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>
38 #include <boost/foreach.hpp>
40 #include <osg/ref_ptr>
41 #include <osg/AlphaFunc>
42 #include <osg/BlendFunc>
44 #include <osg/CullFace>
45 #include <osg/CullStack>
51 #include <osg/LightModel>
52 #include <osg/LightSource>
53 #include <osg/Material>
55 #include <osg/NodeCallback>
57 #include <osg/PolygonMode>
58 #include <osg/PolygonOffset>
59 #include <osg/Program>
60 #include <osg/Version>
63 #include <osgUtil/LineSegmentIntersector>
65 #include <osg/io_utils>
66 #include <osgDB/WriteFile>
67 #include <osgViewer/Renderer>
69 #include <simgear/scene/material/matlib.hxx>
70 #include <simgear/scene/material/EffectCullVisitor.hxx>
71 #include <simgear/scene/material/Effect.hxx>
72 #include <simgear/scene/material/EffectGeode.hxx>
73 #include <simgear/scene/material/EffectBuilder.hxx>
74 #include <simgear/scene/model/animation.hxx>
75 #include <simgear/scene/model/placement.hxx>
76 #include <simgear/scene/sky/sky.hxx>
77 #include <simgear/scene/util/DeletionManager.hxx>
78 #include <simgear/scene/util/SGUpdateVisitor.hxx>
79 #include <simgear/scene/util/RenderConstants.hxx>
80 #include <simgear/scene/util/SGSceneUserData.hxx>
81 #include <simgear/scene/tgdb/GroundLightManager.hxx>
82 #include <simgear/scene/tgdb/pt_lights.hxx>
83 #include <simgear/scene/tgdb/userdata.hxx>
84 #include <simgear/structure/OSGUtils.hxx>
85 #include <simgear/props/props.hxx>
86 #include <simgear/timing/sg_time.hxx>
87 #include <simgear/ephemeris/ephemeris.hxx>
88 #include <simgear/math/sg_random.h>
90 #include <simgear/screen/jpgfactory.hxx>
93 #include <Time/light.hxx>
94 #include <Time/light.hxx>
95 #include <Cockpit/panel.hxx>
97 #include <Model/panelnode.hxx>
98 #include <Model/modelmgr.hxx>
99 #include <Model/acmodel.hxx>
100 #include <Scenery/scenery.hxx>
101 #include <Scenery/redout.hxx>
102 #include <GUI/new_gui.hxx>
103 #include <Instrumentation/HUD/HUD.hxx>
104 #include <Environment/precipitation_mgr.hxx>
105 #include <Environment/environment_mgr.hxx>
107 //#include <Main/main.hxx>
108 #include "viewer.hxx"
109 #include "viewmgr.hxx"
110 #include "splash.hxx"
111 #include "renderer.hxx"
112 #include "CameraGroup.hxx"
113 #include "FGEventHandler.hxx"
118 using namespace simgear;
119 using namespace flightgear;
121 class FGHintUpdateCallback : public osg::StateAttribute::Callback {
123 FGHintUpdateCallback(const char* configNode) :
124 mConfigNode(fgGetNode(configNode, true))
126 virtual void operator()(osg::StateAttribute* stateAttribute,
129 assert(dynamic_cast<osg::Hint*>(stateAttribute));
130 osg::Hint* hint = static_cast<osg::Hint*>(stateAttribute);
132 const char* value = mConfigNode->getStringValue();
134 hint->setMode(GL_DONT_CARE);
135 else if (0 == strcmp(value, "nicest"))
136 hint->setMode(GL_NICEST);
137 else if (0 == strcmp(value, "fastest"))
138 hint->setMode(GL_FASTEST);
140 hint->setMode(GL_DONT_CARE);
143 SGPropertyNode_ptr mConfigNode;
147 class SGPuDrawable : public osg::Drawable {
151 // Dynamic stuff, do not store geometry
152 setUseDisplayList(false);
153 setDataVariance(Object::DYNAMIC);
155 osg::StateSet* stateSet = getOrCreateStateSet();
156 stateSet->setRenderBinDetails(1001, "RenderBin");
157 // speed optimization?
158 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
159 // We can do translucent menus, so why not. :-)
160 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
161 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
162 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
164 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
166 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
167 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
169 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
170 { drawImplementation(*renderInfo.getState()); }
171 void drawImplementation(osg::State& state) const
173 state.setActiveTextureUnit(0);
174 state.setClientActiveTextureUnit(0);
176 state.disableAllVertexArrays();
178 glPushAttrib(GL_ALL_ATTRIB_BITS);
179 glPushClientAttrib(~0u);
187 virtual osg::Object* cloneType() const { return new SGPuDrawable; }
188 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGPuDrawable; }
193 class SGHUDDrawable : public osg::Drawable {
197 // Dynamic stuff, do not store geometry
198 setUseDisplayList(false);
199 setDataVariance(Object::DYNAMIC);
201 osg::StateSet* stateSet = getOrCreateStateSet();
202 stateSet->setRenderBinDetails(1000, "RenderBin");
204 // speed optimization?
205 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
206 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
207 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
208 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
209 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
211 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
213 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
214 { drawImplementation(*renderInfo.getState()); }
215 void drawImplementation(osg::State& state) const
217 state.setActiveTextureUnit(0);
218 state.setClientActiveTextureUnit(0);
219 state.disableAllVertexArrays();
221 glPushAttrib(GL_ALL_ATTRIB_BITS);
222 glPushClientAttrib(~0u);
225 HUD *hud = static_cast<HUD*>(globals->get_subsystem("hud"));
234 virtual osg::Object* cloneType() const { return new SGHUDDrawable; }
235 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGHUDDrawable; }
240 class FGLightSourceUpdateCallback : public osg::NodeCallback {
244 * @param isSun true if the light is the actual sun i.e., for
245 * illuminating the moon.
247 FGLightSourceUpdateCallback(bool isSun = false) : _isSun(isSun) {}
248 FGLightSourceUpdateCallback(const FGLightSourceUpdateCallback& nc,
250 : NodeCallback(nc, op), _isSun(nc._isSun)
252 META_Object(flightgear,FGLightSourceUpdateCallback);
254 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
256 assert(dynamic_cast<osg::LightSource*>(node));
257 osg::LightSource* lightSource = static_cast<osg::LightSource*>(node);
258 osg::Light* light = lightSource->getLight();
260 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
262 // lighting is down during re-init
267 light->setAmbient(Vec4(0.0f, 0.0f, 0.0f, 0.0f));
268 light->setDiffuse(Vec4(1.0f, 1.0f, 1.0f, 1.0f));
269 light->setSpecular(Vec4(0.0f, 0.0f, 0.0f, 0.0f));
271 light->setAmbient(toOsg(l->scene_ambient()));
272 light->setDiffuse(toOsg(l->scene_diffuse()));
273 light->setSpecular(toOsg(l->scene_specular()));
275 osg::Vec4f position(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2], 0);
276 light->setPosition(position);
284 class FGWireFrameModeUpdateCallback : public osg::StateAttribute::Callback {
286 FGWireFrameModeUpdateCallback() :
287 mWireframe(fgGetNode("/sim/rendering/wireframe", true))
289 virtual void operator()(osg::StateAttribute* stateAttribute,
292 assert(dynamic_cast<osg::PolygonMode*>(stateAttribute));
293 osg::PolygonMode* polygonMode;
294 polygonMode = static_cast<osg::PolygonMode*>(stateAttribute);
296 if (mWireframe->getBoolValue())
297 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
298 osg::PolygonMode::LINE);
300 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
301 osg::PolygonMode::FILL);
304 SGPropertyNode_ptr mWireframe;
307 class FGLightModelUpdateCallback : public osg::StateAttribute::Callback {
309 FGLightModelUpdateCallback() :
310 mHighlights(fgGetNode("/sim/rendering/specular-highlight", true))
312 virtual void operator()(osg::StateAttribute* stateAttribute,
315 assert(dynamic_cast<osg::LightModel*>(stateAttribute));
316 osg::LightModel* lightModel;
317 lightModel = static_cast<osg::LightModel*>(stateAttribute);
320 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
321 lightModel->setAmbientIntensity(toOsg(l->scene_ambient());
323 lightModel->setAmbientIntensity(osg::Vec4(0, 0, 0, 1));
325 lightModel->setTwoSided(true);
326 lightModel->setLocalViewer(false);
328 if (mHighlights->getBoolValue()) {
329 lightModel->setColorControl(osg::LightModel::SEPARATE_SPECULAR_COLOR);
331 lightModel->setColorControl(osg::LightModel::SINGLE_COLOR);
335 SGPropertyNode_ptr mHighlights;
338 class FGFogEnableUpdateCallback : public osg::StateSet::Callback {
340 FGFogEnableUpdateCallback() :
341 mFogEnabled(fgGetNode("/sim/rendering/fog", true))
343 virtual void operator()(osg::StateSet* stateSet, osg::NodeVisitor*)
345 if (strcmp(mFogEnabled->getStringValue(), "disabled") == 0) {
346 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
348 stateSet->setMode(GL_FOG, osg::StateAttribute::ON);
352 SGPropertyNode_ptr mFogEnabled;
355 class FGFogUpdateCallback : public osg::StateAttribute::Callback {
357 virtual void operator () (osg::StateAttribute* sa, osg::NodeVisitor* nv)
359 assert(dynamic_cast<SGUpdateVisitor*>(nv));
360 assert(dynamic_cast<osg::Fog*>(sa));
361 SGUpdateVisitor* updateVisitor = static_cast<SGUpdateVisitor*>(nv);
362 osg::Fog* fog = static_cast<osg::Fog*>(sa);
363 fog->setMode(osg::Fog::EXP2);
364 fog->setColor(toOsg(updateVisitor->getFogColor()));
365 fog->setDensity(updateVisitor->getFogExp2Density());
369 // update callback for the switch node guarding that splash
370 class FGScenerySwitchCallback : public osg::NodeCallback {
372 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
374 assert(dynamic_cast<osg::Switch*>(node));
375 osg::Switch* sw = static_cast<osg::Switch*>(node);
377 bool enabled = scenery_enabled;
378 sw->setValue(0, enabled);
384 static bool scenery_enabled;
387 bool FGScenerySwitchCallback::scenery_enabled = false;
389 #ifdef FG_JPEG_SERVER
390 static void updateRenderer()
392 globals->get_renderer()->update();
396 FGRenderer::FGRenderer() :
398 _ambientFactor( new osg::Uniform( "fg_SunAmbientColor", osg::Vec4f() ) ),
399 _sunDiffuse( new osg::Uniform( "fg_SunDiffuseColor", osg::Vec4f() ) ),
400 _sunSpecular( new osg::Uniform( "fg_SunSpecularColor", osg::Vec4f() ) ),
401 _sunDirection( new osg::Uniform( "fg_SunDirection", osg::Vec3f() ) ),
402 _planes( new osg::Uniform( "fg_Planes", osg::Vec3f() ) ),
403 _fogColor( new osg::Uniform( "fg_FogColor", osg::Vec4f(1.0, 1.0, 1.0, 1.0) ) ),
404 _fogDensity( new osg::Uniform( "fg_FogDensity", 0.0001f ) ),
405 _shadowNumber( new osg::Uniform( "fg_ShadowNumber", (int)4 ) ),
406 _shadowDistances( new osg::Uniform( "fg_ShadowDistances", osg::Vec4f(5.0, 50.0, 500.0, 5000.0 ) ) ),
407 _depthInColor( new osg::Uniform( "fg_DepthInColor", false ) )
409 #ifdef FG_JPEG_SERVER
410 jpgRenderFrame = updateRenderer;
413 // it's not the real root, whatever that means
414 _root = new osg::Group;
415 _root->setName("fakeRoot");
417 _updateVisitor = new SGUpdateVisitor;
418 _root = new osg::Group;
419 _deferredRealRoot = new osg::Group;
422 _cascadeFar[0] = 5.f;
423 _cascadeFar[1] = 50.f;
424 _cascadeFar[2] = 500.f;
425 _cascadeFar[3] = 5000.f;
428 FGRenderer::~FGRenderer()
430 SGPropertyChangeListenerVec::iterator i = _listeners.begin();
431 for (; i != _listeners.end(); ++i) {
435 #ifdef FG_JPEG_SERVER
436 jpgRenderFrame = NULL;
441 // Initialize various GL/view parameters
442 // XXX This should be called "preinit" or something, as it initializes
443 // critical parts of the scene graph in addition to the splash screen.
