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.
26 #include <simgear/compiler.h>
28 #include <osg/ref_ptr>
29 #include <osg/AlphaFunc>
30 #include <osg/BlendFunc>
32 #include <osg/CullFace>
38 #include <osg/LightModel>
39 #include <osg/LightSource>
40 #include <osg/Material>
41 #include <osg/NodeCallback>
43 #include <osg/PolygonMode>
44 #include <osg/PolygonOffset>
45 #include <osg/ShadeModel>
46 #include <osg/Version>
49 #include <osgUtil/SceneView>
50 #include <osgUtil/UpdateVisitor>
51 #include <osgUtil/IntersectVisitor>
52 #include <osgUtil/LineSegmentIntersector>
54 #include <osg/io_utils>
55 #include <osgDB/WriteFile>
56 #include <osgDB/ReadFile>
59 #include <simgear/math/SGMath.hxx>
60 #include <simgear/screen/extensions.hxx>
61 #include <simgear/scene/material/matlib.hxx>
62 #include <simgear/scene/model/animation.hxx>
63 #include <simgear/scene/model/placement.hxx>
64 #include <simgear/scene/sky/sky.hxx>
65 #include <simgear/scene/util/SGUpdateVisitor.hxx>
66 #include <simgear/scene/util/RenderConstants.hxx>
67 #include <simgear/scene/tgdb/GroundLightManager.hxx>
68 #include <simgear/scene/tgdb/pt_lights.hxx>
69 #include <simgear/props/props.hxx>
70 #include <simgear/timing/sg_time.hxx>
71 #include <simgear/ephemeris/ephemeris.hxx>
72 #include <simgear/math/sg_random.h>
74 #include <simgear/screen/jpgfactory.hxx>
77 #include <simgear/environment/visual_enviro.hxx>
79 #include <Time/light.hxx>
80 #include <Time/light.hxx>
81 #include <Aircraft/aircraft.hxx>
82 #include <Cockpit/panel.hxx>
83 #include <Cockpit/cockpit.hxx>
84 #include <Cockpit/hud.hxx>
85 #include <Model/panelnode.hxx>
86 #include <Model/modelmgr.hxx>
87 #include <Model/acmodel.hxx>
88 #include <Scenery/scenery.hxx>
89 #include <Scenery/redout.hxx>
90 #include <Scenery/tilemgr.hxx>
91 #include <GUI/new_gui.hxx>
92 #include <Instrumentation/instrument_mgr.hxx>
93 #include <Instrumentation/HUD/HUD.hxx>
94 #include <Environment/precipitation_mgr.hxx>
96 #include <Include/general.hxx>
98 #include "renderer.hxx"
100 #include "CameraGroup.hxx"
101 #include "ViewPartitionNode.hxx"
103 // XXX Make this go away when OSG 2.2 is released.
104 #if (FG_OSG_VERSION >= 21004)
105 #define UPDATE_VISITOR_IN_VIEWER 1
108 using namespace flightgear;
110 class FGHintUpdateCallback : public osg::StateAttribute::Callback {
112 FGHintUpdateCallback(const char* configNode) :
113 mConfigNode(fgGetNode(configNode, true))
115 virtual void operator()(osg::StateAttribute* stateAttribute,
118 assert(dynamic_cast<osg::Hint*>(stateAttribute));
119 osg::Hint* hint = static_cast<osg::Hint*>(stateAttribute);
121 const char* value = mConfigNode->getStringValue();
123 hint->setMode(GL_DONT_CARE);
124 else if (0 == strcmp(value, "nicest"))
125 hint->setMode(GL_NICEST);
126 else if (0 == strcmp(value, "fastest"))
127 hint->setMode(GL_FASTEST);
129 hint->setMode(GL_DONT_CARE);
132 SGSharedPtr<SGPropertyNode> mConfigNode;
136 class SGPuDrawable : public osg::Drawable {
140 // Dynamic stuff, do not store geometry
141 setUseDisplayList(false);
143 osg::StateSet* stateSet = getOrCreateStateSet();
144 stateSet->setRenderBinDetails(1001, "RenderBin");
145 // speed optimization?
