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 <osg/ref_ptr>
39 #include <osg/AlphaFunc>
40 #include <osg/BlendFunc>
42 #include <osg/CullFace>
43 #include <osg/CullStack>
49 #include <osg/LightModel>
50 #include <osg/LightSource>
51 #include <osg/Material>
53 #include <osg/NodeCallback>
55 #include <osg/PolygonMode>
56 #include <osg/PolygonOffset>
57 #include <osg/Program>
58 #include <osg/Version>
61 #include <osgUtil/LineSegmentIntersector>
63 #include <osg/io_utils>
64 #include <osgDB/WriteFile>
65 #include <osgViewer/Renderer>
67 #include <simgear/math/SGMath.hxx>
68 #include <simgear/scene/material/matlib.hxx>
69 #include <simgear/scene/material/EffectCullVisitor.hxx>
70 #include <simgear/scene/material/Effect.hxx>
71 #include <simgear/scene/material/EffectGeode.hxx>
72 #include <simgear/scene/model/animation.hxx>
73 #include <simgear/scene/model/placement.hxx>
74 #include <simgear/scene/sky/sky.hxx>
75 #include <simgear/scene/util/SGUpdateVisitor.hxx>
76 #include <simgear/scene/util/RenderConstants.hxx>
77 #include <simgear/scene/util/SGSceneUserData.hxx>
78 #include <simgear/scene/tgdb/GroundLightManager.hxx>
79 #include <simgear/scene/tgdb/pt_lights.hxx>
80 #include <simgear/structure/OSGUtils.hxx>
81 #include <simgear/props/props.hxx>
82 #include <simgear/timing/sg_time.hxx>
83 #include <simgear/ephemeris/ephemeris.hxx>
84 #include <simgear/math/sg_random.h>
86 #include <simgear/screen/jpgfactory.hxx>
89 #include <Time/light.hxx>
90 #include <Time/light.hxx>
91 #include <Cockpit/panel.hxx>
93 #include <Model/panelnode.hxx>
94 #include <Model/modelmgr.hxx>
95 #include <Model/acmodel.hxx>
96 #include <Scenery/scenery.hxx>
97 #include <Scenery/redout.hxx>
98 #include <GUI/new_gui.hxx>
99 #include <Instrumentation/HUD/HUD.hxx>
100 #include <Environment/precipitation_mgr.hxx>
101 #include <Environment/environment_mgr.hxx>
103 //#include <Main/main.hxx>
104 #include "viewer.hxx"
105 #include "viewmgr.hxx"
106 #include "splash.hxx"
107 #include "renderer.hxx"
108 #include "CameraGroup.hxx"
109 #include "FGEventHandler.hxx"
112 using namespace simgear;
113 using namespace flightgear;
115 class FGHintUpdateCallback : public osg::StateAttribute::Callback {
117 FGHintUpdateCallback(const char* configNode) :
118 mConfigNode(fgGetNode(configNode, true))
120 virtual void operator()(osg::StateAttribute* stateAttribute,
123 assert(dynamic_cast<osg::Hint*>(stateAttribute));
124 osg::Hint* hint = static_cast<osg::Hint*>(stateAttribute);
126 const char* value = mConfigNode->getStringValue();
128 hint->setMode(GL_DONT_CARE);
129 else if (0 == strcmp(value, "nicest"))
130 hint->setMode(GL_NICEST);
131 else if (0 == strcmp(value, "fastest"))
132 hint->setMode(GL_FASTEST);
134 hint->setMode(GL_DONT_CARE);
137 SGPropertyNode_ptr mConfigNode;
141 class SGPuDrawable : public osg::Drawable {
145 // Dynamic stuff, do not store geometry
146 setUseDisplayList(false);
147 setDataVariance(Object::DYNAMIC);
149 osg::StateSet* stateSet = getOrCreateStateSet();
150 stateSet->setRenderBinDetails(1001, "RenderBin");
151 // speed optimization?