445 FGRenderer::splashinit( void )
447 osgViewer::Viewer* viewer = getViewer();
448 viewer->setName("osgViewer");
449 _viewerSceneRoot = dynamic_cast<osg::Group*>(viewer->getSceneData());
450 _viewerSceneRoot->setName("viewerSceneRoot");
452 ref_ptr<Node> splashNode = fgCreateSplashNode();
453 if (_classicalRenderer) {
454 _viewerSceneRoot->addChild(splashNode.get());
456 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
457 ii != CameraGroup::getDefault()->camerasEnd();
460 CameraInfo* info = ii->get();
461 Camera* camera = info->getCamera(DISPLAY_CAMERA);
462 if (camera == 0) continue;
464 camera->addChild(splashNode.get());
468 _frameStamp = viewer->getFrameStamp();
469 // Scene doesn't seem to pass the frame stamp to the update
470 // visitor automatically.
471 _updateVisitor->setFrameStamp(_frameStamp.get());
472 viewer->setUpdateVisitor(_updateVisitor.get());
473 fgSetDouble("/sim/startup/splash-alpha", 1.0);
476 class ShadowMapSizeListener : public SGPropertyChangeListener {
478 virtual void valueChanged(SGPropertyNode* node) {
479 globals->get_renderer()->updateShadowMapSize(node->getIntValue());
483 class ShadowEnabledListener : public SGPropertyChangeListener {
485 virtual void valueChanged(SGPropertyNode* node) {
486 globals->get_renderer()->enableShadows(node->getBoolValue());
490 class ShadowNumListener : public SGPropertyChangeListener {
492 virtual void valueChanged(SGPropertyNode* node) {
493 globals->get_renderer()->updateCascadeNumber(node->getIntValue());
497 class ShadowRangeListener : public SGPropertyChangeListener {
499 virtual void valueChanged(SGPropertyNode* node) {
500 globals->get_renderer()->updateCascadeFar(node->getIndex(), node->getFloatValue());
505 FGRenderer::addChangeListener(SGPropertyChangeListener* l, const char* path)
507 _listeners.push_back(l);
508 fgAddChangeListener(l, path);
512 FGRenderer::init( void )
515 eventHandler = new FGEventHandler();
517 sgUserDataInit( globals->get_props() );
519 _classicalRenderer = !fgGetBool("/sim/rendering/rembrandt/enabled", false);
520 _shadowMapSize = fgGetInt( "/sim/rendering/shadows/map-size", 4096 );
521 addChangeListener( new ShadowMapSizeListener, "/sim/rendering/shadows/map-size" );
522 addChangeListener( new ShadowEnabledListener, "/sim/rendering/shadows/enabled" );
523 ShadowRangeListener* srl = new ShadowRangeListener;
524 addChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[0]");
525 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[1]");
526 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[2]");
527 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[3]");
528 addChangeListener(new ShadowNumListener, "/sim/rendering/shadows/num-cascades");
529 _numCascades = fgGetInt("/sim/rendering/shadows/num-cascades", 4);
530 _cascadeFar[0] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[0]", 5.0f);
531 _cascadeFar[1] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[1]", 50.0f);
532 _cascadeFar[2] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[2]", 500.0f);
533 _cascadeFar[3] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[3]", 5000.0f);
534 updateCascadeNumber(_numCascades);
535 updateCascadeFar(0, _cascadeFar[0]);
536 updateCascadeFar(1, _cascadeFar[1]);
537 updateCascadeFar(2, _cascadeFar[2]);
538 updateCascadeFar(3, _cascadeFar[3]);
539 _useColorForDepth = fgGetBool( "/sim/rendering/rembrandt/use-color-for-depth", false );
540 _depthInColor->set( _useColorForDepth );
542 _renderer = fgGetString("/sim/rendering/rembrandt/renderer", "default-pipeline");
543 if (!_classicalRenderer)
544 _pipeline = makeRenderingPipeline(_renderer, 0);
545 _scenery_loaded = fgGetNode("/sim/sceneryloaded", true);
546 _position_finalized = fgGetNode("/sim/position-finalized", true);
548 _panel_hotspots = fgGetNode("/sim/panel-hotspots", true);
549 _virtual_cockpit = fgGetNode("/sim/virtual-cockpit", true);
551 _sim_delta_sec = fgGetNode("/sim/time/delta-sec", true);
553 _xsize = fgGetNode("/sim/startup/xsize", true);
554 _ysize = fgGetNode("/sim/startup/ysize", true);
555 _splash_alpha = fgGetNode("/sim/startup/splash-alpha", true);
557 _skyblend = fgGetNode("/sim/rendering/skyblend", true);
558 _point_sprites = fgGetNode("/sim/rendering/point-sprites", true);
559 _enhanced_lighting = fgGetNode("/sim/rendering/enhanced-lighting", true);
560 _distance_attenuation = fgGetNode("/sim/rendering/distance-attenuation", true);
561 _horizon_effect = fgGetNode("/sim/rendering/horizon-effect", true);
562 _textures = fgGetNode("/sim/rendering/textures", true);
564 _altitude_ft = fgGetNode("/position/altitude-ft", true);
566 _cloud_status = fgGetNode("/environment/clouds/status", true);
567 _visibility_m = fgGetNode("/environment/visibility-m", true);
569 bool use_point_sprites = _point_sprites->getBoolValue();
570 bool enhanced_lighting = _enhanced_lighting->getBoolValue();
571 bool distance_attenuation = _distance_attenuation->getBoolValue();
573 SGConfigureDirectionalLights( use_point_sprites, enhanced_lighting,
574 distance_attenuation );
576 if (const char* tc = fgGetString("/sim/rendering/texture-compression", NULL)) {
577 if (strcmp(tc, "false") == 0 || strcmp(tc, "off") == 0 ||
578 strcmp(tc, "0") == 0 || strcmp(tc, "no") == 0 ||
579 strcmp(tc, "none") == 0) {
580 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::DoNotUseCompression);
581 } else if (strcmp(tc, "arb") == 0) {
582 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseARBCompression);
583 } else if (strcmp(tc, "dxt1") == 0) {
584 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT1Compression);
585 } else if (strcmp(tc, "dxt3") == 0) {
586 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT3Compression);
587 } else if (strcmp(tc, "dxt5") == 0) {
588 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT5Compression);
590 SG_LOG(SG_VIEW, SG_WARN, "Unknown texture compression setting!");
594 // create sky, but can't build until setupView, since we depend
595 // on other subsystems to be inited, eg Ephemeris
598 SGPath texture_path(globals->get_fg_root());
599 texture_path.append("Textures");
600 texture_path.append("Sky");
601 for (int i = 0; i < FGEnvironmentMgr::MAX_CLOUD_LAYERS; i++) {
602 SGCloudLayer * layer = new SGCloudLayer(texture_path.str());
603 _sky->add_cloud_layer(layer);
606 _sky->texture_path( texture_path.str() );
608 if (!_classicalRenderer) {
609 eventHandler->setChangeStatsCameraRenderOrder( true );
610 _sky->set_minimum_sky_visibility( 0.0 ); // A black sky appears for below that
614 void installCullVisitor(Camera* camera)
616 osgViewer::Renderer* renderer
617 = static_cast<osgViewer::Renderer*>(camera->getRenderer());
618 for (int i = 0; i < 2; ++i) {
619 osgUtil::SceneView* sceneView = renderer->getSceneView(i);
621 osg::ref_ptr<osgUtil::CullVisitor::Identifier> identifier;
622 identifier = sceneView->getCullVisitor()->getIdentifier();
623 sceneView->setCullVisitor(new simgear::EffectCullVisitor);
624 sceneView->getCullVisitor()->setIdentifier(identifier.get());
626 identifier = sceneView->getCullVisitorLeft()->getIdentifier();
627 sceneView->setCullVisitorLeft(sceneView->getCullVisitor()->clone());
628 sceneView->getCullVisitorLeft()->setIdentifier(identifier.get());
630 identifier = sceneView->getCullVisitorRight()->getIdentifier();
631 sceneView->setCullVisitorRight(sceneView->getCullVisitor()->clone());
632 sceneView->getCullVisitorRight()->setIdentifier(identifier.get());
638 FGRenderer::buildRenderingPipeline(CameraGroup* cgroup, unsigned flags, Camera* camera,
640 const Matrix& projection,
641 osg::GraphicsContext* gc,
642 bool useMasterSceneData)
644 CameraInfo* info = 0;
645 if (!_classicalRenderer && (flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0)
646 info = buildDeferredPipeline( cgroup, flags, camera, view, projection, gc );
651 if ((flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0)
652 _classicalRenderer = true;
653 return buildClassicalPipeline( cgroup, flags, camera, view, projection, useMasterSceneData );
658 FGRenderer::buildClassicalPipeline(CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
659 const osg::Matrix& view,
660 const osg::Matrix& projection,
661 bool useMasterSceneData)
663 CameraInfo* info = new CameraInfo(flags);
664 // The camera group will always update the camera
665 camera->setReferenceFrame(Transform::ABSOLUTE_RF);
666 info->name = "classic";
668 Camera* farCamera = 0;
669 if ((flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0) {
670 farCamera = new Camera;
671 farCamera->setName("farCamera");
672 farCamera->setAllowEventFocus(camera->getAllowEventFocus());
673 farCamera->setGraphicsContext(camera->getGraphicsContext());
674 farCamera->setCullingMode(camera->getCullingMode());
675 farCamera->setInheritanceMask(camera->getInheritanceMask());
676 farCamera->setReferenceFrame(Transform::ABSOLUTE_RF);
677 // Each camera's viewport is written when the window is
678 // resized; if the the viewport isn't copied here, it gets updated
679 // twice and ends up with the wrong value.
