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/SGUpdateVisitor.hxx>
78 #include <simgear/scene/util/RenderConstants.hxx>
79 #include <simgear/scene/util/SGSceneUserData.hxx>
80 #include <simgear/scene/tgdb/GroundLightManager.hxx>
81 #include <simgear/scene/tgdb/pt_lights.hxx>
82 #include <simgear/scene/tgdb/userdata.hxx>
83 #include <simgear/structure/OSGUtils.hxx>
84 #include <simgear/props/props.hxx>
85 #include <simgear/timing/sg_time.hxx>
86 #include <simgear/ephemeris/ephemeris.hxx>
87 #include <simgear/math/sg_random.h>
89 #include <simgear/screen/jpgfactory.hxx>
92 #include <Time/light.hxx>
93 #include <Time/light.hxx>
94 #include <Cockpit/panel.hxx>
96 #include <Model/panelnode.hxx>
97 #include <Model/modelmgr.hxx>
98 #include <Model/acmodel.hxx>
99 #include <Scenery/scenery.hxx>
100 #include <Scenery/redout.hxx>
101 #include <GUI/new_gui.hxx>
102 #include <Instrumentation/HUD/HUD.hxx>
103 #include <Environment/precipitation_mgr.hxx>
104 #include <Environment/environment_mgr.hxx>
106 //#include <Main/main.hxx>
107 #include "viewer.hxx"
108 #include "viewmgr.hxx"
109 #include "splash.hxx"
110 #include "renderer.hxx"
111 #include "CameraGroup.hxx"
112 #include "FGEventHandler.hxx"
115 using namespace simgear;
116 using namespace flightgear;
118 class FGHintUpdateCallback : public osg::StateAttribute::Callback {
120 FGHintUpdateCallback(const char* configNode) :
121 mConfigNode(fgGetNode(configNode, true))
123 virtual void operator()(osg::StateAttribute* stateAttribute,
126 assert(dynamic_cast<osg::Hint*>(stateAttribute));
127 osg::Hint* hint = static_cast<osg::Hint*>(stateAttribute);
129 const char* value = mConfigNode->getStringValue();
131 hint->setMode(GL_DONT_CARE);
132 else if (0 == strcmp(value, "nicest"))
133 hint->setMode(GL_NICEST);
134 else if (0 == strcmp(value, "fastest"))
135 hint->setMode(GL_FASTEST);
137 hint->setMode(GL_DONT_CARE);
140 SGPropertyNode_ptr mConfigNode;
144 class SGPuDrawable : public osg::Drawable {
148 // Dynamic stuff, do not store geometry
149 setUseDisplayList(false);
150 setDataVariance(Object::DYNAMIC);
152 osg::StateSet* stateSet = getOrCreateStateSet();
153 stateSet->setRenderBinDetails(1001, "RenderBin");
154 // speed optimization?
155 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
156 // We can do translucent menus, so why not. :-)
157 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
158 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
159 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
161 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
163 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
164 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
166 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
167 { drawImplementation(*renderInfo.getState()); }
168 void drawImplementation(osg::State& state) const
170 state.setActiveTextureUnit(0);
171 state.setClientActiveTextureUnit(0);
173 state.disableAllVertexArrays();
175 glPushAttrib(GL_ALL_ATTRIB_BITS);
176 glPushClientAttrib(~0u);
184 virtual osg::Object* cloneType() const { return new SGPuDrawable; }
185 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGPuDrawable; }
190 class SGHUDDrawable : public osg::Drawable {
194 // Dynamic stuff, do not store geometry
195 setUseDisplayList(false);
196 setDataVariance(Object::DYNAMIC);
198 osg::StateSet* stateSet = getOrCreateStateSet();
199 stateSet->setRenderBinDetails(1000, "RenderBin");
201 // speed optimization?
202 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
203 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
204 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
205 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
206 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
208 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
210 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
211 { drawImplementation(*renderInfo.getState()); }
212 void drawImplementation(osg::State& state) const
214 state.setActiveTextureUnit(0);
215 state.setClientActiveTextureUnit(0);
216 state.disableAllVertexArrays();
218 glPushAttrib(GL_ALL_ATTRIB_BITS);
219 glPushClientAttrib(~0u);
221 HUD *hud = static_cast<HUD*>(globals->get_subsystem("hud"));
228 virtual osg::Object* cloneType() const { return new SGHUDDrawable; }
229 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGHUDDrawable; }
234 class FGLightSourceUpdateCallback : public osg::NodeCallback {
238 * @param isSun true if the light is the actual sun i.e., for
239 * illuminating the moon.
241 FGLightSourceUpdateCallback(bool isSun = false) : _isSun(isSun) {}
242 FGLightSourceUpdateCallback(const FGLightSourceUpdateCallback& nc,
244 : NodeCallback(nc, op), _isSun(nc._isSun)
246 META_Object(flightgear,FGLightSourceUpdateCallback);
248 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
250 assert(dynamic_cast<osg::LightSource*>(node));
251 osg::LightSource* lightSource = static_cast<osg::LightSource*>(node);
252 osg::Light* light = lightSource->getLight();
254 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
256 light->setAmbient(Vec4(0.0f, 0.0f, 0.0f, 0.0f));
257 light->setDiffuse(Vec4(1.0f, 1.0f, 1.0f, 1.0f));
258 light->setSpecular(Vec4(0.0f, 0.0f, 0.0f, 0.0f));
260 light->setAmbient(toOsg(l->scene_ambient()));
261 light->setDiffuse(toOsg(l->scene_diffuse()));
262 light->setSpecular(toOsg(l->scene_specular()));
264 osg::Vec4f position(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2], 0);
265 light->setPosition(position);
273 class FGWireFrameModeUpdateCallback : public osg::StateAttribute::Callback {
275 FGWireFrameModeUpdateCallback() :
276 mWireframe(fgGetNode("/sim/rendering/wireframe", true))
278 virtual void operator()(osg::StateAttribute* stateAttribute,
281 assert(dynamic_cast<osg::PolygonMode*>(stateAttribute));
282 osg::PolygonMode* polygonMode;
283 polygonMode = static_cast<osg::PolygonMode*>(stateAttribute);
285 if (mWireframe->getBoolValue())
286 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
287 osg::PolygonMode::LINE);
289 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
290 osg::PolygonMode::FILL);
293 SGPropertyNode_ptr mWireframe;
296 class FGLightModelUpdateCallback : public osg::StateAttribute::Callback {
298 FGLightModelUpdateCallback() :
299 mHighlights(fgGetNode("/sim/rendering/specular-highlight", true))
301 virtual void operator()(osg::StateAttribute* stateAttribute,
304 assert(dynamic_cast<osg::LightModel*>(stateAttribute));
305 osg::LightModel* lightModel;
306 lightModel = static_cast<osg::LightModel*>(stateAttribute);
309 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
310 lightModel->setAmbientIntensity(toOsg(l->scene_ambient());
312 lightModel->setAmbientIntensity(osg::Vec4(0, 0, 0, 1));
314 lightModel->setTwoSided(true);
315 lightModel->setLocalViewer(false);
317 if (mHighlights->getBoolValue()) {
318 lightModel->setColorControl(osg::LightModel::SEPARATE_SPECULAR_COLOR);
320 lightModel->setColorControl(osg::LightModel::SINGLE_COLOR);
324 SGPropertyNode_ptr mHighlights;
327 class FGFogEnableUpdateCallback : public osg::StateSet::Callback {
329 FGFogEnableUpdateCallback() :
330 mFogEnabled(fgGetNode("/sim/rendering/fog", true))
332 virtual void operator()(osg::StateSet* stateSet, osg::NodeVisitor*)
334 if (strcmp(mFogEnabled->getStringValue(), "disabled") == 0) {
335 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
337 stateSet->setMode(GL_FOG, osg::StateAttribute::ON);
341 SGPropertyNode_ptr mFogEnabled;
344 class FGFogUpdateCallback : public osg::StateAttribute::Callback {
346 virtual void operator () (osg::StateAttribute* sa, osg::NodeVisitor* nv)
348 assert(dynamic_cast<SGUpdateVisitor*>(nv));
349 assert(dynamic_cast<osg::Fog*>(sa));
350 SGUpdateVisitor* updateVisitor = static_cast<SGUpdateVisitor*>(nv);
351 osg::Fog* fog = static_cast<osg::Fog*>(sa);
352 fog->setMode(osg::Fog::EXP2);
353 fog->setColor(toOsg(updateVisitor->getFogColor()));
354 fog->setDensity(updateVisitor->getFogExp2Density());
358 // update callback for the switch node guarding that splash
359 class FGScenerySwitchCallback : public osg::NodeCallback {
361 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
363 assert(dynamic_cast<osg::Switch*>(node));
364 osg::Switch* sw = static_cast<osg::Switch*>(node);
366 bool enabled = scenery_enabled;
367 sw->setValue(0, enabled);
373 static bool scenery_enabled;
376 bool FGScenerySwitchCallback::scenery_enabled = false;
378 static osg::ref_ptr<osg::FrameStamp> mFrameStamp = new osg::FrameStamp;
379 static osg::ref_ptr<SGUpdateVisitor> mUpdateVisitor= new SGUpdateVisitor;
381 static osg::ref_ptr<osg::Group> mRealRoot = new osg::Group;
382 static osg::ref_ptr<osg::Group> mDeferredRealRoot = new osg::Group;
384 static osg::ref_ptr<osg::Group> mRoot = new osg::Group;
386 static osg::ref_ptr<osg::Switch> panelSwitch;
389 // update callback for the switch node controlling the 2D panel
390 class FGPanelSwitchCallback : public osg::NodeCallback {
392 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
394 assert(dynamic_cast<osg::Switch*>(node));
395 osg::Switch* sw = static_cast<osg::Switch*>(node);
397 bool enabled = fgPanelVisible();
398 sw->setValue(0, enabled);
405 #ifdef FG_JPEG_SERVER
406 static void updateRenderer()
408 globals->get_renderer()->update();
412 FGRenderer::FGRenderer() :
414 _ambientFactor( new osg::Uniform( "fg_SunAmbientColor", osg::Vec4f() ) ),
415 _sunDiffuse( new osg::Uniform( "fg_SunDiffuseColor", osg::Vec4f() ) ),
416 _sunSpecular( new osg::Uniform( "fg_SunSpecularColor", osg::Vec4f() ) ),
417 _sunDirection( new osg::Uniform( "fg_SunDirection", osg::Vec3f() ) ),
418 _planes( new osg::Uniform( "fg_Planes", osg::Vec3f() ) ),
419 _fogColor( new osg::Uniform( "fg_FogColor", osg::Vec4f(1.0, 1.0, 1.0, 1.0) ) ),
420 _fogDensity( new osg::Uniform( "fg_FogDensity", 0.0001f ) ),
421 _shadowNumber( new osg::Uniform( "fg_ShadowNumber", (int)4 ) ),
422 _shadowDistances( new osg::Uniform( "fg_ShadowDistances", osg::Vec4f(5.0, 50.0, 500.0, 5000.0 ) ) ),
423 _depthInColor( new osg::Uniform( "fg_DepthInColor", false ) )
425 #ifdef FG_JPEG_SERVER
426 jpgRenderFrame = updateRenderer;
428 eventHandler = new FGEventHandler;
431 _cascadeFar[0] = 5.f;
432 _cascadeFar[1] = 50.f;
433 _cascadeFar[2] = 500.f;
434 _cascadeFar[3] = 5000.f;
437 FGRenderer::~FGRenderer()
439 #ifdef FG_JPEG_SERVER
440 jpgRenderFrame = NULL;
445 // Initialize various GL/view parameters
446 // XXX This should be called "preinit" or something, as it initializes
447 // critical parts of the scene graph in addition to the splash screen.