152 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
153 // We can do translucent menus, so why not. :-)
154 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
155 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
156 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
158 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
160 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
161 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
163 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
164 { drawImplementation(*renderInfo.getState()); }
165 void drawImplementation(osg::State& state) const
167 state.setActiveTextureUnit(0);
168 state.setClientActiveTextureUnit(0);
170 state.disableAllVertexArrays();
172 glPushAttrib(GL_ALL_ATTRIB_BITS);
173 glPushClientAttrib(~0u);
181 virtual osg::Object* cloneType() const { return new SGPuDrawable; }
182 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGPuDrawable; }
187 class SGHUDDrawable : public osg::Drawable {
191 // Dynamic stuff, do not store geometry
192 setUseDisplayList(false);
193 setDataVariance(Object::DYNAMIC);
195 osg::StateSet* stateSet = getOrCreateStateSet();
196 stateSet->setRenderBinDetails(1000, "RenderBin");
198 // speed optimization?
199 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
200 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
201 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
202 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
203 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
205 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
207 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
208 { drawImplementation(*renderInfo.getState()); }
209 void drawImplementation(osg::State& state) const
211 state.setActiveTextureUnit(0);
212 state.setClientActiveTextureUnit(0);
213 state.disableAllVertexArrays();
215 glPushAttrib(GL_ALL_ATTRIB_BITS);
216 glPushClientAttrib(~0u);
218 HUD *hud = static_cast<HUD*>(globals->get_subsystem("hud"));
225 virtual osg::Object* cloneType() const { return new SGHUDDrawable; }
226 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGHUDDrawable; }
231 class FGLightSourceUpdateCallback : public osg::NodeCallback {
235 * @param isSun true if the light is the actual sun i.e., for
236 * illuminating the moon.
238 FGLightSourceUpdateCallback(bool isSun = false) : _isSun(isSun) {}
239 FGLightSourceUpdateCallback(const FGLightSourceUpdateCallback& nc,
241 : NodeCallback(nc, op), _isSun(nc._isSun)
243 META_Object(flightgear,FGLightSourceUpdateCallback);
245 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
247 assert(dynamic_cast<osg::LightSource*>(node));
248 osg::LightSource* lightSource = static_cast<osg::LightSource*>(node);
249 osg::Light* light = lightSource->getLight();
251 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
253 light->setAmbient(Vec4(0.0f, 0.0f, 0.0f, 0.0f));
254 light->setDiffuse(Vec4(1.0f, 1.0f, 1.0f, 1.0f));
255 light->setSpecular(Vec4(0.0f, 0.0f, 0.0f, 0.0f));
257 light->setAmbient(toOsg(l->scene_ambient()));
258 light->setDiffuse(toOsg(l->scene_diffuse()));
259 light->setSpecular(toOsg(l->scene_specular()));
261 osg::Vec4f position(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2], 0);
262 light->setPosition(position);
270 class FGWireFrameModeUpdateCallback : public osg::StateAttribute::Callback {
272 FGWireFrameModeUpdateCallback() :
273 mWireframe(fgGetNode("/sim/rendering/wireframe", true))
275 virtual void operator()(osg::StateAttribute* stateAttribute,
278 assert(dynamic_cast<osg::PolygonMode*>(stateAttribute));
279 osg::PolygonMode* polygonMode;
280 polygonMode = static_cast<osg::PolygonMode*>(stateAttribute);
282 if (mWireframe->getBoolValue())
283 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
284 osg::PolygonMode::LINE);
286 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
287 osg::PolygonMode::FILL);
290 SGPropertyNode_ptr mWireframe;
293 class FGLightModelUpdateCallback : public osg::StateAttribute::Callback {
295 FGLightModelUpdateCallback() :
296 mHighlights(fgGetNode("/sim/rendering/specular-highlight", true))
298 virtual void operator()(osg::StateAttribute* stateAttribute,
301 assert(dynamic_cast<osg::LightModel*>(stateAttribute));
302 osg::LightModel* lightModel;
303 lightModel = static_cast<osg::LightModel*>(stateAttribute);