680 farCamera->setViewport(simgear::clone(camera->getViewport()));
681 farCamera->setDrawBuffer(camera->getDrawBuffer());
682 farCamera->setReadBuffer(camera->getReadBuffer());
683 farCamera->setRenderTargetImplementation(
684 camera->getRenderTargetImplementation());
685 const Camera::BufferAttachmentMap& bufferMap
686 = camera->getBufferAttachmentMap();
687 if (bufferMap.count(Camera::COLOR_BUFFER) != 0) {
689 Camera::COLOR_BUFFER,
690 bufferMap.find(Camera::COLOR_BUFFER)->second._texture.get());
692 cgroup->getViewer()->addSlave(farCamera, projection, view, useMasterSceneData);
693 installCullVisitor(farCamera);
694 int farSlaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
695 info->addCamera( FAR_CAMERA, farCamera, farSlaveIndex );
696 farCamera->setRenderOrder(Camera::POST_RENDER, farSlaveIndex);
697 camera->setCullMask(camera->getCullMask() & ~simgear::BACKGROUND_BIT);
698 camera->setClearMask(GL_DEPTH_BUFFER_BIT);
700 cgroup->getViewer()->addSlave(camera, projection, view, useMasterSceneData);
701 installCullVisitor(camera);
702 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
703 info->addCamera( MAIN_CAMERA, camera, slaveIndex );
704 camera->setRenderOrder(Camera::POST_RENDER, slaveIndex);
705 cgroup->addCamera(info);
709 class FGDeferredRenderingCameraCullCallback : public osg::NodeCallback {
711 FGDeferredRenderingCameraCullCallback( const std::string& k, CameraInfo* i, bool nd = false ) : kind( k ), info( i ), needsDuDv(nd) {}
712 virtual void operator()( osg::Node *n, osg::NodeVisitor *nv) {
713 simgear::EffectCullVisitor* cv = dynamic_cast<simgear::EffectCullVisitor*>(nv);
714 osg::Camera* camera = static_cast<osg::Camera*>(n);
716 cv->clearBufferList();
717 for (RenderBufferMap::iterator ii = info->buffers.begin(); ii != info->buffers.end(); ++ii) {
718 cv->addBuffer(ii->first, ii->second.texture);
721 if ( !info->getRenderStageInfo(kind).fullscreen )
722 info->setMatrices( camera );
725 osg::Matrix projInverse;
726 info->projInverse->get( projInverse );
728 osg::Vec4 p0 = osg::Vec4( -1.0, -1.0, 0.0, 1.0 ) * projInverse;
729 info->du->set( osg::Vec4( 1.0, -1.0, 0.0, 1.0 ) * projInverse - p0 );
730 info->dv->set( osg::Vec4( -1.0, 1.0, 0.0, 1.0 ) * projInverse - p0 );
733 cv->traverse( *camera );
735 if ( kind == GEOMETRY_CAMERA ) {
736 // Remove transparent bins. They will be renderer in the additional light stage (side effect)
737 osgUtil::RenderStage* renderStage = cv->getRenderStage();
738 osgUtil::RenderBin::RenderBinList& rbl = renderStage->getRenderBinList();
739 for (osgUtil::RenderBin::RenderBinList::iterator rbi = rbl.begin(); rbi != rbl.end(); ) {
740 if (rbi->second->getSortMode() == osgUtil::RenderBin::SORT_BACK_TO_FRONT) {
746 } else if ( kind == LIGHTING_CAMERA ) {
747 osg::ref_ptr<osg::Camera> mainShadowCamera = info->getCamera( SHADOW_CAMERA );
748 if (mainShadowCamera.valid()) {
749 osg::Switch* grp = mainShadowCamera->getChild(0)->asSwitch();
750 for (int i = 0; i < 4; ++i ) {
751 if (!grp->getValue(i))
754 osg::Camera* cascadeCam = static_cast<osg::Camera*>( grp->getChild(i) );
755 osg::Matrixf shadowMatrix = camera->getInverseViewMatrix() *
756 cascadeCam->getViewMatrix() *
757 cascadeCam->getProjectionMatrix() *
758 osg::Matrix::translate(1.0, 1.0, 1.0) *
759 osg::Matrix::scale(0.5f, 0.5f, 0.5f);
761 info->shadowMatrix[i]->set( shadowMatrix );
773 osg::Texture2D* buildDeferredBuffer(GLint internalFormat, GLenum sourceFormat, GLenum sourceType, GLenum wrapMode, bool shadowComparison = false)
775 osg::Texture2D* tex = new osg::Texture2D;
776 tex->setResizeNonPowerOfTwoHint( false );
777 tex->setInternalFormat( internalFormat );
778 tex->setShadowComparison(shadowComparison);
779 if (shadowComparison) {
780 tex->setShadowTextureMode(osg::Texture2D::LUMINANCE);
781 tex->setBorderColor(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
783 tex->setSourceFormat(sourceFormat);
784 tex->setSourceType(sourceType);
785 tex->setFilter( osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR );
786 tex->setFilter( osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR );
787 tex->setWrap( osg::Texture::WRAP_S, (osg::Texture::WrapMode)wrapMode );
788 tex->setWrap( osg::Texture::WRAP_T, (osg::Texture::WrapMode)wrapMode );
792 void attachBufferToCamera( CameraInfo* info, osg::Camera* camera, osg::Camera::BufferComponent c, const std::string& ck, const std::string& bk )
794 camera->attach( c, info->getBuffer(bk) );
795 info->getRenderStageInfo(ck).buffers.insert( std::make_pair( c, bk ) );
798 void buildAttachments(CameraInfo* info, osg::Camera* camera, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments) {
799 BOOST_FOREACH(ref_ptr<FGRenderingPipeline::Attachment> attachment, attachments) {
800 if (attachment->valid())
801 attachBufferToCamera( info, camera, attachment->component, name, attachment->buffer );
805 osg::Camera* FGRenderer::buildDeferredGeometryCamera( CameraInfo* info, osg::GraphicsContext* gc, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments )
807 osg::Camera* camera = new osg::Camera;
808 info->addCamera(name, camera );
810 camera->setCullMask( ~simgear::MODELLIGHT_BIT );
811 camera->setName( "GeometryC" );
812 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
813 camera->setGraphicsContext( gc );
814 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( name, info ) );
815 camera->setClearMask( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
816 camera->setClearColor( osg::Vec4( 0., 0., 0., 0. ) );
817 camera->setClearDepth( 1.0 );
818 camera->setColorMask(true, true, true, true);
819 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
820 camera->setRenderOrder(osg::Camera::NESTED_RENDER, 0);
821 camera->setViewport( new osg::Viewport );
822 buildAttachments(info, camera, name, attachments);
823 camera->setDrawBuffer(GL_FRONT);
824 camera->setReadBuffer(GL_FRONT);
826 osg::StateSet* ss = camera->getOrCreateStateSet();
827 ss->addUniform( _depthInColor );
829 camera->addChild( _deferredRealRoot.get() );
834 static void setShadowCascadeStateSet( osg::Camera* cam ) {
835 osg::StateSet* ss = cam->getOrCreateStateSet();
836 ss->setAttribute( new osg::PolygonOffset( 1.1f, 5.0f ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
837 ss->setMode( GL_POLYGON_OFFSET_FILL, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
838 ss->setRenderBinDetails( 0, "RenderBin", osg::StateSet::OVERRIDE_RENDERBIN_DETAILS );
839 ss->setAttributeAndModes( new osg::AlphaFunc( osg::AlphaFunc::GREATER, 0.05 ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
840 ss->setAttributeAndModes( new osg::ColorMask( false, false, false, false ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
841 ss->setAttributeAndModes( new osg::CullFace( osg::CullFace::FRONT ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
842 osg::Program* program = new osg::Program;
843 ss->setAttribute( program, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
844 ss->setMode( GL_LIGHTING, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
845 ss->setMode( GL_BLEND, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
846 //ss->setTextureMode( 0, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
847 ss->setTextureMode( 0, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
848 ss->setTextureMode( 1, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
849 ss->setTextureMode( 1, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
850 ss->setTextureMode( 2, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
851 ss->setTextureMode( 2, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
854 static osg::Camera* createShadowCascadeCamera( int no, int cascadeSize ) {
855 osg::Camera* cascadeCam = new osg::Camera;
856 setShadowCascadeStateSet( cascadeCam );
858 std::ostringstream oss;
859 oss << "CascadeCamera" << (no + 1);
860 cascadeCam->setName( oss.str() );
861 cascadeCam->setClearMask(0);
862 cascadeCam->setCullMask( simgear::CASTSHADOW_BIT );
863 cascadeCam->setCullingMode( cascadeCam->getCullingMode() | osg::CullSettings::SMALL_FEATURE_CULLING );
864 cascadeCam->setAllowEventFocus(false);
865 cascadeCam->setReferenceFrame(osg::Transform::ABSOLUTE_RF_INHERIT_VIEWPOINT);
866 cascadeCam->setRenderOrder(osg::Camera::NESTED_RENDER);