146 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
147 // We can do translucent menus, so why not. :-)
148 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
149 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
150 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
152 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
154 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
155 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
157 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
158 { drawImplementation(*renderInfo.getState()); }
159 void drawImplementation(osg::State& state) const
161 state.setActiveTextureUnit(0);
162 state.setClientActiveTextureUnit(0);
164 state.disableAllVertexArrays();
166 glPushAttrib(GL_ALL_ATTRIB_BITS);
167 glPushClientAttrib(~0u);
175 virtual osg::Object* cloneType() const { return new SGPuDrawable; }
176 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGPuDrawable; }
181 class SGHUDAndPanelDrawable : public osg::Drawable {
183 SGHUDAndPanelDrawable()
185 // Dynamic stuff, do not store geometry
186 setUseDisplayList(false);
188 osg::StateSet* stateSet = getOrCreateStateSet();
189 stateSet->setRenderBinDetails(1000, "RenderBin");
191 // speed optimization?
192 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
193 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
194 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
195 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
196 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
198 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
200 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
201 { drawImplementation(*renderInfo.getState()); }
202 void drawImplementation(osg::State& state) const
204 state.setActiveTextureUnit(0);
205 state.setClientActiveTextureUnit(0);
206 state.disableAllVertexArrays();
208 glPushAttrib(GL_ALL_ATTRIB_BITS);
209 glPushClientAttrib(~0u);
211 fgCockpitUpdate(&state);
213 FGInstrumentMgr *instr = static_cast<FGInstrumentMgr*>(globals->get_subsystem("instrumentation"));
214 HUD *hud = static_cast<HUD*>(instr->get_subsystem("hud"));
217 // update the panel subsystem
218 if ( globals->get_current_panel() != NULL )
219 globals->get_current_panel()->update(state);
220 // We don't need a state here - can be safely removed when we can pick
229 virtual osg::Object* cloneType() const { return new SGHUDAndPanelDrawable; }
230 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGHUDAndPanelDrawable; }
235 class FGLightSourceUpdateCallback : public osg::NodeCallback {
237 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
239 assert(dynamic_cast<osg::LightSource*>(node));
240 osg::LightSource* lightSource = static_cast<osg::LightSource*>(node);
241 osg::Light* light = lightSource->getLight();
243 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
244 light->setAmbient(l->scene_ambient().osg());
245 light->setDiffuse(l->scene_diffuse().osg());
246 light->setSpecular(l->scene_specular().osg());
247 SGVec4f position(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2], 0);
248 light->setPosition(position.osg());
249 SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
250 light->setDirection(direction.osg());
251 light->setSpotExponent(0);
252 light->setSpotCutoff(180);
253 light->setConstantAttenuation(1);
254 light->setLinearAttenuation(0);
255 light->setQuadraticAttenuation(0);
261 class FGWireFrameModeUpdateCallback : public osg::StateAttribute::Callback {
263 FGWireFrameModeUpdateCallback() :
264 mWireframe(fgGetNode("/sim/rendering/wireframe"))
266 virtual void operator()(osg::StateAttribute* stateAttribute,
269 assert(dynamic_cast<osg::PolygonMode*>(stateAttribute));
270 osg::PolygonMode* polygonMode;
271 polygonMode = static_cast<osg::PolygonMode*>(stateAttribute);
273 if (mWireframe->getBoolValue())
274 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
275 osg::PolygonMode::LINE);
277 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
278 osg::PolygonMode::FILL);
281 SGSharedPtr<SGPropertyNode> mWireframe;
