg::StateSet* stateSet = getOrCreateStateSet();
190 stateSet->setRenderBinDetails(1000, "RenderBin");
192 // speed optimization?
193 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
194 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
195 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
196 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
197 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
199 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
201 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
202 { drawImplementation(*renderInfo.getState()); }
203 void drawImplementation(osg::State& state) const
205 state.setActiveTextureUnit(0);
206 state.setClientActiveTextureUnit(0);
207 state.disableAllVertexArrays();
209 glPushAttrib(GL_ALL_ATTRIB_BITS);
210 glPushClientAttrib(~0u);
212 fgCockpitUpdate(&state);
214 FGInstrumentMgr *instr = static_cast<FGInstrumentMgr*>(globals->get_subsystem("instrumentation"));
215 HUD *hud = static_cast<HUD*>(instr->get_subsystem("hud"));
218 // update the panel subsystem
219 if ( globals->get_current_panel() != NULL )
220 globals->get_current_panel()->update(state);
221 // We don't need a state here - can be safely removed when we can pick
230 virtual osg::Object* cloneType() const { return new SGHUDAndPanelDrawable; }
231 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGHUDAndPanelDrawable; }
236 class FGLightSourceUpdateCallback : public osg::NodeCallback {
238 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
240 assert(dynamic_cast<osg::LightSource*>(node));
241 osg::LightSource* lightSource = static_cast<osg::LightSource*>(node);
242 osg::Light* light = lightSource->getLight();
244 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
245 light->setAmbient(l->scene_ambient().osg());
246 light->setDiffuse(l->scene_diffuse().osg());
247 light->setSpecular(l->scene_specular().osg());
248 SGVec4f position(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2], 0);
249 light->setPosition(position.osg());
250 SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
251 light->setDirection(direction.osg());
252 light->setSpotExponent(0);
253 light->setSpotCutoff(180);
254 light->setConstantAttenuation(1);
255 light->setLinearAttenuation(0);
256 light->setQuadraticAttenuation(0);
262 class FGWireFrameModeUpdateCallback : public osg::StateAttribute::Callback {
264 FGWireFrameModeUpdateCallback() :
265 mWireframe(fgGetNode("/sim/rendering/wireframe"))
267 virtual void operator()(osg::StateAttribute* stateAttribute,
270 assert(dynamic_cast<osg::PolygonMode*>(stateAttribute));
271 osg::PolygonMode* polygonMode;
272 polygonMode = static_cast<osg::PolygonMode*>(stateAttribute);
274 if (mWireframe->getBoolValue())
275 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
276 osg::PolygonMode::LINE);
278 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
279 osg::PolygonMode::FILL);
282 SGSharedPtr<SGPropertyNode> mWireframe;
285 class FGLightModelUpdateCallback : public osg::StateAttribute::Callback {
287 FGLightModelUpdateCallback() :
288 mHighlights(fgGetNode("/sim/rendering/specular-highlight"))
290 virtual void operator()(osg::StateAttribute* stateAttribute,
293 assert(dynamic_cast<osg::LightModel*>(stateAttribute));
294 osg::LightModel* lightModel;
295 lightModel = static_cast<osg::LightModel*>(stateAttribute);
298 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
299 lightModel->setAmbientIntensity(l->scene_ambient().osg());