867 cascadeCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
868 cascadeCam->setViewport( int( no / 2 ) * cascadeSize, (no & 1) * cascadeSize, cascadeSize, cascadeSize );
872 osg::Camera* FGRenderer::buildDeferredShadowCamera( CameraInfo* info, osg::GraphicsContext* gc, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments )
874 osg::Camera* mainShadowCamera = new osg::Camera;
875 info->addCamera(name, mainShadowCamera, 0.0f );
877 mainShadowCamera->setName( "ShadowC" );
878 mainShadowCamera->setClearMask( GL_DEPTH_BUFFER_BIT );
879 mainShadowCamera->setClearDepth( 1.0 );
880 mainShadowCamera->setAllowEventFocus(false);
881 mainShadowCamera->setGraphicsContext(gc);
882 mainShadowCamera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
883 buildAttachments(info, mainShadowCamera, name, attachments);
884 mainShadowCamera->setComputeNearFarMode(osg::Camera::DO_NOT_COMPUTE_NEAR_FAR);
885 mainShadowCamera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
886 mainShadowCamera->setProjectionMatrix(osg::Matrix::identity());
887 mainShadowCamera->setCullingMode( osg::CullSettings::NO_CULLING );
888 mainShadowCamera->setViewport( 0, 0, _shadowMapSize, _shadowMapSize );
889 mainShadowCamera->setDrawBuffer(GL_FRONT);
890 mainShadowCamera->setReadBuffer(GL_FRONT);
891 mainShadowCamera->setRenderOrder(Camera::NESTED_RENDER, 1);
893 osg::Switch* shadowSwitch = new osg::Switch;
894 mainShadowCamera->addChild( shadowSwitch );
896 for (int i = 0; i < 4; ++i ) {
897 osg::Camera* cascadeCam = createShadowCascadeCamera( i, _shadowMapSize/2 );
898 cascadeCam->addChild( _deferredRealRoot.get() );
899 shadowSwitch->addChild( cascadeCam );
901 if (fgGetBool("/sim/rendering/shadows/enabled", true))
902 shadowSwitch->setAllChildrenOn();
904 shadowSwitch->setAllChildrenOff();
906 return mainShadowCamera;
909 void FGRenderer::updateShadowCascade(const CameraInfo* info, osg::Camera* camera, osg::Group* grp, int idx, double left, double right, double bottom, double top, double zNear, double f1, double f2)
911 osg::Camera* cascade = static_cast<osg::Camera*>( grp->getChild(idx) );
912 osg::Matrixd &viewMatrix = cascade->getViewMatrix();
913 osg::Matrixd &projectionMatrix = cascade->getProjectionMatrix();
915 osg::BoundingSphere bs;
916 bs.expandBy(osg::Vec3(left,bottom,-zNear) * f1);
917 bs.expandBy(osg::Vec3(right,top,-zNear) * f2);
918 bs.expandBy(osg::Vec3(left,bottom,-zNear) * f2);
919 bs.expandBy(osg::Vec3(right,top,-zNear) * f1);
921 osg::Vec4 aim = osg::Vec4(bs.center(), 1.0) * camera->getInverseViewMatrix();
923 projectionMatrix.makeOrtho( -bs.radius(), bs.radius(), -bs.radius(), bs.radius(), 1., 15000.0 );
924 osg::Vec3 position( aim.x(), aim.y(), aim.z() );
925 viewMatrix.makeLookAt( position + (getSunDirection() * 10000.0), position, position );
928 osg::Vec3 FGRenderer::getSunDirection() const
931 _sunDirection->get( val );
935 void FGRenderer::updateShadowCamera(const CameraInfo* info, const osg::Vec3d& position)
937 ref_ptr<Camera> mainShadowCamera = info->getCamera( SHADOW_CAMERA );
938 if (mainShadowCamera.valid()) {
939 ref_ptr<Switch> shadowSwitch = mainShadowCamera->getChild( 0 )->asSwitch();
940 osg::Vec3d up = position,
941 dir = getSunDirection();
944 // cos(100 deg) == -0.17
945 if (up * dir < -0.17 || !fgGetBool("/sim/rendering/shadows/enabled", true)) {
946 shadowSwitch->setAllChildrenOff();
948 double left,right,bottom,top,zNear,zFar;
949 ref_ptr<Camera> camera = info->getCamera(GEOMETRY_CAMERA);
950 camera->getProjectionMatrix().getFrustum(left,right,bottom,top,zNear,zFar);
952 shadowSwitch->setAllChildrenOn();
953 if (_numCascades == 1) {
954 osg::Camera* cascadeCam = static_cast<osg::Camera*>( shadowSwitch->getChild(0) );
955 cascadeCam->setViewport( 0, 0, _shadowMapSize, _shadowMapSize );
957 for (int no = 0; no < 4; ++no) {
958 osg::Camera* cascadeCam = static_cast<osg::Camera*>( shadowSwitch->getChild(no) );
959 cascadeCam->setViewport( int( no / 2 ) * (_shadowMapSize/2), (no & 1) * (_shadowMapSize/2), (_shadowMapSize/2), (_shadowMapSize/2) );
962 updateShadowCascade(info, camera, shadowSwitch, 0, left, right, bottom, top, zNear, 1.0, _cascadeFar[0]/zNear);
963 if (_numCascades > 1) {
964 shadowSwitch->setValue(1, true);
965 updateShadowCascade(info, camera, shadowSwitch, 1, left, right, bottom, top, zNear, _cascadeFar[0]/zNear, _cascadeFar[1]/zNear);
967 shadowSwitch->setValue(1, false);
969 if (_numCascades > 2) {
970 shadowSwitch->setValue(2, true);
971 updateShadowCascade(info, camera, shadowSwitch, 2, left, right, bottom, top, zNear, _cascadeFar[1]/zNear, _cascadeFar[2]/zNear);
973 shadowSwitch->setValue(2, false);
975 if (_numCascades > 3) {
976 shadowSwitch->setValue(3, true);
977 updateShadowCascade(info, camera, shadowSwitch, 3, left, right, bottom, top, zNear, _cascadeFar[2]/zNear, _cascadeFar[3]/zNear);
979 shadowSwitch->setValue(3, false);
982 osg::Matrixd &viewMatrix = mainShadowCamera->getViewMatrix();
984 osg::Vec4 aim = osg::Vec4( 0.0, 0.0, 0.0, 1.0 ) * camera->getInverseViewMatrix();
986 osg::Vec3 position( aim.x(), aim.y(), aim.z() );
987 viewMatrix.makeLookAt( position, position + (getSunDirection() * 10000.0), position );
993 void FGRenderer::updateShadowMapSize(int mapSize)
995 if ( ((~( mapSize-1 )) & mapSize) != mapSize ) {
996 SG_LOG( SG_VIEW, SG_ALERT, "Map size is not a power of two" );
999 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
1000 ii != CameraGroup::getDefault()->camerasEnd();
1003 CameraInfo* info = ii->get();
1004 Camera* camera = info->getCamera(SHADOW_CAMERA);
1005 if (camera == 0) continue;
1007 Texture2D* tex = info->getBuffer("shadow");
1008 if (tex == 0) continue;
1010 tex->setTextureSize( mapSize, mapSize );
1011 tex->dirtyTextureObject();
1013 Viewport* vp = camera->getViewport();
1014 vp->width() = mapSize;
1015 vp->height() = mapSize;
1017 osgViewer::Renderer* renderer
1018 = static_cast<osgViewer::Renderer*>(camera->getRenderer());
1019 for (int i = 0; i < 2; ++i) {
1020 osgUtil::SceneView* sceneView = renderer->getSceneView(i);
1021 sceneView->getRenderStage()->setFrameBufferObject(0);
1022 sceneView->getRenderStage()->setCameraRequiresSetUp(true);
1023 if (sceneView->getRenderStageLeft()) {
1024 sceneView->getRenderStageLeft()->setFrameBufferObject(0);
1025 sceneView->getRenderStageLeft()->setCameraRequiresSetUp(true);
1027 if (sceneView->getRenderStageRight()) {
1028 sceneView->getRenderStageRight()->setFrameBufferObject(0);
1029 sceneView->getRenderStageRight()->setCameraRequiresSetUp(true);
1033 int cascadeSize = mapSize / 2;
1034 Group* grp = camera->getChild(0)->asGroup();
1035 for (int i = 0; i < 4; ++i ) {
1036 Camera* cascadeCam = static_cast<Camera*>( grp->getChild(i) );
1037 cascadeCam->setViewport( int( i / 2 ) * cascadeSize, (i & 1) * cascadeSize, cascadeSize, cascadeSize );
1040 _shadowMapSize = mapSize;
1044 void FGRenderer::enableShadows(bool enabled)
1046 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
1047 ii != CameraGroup::getDefault()->camerasEnd();
1050 CameraInfo* info = ii->get();
1051 Camera* camera = info->getCamera(SHADOW_CAMERA);
1052 if (camera == 0) continue;
1054 osg::Switch* shadowSwitch = camera->getChild(0)->asSwitch();
1056 shadowSwitch->setAllChildrenOn();
1058 shadowSwitch->setAllChildrenOff();
1062 void FGRenderer::updateCascadeFar(int index, float far_m)
1064 if (index < 0 || index > 3)
1066 _cascadeFar[index] = far_m;
1067 _shadowDistances->set( osg::Vec4f(_cascadeFar[0], _cascadeFar[1], _cascadeFar[2], _cascadeFar[3]) );
1070 void FGRenderer::updateCascadeNumber(size_t num)
1072 if (num < 1 || num > 4)
1075 _shadowNumber->set( (int)_numCascades );
1078 class DebugPassListener : public SGPropertyChangeListener {
1080 DebugPassListener(osg::Switch* sw, int i) : _switch(sw), _index(i) {}
1081 virtual void valueChanged(SGPropertyNode* node) {
1082 _switch->setValue(_index, node->getBoolValue());
1086 osg::ref_ptr<osg::Switch> _switch;
1091 FGRenderer::buildDeferredLightingCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc, const FGRenderingPipeline::Stage* stage )
1093 osg::Camera* camera = new osg::Camera;
1094 info->addCamera(stage->name, camera );
1096 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( stage->name, info ) );
1097 camera->setAllowEventFocus(false);