284 class FGLightModelUpdateCallback : public osg::StateAttribute::Callback {
286 FGLightModelUpdateCallback() :
287 mHighlights(fgGetNode("/sim/rendering/specular-highlight"))
289 virtual void operator()(osg::StateAttribute* stateAttribute,
292 assert(dynamic_cast<osg::LightModel*>(stateAttribute));
293 osg::LightModel* lightModel;
294 lightModel = static_cast<osg::LightModel*>(stateAttribute);
297 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
298 lightModel->setAmbientIntensity(l->scene_ambient().osg());
300 lightModel->setAmbientIntensity(osg::Vec4(0, 0, 0, 1));
302 lightModel->setTwoSided(true);
303 lightModel->setLocalViewer(false);
305 if (mHighlights->getBoolValue()) {
306 lightModel->setColorControl(osg::LightModel::SEPARATE_SPECULAR_COLOR);
308 lightModel->setColorControl(osg::LightModel::SINGLE_COLOR);
312 SGSharedPtr<SGPropertyNode> mHighlights;
315 class FGFogEnableUpdateCallback : public osg::StateSet::Callback {
317 FGFogEnableUpdateCallback() :
318 mFogEnabled(fgGetNode("/sim/rendering/fog"))
320 virtual void operator()(osg::StateSet* stateSet, osg::NodeVisitor*)
322 if (strcmp(mFogEnabled->getStringValue(), "disabled") == 0) {
323 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
325 stateSet->setMode(GL_FOG, osg::StateAttribute::ON);
329 SGSharedPtr<SGPropertyNode> mFogEnabled;
332 class FGFogUpdateCallback : public osg::StateAttribute::Callback {
334 virtual void operator () (osg::StateAttribute* sa, osg::NodeVisitor* nv)
336 assert(dynamic_cast<SGUpdateVisitor*>(nv));
337 assert(dynamic_cast<osg::Fog*>(sa));
338 SGUpdateVisitor* updateVisitor = static_cast<SGUpdateVisitor*>(nv);
339 osg::Fog* fog = static_cast<osg::Fog*>(sa);
340 fog->setMode(osg::Fog::EXP2);
341 fog->setColor(updateVisitor->getFogColor().osg());
342 fog->setDensity(updateVisitor->getFogExp2Density());
346 // update callback for the switch node guarding that splash
347 class FGScenerySwitchCallback : public osg::NodeCallback {
349 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
351 assert(dynamic_cast<osg::Switch*>(node));
352 osg::Switch* sw = static_cast<osg::Switch*>(node);
354 double t = globals->get_sim_time_sec();
355 bool enabled = 0 < t;
356 sw->setValue(0, enabled);
366 static osg::ref_ptr<osg::FrameStamp> mFrameStamp = new osg::FrameStamp;
367 static osg::ref_ptr<SGUpdateVisitor> mUpdateVisitor= new SGUpdateVisitor;
369 static osg::ref_ptr<osg::Group> mRealRoot = new osg::Group;
371 static osg::ref_ptr<osg::Group> mRoot = new osg::Group;
373 static osg::ref_ptr<ViewPartitionNode> viewPartition = new ViewPartitionNode;
375 FGRenderer::FGRenderer()
377 #ifdef FG_JPEG_SERVER
378 jpgRenderFrame = FGRenderer::update;
380 manipulator = new FGManipulator;
383 FGRenderer::~FGRenderer()
385 #ifdef FG_JPEG_SERVER
386 jpgRenderFrame = NULL;
390 // Initialize various GL/view parameters
391 // XXX This should be called "preinit" or something, as it initializes
392 // critical parts of the scene graph in addition to the splash screen.
394 FGRenderer::splashinit( void ) {
395 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
396 mRealRoot = dynamic_cast<osg::Group*>(viewer->getSceneData());
397 mRealRoot->addChild(fgCreateSplashNode());
398 mFrameStamp = viewer->getFrameStamp();
399 // Scene doesn't seem to pass the frame stamp to the update
400 // visitor automatically.
401 mUpdateVisitor->setFrameStamp(mFrameStamp.get());
402 #ifdef UPDATE_VISITOR_IN_VIEWER
403 viewer->setUpdateVisitor(mUpdateVisitor.get());
405 osgViewer::Scene* scene = viewer->getScene();
406 scene->setUpdateVisitor(mUpdateVisitor.get());
411 FGRenderer::init( void )
413 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
414 osg::initNotifyLevel();
416 // The number of polygon-offset "units" to place between layers. In
417 // principle, one is supposed to be enough. In practice, I find that
418 // my hardware/driver requires many more.
419 osg::PolygonOffset::setUnitsMultiplier(1);
420 osg::PolygonOffset::setFactorMultiplier(1);
422 // Go full screen if requested ...