449 FGRenderer::splashinit( void ) {
450 osgViewer::Viewer* viewer = getViewer();
451 mRealRoot = dynamic_cast<osg::Group*>(viewer->getSceneData());
452 ref_ptr<Node> splashNode = fgCreateSplashNode();
453 if (_classicalRenderer) {
454 mRealRoot->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());
467 mFrameStamp = viewer->getFrameStamp();
468 // Scene doesn't seem to pass the frame stamp to the update
469 // visitor automatically.
470 mUpdateVisitor->setFrameStamp(mFrameStamp.get());
471 viewer->setUpdateVisitor(mUpdateVisitor.get());
472 fgSetDouble("/sim/startup/splash-alpha", 1.0);
475 class ShadowMapSizeListener : public SGPropertyChangeListener {
477 virtual void valueChanged(SGPropertyNode* node) {
478 globals->get_renderer()->updateShadowMapSize(node->getIntValue());
482 class ShadowEnabledListener : public SGPropertyChangeListener {
484 virtual void valueChanged(SGPropertyNode* node) {
485 globals->get_renderer()->enableShadows(node->getBoolValue());
489 class ShadowNumListener : public SGPropertyChangeListener {
491 virtual void valueChanged(SGPropertyNode* node) {
492 globals->get_renderer()->updateCascadeNumber(node->getIntValue());
496 class ShadowRangeListener : public SGPropertyChangeListener {
498 virtual void valueChanged(SGPropertyNode* node) {
499 globals->get_renderer()->updateCascadeFar(node->getIndex(), node->getFloatValue());
504 FGRenderer::init( void )
506 sgUserDataInit( globals->get_props() );
508 _classicalRenderer = !fgGetBool("/sim/rendering/rembrandt/enabled", false);
509 _shadowMapSize = fgGetInt( "/sim/rendering/shadows/map-size", 4096 );
510 fgAddChangeListener( new ShadowMapSizeListener, "/sim/rendering/shadows/map-size" );
511 fgAddChangeListener( new ShadowEnabledListener, "/sim/rendering/shadows/enabled" );
512 ShadowRangeListener* srl = new ShadowRangeListener;
513 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[0]");
514 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[1]");
515 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[2]");
516 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[3]");
517 fgAddChangeListener(new ShadowNumListener, "/sim/rendering/shadows/num-cascades");
518 _numCascades = fgGetInt("/sim/rendering/shadows/num-cascades", 4);
519 _cascadeFar[0] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[0]", 5.0f);
520 _cascadeFar[1] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[1]", 50.0f);
521 _cascadeFar[2] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[2]", 500.0f);
522 _cascadeFar[3] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[3]", 5000.0f);
523 updateCascadeNumber(_numCascades);
524 updateCascadeFar(0, _cascadeFar[0]);
525 updateCascadeFar(1, _cascadeFar[1]);
526 updateCascadeFar(2, _cascadeFar[2]);
527 updateCascadeFar(3, _cascadeFar[3]);
528 _useColorForDepth = fgGetBool( "/sim/rendering/rembrandt/use-color-for-depth", false );
529 _depthInColor->set( _useColorForDepth );
531 _renderer = fgGetString("/sim/rendering/rembrandt/renderer", "");
532 if (!_classicalRenderer && !_renderer.empty())
533 _pipeline = makeRenderingPipeline(_renderer, 0);
534 _scenery_loaded = fgGetNode("/sim/sceneryloaded", true);
535 _scenery_override = fgGetNode("/sim/sceneryloaded-override", true);
536 _panel_hotspots = fgGetNode("/sim/panel-hotspots", true);
537 _virtual_cockpit = fgGetNode("/sim/virtual-cockpit", true);
539 _sim_delta_sec = fgGetNode("/sim/time/delta-sec", true);
541 _xsize = fgGetNode("/sim/startup/xsize", true);
542 _ysize = fgGetNode("/sim/startup/ysize", true);
543 _splash_alpha = fgGetNode("/sim/startup/splash-alpha", true);
545 _skyblend = fgGetNode("/sim/rendering/skyblend", true);
546 _point_sprites = fgGetNode("/sim/rendering/point-sprites", true);
547 _enhanced_lighting = fgGetNode("/sim/rendering/enhanced-lighting", true);
548 _distance_attenuation = fgGetNode("/sim/rendering/distance-attenuation", true);
549 _horizon_effect = fgGetNode("/sim/rendering/horizon-effect", true);
550 _textures = fgGetNode("/sim/rendering/textures", true);
552 _altitude_ft = fgGetNode("/position/altitude-ft", true);
554 _cloud_status = fgGetNode("/environment/clouds/status", true);
555 _visibility_m = fgGetNode("/environment/visibility-m", true);
557 bool use_point_sprites = _point_sprites->getBoolValue();
558 bool enhanced_lighting = _enhanced_lighting->getBoolValue();
559 bool distance_attenuation = _distance_attenuation->getBoolValue();
561 SGConfigureDirectionalLights( use_point_sprites, enhanced_lighting,
562 distance_attenuation );
564 if (const char* tc = fgGetString("/sim/rendering/texture-compression", NULL)) {
565 if (strcmp(tc, "false") == 0 || strcmp(tc, "off") == 0 ||
566 strcmp(tc, "0") == 0 || strcmp(tc, "no") == 0 ||
567 strcmp(tc, "none") == 0) {
568 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::DoNotUseCompression);
569 } else if (strcmp(tc, "arb") == 0) {
570 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseARBCompression);
571 } else if (strcmp(tc, "dxt1") == 0) {
572 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT1Compression);
573 } else if (strcmp(tc, "dxt3") == 0) {
574 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT3Compression);
575 } else if (strcmp(tc, "dxt5") == 0) {
576 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT5Compression);
578 SG_LOG(SG_VIEW, SG_WARN, "Unknown texture compression setting!");
582 // create sky, but can't build until setupView, since we depend
583 // on other subsystems to be inited, eg Ephemeris
586 SGPath texture_path(globals->get_fg_root());
587 texture_path.append("Textures");
588 texture_path.append("Sky");
589 for (int i = 0; i < FGEnvironmentMgr::MAX_CLOUD_LAYERS; i++) {
590 SGCloudLayer * layer = new SGCloudLayer(texture_path.str());
591 _sky->add_cloud_layer(layer);
594 _sky->texture_path( texture_path.str() );
596 if (!_classicalRenderer) {
597 eventHandler->setChangeStatsCameraRenderOrder( true );
601 void installCullVisitor(Camera* camera)
603 osgViewer::Renderer* renderer
604 = static_cast<osgViewer::Renderer*>(camera->getRenderer());
605 for (int i = 0; i < 2; ++i) {
606 osgUtil::SceneView* sceneView = renderer->getSceneView(i);
607 #if SG_OSG_VERSION_LESS_THAN(3,0,0)
608 sceneView->setCullVisitor(new simgear::EffectCullVisitor);
610 osg::ref_ptr<osgUtil::CullVisitor::Identifier> identifier;
611 identifier = sceneView->getCullVisitor()->getIdentifier();
612 sceneView->setCullVisitor(new simgear::EffectCullVisitor);
613 sceneView->getCullVisitor()->setIdentifier(identifier.get());
615 identifier = sceneView->getCullVisitorLeft()->getIdentifier();
616 sceneView->setCullVisitorLeft(sceneView->getCullVisitor()->clone());
617 sceneView->getCullVisitorLeft()->setIdentifier(identifier.get());
619 identifier = sceneView->getCullVisitorRight()->getIdentifier();
620 sceneView->setCullVisitorRight(sceneView->getCullVisitor()->clone());
621 sceneView->getCullVisitorRight()->setIdentifier(identifier.get());
627 FGRenderer::buildRenderingPipeline(CameraGroup* cgroup, unsigned flags, Camera* camera,
629 const Matrix& projection,
630 osg::GraphicsContext* gc,
631 bool useMasterSceneData)
633 CameraInfo* info = 0;
634 if (!_classicalRenderer && (flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0)
635 info = buildDeferredPipeline( cgroup, flags, camera, view, projection, gc );
640 if ((flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0)
641 _classicalRenderer = true;
642 return buildClassicalPipeline( cgroup, flags, camera, view, projection, useMasterSceneData );
647 FGRenderer::buildClassicalPipeline(CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
648 const osg::Matrix& view,
649 const osg::Matrix& projection,
650 bool useMasterSceneData)
652 CameraInfo* info = new CameraInfo(flags);
653 // The camera group will always update the camera
654 camera->setReferenceFrame(Transform::ABSOLUTE_RF);
656 Camera* farCamera = 0;
657 if ((flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0) {
658 farCamera = new Camera;
659 farCamera->setAllowEventFocus(camera->getAllowEventFocus());
660 farCamera->setGraphicsContext(camera->getGraphicsContext());
661 farCamera->setCullingMode(camera->getCullingMode());
662 farCamera->setInheritanceMask(camera->getInheritanceMask());
663 farCamera->setReferenceFrame(Transform::ABSOLUTE_RF);
664 // Each camera's viewport is written when the window is
665 // resized; if the the viewport isn't copied here, it gets updated
666 // twice and ends up with the wrong value.