1098 camera->setGraphicsContext(gc);
1099 camera->setViewport(new Viewport);
1100 camera->setName(stage->name+"C");
1101 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1102 camera->setRenderOrder(osg::Camera::NESTED_RENDER, stage->orderNum);
1103 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
1104 camera->setViewport( new osg::Viewport );
1105 buildAttachments(info, camera, stage->name, stage->attachments);
1106 camera->setDrawBuffer(GL_FRONT);
1107 camera->setReadBuffer(GL_FRONT);
1108 camera->setClearColor( osg::Vec4( 0.5, 0.5, 0.5, 1. ) );
1109 camera->setClearMask( GL_COLOR_BUFFER_BIT );
1110 osg::StateSet* ss = camera->getOrCreateStateSet();
1111 ss->setAttribute( new osg::Depth(osg::Depth::LESS, 0.0, 1.0, false) );
1112 ss->addUniform( _depthInColor );
1114 osg::Switch* lightingGroup = new osg::Switch;
1116 BOOST_FOREACH( osg::ref_ptr<FGRenderingPipeline::Pass> pass, stage->passes ) {
1117 ref_ptr<Node> node = buildPass(info, pass);
1119 lightingGroup->addChild(node);
1120 if (!pass->debugProperty.empty()) {
1121 lightingGroup->setValue(lightingGroup->getNumChildren()-1, fgGetBool(pass->debugProperty));
1122 fgAddChangeListener(new DebugPassListener(lightingGroup, lightingGroup->getNumChildren()-1), pass->debugProperty);
1127 camera->addChild( lightingGroup );
1133 FGRenderer::buildDeferredPipeline(CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
1134 const osg::Matrix& view,
1135 const osg::Matrix& projection,
1136 osg::GraphicsContext* gc)
1138 return buildCameraFromRenderingPipeline(_pipeline, cgroup, flags, camera, view, projection, gc);
1142 FGRenderer::buildDeferredFullscreenCamera( flightgear::CameraInfo* info, const FGRenderingPipeline::Pass* pass )
1144 osg::Camera* camera = new osg::Camera;
1146 camera->setClearMask( 0 );
1147 camera->setAllowEventFocus(false);
1148 camera->setName(pass->name+"C");
1149 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1150 camera->setRenderOrder(osg::Camera::NESTED_RENDER, pass->orderNum);
1151 camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1152 camera->setViewMatrix(osg::Matrix::identity());
1153 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1155 osg::StateSet* ss = camera->getOrCreateStateSet();
1156 ss->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1157 ss->addUniform( info->projInverse );
1158 ss->addUniform( info->viewInverse );
1159 ss->addUniform( info->view );
1160 ss->addUniform( info->bufferSize );
1161 ss->addUniform( info->worldPosCart );
1162 ss->addUniform( info->worldPosGeod );
1163 ss->addUniform( info->shadowMatrix[0] );
1164 ss->addUniform( info->shadowMatrix[1] );
1165 ss->addUniform( info->shadowMatrix[2] );
1166 ss->addUniform( info->shadowMatrix[3] );
1167 ss->addUniform( _ambientFactor );
1168 ss->addUniform( _sunDiffuse );
1169 ss->addUniform( _sunSpecular );
1170 ss->addUniform( _sunDirection );
1171 ss->addUniform( _planes );
1172 ss->addUniform( _shadowNumber );
1173 ss->addUniform( _shadowDistances );
1174 ss->addUniform( _fogColor );
1175 ss->addUniform( _fogDensity );
1177 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1178 g->setUseDisplayList(false);
1179 simgear::EffectGeode* eg = new simgear::EffectGeode;
1180 osg::ref_ptr<SGReaderWriterOptions> opt;
1181 opt = SGReaderWriterOptions::fromPath(globals->get_fg_root());
1182 opt->setPropertyNode(globals->get_props());
1183 simgear::Effect* effect = simgear::makeEffect(pass->effect, true, opt.get());
1185 eg->setEffect( effect );
1188 eg->setName(pass->name+"Quad");
1189 eg->setCullingActive(false);
1191 camera->addChild(eg);
1197 FGRenderer::buildDeferredFullscreenCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc, const FGRenderingPipeline::Stage* stage )
1199 osg::Camera* camera = buildDeferredFullscreenCamera(info, static_cast<const FGRenderingPipeline::Pass*>(stage));
1200 info->addCamera(stage->name, camera, stage->scaleFactor, true);
1202 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback(stage->name, info, stage->needsDuDv) );
1203 camera->setGraphicsContext(gc);
1204 camera->setViewport(new Viewport);
1205 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
1206 buildAttachments(info, camera, stage->name, stage->attachments);
1207 camera->setDrawBuffer(GL_FRONT);
1208 camera->setReadBuffer(GL_FRONT);
1209 camera->setClearColor( osg::Vec4( 1., 1., 1., 1. ) );
1210 camera->setClearMask( GL_COLOR_BUFFER_BIT );
1211 camera->setViewMatrix(osg::Matrix::identity());
1212 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1214 osg::StateSet* ss = camera->getOrCreateStateSet();
1215 if (stage->needsDuDv) {
1216 ss->addUniform( info->du );
1217 ss->addUniform( info->dv );
1224 FGRenderer::buildDeferredDisplayCamera( osg::Camera* camera, flightgear::CameraInfo* info, const FGRenderingPipeline::Stage* stage, osg::GraphicsContext* gc )
1226 camera->setName( "DisplayC" );
1227 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( stage->name, info ) );
1228 camera->setReferenceFrame(Transform::ABSOLUTE_RF);
1229 camera->setAllowEventFocus(false);
1230 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1231 g->setUseDisplayList(false); //DEBUG
1232 simgear::EffectGeode* eg = new simgear::EffectGeode;
1233 osg::ref_ptr<SGReaderWriterOptions> opt;
1234 opt = SGReaderWriterOptions::fromPath(globals->get_fg_root());
1235 opt->setPropertyNode(globals->get_props());
1236 simgear::Effect* effect = simgear::makeEffect(stage->effect, true, opt.get());
1238 SG_LOG(SG_VIEW, SG_ALERT, stage->effect + " not found");
1241 eg->setEffect(effect);
1242 eg->setCullingActive(false);
1244 camera->setViewMatrix(osg::Matrix::identity());
1245 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1246 camera->addChild(eg);
1248 osg::StateSet* ss = camera->getOrCreateStateSet();
1249 ss->addUniform( _depthInColor );
1250 ss->addUniform( info->projInverse );
1251 ss->addUniform( info->viewInverse );
1252 ss->addUniform( info->view );
1253 ss->addUniform( info->bufferSize );
1254 ss->addUniform( info->worldPosCart );
1255 ss->addUniform( info->worldPosGeod );
1256 ss->addUniform( info->shadowMatrix[0] );
1257 ss->addUniform( info->shadowMatrix[1] );
1258 ss->addUniform( info->shadowMatrix[2] );
1259 ss->addUniform( info->shadowMatrix[3] );
1260 ss->addUniform( _ambientFactor );
1261 ss->addUniform( _sunDiffuse );
1262 ss->addUniform( _sunSpecular );
1263 ss->addUniform( _sunDirection );
1264 ss->addUniform( _planes );
1265 ss->addUniform( _shadowNumber );
1266 ss->addUniform( _shadowDistances );
1267 ss->addUniform( _fogColor );
1268 ss->addUniform( _fogDensity );
1272 FGRenderer::buildStage(CameraInfo* info,
1273 FGRenderingPipeline::Stage* stage,
1274 CameraGroup* cgroup,
1275 osg::Camera* mainCamera,
1276 const osg::Matrix& view, const osg::Matrix& projection, osg::GraphicsContext* gc)
1278 if (!stage->valid())
1281 ref_ptr<Camera> camera;
1282 bool needOffsets = false;
1283 if (stage->type == "geometry") {
1284 camera = buildDeferredGeometryCamera(info, gc, stage->name, stage->attachments);
1286 } else if (stage->type == "lighting") {
1287 camera = buildDeferredLightingCamera(info, gc, stage);
1289 } else if (stage->type == "shadow")
1290 camera = buildDeferredShadowCamera(info, gc, stage->name, stage->attachments);
1291 else if (stage->type == "fullscreen")
1292 camera = buildDeferredFullscreenCamera(info, gc, stage);
1293 else if (stage->type == "display") {
1294 camera = mainCamera;
1295 buildDeferredDisplayCamera(camera, info, stage, gc);
1297 throw sg_exception("Stage type is not supported");
1300 cgroup->getViewer()->addSlave(camera, projection, view, false);
1302 cgroup->getViewer()->addSlave(camera, false);
1303 installCullVisitor(camera);
1304 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1305 if (stage->type == "display")
1306 info->addCamera( stage->type, camera, slaveIndex, true );
1307 info->getRenderStageInfo(stage->name).slaveIndex = slaveIndex;
1311 FGRenderer::buildLightingSkyCloudsPass(FGRenderingPipeline::Pass* pass)
1313 Group* group = new Group;
1314 group->setName("skyCloudsGroup");
1315 group->setNodeMask(simgear::BACKGROUND_BIT);
1317 StateSet* ss = group->getOrCreateStateSet();
1318 ss->setAttributeAndModes( new osg::ColorMask( true, true, true, false ), osg::StateAttribute::ON );