301 lightModel->setAmbientIntensity(osg::Vec4(0, 0, 0, 1));
303 lightModel->setTwoSided(true);
304 lightModel->setLocalViewer(false);
306 if (mHighlights->getBoolValue()) {
307 lightModel->setColorControl(osg::LightModel::SEPARATE_SPECULAR_COLOR);
309 lightModel->setColorControl(osg::LightModel::SINGLE_COLOR);
313 SGSharedPtr<SGPropertyNode> mHighlights;
316 class FGFogEnableUpdateCallback : public osg::StateSet::Callback {
318 FGFogEnableUpdateCallback() :
319 mFogEnabled(fgGetNode("/sim/rendering/fog"))
321 virtual void operator()(osg::StateSet* stateSet, osg::NodeVisitor*)
323 if (strcmp(mFogEnabled->getStringValue(), "disabled") == 0) {
324 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
326 stateSet->setMode(GL_FOG, osg::StateAttribute::ON);
330 SGSharedPtr<SGPropertyNode> mFogEnabled;
333 class FGFogUpdateCallback : public osg::StateAttribute::Callback {
335 virtual void operator () (osg::StateAttribute* sa, osg::NodeVisitor* nv)
337 assert(dynamic_cast<SGUpdateVisitor*>(nv));
338 assert(dynamic_cast<osg::Fog*>(sa));
339 SGUpdateVisitor* updateVisitor = static_cast<SGUpdateVisitor*>(nv);
340 osg::Fog* fog = static_cast<osg::Fog*>(sa);
341 fog->setMode(osg::Fog::EXP2);
342 fog->setColor(updateVisitor->getFogColor().osg());
343 fog->setDensity(updateVisitor->getFogExp2Density());
347 // update callback for the switch node guarding that splash
348 class FGScenerySwitchCallback : public osg::NodeCallback {
350 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
352 assert(dynamic_cast<osg::Switch*>(node));
353 osg::Switch* sw = static_cast<osg::Switch*>(node);
355 double t = globals->get_sim_time_sec();
356 bool enabled = 0 < t;
357 sw->setValue(0, enabled);
367 static osg::ref_ptr<osg::FrameStamp> mFrameStamp = new osg::FrameStamp;
368 static osg::ref_ptr<SGUpdateVisitor> mUpdateVisitor= new SGUpdateVisitor;
370 static osg::ref_ptr<osg::Group> mRealRoot = new osg::Group;
372 static osg::ref_ptr<osg::Group> mRoot = new osg::Group;
374 FGRenderer::FGRenderer()
376 #ifdef FG_JPEG_SERVER
377 jpgRenderFrame = FGRenderer::update;
379 eventHandler = new FGEventHandler;
382 FGRenderer::~FGRenderer()
384 #ifdef FG_JPEG_SERVER
385 jpgRenderFrame = NULL;
389 // Initialize various GL/view parameters
390 // XXX This should be called "preinit" or something, as it initializes
391 // critical parts of the scene graph in addition to the splash screen.
393 FGRenderer::splashinit( void ) {
394 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
395 mRealRoot = dynamic_cast<osg::Group*>(viewer->getSceneData());
396 mRealRoot->addChild(fgCreateSplashNode());
397 mFrameStamp = viewer->getFrameStamp();
398 // Scene doesn't seem to pass the frame stamp to the update
399 // visitor automatically.
400 mUpdateVisitor->setFrameStamp(mFrameStamp.get());
401 #ifdef UPDATE_VISITOR_IN_VIEWER
402 viewer->setUpdateVisitor(mUpdateVisitor.get());
404 osgViewer::Scene* scene = viewer->getScene();
405 scene->setUpdateVisitor(mUpdateVisitor.get());
410 FGRenderer::init( void )
412 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
413 osg::initNotifyLevel();
415 // The number of polygon-offset "units" to place between layers. In
416 // principle, one is supposed to be enough. In practice, I find that
417 // my hardware/driver requires many more.
418 osg::PolygonOffset::setUnitsMultiplier(1);
419 osg::PolygonOffset::setFactorMultiplier(1);
421 // Go full screen if requested ...