667 farCamera->setViewport(simgear::clone(camera->getViewport()));
668 farCamera->setDrawBuffer(camera->getDrawBuffer());
669 farCamera->setReadBuffer(camera->getReadBuffer());
670 farCamera->setRenderTargetImplementation(
671 camera->getRenderTargetImplementation());
672 const Camera::BufferAttachmentMap& bufferMap
673 = camera->getBufferAttachmentMap();
674 if (bufferMap.count(Camera::COLOR_BUFFER) != 0) {
676 Camera::COLOR_BUFFER,
677 bufferMap.find(Camera::COLOR_BUFFER)->second._texture.get());
679 cgroup->getViewer()->addSlave(farCamera, projection, view, useMasterSceneData);
680 installCullVisitor(farCamera);
681 int farSlaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
682 info->addCamera( FAR_CAMERA, farCamera, farSlaveIndex );
683 farCamera->setRenderOrder(Camera::POST_RENDER, farSlaveIndex);
684 camera->setCullMask(camera->getCullMask() & ~simgear::BACKGROUND_BIT);
685 camera->setClearMask(GL_DEPTH_BUFFER_BIT);
687 cgroup->getViewer()->addSlave(camera, projection, view, useMasterSceneData);
688 installCullVisitor(camera);
689 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
690 info->addCamera( MAIN_CAMERA, camera, slaveIndex );
691 camera->setRenderOrder(Camera::POST_RENDER, slaveIndex);
692 cgroup->addCamera(info);
696 class FGDeferredRenderingCameraCullCallback : public osg::NodeCallback {
698 FGDeferredRenderingCameraCullCallback( const std::string& k, CameraInfo* i, bool nd = false ) : kind( k ), info( i ), needsDuDv(nd) {}
699 virtual void operator()( osg::Node *n, osg::NodeVisitor *nv) {
700 simgear::EffectCullVisitor* cv = dynamic_cast<simgear::EffectCullVisitor*>(nv);
701 osg::Camera* camera = static_cast<osg::Camera*>(n);
703 cv->clearBufferList();
704 for (RenderBufferMap::iterator ii = info->buffers.begin(); ii != info->buffers.end(); ++ii) {
705 cv->addBuffer(ii->first, ii->second.texture);
708 if ( !info->getRenderStageInfo(kind).fullscreen )
709 info->setMatrices( camera );
712 osg::Matrix projInverse;
713 info->projInverse->get( projInverse );
715 osg::Vec4 p0 = osg::Vec4( -1.0, -1.0, 0.0, 1.0 ) * projInverse;
716 info->du->set( osg::Vec4( 1.0, -1.0, 0.0, 1.0 ) * projInverse - p0 );
717 info->dv->set( osg::Vec4( -1.0, 1.0, 0.0, 1.0 ) * projInverse - p0 );
720 cv->traverse( *camera );
722 if ( kind == GEOMETRY_CAMERA ) {
723 // Save transparent bins to render later
724 osgUtil::RenderStage* renderStage = cv->getRenderStage();
725 osgUtil::RenderBin::RenderBinList& rbl = renderStage->getRenderBinList();
726 for (osgUtil::RenderBin::RenderBinList::iterator rbi = rbl.begin(); rbi != rbl.end(); ) {
727 if (rbi->second->getSortMode() == osgUtil::RenderBin::SORT_BACK_TO_FRONT) {
728 info->savedTransparentBins.insert( std::make_pair( rbi->first, rbi->second ) );
734 } else if ( kind == LIGHTING_CAMERA ) {
735 osg::ref_ptr<osg::Camera> mainShadowCamera = info->getCamera( SHADOW_CAMERA );
736 if (mainShadowCamera.valid()) {
737 osg::Switch* grp = mainShadowCamera->getChild(0)->asSwitch();
738 for (int i = 0; i < 4; ++i ) {
739 if (!grp->getValue(i))
741 osg::TexGen* shadowTexGen = info->shadowTexGen[i];
742 shadowTexGen->setMode(osg::TexGen::EYE_LINEAR);
744 osg::Camera* cascadeCam = static_cast<osg::Camera*>( grp->getChild(i) );
745 // compute the matrix which takes a vertex from view coords into tex coords
746 shadowTexGen->setPlanesFromMatrix( cascadeCam->getProjectionMatrix() *
747 osg::Matrix::translate(1.0,1.0,1.0) *
748 osg::Matrix::scale(0.5f,0.5f,0.5f) );
750 osg::RefMatrix * refMatrix = new osg::RefMatrix( cascadeCam->getInverseViewMatrix() * *cv->getModelViewMatrix() );
752 cv->getRenderStage()->getPositionalStateContainer()->addPositionedTextureAttribute( i+1, refMatrix, shadowTexGen );
755 // Render saved transparent render bins
756 osgUtil::RenderStage* renderStage = cv->getRenderStage();
757 osgUtil::RenderBin::RenderBinList& rbl = renderStage->getRenderBinList();
758 for (osgUtil::RenderBin::RenderBinList::iterator rbi = info->savedTransparentBins.begin(); rbi != info->savedTransparentBins.end(); ++rbi ){
759 rbl.insert( std::make_pair( rbi->first + 10000, rbi->second ) );
761 info->savedTransparentBins.clear();
771 osg::Texture2D* buildDeferredBuffer(GLint internalFormat, GLenum sourceFormat, GLenum sourceType, GLenum wrapMode, bool shadowComparison = false)
773 osg::Texture2D* tex = new osg::Texture2D;
774 tex->setResizeNonPowerOfTwoHint( false );
775 tex->setInternalFormat( internalFormat );
776 tex->setShadowComparison(shadowComparison);
777 if (shadowComparison) {
778 tex->setShadowTextureMode(osg::Texture2D::LUMINANCE);
779 tex->setBorderColor(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
781 tex->setSourceFormat(sourceFormat);
782 tex->setSourceType(sourceType);
783 tex->setFilter( osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR );
784 tex->setFilter( osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR );
785 tex->setWrap( osg::Texture::WRAP_S, (osg::Texture::WrapMode)wrapMode );
786 tex->setWrap( osg::Texture::WRAP_T, (osg::Texture::WrapMode)wrapMode );
790 void buildDefaultDeferredBuffers( CameraInfo* info, int shadowMapSize, bool useColorForDepth )
792 if (useColorForDepth) {
793 info->addBuffer("real-depth", buildDeferredBuffer( GL_DEPTH_COMPONENT32, GL_DEPTH_COMPONENT, GL_FLOAT, osg::Texture::CLAMP_TO_BORDER) );
794 info->addBuffer("depth", buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
797 info->addBuffer("depth", buildDeferredBuffer( GL_DEPTH_COMPONENT32, GL_DEPTH_COMPONENT, GL_FLOAT, osg::Texture::CLAMP_TO_BORDER) );
799 info->addBuffer("normal", buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
800 info->addBuffer("diffuse", buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
801 info->addBuffer("spec-emis", buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
802 info->addBuffer("lighting", buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
803 info->addBuffer("shadow", buildDeferredBuffer( GL_DEPTH_COMPONENT32, GL_DEPTH_COMPONENT, GL_FLOAT, osg::Texture::CLAMP_TO_BORDER, true), 0.0f );
804 info->getBuffer("shadow")->setTextureSize(shadowMapSize,shadowMapSize);
807 void attachBufferToCamera( CameraInfo* info, osg::Camera* camera, osg::Camera::BufferComponent c, const std::string& ck, const std::string& bk )
809 camera->attach( c, info->getBuffer(bk) );
810 info->getRenderStageInfo(ck).buffers.insert( std::make_pair( c, bk ) );
813 osg::Camera* FGRenderer::buildDefaultDeferredGeometryCamera( CameraInfo* info, osg::GraphicsContext* gc )
815 std::vector<ref_ptr<FGRenderingPipeline::Attachment> > attachments;
816 if (_useColorForDepth) {
817 attachments.push_back(new FGRenderingPipeline::Attachment(osg::Camera::DEPTH_BUFFER, "real-depth") );
818 attachments.push_back(new FGRenderingPipeline::Attachment(osg::Camera::COLOR_BUFFER3, "depth") );
820 attachments.push_back(new FGRenderingPipeline::Attachment(osg::Camera::DEPTH_BUFFER, "depth") );
822 attachments.push_back(new FGRenderingPipeline::Attachment(osg::Camera::COLOR_BUFFER0, "normal") );
823 attachments.push_back(new FGRenderingPipeline::Attachment(osg::Camera::COLOR_BUFFER1, "diffuse") );
824 attachments.push_back(new FGRenderingPipeline::Attachment(osg::Camera::COLOR_BUFFER2, "spec-emis") );
825 return buildDeferredGeometryCamera(info, gc, GEOMETRY_CAMERA, attachments);
828 void buildAttachments(CameraInfo* info, osg::Camera* camera, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments) {
829 BOOST_FOREACH(ref_ptr<FGRenderingPipeline::Attachment> attachment, attachments) {
830 if (attachment->valid())
831 attachBufferToCamera( info, camera, attachment->component, name, attachment->buffer );
835 osg::Camera* FGRenderer::buildDeferredGeometryCamera( CameraInfo* info, osg::GraphicsContext* gc, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments )
837 osg::Camera* camera = new osg::Camera;
838 info->addCamera(name, camera );
840 camera->setCullMask( ~simgear::MODELLIGHT_BIT );
841 camera->setName( "GeometryC" );
842 camera->setGraphicsContext( gc );
843 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( name, info ) );
844 camera->setClearMask( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
845 camera->setClearColor( osg::Vec4( 0., 0., 0., 0. ) );
846 camera->setClearDepth( 1.0 );
847 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
848 camera->setRenderOrder(osg::Camera::NESTED_RENDER, 0);
849 camera->setViewport( new osg::Viewport );
850 buildAttachments(info, camera, name, attachments);
851 camera->setDrawBuffer(GL_FRONT);
852 camera->setReadBuffer(GL_FRONT);
854 osg::StateSet* ss = camera->getOrCreateStateSet();
855 ss->addUniform( _depthInColor );
857 camera->addChild( mDeferredRealRoot.get() );
862 static void setShadowCascadeStateSet( osg::Camera* cam ) {
863 osg::StateSet* ss = cam->getOrCreateStateSet();
864 ss->setAttribute( new osg::PolygonOffset( 1.1f, 5.0f ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
865 ss->setMode( GL_POLYGON_OFFSET_FILL, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