423 if ( fgGetBool("/sim/startup/fullscreen") )
427 ->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
429 osg::StateSet* stateSet = mRoot->getOrCreateStateSet();
431 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
433 stateSet->setAttribute(new osg::Depth(osg::Depth::LESS));
434 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
436 stateSet->setAttribute(new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01));
437 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::OFF);
438 stateSet->setAttribute(new osg::BlendFunc);
439 stateSet->setMode(GL_BLEND, osg::StateAttribute::OFF);
441 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
443 // this will be set below
444 stateSet->setMode(GL_NORMALIZE, osg::StateAttribute::OFF);
446 osg::Material* material = new osg::Material;
447 stateSet->setAttribute(material);
449 stateSet->setTextureAttribute(0, new osg::TexEnv);
450 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
452 osg::Hint* hint = new osg::Hint(GL_FOG_HINT, GL_DONT_CARE);
453 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/fog"));
454 stateSet->setAttribute(hint);
455 hint = new osg::Hint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
456 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/polygon-smooth"));
457 stateSet->setAttribute(hint);
458 hint = new osg::Hint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
459 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/line-smooth"));
460 stateSet->setAttribute(hint);
461 hint = new osg::Hint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
462 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/point-smooth"));
463 stateSet->setAttribute(hint);
464 hint = new osg::Hint(GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE);
465 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/perspective-correction"));
466 stateSet->setAttribute(hint);
468 osg::Group* sceneGroup = new osg::Group;
469 sceneGroup->addChild(globals->get_scenery()->get_scene_graph());
470 sceneGroup->setNodeMask(~simgear::BACKGROUND_BIT);
472 //sceneGroup->addChild(thesky->getCloudRoot());
474 stateSet = sceneGroup->getOrCreateStateSet();
475 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
476 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
478 // need to update the light on every frame
479 osg::LightSource* lightSource = new osg::LightSource;
480 lightSource->setUpdateCallback(new FGLightSourceUpdateCallback);
481 // relative because of CameraView being just a clever transform node
482 lightSource->setReferenceFrame(osg::LightSource::RELATIVE_RF);
483 lightSource->setLocalStateSetModes(osg::StateAttribute::ON);
485 lightSource->addChild(sceneGroup);
486 lightSource->addChild(thesky->getPreRoot());
487 mRoot->addChild(lightSource);
489 stateSet = globals->get_scenery()->get_scene_graph()->getOrCreateStateSet();
490 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
491 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
492 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::ON);
493 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
495 // enable disable specular highlights.
496 // is the place where we might plug in an other fragment shader ...
497 osg::LightModel* lightModel = new osg::LightModel;
498 lightModel->setUpdateCallback(new FGLightModelUpdateCallback);
499 stateSet->setAttribute(lightModel);
501 // switch to enable wireframe
502 osg::PolygonMode* polygonMode = new osg::PolygonMode;
503 polygonMode->setUpdateCallback(new FGWireFrameModeUpdateCallback);
504 stateSet->setAttributeAndModes(polygonMode);
506 // scene fog handling
507 osg::Fog* fog = new osg::Fog;
508 fog->setUpdateCallback(new FGFogUpdateCallback);
509 stateSet->setAttributeAndModes(fog);
510 stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
513 osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
515 osg::Geode* geode = new osg::Geode;
516 geode->addDrawable(new SGPuDrawable);
517 geode->addDrawable(new SGHUDAndPanelDrawable);
518 guiCamera->addChild(geode);
520 osg::Switch* sw = new osg::Switch;
521 sw->setUpdateCallback(new FGScenerySwitchCallback);
522 sw->addChild(mRoot.get());
523 viewPartition->addChild(sw);
524 viewPartition->addChild(thesky->getCloudRoot());
526 mRealRoot->addChild(viewPartition.get());
527 mRealRoot->addChild(FGCreateRedoutNode());
531 // Update all Visuals (redraws anything graphics related)
533 FGRenderer::update( bool refresh_camera_settings ) {
534 bool scenery_loaded = fgGetBool("sim/sceneryloaded")
535 || fgGetBool("sim/sceneryloaded-override");
536 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
537 if ( idle_state < 1000 || !scenery_loaded ) {
538 fgSetDouble("/sim/startup/splash-alpha", 1.0);
540 // Keep resetting sim time while the sim is initializing
541 // the splash screen is now in the scenegraph
542 globals->set_sim_time_sec( 0.0 );
546 // Fade out the splash screen over the first three seconds.