1319 group->addChild( _sky->getPreRoot() );
1320 group->addChild( _sky->getCloudRoot() );
1325 FGRenderer::buildLightingLightsPass(CameraInfo* info, FGRenderingPipeline::Pass* pass)
1327 osg::Camera* lightCam = new osg::Camera;
1328 StateSet* ss = lightCam->getOrCreateStateSet();
1329 ss->addUniform( _planes );
1330 ss->addUniform( info->bufferSize );
1331 ss->addUniform( _fogColor );
1332 ss->addUniform( _fogDensity );
1333 lightCam->setName( "LightCamera" );
1334 lightCam->setClearMask(0);
1335 lightCam->setAllowEventFocus(false);
1336 lightCam->setReferenceFrame(osg::Transform::RELATIVE_RF);
1337 lightCam->setRenderOrder(osg::Camera::NESTED_RENDER,pass->orderNum);
1338 lightCam->setViewMatrix(osg::Matrix::identity());
1339 lightCam->setProjectionMatrix(osg::Matrix::identity());
1340 lightCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1341 lightCam->setCullMask( simgear::MODELLIGHT_BIT | simgear::PANEL2D_BIT | simgear::PERMANENTLIGHT_BIT);
1342 lightCam->setInheritanceMask( osg::CullSettings::ALL_VARIABLES & ~osg::CullSettings::CULL_MASK );
1343 lightCam->addChild( _deferredRealRoot.get() );
1349 FGRenderer::buildPass(CameraInfo* info, FGRenderingPipeline::Pass* pass)
1355 if (pass->type == "sky-clouds")
1356 node = buildLightingSkyCloudsPass(pass);
1357 else if (pass->type == "fullscreen")
1358 node = buildDeferredFullscreenCamera(info, pass);
1359 else if (pass->type == "lights")
1360 node = buildLightingLightsPass(info, pass);
1362 throw sg_exception("Pass type is not supported");
1364 return node.release();
1368 FGRenderer::buildBuffers(FGRenderingPipeline* rpipe, CameraInfo* info)
1370 for (size_t i = 0; i < rpipe->buffers.size(); ++i) {
1371 osg::ref_ptr<FGRenderingPipeline::Buffer> buffer = rpipe->buffers[i];
1372 if (buffer->valid()) {
1373 bool fullscreen = buffer->width == -1 && buffer->height == -1;
1374 info->addBuffer(buffer->name, buildDeferredBuffer( buffer->internalFormat,
1375 buffer->sourceFormat,
1378 buffer->shadowComparison),
1379 fullscreen ? buffer->scaleFactor : 0.0f);
1381 info->getBuffer(buffer->name)->setTextureSize(buffer->width, buffer->height);
1387 CameraInfo* FGRenderer::buildCameraFromRenderingPipeline(FGRenderingPipeline* rpipe, CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
1388 const osg::Matrix& view, const osg::Matrix& projection, osg::GraphicsContext* gc)
1390 CameraInfo* info = new CameraInfo(flags);
1391 buildBuffers(rpipe, info);
1393 for (size_t i = 0; i < rpipe->stages.size(); ++i) {
1394 osg::ref_ptr<FGRenderingPipeline::Stage> stage = rpipe->stages[i];
1395 buildStage(info, stage, cgroup, camera, view, projection, gc);
1398 cgroup->addCamera(info);
1404 FGRenderer::setupView( void )
1406 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1407 osg::initNotifyLevel();
1409 // The number of polygon-offset "units" to place between layers. In
1410 // principle, one is supposed to be enough. In practice, I find that
1411 // my hardware/driver requires many more.
1412 osg::PolygonOffset::setUnitsMultiplier(1);
1413 osg::PolygonOffset::setFactorMultiplier(1);
1416 // The sun and moon diameters are scaled down numbers of the
1417 // actual diameters. This was needed to fit both the sun and the
1418 // moon within the distance to the far clip plane.
1419 // Moon diameter: 3,476 kilometers
1420 // Sun diameter: 1,390,000 kilometers
1421 osg::ref_ptr<SGReaderWriterOptions> opt;
1422 opt = SGReaderWriterOptions::fromPath(globals->get_fg_root());
1423 opt->setPropertyNode(globals->get_props());
1424 _sky->build( 80000.0, 80000.0,
1426 *globals->get_ephem(),
1427 fgGetNode("/environment", true),
1431 ->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1433 osg::StateSet* stateSet = _root->getOrCreateStateSet();
1435 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
1437 stateSet->setAttribute(new osg::Depth(osg::Depth::LESS));
1438 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1440 stateSet->setAttribute(new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01));
1441 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::OFF);
1442 stateSet->setAttribute(new osg::BlendFunc);
1443 stateSet->setMode(GL_BLEND, osg::StateAttribute::OFF);
1445 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
1447 // this will be set below
1448 stateSet->setMode(GL_NORMALIZE, osg::StateAttribute::OFF);
1450 osg::Material* material = new osg::Material;
1451 stateSet->setAttribute(material);
1453 stateSet->setTextureAttribute(0, new osg::TexEnv);
1454 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
1456 osg::Hint* hint = new osg::Hint(GL_FOG_HINT, GL_DONT_CARE);
1457 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/fog"));
1458 stateSet->setAttribute(hint);
1459 hint = new osg::Hint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
1460 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/polygon-smooth"));
1461 stateSet->setAttribute(hint);
1462 hint = new osg::Hint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
1463 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/line-smooth"));
1464 stateSet->setAttribute(hint);
1465 hint = new osg::Hint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
1466 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/point-smooth"));
1467 stateSet->setAttribute(hint);
1468 hint = new osg::Hint(GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE);
1469 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/perspective-correction"));
1470 stateSet->setAttribute(hint);
1472 osg::Group* sceneGroup = new osg::Group;
1473 sceneGroup->setName("rendererScene");
1474 sceneGroup->addChild(globals->get_scenery()->get_scene_graph());
1475 sceneGroup->setNodeMask(~simgear::BACKGROUND_BIT);
1477 //sceneGroup->addChild(thesky->getCloudRoot());
1479 stateSet = sceneGroup->getOrCreateStateSet();
1480 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
1482 // need to update the light on every frame
1483 // OSG LightSource objects are rather confusing. OSG only supports
1484 // the 10 lights specified by OpenGL itself; if more than one
1485 // LightSource in the scene graph have the same light number, it's
1486 // indeterminate which values will be used to render geometry that
1487 // has that light number enabled. Also, adding children to a
1488 // LightSource is just a shortcut for setting up a state set that
1489 // has the corresponding OpenGL light enabled: a LightSource will
1490 // affect geometry anywhere in the scene graph that has its light
1491 // number enabled in a state set.
1492 LightSource* lightSource = new LightSource;
1493 lightSource->setName("FGLightSource");
1494 lightSource->getLight()->setDataVariance(Object::DYNAMIC);
1495 // relative because of CameraView being just a clever transform node
1496 lightSource->setReferenceFrame(osg::LightSource::RELATIVE_RF);
1497 lightSource->setLocalStateSetModes(osg::StateAttribute::ON);
1498 lightSource->setUpdateCallback(new FGLightSourceUpdateCallback);
1499 _viewerSceneRoot->addChild(lightSource);
1501 // we need a white diffuse light for the phase of the moon
1502 osg::LightSource* sunLight = new osg::LightSource;
1503 sunLight->setName("sunLightSource");
1504 sunLight->getLight()->setDataVariance(Object::DYNAMIC);
1505 sunLight->getLight()->setLightNum(1);
1506 sunLight->setUpdateCallback(new FGLightSourceUpdateCallback(true));
1507 sunLight->setReferenceFrame(osg::LightSource::RELATIVE_RF);
1508 sunLight->setLocalStateSetModes(osg::StateAttribute::ON);
1510 // Hang a StateSet above the sky subgraph in order to turn off
1512 Group* skyGroup = new Group;
1513 skyGroup->setName("rendererSkyParent");
1514 StateSet* skySS = skyGroup->getOrCreateStateSet();
1515 skySS->setMode(GL_LIGHT0, StateAttribute::OFF);
1516 skyGroup->addChild(_sky->getPreRoot());
1517 sunLight->addChild(skyGroup);
1519 _root->addChild(sceneGroup);
1520 if ( _classicalRenderer )
1521 _root->addChild(sunLight);
1523 // Clouds are added to the scene graph later
1524 stateSet = globals->get_scenery()->get_scene_graph()->getOrCreateStateSet();
1525 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
1526 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::ON);
1527 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
1529 // enable disable specular highlights.