422 if ( fgGetBool("/sim/startup/fullscreen") )
426 ->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
428 osg::StateSet* stateSet = mRoot->getOrCreateStateSet();
430 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
432 stateSet->setAttribute(new osg::Depth(osg::Depth::LESS));
433 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
435 stateSet->setAttribute(new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01));
436 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::OFF);
437 stateSet->setAttribute(new osg::BlendFunc);
438 stateSet->setMode(GL_BLEND, osg::StateAttribute::OFF);
440 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
442 // this will be set below
443 stateSet->setMode(GL_NORMALIZE, osg::StateAttribute::OFF);
445 osg::Material* material = new osg::Material;
446 stateSet->setAttribute(material);
448 stateSet->setTextureAttribute(0, new osg::TexEnv);
449 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
451 osg::Hint* hint = new osg::Hint(GL_FOG_HINT, GL_DONT_CARE);
452 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/fog"));
453 stateSet->setAttribute(hint);
454 hint = new osg::Hint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
455 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/polygon-smooth"));
456 stateSet->setAttribute(hint);
457 hint = new osg::Hint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
458 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/line-smooth"));
459 stateSet->setAttribute(hint);
460 hint = new osg::Hint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
461 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/point-smooth"));
462 stateSet->setAttribute(hint);
463 hint = new osg::Hint(GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE);
464 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/perspective-correction"));
465 stateSet->setAttribute(hint);
467 osg::Group* sceneGroup = new osg::Group;
468 sceneGroup->addChild(globals->get_scenery()->get_scene_graph());
469 sceneGroup->setNodeMask(~simgear::BACKGROUND_BIT);
471 //sceneGroup->addChild(thesky->getCloudRoot());
473 stateSet = sceneGroup->getOrCreateStateSet();
474 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
476 // need to update the light on every frame
477 osg::LightSource* lightSource = new osg::LightSource;
478 lightSource->setUpdateCallback(new FGLightSourceUpdateCallback);
479 // relative because of CameraView being just a clever transform node
480 lightSource->setReferenceFrame(osg::LightSource::RELATIVE_RF);
481 lightSource->setLocalStateSetModes(osg::StateAttribute::ON);
483 lightSource->addChild(sceneGroup);
484 lightSource->addChild(thesky->getPreRoot());
485 mRoot->addChild(lightSource);
487 stateSet = globals->get_scenery()->get_scene_graph()->getOrCreateStateSet();
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);
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);
498 // switch to enable wireframe
499 osg::PolygonMode* polygonMode = new osg::PolygonMode;
500 polygonMode->setUpdateCallback(new FGWireFrameModeUpdateCallback);
501 stateSet->setAttributeAndModes(polygonMode);
503 // scene fog handling
504 osg::Fog* fog = new osg::Fog;
505 fog->setUpdateCallback(new FGFogUpdateCallback);
506 stateSet->setAttributeAndModes(fog);
507 stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
510 osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
512 osg::Geode* geode = new osg::Geode;
513 geode->addDrawable(new SGPuDrawable);
514 geode->addDrawable(new SGHUDAndPanelDrawable);
515 guiCamera->addChild(geode);
517 osg::Switch* sw = new osg::Switch;
518 sw->setUpdateCallback(new FGScenerySwitchCallback);
519 sw->addChild(mRoot.get());
520 mRealRoot->addChild(sw);
521 mRealRoot->addChild(thesky->getCloudRoot());
522 mRealRoot->addChild(FGCreateRedoutNode());
526 // Update all Visuals (redraws anything graphics related)
528 FGRenderer::update( bool refresh_camera_settings ) {
529 bool scenery_loaded = fgGetBool("sim/sceneryloaded")
530 || fgGetBool("sim/sceneryloaded-override");
531 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
532 if ( idle_state < 1000 || !scenery_loaded ) {
533 fgSetDouble("/sim/startup/splash-alpha", 1.0);
535 // Keep resetting sim time while the sim is initializing
536 // the splash screen is now in the scenegraph
537 globals->set_sim_time_sec( 0.0 );
541 // Fade out the splash screen over the first three seconds.