547 double sAlpha = SGMiscd::max(0, (2.5 - globals->get_sim_time_sec()) / 2.5);
548 fgSetDouble("/sim/startup/splash-alpha", sAlpha);
550 bool skyblend = fgGetBool("/sim/rendering/skyblend");
551 bool use_point_sprites = fgGetBool("/sim/rendering/point-sprites");
552 bool enhanced_lighting = fgGetBool("/sim/rendering/enhanced-lighting");
553 bool distance_attenuation
554 = fgGetBool("/sim/rendering/distance-attenuation");
556 SGConfigureDirectionalLights( use_point_sprites, enhanced_lighting,
557 distance_attenuation );
559 static const SGPropertyNode *groundlevel_nearplane
560 = fgGetNode("/sim/current-view/ground-level-nearplane-m");
562 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
565 double actual_visibility;
566 if (fgGetBool("/environment/clouds/status")) {
567 actual_visibility = thesky->get_visibility();
569 actual_visibility = fgGetDouble("/environment/visibility-m");
572 // idle_state is now 1000 meaning we've finished all our
573 // initializations and are running the main loop, so this will
574 // now work without seg faulting the system.
576 FGViewer *current__view = globals->get_current_view();
577 // Force update of center dependent values ...
578 current__view->set_dirty();
580 if ( refresh_camera_settings ) {
582 resize( fgGetInt("/sim/startup/xsize"),
583 fgGetInt("/sim/startup/ysize") );
585 SGVec3d position = current__view->getViewPosition();
586 SGQuatd attitude = current__view->getViewOrientation();
588 FGManipulator *manipulator = globals->get_renderer()->getManipulator();
589 manipulator->setPosition(position.osg());
590 manipulator->setAttitude(attitude.osg());
593 osg::Camera *camera = viewer->getCamera();
597 if ( fgGetBool("/sim/rendering/textures") ) {
598 SGVec4f clearColor(l->adj_fog_color());
599 camera->setClearColor(clearColor.osg());
602 SGVec4f clearColor(l->sky_color());
603 camera->setClearColor(clearColor.osg());
606 // update fog params if visibility has changed
607 double visibility_meters = fgGetDouble("/environment/visibility-m");
608 thesky->set_visibility(visibility_meters);
610 thesky->modify_vis( cur_fdm_state->get_Altitude() * SG_FEET_TO_METER,
611 ( global_multi_loop * fgGetInt("/sim/speed-up") )
612 / (double)fgGetInt("/sim/model-hz") );
614 // update the sky dome
617 // The sun and moon distances are scaled down versions
618 // of the actual distance to get both the moon and the sun
619 // within the range of the far clip plane.
620 // Moon distance: 384,467 kilometers
621 // Sun distance: 150,000,000 kilometers
623 double sun_horiz_eff, moon_horiz_eff;
624 if (fgGetBool("/sim/rendering/horizon-effect")) {
625 sun_horiz_eff = 0.67+pow(0.5+cos(l->get_sun_angle())*2/2, 0.33)/3;
626 moon_horiz_eff = 0.67+pow(0.5+cos(l->get_moon_angle())*2/2, 0.33)/3;
628 sun_horiz_eff = moon_horiz_eff = 1.0;
631 static SGSkyState sstate;
633 sstate.view_pos = toVec3f(current__view->get_view_pos());
634 sstate.zero_elev = toVec3f(current__view->get_zero_elev());
635 sstate.view_up = current__view->get_world_up();
636 sstate.lon = current__view->getLongitude_deg()
637 * SGD_DEGREES_TO_RADIANS;
638 sstate.lat = current__view->getLatitude_deg()