306 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
307 lightModel->setAmbientIntensity(toOsg(l->scene_ambient());
309 lightModel->setAmbientIntensity(osg::Vec4(0, 0, 0, 1));
311 lightModel->setTwoSided(true);
312 lightModel->setLocalViewer(false);
314 if (mHighlights->getBoolValue()) {
315 lightModel->setColorControl(osg::LightModel::SEPARATE_SPECULAR_COLOR);
317 lightModel->setColorControl(osg::LightModel::SINGLE_COLOR);
321 SGPropertyNode_ptr mHighlights;
324 class FGFogEnableUpdateCallback : public osg::StateSet::Callback {
326 FGFogEnableUpdateCallback() :
327 mFogEnabled(fgGetNode("/sim/rendering/fog", true))
329 virtual void operator()(osg::StateSet* stateSet, osg::NodeVisitor*)
331 if (strcmp(mFogEnabled->getStringValue(), "disabled") == 0) {
332 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
334 stateSet->setMode(GL_FOG, osg::StateAttribute::ON);
338 SGPropertyNode_ptr mFogEnabled;
341 class FGFogUpdateCallback : public osg::StateAttribute::Callback {
343 virtual void operator () (osg::StateAttribute* sa, osg::NodeVisitor* nv)
345 assert(dynamic_cast<SGUpdateVisitor*>(nv));
346 assert(dynamic_cast<osg::Fog*>(sa));
347 SGUpdateVisitor* updateVisitor = static_cast<SGUpdateVisitor*>(nv);
348 osg::Fog* fog = static_cast<osg::Fog*>(sa);
349 fog->setMode(osg::Fog::EXP2);
350 fog->setColor(toOsg(updateVisitor->getFogColor()));
351 fog->setDensity(updateVisitor->getFogExp2Density());
355 // update callback for the switch node guarding that splash
356 class FGScenerySwitchCallback : public osg::NodeCallback {
358 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
360 assert(dynamic_cast<osg::Switch*>(node));
361 osg::Switch* sw = static_cast<osg::Switch*>(node);
363 bool enabled = scenery_enabled;
364 sw->setValue(0, enabled);
370 static bool scenery_enabled;
373 bool FGScenerySwitchCallback::scenery_enabled = false;
375 static osg::ref_ptr<osg::FrameStamp> mFrameStamp = new osg::FrameStamp;
376 static osg::ref_ptr<SGUpdateVisitor> mUpdateVisitor= new SGUpdateVisitor;
378 static osg::ref_ptr<osg::Group> mRealRoot = new osg::Group;
379 static osg::ref_ptr<osg::Group> mDeferredRealRoot = new osg::Group;
381 static osg::ref_ptr<osg::Group> mRoot = new osg::Group;
383 static osg::ref_ptr<osg::Switch> panelSwitch;
386 // update callback for the switch node controlling the 2D panel
387 class FGPanelSwitchCallback : public osg::NodeCallback {
389 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
391 assert(dynamic_cast<osg::Switch*>(node));
392 osg::Switch* sw = static_cast<osg::Switch*>(node);
394 bool enabled = fgPanelVisible();
395 sw->setValue(0, enabled);
402 #ifdef FG_JPEG_SERVER
403 static void updateRenderer()
405 globals->get_renderer()->update();
409 FGRenderer::FGRenderer() :
411 _ambientFactor( new osg::Uniform( "fg_SunAmbientColor", osg::Vec4f() ) ),
412 _sunDiffuse( new osg::Uniform( "fg_SunDiffuseColor", osg::Vec4f() ) ),
413 _sunSpecular( new osg::Uniform( "fg_SunSpecularColor", osg::Vec4f() ) ),
414 _sunDirection( new osg::Uniform( "fg_SunDirection", osg::Vec3f() ) ),
415 _planes( new osg::Uniform( "fg_Planes", osg::Vec3f() ) ),
416 _fogColor( new osg::Uniform( "fg_FogColor", osg::Vec4f(1.0, 1.0, 1.0, 1.0) ) ),
417 _fogDensity( new osg::Uniform( "fg_FogDensity", 0.0001f ) ),
418 _shadowNumber( new osg::Uniform( "fg_ShadowNumber", (int)4 ) ),
419 _shadowDistances( new osg::Uniform( "fg_ShadowDistances", osg::Vec4f(5.0, 50.0, 500.0, 5000.0 ) ) )
421 #ifdef FG_JPEG_SERVER
422 jpgRenderFrame = updateRenderer;
424 eventHandler = new FGEventHandler;
427 _cascadeFar[0] = 5.f;
428 _cascadeFar[1] = 50.f;
429 _cascadeFar[2] = 500.f;
430 _cascadeFar[3] = 5000.f;
433 FGRenderer::~FGRenderer()
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 ) {
446 osgViewer::Viewer* viewer = getViewer();
447 mRealRoot = dynamic_cast<osg::Group*>(viewer->getSceneData());
448 ref_ptr<Node> splashNode = fgCreateSplashNode();
449 if (_classicalRenderer) {
450 mRealRoot->addChild(splashNode.get());
452 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
453 ii != CameraGroup::getDefault()->camerasEnd();
456 CameraInfo* info = ii->get();
457 Camera* camera = info->getCamera(DISPLAY_CAMERA);
458 if (camera == 0) continue;
460 camera->addChild(splashNode.get());
463 mFrameStamp = viewer->getFrameStamp();
464 // Scene doesn't seem to pass the frame stamp to the update
465 // visitor automatically.