542 double sAlpha = SGMiscd::max(0, (2.5 - globals->get_sim_time_sec()) / 2.5);
543 fgSetDouble("/sim/startup/splash-alpha", sAlpha);
545 bool skyblend = fgGetBool("/sim/rendering/skyblend");
546 bool use_point_sprites = fgGetBool("/sim/rendering/point-sprites");
547 bool enhanced_lighting = fgGetBool("/sim/rendering/enhanced-lighting");
548 bool distance_attenuation
549 = fgGetBool("/sim/rendering/distance-attenuation");
551 SGConfigureDirectionalLights( use_point_sprites, enhanced_lighting,
552 distance_attenuation );
554 static const SGPropertyNode *groundlevel_nearplane
555 = fgGetNode("/sim/current-view/ground-level-nearplane-m");
557 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
560 double actual_visibility;
561 if (fgGetBool("/environment/clouds/status")) {
562 actual_visibility = thesky->get_visibility();
564 actual_visibility = fgGetDouble("/environment/visibility-m");
567 // idle_state is now 1000 meaning we've finished all our
568 // initializations and are running the main loop, so this will
569 // now work without seg faulting the system.
571 FGViewer *current__view = globals->get_current_view();
572 // Force update of center dependent values ...
573 current__view->set_dirty();
575 if ( refresh_camera_settings ) {
577 resize( fgGetInt("/sim/startup/xsize"),
578 fgGetInt("/sim/startup/ysize") );
580 osg::Camera *camera = viewer->getCamera();
584 if ( fgGetBool("/sim/rendering/textures") ) {
585 SGVec4f clearColor(l->adj_fog_color());
586 camera->setClearColor(clearColor.osg());
589 SGVec4f clearColor(l->sky_color());
590 camera->setClearColor(clearColor.osg());
593 // update fog params if visibility has changed
594 double visibility_meters = fgGetDouble("/environment/visibility-m");
595 thesky->set_visibility(visibility_meters);
597 thesky->modify_vis( cur_fdm_state->get_Altitude() * SG_FEET_TO_METER,
598 ( global_multi_loop * fgGetInt("/sim/speed-up") )
599 / (double)fgGetInt("/sim/model-hz") );
601 // update the sky dome
604 // The sun and moon distances are scaled down versions
605 // of the actual distance to get both the moon and the sun
606 // within the range of the far clip plane.
607 // Moon distance: 384,467 kilometers
608 // Sun distance: 150,000,000 kilometers
610 double sun_horiz_eff, moon_horiz_eff;
611 if (fgGetBool("/sim/rendering/horizon-effect")) {
613 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_sun_angle()),
617 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_moon_angle()),
621 sun_horiz_eff = moon_horiz_eff = 1.0;
624 static SGSkyState sstate;
626 SGVec3d viewPos = current__view->getViewPosition();
627 sstate.view_pos = toVec3f(viewPos);
628 SGGeod geodViewPos = SGGeod::fromCart(viewPos);
629 SGGeod geodZeroViewPos = SGGeod::fromGeodM(geodViewPos, 0);
630 sstate.zero_elev = toVec3f(SGVec3d::fromGeod(geodZeroViewPos));
631 SGQuatd hlOr = SGQuatd::fromLonLat(geodViewPos);
632 sstate.view_up = toVec3f(hlOr.backTransform(-SGVec3d::e3()));
633 sstate.lon = geodViewPos.getLongitudeRad();
634 sstate.lat = geodViewPos.getLatitudeRad();
635 sstate.alt = geodViewPos.getElevationM();
636 sstate.spin = l->get_sun_rotation();
637 sstate.gst = globals->get_time_params()->getGst();
638 sstate.sun_ra = globals->get_ephem()->getSunRightAscension();
639 sstate.sun_dec = globals->get_ephem()->getSunDeclination();