639 * SGD_DEGREES_TO_RADIANS;
640 sstate.alt = current__view->getAltitudeASL_ft()
642 sstate.spin = l->get_sun_rotation();
643 sstate.gst = globals->get_time_params()->getGst();
644 sstate.sun_ra = globals->get_ephem()->getSunRightAscension();
645 sstate.sun_dec = globals->get_ephem()->getSunDeclination();
646 sstate.sun_dist = 50000.0 * sun_horiz_eff;
647 sstate.moon_ra = globals->get_ephem()->getMoonRightAscension();
648 sstate.moon_dec = globals->get_ephem()->getMoonDeclination();
649 sstate.moon_dist = 40000.0 * moon_horiz_eff;
650 sstate.sun_angle = l->get_sun_angle();
654 SG_LOG( SG_GENERAL, SG_BULK, "thesky->repaint() sky_color = "
655 << l->sky_color()[0] << " "
656 << l->sky_color()[1] << " "
657 << l->sky_color()[2] << " "
658 << l->sky_color()[3] );
659 SG_LOG( SG_GENERAL, SG_BULK, " fog = "
660 << l->fog_color()[0] << " "
661 << l->fog_color()[1] << " "
662 << l->fog_color()[2] << " "
663 << l->fog_color()[3] );
664 SG_LOG( SG_GENERAL, SG_BULK,
665 " sun_angle = " << l->sun_angle
666 << " moon_angle = " << l->moon_angle );
669 static SGSkyColor scolor;
671 scolor.sky_color = SGVec3f(l->sky_color().data());
672 scolor.fog_color = SGVec3f(l->adj_fog_color().data());
673 scolor.cloud_color = SGVec3f(l->cloud_color().data());
674 scolor.sun_angle = l->get_sun_angle();
675 scolor.moon_angle = l->get_moon_angle();
676 scolor.nplanets = globals->get_ephem()->getNumPlanets();
677 scolor.nstars = globals->get_ephem()->getNumStars();
678 scolor.planet_data = globals->get_ephem()->getPlanets();
679 scolor.star_data = globals->get_ephem()->getStars();
681 thesky->reposition( sstate, delta_time_sec );
682 thesky->repaint( scolor );
685 SG_LOG( SG_GENERAL, SG_BULK,
686 "thesky->reposition( view_pos = " << view_pos[0] << " "
687 << view_pos[1] << " " << view_pos[2] );
688 SG_LOG( SG_GENERAL, SG_BULK,
689 " zero_elev = " << zero_elev[0] << " "
690 << zero_elev[1] << " " << zero_elev[2]
691 << " lon = " << cur_fdm_state->get_Longitude()
692 << " lat = " << cur_fdm_state->get_Latitude() );
693 SG_LOG( SG_GENERAL, SG_BULK,
694 " sun_rot = " << l->get_sun_rotation
695 << " gst = " << SGTime::cur_time_params->getGst() );
696 SG_LOG( SG_GENERAL, SG_BULK,
697 " sun ra = " << globals->get_ephem()->getSunRightAscension()
698 << " sun dec = " << globals->get_ephem()->getSunDeclination()
699 << " moon ra = " << globals->get_ephem()->getMoonRightAscension()
700 << " moon dec = " << globals->get_ephem()->getMoonDeclination() );
704 // shadows->setupShadows(
705 // current__view->getLongitude_deg(),
706 // current__view->getLatitude_deg(),
707 // globals->get_time_params()->getGst(),
708 // globals->get_ephem()->getSunRightAscension(),
709 // globals->get_ephem()->getSunDeclination(),
710 // l->get_sun_angle());
714 // sgEnviro.setLight(l->adj_fog_color());
716 double agl = current__view->getAltitudeASL_ft()*SG_FEET_TO_METER
717 - current__view->getSGLocation()->get_cur_elev_m();
719 float scene_nearplane, scene_farplane;
720 // XXX Given that the own airplane model is part of the scene
721 // graph, should this business be ripped out? The near plane is
722 // ignored by setCameraParameters.