866 ss->setRenderBinDetails( 0, "RenderBin", osg::StateSet::OVERRIDE_RENDERBIN_DETAILS );
867 ss->setAttributeAndModes( new osg::AlphaFunc( osg::AlphaFunc::GREATER, 0.05 ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
868 ss->setAttributeAndModes( new osg::ColorMask( false, false, false, false ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
869 ss->setAttributeAndModes( new osg::CullFace( osg::CullFace::FRONT ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
870 osg::Program* program = new osg::Program;
871 ss->setAttribute( program, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
872 ss->setMode( GL_LIGHTING, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
873 ss->setMode( GL_BLEND, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
874 //ss->setTextureMode( 0, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
875 ss->setTextureMode( 0, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
876 ss->setTextureMode( 1, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
877 ss->setTextureMode( 1, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
878 ss->setTextureMode( 2, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
879 ss->setTextureMode( 2, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
882 static osg::Camera* createShadowCascadeCamera( int no, int cascadeSize ) {
883 osg::Camera* cascadeCam = new osg::Camera;
884 setShadowCascadeStateSet( cascadeCam );
886 std::ostringstream oss;
887 oss << "CascadeCamera" << (no + 1);
888 cascadeCam->setName( oss.str() );
889 cascadeCam->setClearMask(0);
890 cascadeCam->setCullMask(~( simgear::MODELLIGHT_BIT /* | simgear::NO_SHADOW_BIT */ ) );
891 cascadeCam->setCullingMode( cascadeCam->getCullingMode() & ~osg::CullSettings::SMALL_FEATURE_CULLING );
892 cascadeCam->setAllowEventFocus(false);
893 cascadeCam->setReferenceFrame(osg::Transform::ABSOLUTE_RF_INHERIT_VIEWPOINT);
894 cascadeCam->setRenderOrder(osg::Camera::NESTED_RENDER);
895 cascadeCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
896 cascadeCam->setViewport( int( no / 2 ) * cascadeSize, (no & 1) * cascadeSize, cascadeSize, cascadeSize );
900 osg::Camera* FGRenderer::buildDefaultDeferredShadowCamera( CameraInfo* info, osg::GraphicsContext* gc )
902 std::vector<ref_ptr<FGRenderingPipeline::Attachment> > attachments;
903 attachments.push_back(new FGRenderingPipeline::Attachment(osg::Camera::DEPTH_BUFFER, "shadow") );
904 return buildDeferredShadowCamera(info, gc, SHADOW_CAMERA, attachments);
907 osg::Camera* FGRenderer::buildDeferredShadowCamera( CameraInfo* info, osg::GraphicsContext* gc, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments )
909 osg::Camera* mainShadowCamera = new osg::Camera;
910 info->addCamera(name, mainShadowCamera, 0.0f );
912 mainShadowCamera->setName( "ShadowC" );
913 mainShadowCamera->setClearMask( GL_DEPTH_BUFFER_BIT );
914 mainShadowCamera->setClearDepth( 1.0 );
915 mainShadowCamera->setAllowEventFocus(false);
916 mainShadowCamera->setGraphicsContext(gc);
917 mainShadowCamera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
918 buildAttachments(info, mainShadowCamera, name, attachments);
919 mainShadowCamera->setComputeNearFarMode(osg::Camera::DO_NOT_COMPUTE_NEAR_FAR);
920 mainShadowCamera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
921 mainShadowCamera->setProjectionMatrix(osg::Matrix::identity());
922 mainShadowCamera->setCullingMode( osg::CullSettings::NO_CULLING );
923 mainShadowCamera->setViewport( 0, 0, _shadowMapSize, _shadowMapSize );
924 mainShadowCamera->setDrawBuffer(GL_FRONT);
925 mainShadowCamera->setReadBuffer(GL_FRONT);
926 mainShadowCamera->setRenderOrder(Camera::NESTED_RENDER, 1);
928 osg::Switch* shadowSwitch = new osg::Switch;
929 mainShadowCamera->addChild( shadowSwitch );
931 for (int i = 0; i < 4; ++i ) {
932 osg::Camera* cascadeCam = createShadowCascadeCamera( i, _shadowMapSize/2 );
933 cascadeCam->addChild( mDeferredRealRoot.get() );
934 shadowSwitch->addChild( cascadeCam );
935 info->shadowTexGen[i] = new osg::TexGen;
937 if (fgGetBool("/sim/rendering/shadows/enabled", true))
938 shadowSwitch->setAllChildrenOn();
940 shadowSwitch->setAllChildrenOff();
942 return mainShadowCamera;
945 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)
947 osg::Camera* cascade = static_cast<osg::Camera*>( grp->getChild(idx) );
948 osg::Matrixd &viewMatrix = cascade->getViewMatrix();
949 osg::Matrixd &projectionMatrix = cascade->getProjectionMatrix();
951 osg::BoundingSphere bs;
952 bs.expandBy(osg::Vec3(left,bottom,-zNear) * f1);
953 bs.expandBy(osg::Vec3(right,top,-zNear) * f2);
954 bs.expandBy(osg::Vec3(left,bottom,-zNear) * f2);
955 bs.expandBy(osg::Vec3(right,top,-zNear) * f1);
957 osg::Vec4 aim = osg::Vec4(bs.center(), 1.0) * camera->getInverseViewMatrix();
959 projectionMatrix.makeOrtho( -bs.radius(), bs.radius(), -bs.radius(), bs.radius(), 1., 15000.0 );
960 osg::Vec3 position( aim.x(), aim.y(), aim.z() );
961 viewMatrix.makeLookAt( position + (getSunDirection() * 10000.0), position, position );
964 osg::Vec3 FGRenderer::getSunDirection() const
967 _sunDirection->get( val );
971 void FGRenderer::updateShadowCamera(const CameraInfo* info, const osg::Vec3d& position)
973 ref_ptr<Camera> mainShadowCamera = info->getCamera( SHADOW_CAMERA );
974 if (mainShadowCamera.valid()) {
975 ref_ptr<Switch> shadowSwitch = mainShadowCamera->getChild( 0 )->asSwitch();
976 osg::Vec3d up = position,
977 dir = getSunDirection();
980 // cos(100 deg) == -0.17
981 if (up * dir < -0.17 || !fgGetBool("/sim/rendering/shadows/enabled", true)) {
982 shadowSwitch->setAllChildrenOff();
984 double left,right,bottom,top,zNear,zFar;
985 ref_ptr<Camera> camera = info->getCamera(GEOMETRY_CAMERA);
986 camera->getProjectionMatrix().getFrustum(left,right,bottom,top,zNear,zFar);
988 shadowSwitch->setAllChildrenOn();
989 if (_numCascades == 1) {
990 osg::Camera* cascadeCam = static_cast<osg::Camera*>( shadowSwitch->getChild(0) );
991 cascadeCam->setViewport( 0, 0, _shadowMapSize, _shadowMapSize );
993 for (int no = 0; no < 4; ++no) {
994 osg::Camera* cascadeCam = static_cast<osg::Camera*>( shadowSwitch->getChild(no) );
995 cascadeCam->setViewport( int( no / 2 ) * (_shadowMapSize/2), (no & 1) * (_shadowMapSize/2), (_shadowMapSize/2), (_shadowMapSize/2) );
998 updateShadowCascade(info, camera, shadowSwitch, 0, left, right, bottom, top, zNear, 1.0, _cascadeFar[0]/zNear);
999 if (_numCascades > 1) {
1000 shadowSwitch->setValue(1, true);
1001 updateShadowCascade(info, camera, shadowSwitch, 1, left, right, bottom, top, zNear, _cascadeFar[0]/zNear, _cascadeFar[1]/zNear);
1003 shadowSwitch->setValue(1, false);
1005 if (_numCascades > 2) {
1006 shadowSwitch->setValue(2, true);
1007 updateShadowCascade(info, camera, shadowSwitch, 2, left, right, bottom, top, zNear, _cascadeFar[1]/zNear, _cascadeFar[2]/zNear);
1009 shadowSwitch->setValue(2, false);
1011 if (_numCascades > 3) {
1012 shadowSwitch->setValue(3, true);
1013 updateShadowCascade(info, camera, shadowSwitch, 3, left, right, bottom, top, zNear, _cascadeFar[2]/zNear, _cascadeFar[3]/zNear);
1015 shadowSwitch->setValue(3, false);
1018 osg::Matrixd &viewMatrix = mainShadowCamera->getViewMatrix();
1020 osg::Vec4 aim = osg::Vec4( 0.0, 0.0, 0.0, 1.0 ) * camera->getInverseViewMatrix();
1022 osg::Vec3 position( aim.x(), aim.y(), aim.z() );
1023 viewMatrix.makeLookAt( position, position + (getSunDirection() * 10000.0), position );
1029 void FGRenderer::updateShadowMapSize(int mapSize)
1031 if ( ((~( mapSize-1 )) & mapSize) != mapSize ) {
1032 SG_LOG( SG_VIEW, SG_ALERT, "Map size is not a power of two" );
1035 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
1036 ii != CameraGroup::getDefault()->camerasEnd();
1039 CameraInfo* info = ii->get();
1040 Camera* camera = info->getCamera(SHADOW_CAMERA);
1041 if (camera == 0) continue;
1043 Texture2D* tex = info->getBuffer("shadow");
1044 if (tex == 0) continue;
1046 tex->setTextureSize( mapSize, mapSize );
1047 tex->dirtyTextureObject();
1049 Viewport* vp = camera->getViewport();
1050 vp->width() = mapSize;
1051 vp->height() = mapSize;
1053 osgViewer::Renderer* renderer
1054 = static_cast<osgViewer::Renderer*>(camera->getRenderer());
1055 for (int i = 0; i < 2; ++i) {
1056 osgUtil::SceneView* sceneView = renderer->getSceneView(i);
1057 sceneView->getRenderStage()->setFrameBufferObject(0);
1058 sceneView->getRenderStage()->setCameraRequiresSetUp(true);
1059 if (sceneView->getRenderStageLeft()) {
1060 sceneView->getRenderStageLeft()->setFrameBufferObject(0);
1061 sceneView->getRenderStageLeft()->setCameraRequiresSetUp(true);
1063 if (sceneView->getRenderStageRight()) {
1064 sceneView->getRenderStageRight()->setFrameBufferObject(0);
1065 sceneView->getRenderStageRight()->setCameraRequiresSetUp(true);
1069 int cascadeSize = mapSize / 2;
1070 Group* grp = camera->getChild(0)->asGroup();
1071 for (int i = 0; i < 4; ++i ) {
1072 Camera* cascadeCam = static_cast<Camera*>( grp->getChild(i) );
1073 cascadeCam->setViewport( int( i / 2 ) * cascadeSize, (i & 1) * cascadeSize, cascadeSize, cascadeSize );