640 sstate.sun_dist = 50000.0 * sun_horiz_eff;
641 sstate.moon_ra = globals->get_ephem()->getMoonRightAscension();
642 sstate.moon_dec = globals->get_ephem()->getMoonDeclination();
643 sstate.moon_dist = 40000.0 * moon_horiz_eff;
644 sstate.sun_angle = l->get_sun_angle();
648 SG_LOG( SG_GENERAL, SG_BULK, "thesky->repaint() sky_color = "
649 << l->sky_color()[0] << " "
650 << l->sky_color()[1] << " "
651 << l->sky_color()[2] << " "
652 << l->sky_color()[3] );
653 SG_LOG( SG_GENERAL, SG_BULK, " fog = "
654 << l->fog_color()[0] << " "
655 << l->fog_color()[1] << " "
656 << l->fog_color()[2] << " "
657 << l->fog_color()[3] );
658 SG_LOG( SG_GENERAL, SG_BULK,
659 " sun_angle = " << l->sun_angle
660 << " moon_angle = " << l->moon_angle );
663 static SGSkyColor scolor;
665 scolor.sky_color = SGVec3f(l->sky_color().data());
666 scolor.fog_color = SGVec3f(l->adj_fog_color().data());
667 scolor.cloud_color = SGVec3f(l->cloud_color().data());
668 scolor.sun_angle = l->get_sun_angle();
669 scolor.moon_angle = l->get_moon_angle();
670 scolor.nplanets = globals->get_ephem()->getNumPlanets();
671 scolor.nstars = globals->get_ephem()->getNumStars();
672 scolor.planet_data = globals->get_ephem()->getPlanets();
673 scolor.star_data = globals->get_ephem()->getStars();
675 thesky->reposition( sstate, delta_time_sec );
676 thesky->repaint( scolor );
679 SG_LOG( SG_GENERAL, SG_BULK,
680 "thesky->reposition( view_pos = " << view_pos[0] << " "
681 << view_pos[1] << " " << view_pos[2] );
682 SG_LOG( SG_GENERAL, SG_BULK,
683 " zero_elev = " << zero_elev[0] << " "
684 << zero_elev[1] << " " << zero_elev[2]
685 << " lon = " << cur_fdm_state->get_Longitude()
686 << " lat = " << cur_fdm_state->get_Latitude() );
687 SG_LOG( SG_GENERAL, SG_BULK,
688 " sun_rot = " << l->get_sun_rotation
689 << " gst = " << SGTime::cur_time_params->getGst() );
690 SG_LOG( SG_GENERAL, SG_BULK,
691 " sun ra = " << globals->get_ephem()->getSunRightAscension()
692 << " sun dec = " << globals->get_ephem()->getSunDeclination()
693 << " moon ra = " << globals->get_ephem()->getMoonRightAscension()
694 << " moon dec = " << globals->get_ephem()->getMoonDeclination() );
698 // shadows->setupShadows(
699 // current__view->getLongitude_deg(),
700 // current__view->getLatitude_deg(),
701 // globals->get_time_params()->getGst(),
702 // globals->get_ephem()->getSunRightAscension(),
703 // globals->get_ephem()->getSunDeclination(),
704 // l->get_sun_angle());
708 // sgEnviro.setLight(l->adj_fog_color());
709 // sgEnviro.startOfFrame(current__view->get_view_pos(),
710 // current__view->get_world_up(),
711 // current__view->getLongitude_deg(),
712 // current__view->getLatitude_deg(),
713 // current__view->getAltitudeASL_ft() * SG_FEET_TO_METER,
717 // sgEnviro.drawLightning();
719 // double current_view_origin_airspeed_horiz_kt =
720 // fgGetDouble("/velocities/airspeed-kt", 0.0)
721 // * cos( fgGetDouble("/orientation/pitch-deg", 0.0)
722 // * SGD_DEGREES_TO_RADIANS);
726 // shadows->endOfFrame();
728 // need to call the update visitor once
729 mFrameStamp->setCalendarTime(*globals->get_time_params()->getGmt());
730 mUpdateVisitor->setViewData(current__view->getViewPosition(),
731 current__view->getViewOrientation());
732 SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