466 mUpdateVisitor->setFrameStamp(mFrameStamp.get());
467 viewer->setUpdateVisitor(mUpdateVisitor.get());
468 fgSetDouble("/sim/startup/splash-alpha", 1.0);
471 class ShadowMapSizeListener : public SGPropertyChangeListener {
473 virtual void valueChanged(SGPropertyNode* node) {
474 globals->get_renderer()->updateShadowMapSize(node->getIntValue());
478 class ShadowEnabledListener : public SGPropertyChangeListener {
480 virtual void valueChanged(SGPropertyNode* node) {
481 globals->get_renderer()->enableShadows(node->getBoolValue());
485 class ShadowNumListener : public SGPropertyChangeListener {
487 virtual void valueChanged(SGPropertyNode* node) {
488 globals->get_renderer()->updateCascadeNumber(node->getIntValue());
492 class ShadowRangeListener : public SGPropertyChangeListener {
494 virtual void valueChanged(SGPropertyNode* node) {
495 globals->get_renderer()->updateCascadeFar(node->getIndex(), node->getFloatValue());
500 FGRenderer::init( void )
502 _classicalRenderer = !fgGetBool("/sim/rendering/rembrandt", false);
503 _shadowMapSize = fgGetInt( "/sim/rendering/shadows/map-size", 4096 );
504 fgAddChangeListener( new ShadowMapSizeListener, "/sim/rendering/shadows/map-size" );
505 fgAddChangeListener( new ShadowEnabledListener, "/sim/rendering/shadows/enabled" );
506 ShadowRangeListener* srl = new ShadowRangeListener;
507 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[0]");
508 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[1]");
509 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[2]");
510 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[3]");
511 fgAddChangeListener(new ShadowNumListener, "/sim/rendering/shadows/num-cascades");
512 _numCascades = fgGetInt("/sim/rendering/shadows/num-cascades", 4);
513 _cascadeFar[0] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[0]", 5.0f);
514 _cascadeFar[1] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[1]", 50.0f);
515 _cascadeFar[2] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[2]", 500.0f);
516 _cascadeFar[3] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[3]", 5000.0f);
517 updateCascadeNumber(_numCascades);
518 updateCascadeFar(0, _cascadeFar[0]);
519 updateCascadeFar(1, _cascadeFar[1]);
520 updateCascadeFar(2, _cascadeFar[2]);
521 updateCascadeFar(3, _cascadeFar[3]);
523 _scenery_loaded = fgGetNode("/sim/sceneryloaded", true);
524 _scenery_override = fgGetNode("/sim/sceneryloaded-override", true);
525 _panel_hotspots = fgGetNode("/sim/panel-hotspots", true);
526 _virtual_cockpit = fgGetNode("/sim/virtual-cockpit", true);
528 _sim_delta_sec = fgGetNode("/sim/time/delta-sec", true);
530 _xsize = fgGetNode("/sim/startup/xsize", true);
531 _ysize = fgGetNode("/sim/startup/ysize", true);
532 _splash_alpha = fgGetNode("/sim/startup/splash-alpha", true);
534 _skyblend = fgGetNode("/sim/rendering/skyblend", true);
535 _point_sprites = fgGetNode("/sim/rendering/point-sprites", true);
536 _enhanced_lighting = fgGetNode("/sim/rendering/enhanced-lighting", true);
537 _distance_attenuation = fgGetNode("/sim/rendering/distance-attenuation", true);
538 _horizon_effect = fgGetNode("/sim/rendering/horizon-effect", true);
539 _textures = fgGetNode("/sim/rendering/textures", true);
541 _altitude_ft = fgGetNode("/position/altitude-ft", true);
543 _cloud_status = fgGetNode("/environment/clouds/status", true);
544 _visibility_m = fgGetNode("/environment/visibility-m", true);
546 bool use_point_sprites = _point_sprites->getBoolValue();
547 bool enhanced_lighting = _enhanced_lighting->getBoolValue();
548 bool distance_attenuation = _distance_attenuation->getBoolValue();
550 SGConfigureDirectionalLights( use_point_sprites, enhanced_lighting,
551 distance_attenuation );
553 if (const char* tc = fgGetString("/sim/rendering/texture-compression", NULL)) {
554 if (strcmp(tc, "false") == 0 || strcmp(tc, "off") == 0 ||