1076 _shadowMapSize = mapSize;
1080 void FGRenderer::enableShadows(bool enabled)
1082 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
1083 ii != CameraGroup::getDefault()->camerasEnd();
1086 CameraInfo* info = ii->get();
1087 Camera* camera = info->getCamera(SHADOW_CAMERA);
1088 if (camera == 0) continue;
1090 osg::Switch* shadowSwitch = camera->getChild(0)->asSwitch();
1092 shadowSwitch->setAllChildrenOn();
1094 shadowSwitch->setAllChildrenOff();
1098 void FGRenderer::updateCascadeFar(int index, float far_m)
1100 if (index < 0 || index > 3)
1102 _cascadeFar[index] = far_m;
1103 _shadowDistances->set( osg::Vec4f(_cascadeFar[0], _cascadeFar[1], _cascadeFar[2], _cascadeFar[3]) );
1106 void FGRenderer::updateCascadeNumber(size_t num)
1108 if (num < 1 || num > 4)
1111 _shadowNumber->set( (int)_numCascades );
1114 osg::Camera* FGRenderer::buildDefaultDeferredLightingCamera( CameraInfo* info, osg::GraphicsContext* gc )
1116 std::vector<ref_ptr<FGRenderingPipeline::Attachment> > attachments;
1117 if (_useColorForDepth) {
1118 attachments.push_back(new FGRenderingPipeline::Attachment(osg::Camera::DEPTH_BUFFER, "real-depth") );
1120 attachments.push_back(new FGRenderingPipeline::Attachment(osg::Camera::DEPTH_BUFFER, "depth") );
1122 attachments.push_back(new FGRenderingPipeline::Attachment(osg::Camera::COLOR_BUFFER0, "lighting") );
1123 return buildDeferredLightingCamera( info, gc, LIGHTING_CAMERA, attachments );
1126 osg::Camera* FGRenderer::buildDeferredLightingCamera( CameraInfo* info, osg::GraphicsContext* gc, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments )
1128 osg::Camera* camera = new osg::Camera;
1129 info->addCamera(name, camera );
1131 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( name, info ) );
1132 camera->setAllowEventFocus(false);
1133 camera->setGraphicsContext(gc);
1134 camera->setViewport(new Viewport);
1135 camera->setName("LightingC");
1136 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1137 camera->setRenderOrder(osg::Camera::NESTED_RENDER, 50);
1138 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
1139 camera->setViewport( new osg::Viewport );
1140 buildAttachments(info, camera, name, attachments);
1141 camera->setDrawBuffer(GL_FRONT);
1142 camera->setReadBuffer(GL_FRONT);
1143 camera->setClearColor( osg::Vec4( 0., 0., 0., 1. ) );
1144 camera->setClearMask( GL_COLOR_BUFFER_BIT );
1145 osg::StateSet* ss = camera->getOrCreateStateSet();
1146 ss->setAttribute( new osg::Depth(osg::Depth::LESS, 0.0, 1.0, false) );
1147 ss->addUniform( _depthInColor );
1149 osg::Group* lightingGroup = new osg::Group;
1151 osg::Camera* quadCam1 = new osg::Camera;
1152 quadCam1->setName( "QuadCamera1" );
1153 quadCam1->setClearMask(0);
1154 quadCam1->setAllowEventFocus(false);
1155 quadCam1->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1156 quadCam1->setRenderOrder(osg::Camera::NESTED_RENDER);
1157 quadCam1->setViewMatrix(osg::Matrix::identity());
1158 quadCam1->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1159 quadCam1->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1160 ss = quadCam1->getOrCreateStateSet();
1161 ss->addUniform( _ambientFactor );
1162 ss->addUniform( info->projInverse );
1163 ss->addUniform( info->viewInverse );
1164 ss->addUniform( info->view );
1165 ss->addUniform( _sunDiffuse );
1166 ss->addUniform( _sunSpecular );
1167 ss->addUniform( _sunDirection );
1168 ss->addUniform( _planes );
1169 ss->addUniform( _shadowNumber );
1170 ss->addUniform( _shadowDistances );
1172 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1173 g->setUseDisplayList(false);
1174 simgear::EffectGeode* eg = new simgear::EffectGeode;
1175 simgear::Effect* effect = simgear::makeEffect("Effects/ambient", true);
1177 SG_LOG(SG_VIEW, SG_ALERT, "Effects/ambient not found");
1180 eg->setEffect( effect );
1181 g->setName( "AmbientQuad" );
1182 eg->setName("AmbientQuad");
1183 eg->setCullingActive(false);
1185 quadCam1->addChild( eg );
1187 g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1188 g->setUseDisplayList(false);
1189 g->setName( "SunlightQuad" );
1190 eg = new simgear::EffectGeode;
1191 effect = simgear::makeEffect("Effects/sunlight", true);
1193 SG_LOG(SG_VIEW, SG_ALERT, "Effects/sunlight not found");
1196 eg->setEffect( effect );
1197 eg->setName("SunlightQuad");
1198 eg->setCullingActive(false);
1200 quadCam1->addChild( eg );
1202 osg::Camera* lightCam = new osg::Camera;
1203 ss = lightCam->getOrCreateStateSet();
1204 ss->addUniform( _planes );
1205 ss->addUniform( info->bufferSize );
1206 lightCam->setName( "LightCamera" );
1207 lightCam->setClearMask(0);
1208 lightCam->setAllowEventFocus(false);
1209 lightCam->setReferenceFrame(osg::Transform::RELATIVE_RF);
1210 lightCam->setRenderOrder(osg::Camera::NESTED_RENDER,1);
1211 lightCam->setViewMatrix(osg::Matrix::identity());
1212 lightCam->setProjectionMatrix(osg::Matrix::identity());
1213 lightCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1214 lightCam->setCullMask( simgear::MODELLIGHT_BIT );
1215 lightCam->setInheritanceMask( osg::CullSettings::ALL_VARIABLES & ~osg::CullSettings::CULL_MASK );
1216 lightCam->addChild( mDeferredRealRoot.get() );
1219 osg::Camera* quadCam2 = new osg::Camera;
1220 quadCam2->setName( "QuadCamera1" );
1221 quadCam2->setClearMask(0);
1222 quadCam2->setAllowEventFocus(false);
1223 quadCam2->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1224 quadCam2->setRenderOrder(osg::Camera::NESTED_RENDER,2);
1225 quadCam2->setViewMatrix(osg::Matrix::identity());
1226 quadCam2->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1227 quadCam2->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1228 ss = quadCam2->getOrCreateStateSet();
1229 ss->addUniform( _ambientFactor );
1230 ss->addUniform( info->projInverse );
1231 ss->addUniform( info->viewInverse );
1232 ss->addUniform( info->view );
1233 ss->addUniform( _sunDiffuse );
1234 ss->addUniform( _sunSpecular );
1235 ss->addUniform( _sunDirection );
1236 ss->addUniform( _fogColor );
1237 ss->addUniform( _fogDensity );
1238 ss->addUniform( _planes );
1240 g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1241 g->setUseDisplayList(false);
1242 g->setName( "FogQuad" );
1243 eg = new simgear::EffectGeode;
1244 effect = simgear::makeEffect("Effects/fog", true);
1246 SG_LOG(SG_VIEW, SG_ALERT, "Effects/fog not found");
1249 eg->setEffect( effect );
1250 eg->setName("FogQuad");
1251 eg->setCullingActive(false);
1253 quadCam2->addChild( eg );
1255 lightingGroup->addChild( _sky->getPreRoot() );
1256 lightingGroup->addChild( _sky->getCloudRoot() );
1257 lightingGroup->addChild( quadCam1 );
1258 lightingGroup->addChild( lightCam );
1259 lightingGroup->addChild( quadCam2 );
1261 camera->addChild( lightingGroup );
1267 FGRenderer::buildDeferredPipeline(CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
1268 const osg::Matrix& view,
1269 const osg::Matrix& projection,
1270 osg::GraphicsContext* gc)
1272 if (_renderer.empty() || !_pipeline.valid())
1273 return buildDefaultDeferredPipeline(cgroup, flags, camera, view, projection, gc);
1274 return buildCameraFromRenderingPipeline(_pipeline, cgroup, flags, camera, view, projection, gc);
1278 FGRenderer::buildDeferredFullscreenCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc, const FGRenderingPipeline::Stage* stage )
1280 osg::Camera* camera = new osg::Camera;
1281 info->addCamera(stage->name, camera, stage->scaleFactor, true);
1283 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback(stage->name, info, stage->needsDuDv) );
1284 camera->setAllowEventFocus(false);
1285 camera->setGraphicsContext(gc);
1286 camera->setViewport(new Viewport);
1287 camera->setName(stage->name+"C");
1288 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1289 camera->setRenderOrder(osg::Camera::NESTED_RENDER, stage->orderNum);
1290 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
1291 buildAttachments(info, camera, stage->name, stage->attachments);
1292 camera->setDrawBuffer(GL_FRONT);
1293 camera->setReadBuffer(GL_FRONT);
1294 camera->setClearColor( osg::Vec4( 1., 1., 1., 1. ) );
1295 camera->setClearMask( GL_COLOR_BUFFER_BIT );
1296 camera->setViewMatrix(osg::Matrix::identity());
1297 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1299 osg::StateSet* ss = camera->getOrCreateStateSet();
1300 ss->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1301 ss->addUniform( info->projInverse );
1302 ss->addUniform( info->viewInverse );
1303 ss->addUniform( info->view );
1304 ss->addUniform( info->bufferSize );
1305 if (stage->needsDuDv) {
1306 ss->addUniform( info->du );
1307 ss->addUniform( info->dv );
1309 ss->addUniform( _ambientFactor );
1310 ss->addUniform( _sunDiffuse );
1311 ss->addUniform( _sunSpecular );
1312 ss->addUniform( _sunDirection );
1313 ss->addUniform( _planes );
1314 ss->addUniform( _shadowNumber );
1315 ss->addUniform( _shadowDistances );
1317 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1318 g->setUseDisplayList(false);