733 mUpdateVisitor->setLight(direction, l->scene_ambient(),
734 l->scene_diffuse(), l->scene_specular(),
736 l->get_sun_angle()*SGD_RADIANS_TO_DEGREES);
737 mUpdateVisitor->setVisibility(actual_visibility);
738 simgear::GroundLightManager::instance()->update(mUpdateVisitor.get());
739 bool hotspots = fgGetBool("/sim/panel-hotspots");
740 osg::Node::NodeMask cullMask = ~simgear::LIGHTS_BITS & ~simgear::PICK_BIT;
741 cullMask |= simgear::GroundLightManager::instance()
742 ->getLightNodeMask(mUpdateVisitor.get());
744 cullMask |= simgear::PICK_BIT;
745 CameraGroup::getDefault()->setCameraCullMasks(cullMask);
750 // options.cxx needs to see this for toggle_panel()
751 // Handle new window size or exposure
753 FGRenderer::resize( int width, int height ) {
756 if ( (!fgGetBool("/sim/virtual-cockpit"))
757 && fgPanelVisible() && idle_state == 1000 ) {
758 view_h = (int)(height * (globals->get_current_panel()->getViewHeight() -
759 globals->get_current_panel()->getYOffset()) / 768.0);
764 static int lastwidth = 0;
765 static int lastheight = 0;
766 if (width != lastwidth)
767 fgSetInt("/sim/startup/xsize", lastwidth = width);
768 if (height != lastheight)
769 fgSetInt("/sim/startup/ysize", lastheight = height);
772 FGViewMgr *viewmgr = globals->get_viewmgr();
774 for ( int i = 0; i < viewmgr->size(); ++i ) {
775 viewmgr->get_view(i)->
776 set_aspect_ratio((float)view_h / (float)width);
781 void FGRenderer::setCameraParameters(float vfov, float aspectRatio,
782 float zNear, float zFar)
785 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
786 viewer->getCamera()->setProjectionMatrixAsPerspective(vfov,
792 FGRenderer::pick(std::vector<SGSceneryPick>& pickList,
793 const osgGA::GUIEventAdapter* ea)
795 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
796 // wipe out the return ...
798 typedef osgUtil::LineSegmentIntersector::Intersections Intersections;
799 Intersections intersections;
801 if (!computeIntersections(CameraGroup::getDefault(), ea, intersections))
803 for (Intersections::iterator hit = intersections.begin(),
804 e = intersections.end();
807 const osg::NodePath& np = hit->nodePath;
808 osg::NodePath::const_reverse_iterator npi;
809 for (npi = np.rbegin(); npi != np.rend(); ++npi) {
810 SGSceneUserData* ud = SGSceneUserData::getSceneUserData(*npi);
813 for (unsigned i = 0; i < ud->getNumPickCallbacks(); ++i) {
814 SGPickCallback* pickCallback = ud->getPickCallback(i);
817 SGSceneryPick sceneryPick;
818 sceneryPick.info.local = SGVec3d(hit->getLocalIntersectPoint());
819 sceneryPick.info.wgs84 = SGVec3d(hit->getWorldIntersectPoint());
820 sceneryPick.callback = pickCallback;
821 pickList.push_back(sceneryPick);
825 return !pickList.empty();
829 FGRenderer::setViewer(osgViewer::Viewer* viewer_)
835 FGRenderer::setEventHandler(FGEventHandler* eventHandler_)
837 eventHandler = eventHandler_;
841 FGRenderer::addCamera(osg::Camera* camera, bool useSceneData)
843 mRealRoot->addChild(camera);
847 fgDumpSceneGraphToFile(const char* filename)
849 return osgDB::writeNodeFile(*mRealRoot.get(), filename);
853 fgDumpTerrainBranchToFile(const char* filename)
855 return osgDB::writeNodeFile( *globals->get_scenery()->get_terrain_branch(),
861 fgDumpNodeToFile(osg::Node* node, const char* filename)
863 return osgDB::writeNodeFile(*node, filename);
865 // end of renderer.cxx