555 strcmp(tc, "0") == 0 || strcmp(tc, "no") == 0 ||
556 strcmp(tc, "none") == 0) {
557 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::DoNotUseCompression);
558 } else if (strcmp(tc, "arb") == 0) {
559 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseARBCompression);
560 } else if (strcmp(tc, "dxt1") == 0) {
561 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT1Compression);
562 } else if (strcmp(tc, "dxt3") == 0) {
563 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT3Compression);
564 } else if (strcmp(tc, "dxt5") == 0) {
565 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT5Compression);
567 SG_LOG(SG_VIEW, SG_WARN, "Unknown texture compression setting!");
571 // create sky, but can't build until setupView, since we depend
572 // on other subsystems to be inited, eg Ephemeris
575 SGPath texture_path(globals->get_fg_root());
576 texture_path.append("Textures");
577 texture_path.append("Sky");
578 for (int i = 0; i < FGEnvironmentMgr::MAX_CLOUD_LAYERS; i++) {
579 SGCloudLayer * layer = new SGCloudLayer(texture_path.str());
580 _sky->add_cloud_layer(layer);
583 _sky->texture_path( texture_path.str() );
585 if (!_classicalRenderer) {
586 eventHandler->setChangeStatsCameraRenderOrder( true );
590 void installCullVisitor(Camera* camera)
592 osgViewer::Renderer* renderer
593 = static_cast<osgViewer::Renderer*>(camera->getRenderer());
594 for (int i = 0; i < 2; ++i) {
595 osgUtil::SceneView* sceneView = renderer->getSceneView(i);
596 #if SG_OSG_VERSION_LESS_THAN(3,0,0)
597 sceneView->setCullVisitor(new simgear::EffectCullVisitor);
599 osg::ref_ptr<osgUtil::CullVisitor::Identifier> identifier;
600 identifier = sceneView->getCullVisitor()->getIdentifier();
601 sceneView->setCullVisitor(new simgear::EffectCullVisitor);
602 sceneView->getCullVisitor()->setIdentifier(identifier.get());
604 identifier = sceneView->getCullVisitorLeft()->getIdentifier();
605 sceneView->setCullVisitorLeft(sceneView->getCullVisitor()->clone());
606 sceneView->getCullVisitorLeft()->setIdentifier(identifier.get());
608 identifier = sceneView->getCullVisitorRight()->getIdentifier();
609 sceneView->setCullVisitorRight(sceneView->getCullVisitor()->clone());
610 sceneView->getCullVisitorRight()->setIdentifier(identifier.get());
615 flightgear::CameraInfo*
616 FGRenderer::buildRenderingPipeline(flightgear::CameraGroup* cgroup, unsigned flags, Camera* camera,
618 const Matrix& projection,
619 osg::GraphicsContext* gc,
620 bool useMasterSceneData)
622 flightgear::CameraInfo* info = 0;
623 if (!_classicalRenderer && (flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0)
624 info = buildDeferredPipeline( cgroup, flags, camera, view, projection, gc );
629 if ((flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0)
630 _classicalRenderer = true;
631 return buildClassicalPipeline( cgroup, flags, camera, view, projection, useMasterSceneData );
635 flightgear::CameraInfo*
636 FGRenderer::buildClassicalPipeline(flightgear::CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
637 const osg::Matrix& view,
638 const osg::Matrix& projection,
639 bool useMasterSceneData)
641 CameraInfo* info = new CameraInfo(flags);
642 // The camera group will always update the camera
643 camera->setReferenceFrame(Transform::ABSOLUTE_RF);
645 Camera* farCamera = 0;
646 if ((flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0) {
647 farCamera = new Camera;
648 farCamera->setAllowEventFocus(camera->getAllowEventFocus());
649 farCamera->setGraphicsContext(camera->getGraphicsContext());
650 farCamera->setCullingMode(camera->getCullingMode());
651 farCamera->setInheritanceMask(camera->getInheritanceMask());
652 farCamera->setReferenceFrame(Transform::ABSOLUTE_RF);
653 // Each camera's viewport is written when the window is
654 // resized; if the the viewport isn't copied here, it gets updated
655 // twice and ends up with the wrong value.