1319 simgear::EffectGeode* eg = new simgear::EffectGeode;
1320 simgear::Effect* effect = simgear::makeEffect(stage->effect, true);
1322 eg->setEffect( effect );
1325 eg->setName(stage->name+"Quad");
1326 eg->setCullingActive(false);
1328 camera->addChild(eg);
1334 FGRenderer::buildDeferredDisplayCamera( osg::Camera* camera, flightgear::CameraInfo* info, const std::string& name, osg::GraphicsContext* gc )
1336 camera->setName( "DisplayC" );
1337 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( name, info ) );
1338 camera->setReferenceFrame(Transform::ABSOLUTE_RF);
1339 camera->setAllowEventFocus(false);
1340 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1341 g->setUseDisplayList(false); //DEBUG
1342 simgear::EffectGeode* eg = new simgear::EffectGeode;
1343 simgear::Effect* effect = simgear::makeEffect("Effects/display", true);
1345 SG_LOG(SG_VIEW, SG_ALERT, "Effects/display not found");
1348 eg->setEffect(effect);
1349 eg->setCullingActive(false);
1351 camera->setViewMatrix(osg::Matrix::identity());
1352 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1353 camera->addChild(eg);
1355 osg::StateSet* ss = camera->getOrCreateStateSet();
1356 ss->addUniform( _depthInColor );
1360 FGRenderer::buildDefaultDeferredPipeline(CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
1361 const osg::Matrix& view,
1362 const osg::Matrix& projection,
1363 osg::GraphicsContext* gc)
1365 CameraInfo* info = new CameraInfo(flags);
1366 buildDefaultDeferredBuffers(info, _shadowMapSize, _useColorForDepth);
1368 osg::Camera* geometryCamera = buildDefaultDeferredGeometryCamera( info, gc );
1369 cgroup->getViewer()->addSlave(geometryCamera, false);
1370 installCullVisitor(geometryCamera);
1371 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1372 info->getRenderStageInfo(GEOMETRY_CAMERA).slaveIndex = slaveIndex;
1374 Camera* shadowCamera = buildDefaultDeferredShadowCamera( info, gc );
1375 cgroup->getViewer()->addSlave(shadowCamera, false);
1376 installCullVisitor(shadowCamera);
1377 slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1378 info->getRenderStageInfo(SHADOW_CAMERA).slaveIndex = slaveIndex;
1380 osg::Camera* lightingCamera = buildDefaultDeferredLightingCamera( info, gc );
1381 cgroup->getViewer()->addSlave(lightingCamera, false);
1382 installCullVisitor(lightingCamera);
1383 slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1384 info->getRenderStageInfo(LIGHTING_CAMERA).slaveIndex = slaveIndex;
1386 buildDeferredDisplayCamera( camera, info, DISPLAY_CAMERA, gc );
1388 cgroup->getViewer()->addSlave(camera, false);
1389 installCullVisitor(camera);
1390 slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1391 info->addCamera( DISPLAY_CAMERA, camera, slaveIndex, true );
1392 camera->setRenderOrder(Camera::POST_RENDER, 99); //FIXME
1393 cgroup->addCamera(info);
1397 void FGRenderer::buildStage(FGRenderingPipeline* rpipe, CameraInfo* info,
1398 FGRenderingPipeline::Stage* stage,
1399 CameraGroup* cgroup,
1400 osg::Camera* mainCamera,
1401 const osg::Matrix& view,
1402 const osg::Matrix& projection,
1403 osg::GraphicsContext* gc)
1405 if (!stage->valid())
1408 ref_ptr<Camera> camera;
1409 if (stage->type == "geometry")
1410 camera = buildDeferredGeometryCamera(info, gc, stage->name, stage->attachments);
1411 else if (stage->type == "lighting")
1412 camera = buildDeferredLightingCamera(info, gc, stage->name, stage->attachments);
1413 else if (stage->type == "shadow")
1414 camera = buildDeferredShadowCamera(info, gc, stage->name, stage->attachments);
1415 else if (stage->type == "fullscreen")
1416 camera = buildDeferredFullscreenCamera(info, gc, stage);
1417 else if (stage->type == "display") {
1418 camera = mainCamera;
1419 buildDeferredDisplayCamera(camera, info, stage->name, gc);
1421 throw sg_exception("Stage type is not supported");
1423 cgroup->getViewer()->addSlave(camera, false);
1424 installCullVisitor(camera);
1425 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1426 if (stage->type == "display")
1427 info->addCamera( stage->type, camera, slaveIndex, true );
1428 info->getRenderStageInfo(stage->name).slaveIndex = slaveIndex;
1431 void FGRenderer::buildBuffers(FGRenderingPipeline* rpipe, CameraInfo* info)
1433 for (size_t i = 0; i < rpipe->buffers.size(); ++i) {
1434 osg::ref_ptr<FGRenderingPipeline::Buffer> buffer = rpipe->buffers[i];
1435 if (buffer->valid()) {
1436 bool fullscreen = buffer->width == -1 && buffer->height == -1;
1437 info->addBuffer(buffer->name, buildDeferredBuffer( buffer->internalFormat,
1438 buffer->sourceFormat,
1441 buffer->shadowComparison),
1442 fullscreen ? buffer->scaleFactor : 0.0f);
1444 info->getBuffer(buffer->name)->setTextureSize(buffer->width, buffer->height);
1450 CameraInfo* FGRenderer::buildCameraFromRenderingPipeline(FGRenderingPipeline* rpipe, CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
1451 const osg::Matrix& view, const osg::Matrix& projection, osg::GraphicsContext* gc)
1453 CameraInfo* info = new CameraInfo(flags);
1454 buildBuffers(rpipe, info);
1456 for (size_t i = 0; i < rpipe->stages.size(); ++i) {
1457 osg::ref_ptr<FGRenderingPipeline::Stage> stage = rpipe->stages[i];
1458 buildStage(rpipe, info, stage, cgroup, camera, view, projection, gc);
1461 cgroup->addCamera(info);
1467 FGRenderer::setupView( void )
1469 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1470 osg::initNotifyLevel();
1472 // The number of polygon-offset "units" to place between layers. In
1473 // principle, one is supposed to be enough. In practice, I find that
1474 // my hardware/driver requires many more.
1475 osg::PolygonOffset::setUnitsMultiplier(1);
1476 osg::PolygonOffset::setFactorMultiplier(1);
1478 // Go full screen if requested ...
1479 if ( fgGetBool("/sim/startup/fullscreen") )
1483 // The sun and moon diameters are scaled down numbers of the
1484 // actual diameters. This was needed to fit both the sun and the
1485 // moon within the distance to the far clip plane.
1486 // Moon diameter: 3,476 kilometers
1487 // Sun diameter: 1,390,000 kilometers
1488 _sky->build( 80000.0, 80000.0,
1490 *globals->get_ephem(),
1491 fgGetNode("/environment", true));
1494 ->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1496 osg::StateSet* stateSet = mRoot->getOrCreateStateSet();
1498 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
1500 stateSet->setAttribute(new osg::Depth(osg::Depth::LESS));
1501 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1503 stateSet->setAttribute(new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01));
1504 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::OFF);
1505 stateSet->setAttribute(new osg::BlendFunc);
1506 stateSet->setMode(GL_BLEND, osg::StateAttribute::OFF);
1508 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
1510 // this will be set below
1511 stateSet->setMode(GL_NORMALIZE, osg::StateAttribute::OFF);
1513 osg::Material* material = new osg::Material;
1514 stateSet->setAttribute(material);
1516 stateSet->setTextureAttribute(0, new osg::TexEnv);
1517 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
1519 osg::Hint* hint = new osg::Hint(GL_FOG_HINT, GL_DONT_CARE);
1520 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/fog"));
1521 stateSet->setAttribute(hint);
1522 hint = new osg::Hint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
1523 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/polygon-smooth"));
1524 stateSet->setAttribute(hint);
1525 hint = new osg::Hint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
1526 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/line-smooth"));
1527 stateSet->setAttribute(hint);
1528 hint = new osg::Hint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
1529 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/point-smooth"));
1530 stateSet->setAttribute(hint);
1531 hint = new osg::Hint(GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE);
1532 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/perspective-correction"));
1533 stateSet->setAttribute(hint);
1535 osg::Group* sceneGroup = new osg::Group;
1536 sceneGroup->addChild(globals->get_scenery()->get_scene_graph());
1537 sceneGroup->setNodeMask(~simgear::BACKGROUND_BIT);
1539 //sceneGroup->addChild(thesky->getCloudRoot());
1541 stateSet = sceneGroup->getOrCreateStateSet();
1542 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
1544 // need to update the light on every frame
1545 // OSG LightSource objects are rather confusing. OSG only supports
1546 // the 10 lights specified by OpenGL itself; if more than one
1547 // LightSource in the scene graph have the same light number, it's
1548 // indeterminate which values will be used to render geometry that
1549 // has that light number enabled. Also, adding children to a
1550 // LightSource is just a shortcut for setting up a state set that
1551 // has the corresponding OpenGL light enabled: a LightSource will
1552 // affect geometry anywhere in the scene graph that has its light
1553 // number enabled in a state set.