1530 // is the place where we might plug in an other fragment shader ...
1531 osg::LightModel* lightModel = new osg::LightModel;
1532 lightModel->setUpdateCallback(new FGLightModelUpdateCallback);
1533 stateSet->setAttribute(lightModel);
1535 // switch to enable wireframe
1536 osg::PolygonMode* polygonMode = new osg::PolygonMode;
1537 polygonMode->setUpdateCallback(new FGWireFrameModeUpdateCallback);
1538 stateSet->setAttributeAndModes(polygonMode);
1540 // scene fog handling
1541 osg::Fog* fog = new osg::Fog;
1542 fog->setUpdateCallback(new FGFogUpdateCallback);
1543 stateSet->setAttributeAndModes(fog);
1544 stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
1547 osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
1550 osg::Geode* geode = new osg::Geode;
1551 geode->addDrawable(new SGPuDrawable);
1552 geode->addDrawable(new SGHUDDrawable);
1553 guiCamera->addChild(geode);
1556 guiCamera->addChild(FGPanelNode::create2DPanelNode());
1559 osg::Switch* sw = new osg::Switch;
1560 sw->setName("scenerySwitch");
1561 sw->setUpdateCallback(new FGScenerySwitchCallback);
1562 sw->addChild(_root.get());
1563 _viewerSceneRoot->addChild(sw);
1564 // The clouds are attached directly to the scene graph root
1565 // because, in theory, they don't want the same default state set
1566 // as the rest of the scene. This may not be true in practice.
1567 if ( _classicalRenderer ) {
1568 _viewerSceneRoot->addChild(_sky->getCloudRoot());
1569 _viewerSceneRoot->addChild(FGCreateRedoutNode());
1571 // Attach empty program to the scene root so that shader programs
1572 // don't leak into state sets (effects) that shouldn't have one.
1573 stateSet = _viewerSceneRoot->getOrCreateStateSet();
1574 stateSet->setAttributeAndModes(new osg::Program, osg::StateAttribute::ON);
1576 if ( !_classicalRenderer ) {
1577 _deferredRealRoot->addChild( _viewerSceneRoot.get() );
1581 // Update all Visuals (redraws anything graphics related)
1583 FGRenderer::update( ) {
1584 if (!_position_finalized || !_scenery_loaded->getBoolValue())
1586 _splash_alpha->setDoubleValue(1.0);
1589 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1591 if (_splash_alpha->getDoubleValue()>0.0)
1593 // Fade out the splash screen
1594 const double fade_time = 0.5;
1595 const double fade_steps_per_sec = 10;
1596 double delay_time = SGMiscd::min(fade_time/fade_steps_per_sec,
1597 (SGTimeStamp::now() - _splash_time).toSecs());
1598 _splash_time = SGTimeStamp::now();
1599 double sAlpha = _splash_alpha->getDoubleValue();
1600 sAlpha -= SGMiscd::max(0.0,delay_time/fade_time);
1601 FGScenerySwitchCallback::scenery_enabled = (sAlpha<1.0);
1602 _splash_alpha->setDoubleValue((sAlpha < 0) ? 0.0 : sAlpha);
1605 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
1606 if (!_classicalRenderer ) {
1607 _ambientFactor->set( toOsg(l->scene_ambient()) );
1608 _sunDiffuse->set( toOsg(l->scene_diffuse()) );
1609 _sunSpecular->set( toOsg(l->scene_specular()) );
1610 _sunDirection->set( osg::Vec3f(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]) );
1613 // update fog params
1614 double actual_visibility;
1615 if (_cloud_status->getBoolValue()) {
1616 actual_visibility = _sky->get_visibility();
1618 actual_visibility = _visibility_m->getDoubleValue();
1621 // idle_state is now 1000 meaning we've finished all our
1622 // initializations and are running the main loop, so this will
1623 // now work without seg faulting the system.
1625 FGViewer *current__view = globals->get_current_view();
1626 // Force update of center dependent values ...
1627 current__view->set_dirty();
1629 osg::Camera *camera = viewer->getCamera();
1631 bool skyblend = _skyblend->getBoolValue();
1634 if ( _textures->getBoolValue() ) {
1635 SGVec4f clearColor(l->adj_fog_color());
1636 camera->setClearColor(toOsg(clearColor));
1639 SGVec4f clearColor(l->sky_color());
1640 camera->setClearColor(toOsg(clearColor));
1643 // update fog params if visibility has changed
1644 double visibility_meters = _visibility_m->getDoubleValue();
1645 _sky->set_visibility(visibility_meters);
1647 double altitude_m = _altitude_ft->getDoubleValue() * SG_FEET_TO_METER;
1648 _sky->modify_vis( altitude_m, 0.0 /* time factor, now unused */);
1650 // update the sky dome
1653 // The sun and moon distances are scaled down versions
1654 // of the actual distance to get both the moon and the sun
1655 // within the range of the far clip plane.
1656 // Moon distance: 384,467 kilometers
1657 // Sun distance: 150,000,000 kilometers
1659 double sun_horiz_eff, moon_horiz_eff;
1660 if (_horizon_effect->getBoolValue()) {
1662 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_sun_angle()),
1666 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_moon_angle()),
1670 sun_horiz_eff = moon_horiz_eff = 1.0;
1674 sstate.pos = current__view->getViewPosition();
1675 sstate.pos_geod = current__view->getPosition();
1676 sstate.ori = current__view->getViewOrientation();
1677 sstate.spin = l->get_sun_rotation();
1678 sstate.gst = globals->get_time_params()->getGst();
1679 sstate.sun_dist = 50000.0 * sun_horiz_eff;
1680 sstate.moon_dist = 40000.0 * moon_horiz_eff;
1681 sstate.sun_angle = l->get_sun_angle();
1684 scolor.sky_color = SGVec3f(l->sky_color().data());
1685 scolor.adj_sky_color = SGVec3f(l->adj_sky_color().data());
1686 scolor.fog_color = SGVec3f(l->adj_fog_color().data());
1687 scolor.cloud_color = SGVec3f(l->cloud_color().data());
1688 scolor.sun_angle = l->get_sun_angle();
1689 scolor.moon_angle = l->get_moon_angle();
1691 double delta_time_sec = _sim_delta_sec->getDoubleValue();
1692 _sky->reposition( sstate, *globals->get_ephem(), delta_time_sec );
1693 _sky->repaint( scolor, *globals->get_ephem() );
1696 // shadows->setupShadows(
1697 // current__view->getLongitude_deg(),
1698 // current__view->getLatitude_deg(),
1699 // globals->get_time_params()->getGst(),
1700 // globals->get_ephem()->getSunRightAscension(),
1701 // globals->get_ephem()->getSunDeclination(),
1702 // l->get_sun_angle());
1706 // sgEnviro.setLight(l->adj_fog_color());
1707 // sgEnviro.startOfFrame(current__view->get_view_pos(),
1708 // current__view->get_world_up(),
1709 // current__view->getLongitude_deg(),
1710 // current__view->getLatitude_deg(),
1711 // current__view->getAltitudeASL_ft() * SG_FEET_TO_METER,
1715 // sgEnviro.drawLightning();
1717 // double current_view_origin_airspeed_horiz_kt =
1718 // fgGetDouble("/velocities/airspeed-kt", 0.0)
1719 // * cos( fgGetDouble("/orientation/pitch-deg", 0.0)
1720 // * SGD_DEGREES_TO_RADIANS);
1723 // if( is_internal )
1724 // shadows->endOfFrame();
1726 // need to call the update visitor once
1727 _frameStamp->setCalendarTime(*globals->get_time_params()->getGmt());
1728 _updateVisitor->setViewData(current__view->getViewPosition(),
1729 current__view->getViewOrientation());
1730 SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
1731 _updateVisitor->setLight(direction, l->scene_ambient(),
1732 l->scene_diffuse(), l->scene_specular(),
1734 l->get_sun_angle()*SGD_RADIANS_TO_DEGREES);
1735 _updateVisitor->setVisibility(actual_visibility);
1736 simgear::GroundLightManager::instance()->update(_updateVisitor.get());
1737 osg::Node::NodeMask cullMask = ~simgear::LIGHTS_BITS & ~simgear::PICK_BIT;
1738 cullMask |= simgear::GroundLightManager::instance()
1739 ->getLightNodeMask(_updateVisitor.get());
1740 if (_panel_hotspots->getBoolValue())
1741 cullMask |= simgear::PICK_BIT;
1742 CameraGroup::getDefault()->setCameraCullMasks(cullMask);
1743 if ( !_classicalRenderer ) {
1744 _fogColor->set( toOsg( l->adj_fog_color() ) );
1745 _fogDensity->set( float( _updateVisitor->getFogExp2Density() ) );
1750 FGRenderer::resize( int width, int height )
1752 int curWidth = _xsize->getIntValue(),
1753 curHeight = _ysize->getIntValue();
1754 SG_LOG(SG_VIEW, SG_DEBUG, "FGRenderer::resize: new size " << width << " x " << height);
1755 if ((curHeight != height) || (curWidth != width)) {
1756 // must guard setting these, or PLIB-PUI fails with too many live interfaces
1757 _xsize->setIntValue(width);
1758 _ysize->setIntValue(height);
1762 typedef osgUtil::LineSegmentIntersector::Intersection Intersection;
1763 SGVec2d uvFromIntersection(const Intersection& hit)
1765 // Taken from http://trac.openscenegraph.org/projects/osg/browser/OpenSceneGraph/trunk/examples/osgmovie/osgmovie.cpp
1767 osg::Drawable* drawable = hit.drawable.get();
1768 osg::Geometry* geometry = drawable ? drawable->asGeometry() : 0;
1769 osg::Vec3Array* vertices =
1770 geometry ? dynamic_cast<osg::Vec3Array*>(geometry->getVertexArray()) : 0;
1774 SG_LOG(SG_INPUT, SG_WARN, "Unable to get vertices for intersection.");
1775 return SGVec2d(-9999,-9999);
1778 // get the vertex indices.