656 farCamera->setViewport(simgear::clone(camera->getViewport()));
657 farCamera->setDrawBuffer(camera->getDrawBuffer());
658 farCamera->setReadBuffer(camera->getReadBuffer());
659 farCamera->setRenderTargetImplementation(
660 camera->getRenderTargetImplementation());
661 const Camera::BufferAttachmentMap& bufferMap
662 = camera->getBufferAttachmentMap();
663 if (bufferMap.count(Camera::COLOR_BUFFER) != 0) {
665 Camera::COLOR_BUFFER,
666 bufferMap.find(Camera::COLOR_BUFFER)->second._texture.get());
668 cgroup->getViewer()->addSlave(farCamera, projection, view, useMasterSceneData);
669 installCullVisitor(farCamera);
670 int farSlaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
671 info->addCamera( FAR_CAMERA, farCamera, farSlaveIndex );
672 farCamera->setRenderOrder(Camera::POST_RENDER, farSlaveIndex);
673 camera->setCullMask(camera->getCullMask() & ~simgear::BACKGROUND_BIT);
674 camera->setClearMask(GL_DEPTH_BUFFER_BIT);
676 cgroup->getViewer()->addSlave(camera, projection, view, useMasterSceneData);
677 installCullVisitor(camera);
678 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
679 info->addCamera( MAIN_CAMERA, camera, slaveIndex );
680 camera->setRenderOrder(Camera::POST_RENDER, slaveIndex);
681 cgroup->addCamera(info);
685 class FGDeferredRenderingCameraCullCallback : public osg::NodeCallback {
687 FGDeferredRenderingCameraCullCallback( flightgear::CameraKind k, CameraInfo* i ) : kind( k ), info( i ) {}
688 virtual void operator()( osg::Node *n, osg::NodeVisitor *nv) {
689 simgear::EffectCullVisitor* cv = dynamic_cast<simgear::EffectCullVisitor*>(nv);
690 osg::Camera* camera = static_cast<osg::Camera*>(n);
692 cv->clearBufferList();
693 cv->addBuffer(simgear::Effect::DEPTH_BUFFER, info->getBuffer( flightgear::RenderBufferInfo::DEPTH_BUFFER ) );
694 cv->addBuffer(simgear::Effect::NORMAL_BUFFER, info->getBuffer( flightgear::RenderBufferInfo::NORMAL_BUFFER ) );
695 cv->addBuffer(simgear::Effect::DIFFUSE_BUFFER, info->getBuffer( flightgear::RenderBufferInfo::DIFFUSE_BUFFER ) );
696 cv->addBuffer(simgear::Effect::SPEC_EMIS_BUFFER, info->getBuffer( flightgear::RenderBufferInfo::SPEC_EMIS_BUFFER ) );
697 cv->addBuffer(simgear::Effect::LIGHTING_BUFFER, info->getBuffer( flightgear::RenderBufferInfo::LIGHTING_BUFFER ) );
698 cv->addBuffer(simgear::Effect::SHADOW_BUFFER, info->getBuffer( flightgear::RenderBufferInfo::SHADOW_BUFFER ) );
699 // cv->addBuffer(simgear::Effect::AO_BUFFER, info->gBuffer->aoBuffer[2]);
701 if ( !info->getRenderStageInfo(kind).fullscreen )
702 info->setMatrices( camera );
704 cv->traverse( *camera );
706 if ( kind == flightgear::GEOMETRY_CAMERA ) {
707 // Save transparent bins to render later
708 osgUtil::RenderStage* renderStage = cv->getRenderStage();
709 osgUtil::RenderBin::RenderBinList& rbl = renderStage->getRenderBinList();
710 for (osgUtil::RenderBin::RenderBinList::iterator rbi = rbl.begin(); rbi != rbl.end(); ) {
711 if (rbi->second->getSortMode() == osgUtil::RenderBin::SORT_BACK_TO_FRONT) {