1554 LightSource* lightSource = new LightSource;
1555 lightSource->getLight()->setDataVariance(Object::DYNAMIC);
1556 // relative because of CameraView being just a clever transform node
1557 lightSource->setReferenceFrame(osg::LightSource::RELATIVE_RF);
1558 lightSource->setLocalStateSetModes(osg::StateAttribute::ON);
1559 lightSource->setUpdateCallback(new FGLightSourceUpdateCallback);
1560 mRealRoot->addChild(lightSource);
1561 // we need a white diffuse light for the phase of the moon
1562 osg::LightSource* sunLight = new osg::LightSource;
1563 sunLight->getLight()->setDataVariance(Object::DYNAMIC);
1564 sunLight->getLight()->setLightNum(1);
1565 sunLight->setUpdateCallback(new FGLightSourceUpdateCallback(true));
1566 sunLight->setReferenceFrame(osg::LightSource::RELATIVE_RF);
1567 sunLight->setLocalStateSetModes(osg::StateAttribute::ON);
1569 // Hang a StateSet above the sky subgraph in order to turn off
1571 Group* skyGroup = new Group;
1572 StateSet* skySS = skyGroup->getOrCreateStateSet();
1573 skySS->setMode(GL_LIGHT0, StateAttribute::OFF);
1574 skyGroup->addChild(_sky->getPreRoot());
1575 sunLight->addChild(skyGroup);
1576 mRoot->addChild(sceneGroup);
1577 if ( _classicalRenderer )
1578 mRoot->addChild(sunLight);
1580 // Clouds are added to the scene graph later
1581 stateSet = globals->get_scenery()->get_scene_graph()->getOrCreateStateSet();
1582 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
1583 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::ON);
1584 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
1586 // enable disable specular highlights.
1587 // is the place where we might plug in an other fragment shader ...
1588 osg::LightModel* lightModel = new osg::LightModel;
1589 lightModel->setUpdateCallback(new FGLightModelUpdateCallback);
1590 stateSet->setAttribute(lightModel);
1592 // switch to enable wireframe
1593 osg::PolygonMode* polygonMode = new osg::PolygonMode;
1594 polygonMode->setUpdateCallback(new FGWireFrameModeUpdateCallback);
1595 stateSet->setAttributeAndModes(polygonMode);
1597 // scene fog handling
1598 osg::Fog* fog = new osg::Fog;
1599 fog->setUpdateCallback(new FGFogUpdateCallback);
1600 stateSet->setAttributeAndModes(fog);
1601 stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
1604 osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
1607 osg::Geode* geode = new osg::Geode;
1608 geode->addDrawable(new SGPuDrawable);
1609 geode->addDrawable(new SGHUDDrawable);
1610 guiCamera->addChild(geode);
1612 panelSwitch = new osg::Switch;
1613 osg::StateSet* stateSet = panelSwitch->getOrCreateStateSet();
1614 stateSet->setRenderBinDetails(1000, "RenderBin");
1616 // speed optimization?
1617 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
1618 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
1619 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
1620 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
1621 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1624 panelSwitch->setUpdateCallback(new FGPanelSwitchCallback);
1627 guiCamera->addChild(panelSwitch.get());
1630 osg::Switch* sw = new osg::Switch;
1631 sw->setUpdateCallback(new FGScenerySwitchCallback);
1632 sw->addChild(mRoot.get());
1633 mRealRoot->addChild(sw);
1634 // The clouds are attached directly to the scene graph root
1635 // because, in theory, they don't want the same default state set
1636 // as the rest of the scene. This may not be true in practice.
1637 if ( _classicalRenderer ) {
1638 mRealRoot->addChild(_sky->getCloudRoot());
1639 mRealRoot->addChild(FGCreateRedoutNode());
1641 // Attach empty program to the scene root so that shader programs
1642 // don't leak into state sets (effects) that shouldn't have one.
1643 stateSet = mRealRoot->getOrCreateStateSet();
1644 stateSet->setAttributeAndModes(new osg::Program, osg::StateAttribute::ON);
1646 mDeferredRealRoot->addChild( mRealRoot.get() );
1649 void FGRenderer::panelChanged()
1655 osg::Node* n = FGPanelNode::createNode(globals->get_current_panel());
1656 if (panelSwitch->getNumChildren()) {
1657 panelSwitch->setChild(0, n);
1659 panelSwitch->addChild(n);
1663 // Update all Visuals (redraws anything graphics related)
1665 FGRenderer::update( ) {
1666 if (!(_scenery_loaded->getBoolValue() ||
1667 _scenery_override->getBoolValue()))
1669 _splash_alpha->setDoubleValue(1.0);
1672 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1674 if (_splash_alpha->getDoubleValue()>0.0)
1676 // Fade out the splash screen
1677 const double fade_time = 0.5;
1678 const double fade_steps_per_sec = 10;
1679 double delay_time = SGMiscd::min(fade_time/fade_steps_per_sec,
1680 (SGTimeStamp::now() - _splash_time).toSecs());
1681 _splash_time = SGTimeStamp::now();
1682 double sAlpha = _splash_alpha->getDoubleValue();
1683 sAlpha -= SGMiscd::max(0.0,delay_time/fade_time);
1684 FGScenerySwitchCallback::scenery_enabled = (sAlpha<1.0);
1685 _splash_alpha->setDoubleValue((sAlpha < 0) ? 0.0 : sAlpha);
1688 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
1689 if (!_classicalRenderer ) {
1690 _ambientFactor->set( toOsg(l->scene_ambient()) );
1691 _sunDiffuse->set( toOsg(l->scene_diffuse()) );
1692 _sunSpecular->set( toOsg(l->scene_specular()) );
1693 _sunDirection->set( osg::Vec3f(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]) );
1696 // update fog params
1697 double actual_visibility;
1698 if (_cloud_status->getBoolValue()) {
1699 actual_visibility = _sky->get_visibility();
1701 actual_visibility = _visibility_m->getDoubleValue();
1704 // idle_state is now 1000 meaning we've finished all our
1705 // initializations and are running the main loop, so this will
1706 // now work without seg faulting the system.
1708 FGViewer *current__view = globals->get_current_view();
1709 // Force update of center dependent values ...
1710 current__view->set_dirty();
1712 osg::Camera *camera = viewer->getCamera();
1714 bool skyblend = _skyblend->getBoolValue();
1717 if ( _textures->getBoolValue() ) {
1718 SGVec4f clearColor(l->adj_fog_color());
1719 camera->setClearColor(toOsg(clearColor));
1722 SGVec4f clearColor(l->sky_color());
1723 camera->setClearColor(toOsg(clearColor));
1726 // update fog params if visibility has changed
1727 double visibility_meters = _visibility_m->getDoubleValue();
1728 _sky->set_visibility(visibility_meters);
1730 double altitude_m = _altitude_ft->getDoubleValue() * SG_FEET_TO_METER;
1731 _sky->modify_vis( altitude_m, 0.0 /* time factor, now unused */);
1733 // update the sky dome
1736 // The sun and moon distances are scaled down versions
1737 // of the actual distance to get both the moon and the sun
1738 // within the range of the far clip plane.
1739 // Moon distance: 384,467 kilometers
1740 // Sun distance: 150,000,000 kilometers
1742 double sun_horiz_eff, moon_horiz_eff;
1743 if (_horizon_effect->getBoolValue()) {
1745 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_sun_angle()),
1749 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_moon_angle()),
1753 sun_horiz_eff = moon_horiz_eff = 1.0;
1757 sstate.pos = current__view->getViewPosition();
1758 sstate.pos_geod = current__view->getPosition();
1759 sstate.ori = current__view->getViewOrientation();
1760 sstate.spin = l->get_sun_rotation();
1761 sstate.gst = globals->get_time_params()->getGst();
1762 sstate.sun_dist = 50000.0 * sun_horiz_eff;
1763 sstate.moon_dist = 40000.0 * moon_horiz_eff;
1764 sstate.sun_angle = l->get_sun_angle();
1767 scolor.sky_color = SGVec3f(l->sky_color().data());
1768 scolor.adj_sky_color = SGVec3f(l->adj_sky_color().data());
1769 scolor.fog_color = SGVec3f(l->adj_fog_color().data());
1770 scolor.cloud_color = SGVec3f(l->cloud_color().data());
1771 scolor.sun_angle = l->get_sun_angle();
1772 scolor.moon_angle = l->get_moon_angle();
1774 double delta_time_sec = _sim_delta_sec->getDoubleValue();
1775 _sky->reposition( sstate, *globals->get_ephem(), delta_time_sec );
1776 _sky->repaint( scolor, *globals->get_ephem() );
1779 // shadows->setupShadows(
1780 // current__view->getLongitude_deg(),
1781 // current__view->getLatitude_deg(),
1782 // globals->get_time_params()->getGst(),
1783 // globals->get_ephem()->getSunRightAscension(),
1784 // globals->get_ephem()->getSunDeclination(),
1785 // l->get_sun_angle());
1789 // sgEnviro.setLight(l->adj_fog_color());
1790 // sgEnviro.startOfFrame(current__view->get_view_pos(),
1791 // current__view->get_world_up(),
1792 // current__view->getLongitude_deg(),
1793 // current__view->getLatitude_deg(),
1794 // current__view->getAltitudeASL_ft() * SG_FEET_TO_METER,
1798 // sgEnviro.drawLightning();
1800 // double current_view_origin_airspeed_horiz_kt =
1801 // fgGetDouble("/velocities/airspeed-kt", 0.0)
1802 // * cos( fgGetDouble("/orientation/pitch-deg", 0.0)
1803 // * SGD_DEGREES_TO_RADIANS);
1806 // if( is_internal )
1807 // shadows->endOfFrame();
1809 // need to call the update visitor once
1810 mFrameStamp->setCalendarTime(*globals->get_time_params()->getGmt());
1811 mUpdateVisitor->setViewData(current__view->getViewPosition(),
1812 current__view->getViewOrientation());
1813 SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
1814 mUpdateVisitor->setLight(direction, l->scene_ambient(),
1815 l->scene_diffuse(), l->scene_specular(),
1817 l->get_sun_angle()*SGD_RADIANS_TO_DEGREES);
1818 mUpdateVisitor->setVisibility(actual_visibility);
1819 simgear::GroundLightManager::instance()->update(mUpdateVisitor.get());
1820 osg::Node::NodeMask cullMask = ~simgear::LIGHTS_BITS & ~simgear::PICK_BIT;
1821 cullMask |= simgear::GroundLightManager::instance()
1822 ->getLightNodeMask(mUpdateVisitor.get());
1823 if (_panel_hotspots->getBoolValue())
1824 cullMask |= simgear::PICK_BIT;
1825 CameraGroup::getDefault()->setCameraCullMasks(cullMask);
1826 if ( !_classicalRenderer ) {
1827 _fogColor->set( toOsg( l->adj_fog_color() ) );
1828 _fogDensity->set( float( mUpdateVisitor->getFogExp2Density() ) );
1833 FGRenderer::resize( int width, int height )
1835 int curWidth = _xsize->getIntValue(),
1836 curHeight = _ysize->getIntValue();
1837 SG_LOG(SG_VIEW, SG_DEBUG, "FGRenderer::resize: new size " << width << " x " << height);
1838 if ((curHeight != height) || (curWidth != width)) {
1839 // must guard setting these, or PLIB-PUI fails with too many live interfaces
1840 _xsize->setIntValue(width);
1841 _ysize->setIntValue(height);
1846 FGRenderer::pick(std::vector<SGSceneryPick>& pickList,
1847 const osgGA::GUIEventAdapter* ea)
1849 // wipe out the return ...