1779 const Intersection::IndexList& indices = hit.indexList;
1780 const Intersection::RatioList& ratios = hit.ratioList;
1782 if( indices.size() != 3 || ratios.size() != 3 )
1786 "Intersection has insufficient indices to work with." );
1787 return SGVec2d(-9999,-9999);
1790 unsigned int i1 = indices[0];
1791 unsigned int i2 = indices[1];
1792 unsigned int i3 = indices[2];
1794 float r1 = ratios[0];
1795 float r2 = ratios[1];
1796 float r3 = ratios[2];
1798 osg::Array* texcoords =
1799 (geometry->getNumTexCoordArrays() > 0) ? geometry->getTexCoordArray(0) : 0;
1800 osg::Vec2Array* texcoords_Vec2Array =
1801 dynamic_cast<osg::Vec2Array*>(texcoords);
1803 if( !texcoords_Vec2Array )
1805 SG_LOG(SG_INPUT, SG_WARN, "Unable to get texcoords for intersection.");
1806 return SGVec2d(-9999,-9999);
1809 // we have tex coord array so now we can compute the final tex coord at the
1810 // point of intersection.
1811 osg::Vec2 tc1 = (*texcoords_Vec2Array)[i1];
1812 osg::Vec2 tc2 = (*texcoords_Vec2Array)[i2];
1813 osg::Vec2 tc3 = (*texcoords_Vec2Array)[i3];
1815 return toSG( osg::Vec2d(tc1 * r1 + tc2 * r2 + tc3 * r3) );
1819 FGRenderer::pick(std::vector<SGSceneryPick>& pickList, const osg::Vec2& windowPos)
1821 // wipe out the return ...
1823 typedef osgUtil::LineSegmentIntersector::Intersections Intersections;
1824 Intersections intersections;
1826 if (!computeIntersections(CameraGroup::getDefault(), windowPos, intersections))
1828 for (Intersections::iterator hit = intersections.begin(),
1829 e = intersections.end();
1832 const osg::NodePath& np = hit->nodePath;
1833 osg::NodePath::const_reverse_iterator npi;
1835 for (npi = np.rbegin(); npi != np.rend(); ++npi) {
1836 SGSceneUserData* ud = SGSceneUserData::getSceneUserData(*npi);
1837 if (!ud || (ud->getNumPickCallbacks() == 0))
1840 for (unsigned i = 0; i < ud->getNumPickCallbacks(); ++i) {
1841 SGPickCallback* pickCallback = ud->getPickCallback(i);
1844 SGSceneryPick sceneryPick;
1845 sceneryPick.info.local = toSG(hit->getLocalIntersectPoint());
1846 sceneryPick.info.wgs84 = toSG(hit->getWorldIntersectPoint());
1848 if( pickCallback->needsUV() )
1849 sceneryPick.info.uv = uvFromIntersection(*hit);
1851 sceneryPick.callback = pickCallback;
1852 pickList.push_back(sceneryPick);
1853 } // of installed pick callbacks iteration
1854 } // of reverse node path walk
1857 return !pickList.empty();
1861 FGRenderer::setViewer(osgViewer::Viewer* viewer_)
1867 FGRenderer::setEventHandler(FGEventHandler* eventHandler_)
1869 eventHandler = eventHandler_;
1873 FGRenderer::addCamera(osg::Camera* camera, bool useSceneData)
1875 _viewerSceneRoot->addChild(camera);
1879 FGRenderer::removeCamera(osg::Camera* camera)
1881 _viewerSceneRoot->removeChild(camera);
1885 FGRenderer::setPlanes( double zNear, double zFar )
1887 _planes->set( osg::Vec3f( - zFar, - zFar * zNear, zFar - zNear ) );
1891 fgDumpSceneGraphToFile(const char* filename)
1893 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1894 return osgDB::writeNodeFile(*viewer->getSceneData(), filename);
1898 fgDumpTerrainBranchToFile(const char* filename)
1900 return osgDB::writeNodeFile( *globals->get_scenery()->get_terrain_branch(),
1906 fgDumpNodeToFile(osg::Node* node, const char* filename)
1908 return osgDB::writeNodeFile(*node, filename);
1911 namespace flightgear
1913 using namespace osg;
1915 class VisibleSceneInfoVistor : public NodeVisitor, CullStack
1918 VisibleSceneInfoVistor()
1919 : NodeVisitor(CULL_VISITOR, TRAVERSE_ACTIVE_CHILDREN)
1921 setCullingMode(CullSettings::SMALL_FEATURE_CULLING
1922 | CullSettings::VIEW_FRUSTUM_CULLING);
1923 setComputeNearFarMode(CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1926 VisibleSceneInfoVistor(const VisibleSceneInfoVistor& rhs)
1930 META_NodeVisitor("flightgear","VisibleSceneInfoVistor")
1932 typedef std::map<const std::string,int> InfoMap;
1934 void getNodeInfo(Node* node)
1936 const char* typeName = typeid(*node).name();
1937 classInfo[typeName]++;
1938 const std::string& nodeName = node->getName();
1939 if (!nodeName.empty())
1940 nodeInfo[nodeName]++;
1945 using namespace std;
1946 typedef vector<InfoMap::iterator> FreqVector;
1947 cout << "class info:\n";
1949 for (InfoMap::iterator itr = classInfo.begin(), end = classInfo.end();
1952 classes.push_back(itr);
1953 sort(classes.begin(), classes.end(), freqComp);
1954 for (FreqVector::iterator itr = classes.begin(), end = classes.end();
1957 cout << (*itr)->first << " " << (*itr)->second << "\n";
1959 cout << "\nnode info:\n";
1961 for (InfoMap::iterator itr = nodeInfo.begin(), end = nodeInfo.end();
1964 nodes.push_back(itr);
1966 sort (nodes.begin(), nodes.end(), freqComp);
1967 for (FreqVector::iterator itr = nodes.begin(), end = nodes.end();
1970 cout << (*itr)->first << " " << (*itr)->second << "\n";
1975 void doTraversal(Camera* camera, Node* root, Viewport* viewport)
1977 ref_ptr<RefMatrix> projection
1978 = createOrReuseMatrix(camera->getProjectionMatrix());
1979 ref_ptr<RefMatrix> mv = createOrReuseMatrix(camera->getViewMatrix());
1981 viewport = camera->getViewport();
1983 pushViewport(viewport);
1984 pushProjectionMatrix(projection.get());
1985 pushModelViewMatrix(mv.get(), Transform::ABSOLUTE_RF);
1986 root->accept(*this);
1987 popModelViewMatrix();
1988 popProjectionMatrix();
1994 void apply(Node& node)
2003 void apply(Group& node)
2013 void apply(Transform& node)
2018 ref_ptr<RefMatrix> matrix = createOrReuseMatrix(*getModelViewMatrix());
2019 node.computeLocalToWorldMatrix(*matrix,this);
2020 pushModelViewMatrix(matrix.get(), node.getReferenceFrame());
2023 popModelViewMatrix();
2027 void apply(Camera& camera)
2029 // Save current cull settings
2030 CullSettings saved_cull_settings(*this);
2032 // set cull settings from this Camera
2033 setCullSettings(camera);
2034 // inherit the settings from above
2035 inheritCullSettings(saved_cull_settings, camera.getInheritanceMask());
2037 // set the cull mask.
2038 unsigned int savedTraversalMask = getTraversalMask();
2039 bool mustSetCullMask = (camera.getInheritanceMask()
2040 & osg::CullSettings::CULL_MASK) == 0;
2041 if (mustSetCullMask)
2042 setTraversalMask(camera.getCullMask());
2044 osg::RefMatrix* projection = 0;
2045 osg::RefMatrix* modelview = 0;
2047 if (camera.getReferenceFrame()==osg::Transform::RELATIVE_RF) {
2048 if (camera.getTransformOrder()==osg::Camera::POST_MULTIPLY) {
2049 projection = createOrReuseMatrix(*getProjectionMatrix()
2050 *camera.getProjectionMatrix());
2051 modelview = createOrReuseMatrix(*getModelViewMatrix()
2052 * camera.getViewMatrix());
2054 else { // pre multiply
2055 projection = createOrReuseMatrix(camera.getProjectionMatrix()
2056 * (*getProjectionMatrix()));
2057 modelview = createOrReuseMatrix(camera.getViewMatrix()
2058 * (*getModelViewMatrix()));
2061 // an absolute reference frame
2062 projection = createOrReuseMatrix(camera.getProjectionMatrix());
2063 modelview = createOrReuseMatrix(camera.getViewMatrix());
2065 if (camera.getViewport())
2066 pushViewport(camera.getViewport());
2068 pushProjectionMatrix(projection);
2069 pushModelViewMatrix(modelview, camera.getReferenceFrame());
2073 // restore the previous model view matrix.
2074 popModelViewMatrix();
2076 // restore the previous model view matrix.
2077 popProjectionMatrix();
2079 if (camera.getViewport()) popViewport();
2081 // restore the previous traversal mask settings
2082 if (mustSetCullMask)
2083 setTraversalMask(savedTraversalMask);
2085 // restore the previous cull settings
2086 setCullSettings(saved_cull_settings);
2091 static bool freqComp(const InfoMap::iterator& lhs, const InfoMap::iterator& rhs)
2093 return lhs->second > rhs->second;
2099 bool printVisibleSceneInfo(FGRenderer* renderer)
2101 osgViewer::Viewer* viewer = renderer->getViewer();
2102 VisibleSceneInfoVistor vsv;
2104 if (!viewer->getCamera()->getViewport() && viewer->getNumSlaves() > 0) {
2105 const View::Slave& slave = viewer->getSlave(0);
2106 vp = slave._camera->getViewport();
2108 vsv.doTraversal(viewer->getCamera(), viewer->getSceneData(), vp);
2113 // end of renderer.cxx