724 scene_nearplane = 10.0f;
725 scene_farplane = 120000.0f;
727 scene_nearplane = groundlevel_nearplane->getDoubleValue();
728 scene_farplane = 120000.0f;
730 setCameraParameters(current__view->get_v_fov(),
731 current__view->get_aspect_ratio(),
732 scene_nearplane, scene_farplane);
734 // sgEnviro.startOfFrame(current__view->get_view_pos(),
735 // current__view->get_world_up(),
736 // current__view->getLongitude_deg(),
737 // current__view->getLatitude_deg(),
738 // current__view->getAltitudeASL_ft() * SG_FEET_TO_METER,
742 // sgEnviro.drawLightning();
744 // double current_view_origin_airspeed_horiz_kt =
745 // fgGetDouble("/velocities/airspeed-kt", 0.0)
746 // * cos( fgGetDouble("/orientation/pitch-deg", 0.0)
747 // * SGD_DEGREES_TO_RADIANS);
751 // shadows->endOfFrame();
753 // need to call the update visitor once
754 mFrameStamp->setCalendarTime(*globals->get_time_params()->getGmt());
755 mUpdateVisitor->setViewData(current__view->getViewPosition(),
756 current__view->getViewOrientation());
757 SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
758 mUpdateVisitor->setLight(direction, l->scene_ambient(),
759 l->scene_diffuse(), l->scene_specular(),
761 l->get_sun_angle()*SGD_RADIANS_TO_DEGREES);
762 mUpdateVisitor->setVisibility(actual_visibility);
763 viewPartition->setVisibility(actual_visibility);
764 simgear::GroundLightManager::instance()->update(mUpdateVisitor.get());
765 bool hotspots = fgGetBool("/sim/panel-hotspots");
766 osg::Node::NodeMask cullMask = (~simgear::LIGHTS_BITS & ~simgear::PICK_BIT
767 & ~simgear::BACKGROUND_BIT);
768 cullMask |= simgear::GroundLightManager::instance()
769 ->getLightNodeMask(mUpdateVisitor.get());
771 cullMask |= simgear::PICK_BIT;
772 camera->setCullMask(cullMask);
774 for (int i = 0; i < viewer->getNumSlaves(); ++i)
775 viewer->getSlave(i)._camera->setCullMask(cullMask);
780 // options.cxx needs to see this for toggle_panel()
781 // Handle new window size or exposure
783 FGRenderer::resize( int width, int height ) {
786 if ( (!fgGetBool("/sim/virtual-cockpit"))
787 && fgPanelVisible() && idle_state == 1000 ) {
788 view_h = (int)(height * (globals->get_current_panel()->getViewHeight() -
789 globals->get_current_panel()->getYOffset()) / 768.0);
794 static int lastwidth = 0;
795 static int lastheight = 0;
796 if (width != lastwidth)
797 fgSetInt("/sim/startup/xsize", lastwidth = width);
798 if (height != lastheight)
799 fgSetInt("/sim/startup/ysize", lastheight = height);
802 FGViewMgr *viewmgr = globals->get_viewmgr();
804 for ( int i = 0; i < viewmgr->size(); ++i ) {
805 viewmgr->get_view(i)->
806 set_aspect_ratio((float)view_h / (float)width);
811 void FGRenderer::setCameraParameters(float vfov, float aspectRatio,
812 float zNear, float zFar)
815 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
816 viewer->getCamera()->setProjectionMatrixAsPerspective(vfov,
822 FGRenderer::pick(std::vector<SGSceneryPick>& pickList,
823 const osgGA::GUIEventAdapter* ea)
825 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
826 // wipe out the return ...
828 typedef osgUtil::LineSegmentIntersector::Intersections Intersections;
829 Intersections intersections;
831 if (!computeIntersections(CameraGroup::getDefault(), ea, intersections))
833 for (Intersections::iterator hit = intersections.begin(),
834 e = intersections.end();
837 const osg::NodePath& np = hit->nodePath;
838 osg::NodePath::const_reverse_iterator npi;
839 for (npi = np.rbegin(); npi != np.rend(); ++npi) {
840 SGSceneUserData* ud = SGSceneUserData::getSceneUserData(*npi);
843 for (unsigned i = 0; i < ud->getNumPickCallbacks(); ++i) {
844 SGPickCallback* pickCallback = ud->getPickCallback(i);
847 SGSceneryPick sceneryPick;
848 sceneryPick.info.local = SGVec3d(hit->getLocalIntersectPoint());
849 sceneryPick.info.wgs84 = SGVec3d(hit->getWorldIntersectPoint());
850 sceneryPick.callback = pickCallback;
851 pickList.push_back(sceneryPick);
855 return !pickList.empty();
859 FGRenderer::addCamera(osg::Camera* camera, bool useSceneData)
861 mRealRoot->addChild(camera);
865 fgDumpSceneGraphToFile(const char* filename)
867 return osgDB::writeNodeFile(*mRealRoot.get(), filename);
871 fgDumpTerrainBranchToFile(const char* filename)
873 return osgDB::writeNodeFile( *globals->get_scenery()->get_terrain_branch(),
879 fgDumpNodeToFile(osg::Node* node, const char* filename)
881 return osgDB::writeNodeFile(*node, filename);
883 // end of renderer.cxx