1851 typedef osgUtil::LineSegmentIntersector::Intersections Intersections;
1852 Intersections intersections;
1854 if (!computeIntersections(CameraGroup::getDefault(), ea, intersections))
1856 for (Intersections::iterator hit = intersections.begin(),
1857 e = intersections.end();
1860 const osg::NodePath& np = hit->nodePath;
1861 osg::NodePath::const_reverse_iterator npi;
1862 for (npi = np.rbegin(); npi != np.rend(); ++npi) {
1863 SGSceneUserData* ud = SGSceneUserData::getSceneUserData(*npi);
1866 for (unsigned i = 0; i < ud->getNumPickCallbacks(); ++i) {
1867 SGPickCallback* pickCallback = ud->getPickCallback(i);
1870 SGSceneryPick sceneryPick;
1871 sceneryPick.info.local = toSG(hit->getLocalIntersectPoint());
1872 sceneryPick.info.wgs84 = toSG(hit->getWorldIntersectPoint());
1873 sceneryPick.callback = pickCallback;
1874 pickList.push_back(sceneryPick);
1878 return !pickList.empty();
1882 FGRenderer::setViewer(osgViewer::Viewer* viewer_)
1888 FGRenderer::setEventHandler(FGEventHandler* eventHandler_)
1890 eventHandler = eventHandler_;
1894 FGRenderer::addCamera(osg::Camera* camera, bool useSceneData)
1896 mRealRoot->addChild(camera);
1900 FGRenderer::removeCamera(osg::Camera* camera)
1902 mRealRoot->removeChild(camera);
1906 FGRenderer::setPlanes( double zNear, double zFar )
1908 _planes->set( osg::Vec3f( - zFar, - zFar * zNear, zFar - zNear ) );
1912 fgDumpSceneGraphToFile(const char* filename)
1914 return osgDB::writeNodeFile(*mRealRoot.get(), filename);
1918 fgDumpTerrainBranchToFile(const char* filename)
1920 return osgDB::writeNodeFile( *globals->get_scenery()->get_terrain_branch(),
1926 fgDumpNodeToFile(osg::Node* node, const char* filename)
1928 return osgDB::writeNodeFile(*node, filename);
1931 namespace flightgear
1933 using namespace osg;
1935 class VisibleSceneInfoVistor : public NodeVisitor, CullStack
1938 VisibleSceneInfoVistor()
1939 : NodeVisitor(CULL_VISITOR, TRAVERSE_ACTIVE_CHILDREN)
1941 setCullingMode(CullSettings::SMALL_FEATURE_CULLING
1942 | CullSettings::VIEW_FRUSTUM_CULLING);
1943 setComputeNearFarMode(CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1946 VisibleSceneInfoVistor(const VisibleSceneInfoVistor& rhs)
1950 META_NodeVisitor("flightgear","VisibleSceneInfoVistor")
1952 typedef std::map<const std::string,int> InfoMap;
1954 void getNodeInfo(Node* node)
1956 const char* typeName = typeid(*node).name();
1957 classInfo[typeName]++;
1958 const std::string& nodeName = node->getName();
1959 if (!nodeName.empty())
1960 nodeInfo[nodeName]++;
1965 using namespace std;
1966 typedef vector<InfoMap::iterator> FreqVector;
1967 cout << "class info:\n";
1969 for (InfoMap::iterator itr = classInfo.begin(), end = classInfo.end();
1972 classes.push_back(itr);
1973 sort(classes.begin(), classes.end(), freqComp);
1974 for (FreqVector::iterator itr = classes.begin(), end = classes.end();
1977 cout << (*itr)->first << " " << (*itr)->second << "\n";
1979 cout << "\nnode info:\n";
1981 for (InfoMap::iterator itr = nodeInfo.begin(), end = nodeInfo.end();
1984 nodes.push_back(itr);
1986 sort (nodes.begin(), nodes.end(), freqComp);
1987 for (FreqVector::iterator itr = nodes.begin(), end = nodes.end();
1990 cout << (*itr)->first << " " << (*itr)->second << "\n";
1995 void doTraversal(Camera* camera, Node* root, Viewport* viewport)
1997 ref_ptr<RefMatrix> projection
1998 = createOrReuseMatrix(camera->getProjectionMatrix());
1999 ref_ptr<RefMatrix> mv = createOrReuseMatrix(camera->getViewMatrix());
2001 viewport = camera->getViewport();
2003 pushViewport(viewport);
2004 pushProjectionMatrix(projection.get());
2005 pushModelViewMatrix(mv.get(), Transform::ABSOLUTE_RF);
2006 root->accept(*this);
2007 popModelViewMatrix();
2008 popProjectionMatrix();
2014 void apply(Node& node)
2023 void apply(Group& node)
2033 void apply(Transform& node)
2038 ref_ptr<RefMatrix> matrix = createOrReuseMatrix(*getModelViewMatrix());
2039 node.computeLocalToWorldMatrix(*matrix,this);
2040 pushModelViewMatrix(matrix.get(), node.getReferenceFrame());
2043 popModelViewMatrix();
2047 void apply(Camera& camera)
2049 // Save current cull settings
2050 CullSettings saved_cull_settings(*this);
2052 // set cull settings from this Camera
2053 setCullSettings(camera);
2054 // inherit the settings from above
2055 inheritCullSettings(saved_cull_settings, camera.getInheritanceMask());
2057 // set the cull mask.
2058 unsigned int savedTraversalMask = getTraversalMask();
2059 bool mustSetCullMask = (camera.getInheritanceMask()
2060 & osg::CullSettings::CULL_MASK) == 0;
2061 if (mustSetCullMask)
2062 setTraversalMask(camera.getCullMask());
2064 osg::RefMatrix* projection = 0;
2065 osg::RefMatrix* modelview = 0;
2067 if (camera.getReferenceFrame()==osg::Transform::RELATIVE_RF) {
2068 if (camera.getTransformOrder()==osg::Camera::POST_MULTIPLY) {
2069 projection = createOrReuseMatrix(*getProjectionMatrix()
2070 *camera.getProjectionMatrix());
2071 modelview = createOrReuseMatrix(*getModelViewMatrix()
2072 * camera.getViewMatrix());
2074 else { // pre multiply
2075 projection = createOrReuseMatrix(camera.getProjectionMatrix()
2076 * (*getProjectionMatrix()));
2077 modelview = createOrReuseMatrix(camera.getViewMatrix()
2078 * (*getModelViewMatrix()));
2081 // an absolute reference frame
2082 projection = createOrReuseMatrix(camera.getProjectionMatrix());
2083 modelview = createOrReuseMatrix(camera.getViewMatrix());
2085 if (camera.getViewport())
2086 pushViewport(camera.getViewport());
2088 pushProjectionMatrix(projection);
2089 pushModelViewMatrix(modelview, camera.getReferenceFrame());
2093 // restore the previous model view matrix.
2094 popModelViewMatrix();
2096 // restore the previous model view matrix.
2097 popProjectionMatrix();
2099 if (camera.getViewport()) popViewport();
2101 // restore the previous traversal mask settings
2102 if (mustSetCullMask)
2103 setTraversalMask(savedTraversalMask);
2105 // restore the previous cull settings
2106 setCullSettings(saved_cull_settings);
2111 static bool freqComp(const InfoMap::iterator& lhs, const InfoMap::iterator& rhs)
2113 return lhs->second > rhs->second;
2119 bool printVisibleSceneInfo(FGRenderer* renderer)
2121 osgViewer::Viewer* viewer = renderer->getViewer();
2122 VisibleSceneInfoVistor vsv;
2124 if (!viewer->getCamera()->getViewport() && viewer->getNumSlaves() > 0) {
2125 const View::Slave& slave = viewer->getSlave(0);
2126 vp = slave._camera->getViewport();
2128 vsv.doTraversal(viewer->getCamera(), viewer->getSceneData(), vp);
2133 // end of renderer.cxx