712 info->savedTransparentBins.insert( std::make_pair( rbi->first, rbi->second ) );
718 } else if ( kind == flightgear::LIGHTING_CAMERA ) {
719 osg::ref_ptr<osg::Camera> mainShadowCamera = info->getCamera( SHADOW_CAMERA );
720 if (mainShadowCamera.valid()) {
721 osg::Switch* grp = mainShadowCamera->getChild(0)->asSwitch();
722 for (int i = 0; i < 4; ++i ) {
723 if (!grp->getValue(i))
725 osg::TexGen* shadowTexGen = info->shadowTexGen[i];
726 shadowTexGen->setMode(osg::TexGen::EYE_LINEAR);
728 osg::Camera* cascadeCam = static_cast<osg::Camera*>( grp->getChild(i) );
729 // compute the matrix which takes a vertex from view coords into tex coords
730 shadowTexGen->setPlanesFromMatrix( cascadeCam->getProjectionMatrix() *
731 osg::Matrix::translate(1.0,1.0,1.0) *
732 osg::Matrix::scale(0.5f,0.5f,0.5f) );
734 osg::RefMatrix * refMatrix = new osg::RefMatrix( cascadeCam->getInverseViewMatrix() * *cv->getModelViewMatrix() );
736 cv->getRenderStage()->getPositionalStateContainer()->addPositionedTextureAttribute( i+1, refMatrix, shadowTexGen );
739 // Render saved transparent render bins
740 osgUtil::RenderStage* renderStage = cv->getRenderStage();
741 osgUtil::RenderBin::RenderBinList& rbl = renderStage->getRenderBinList();
742 for (osgUtil::RenderBin::RenderBinList::iterator rbi = info->savedTransparentBins.begin(); rbi != info->savedTransparentBins.end(); ++rbi ){
743 rbl.insert( std::make_pair( rbi->first + 10000, rbi->second ) );
745 info->savedTransparentBins.clear();
750 flightgear::CameraKind kind;
754 osg::Texture2D* buildDeferredBuffer(GLint internalFormat, GLenum sourceFormat, GLenum sourceType, osg::Texture::WrapMode wrapMode, bool shadowComparison = false)
756 osg::Texture2D* tex = new osg::Texture2D;
757 tex->setResizeNonPowerOfTwoHint( false );
758 tex->setInternalFormat( internalFormat );
759 tex->setShadowComparison(shadowComparison);
760 if (shadowComparison) {
761 tex->setShadowTextureMode(osg::Texture2D::LUMINANCE);
762 tex->setBorderColor(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
764 tex->setSourceFormat(sourceFormat);
765 tex->setSourceType(sourceType);
766 tex->setFilter( osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR );
767 tex->setFilter( osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR );
768 tex->setWrap( osg::Texture::WRAP_S, wrapMode );
769 tex->setWrap( osg::Texture::WRAP_T, wrapMode );
773 void buildDeferredBuffers( flightgear::CameraInfo* info, int shadowMapSize, bool normal16 )
775 info->addBuffer(flightgear::RenderBufferInfo::DEPTH_BUFFER, buildDeferredBuffer( GL_DEPTH_COMPONENT32, GL_DEPTH_COMPONENT, GL_FLOAT, osg::Texture::CLAMP_TO_BORDER) );
777 info->addBuffer(flightgear::RenderBufferInfo::NORMAL_BUFFER, buildDeferredBuffer( 0x822C /*GL_RG16*/, 0x8227 /*GL_RG*/, GL_UNSIGNED_SHORT, osg::Texture::CLAMP_TO_BORDER) );
779 info->addBuffer(flightgear::RenderBufferInfo::NORMAL_BUFFER, buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
781 info->addBuffer(flightgear::RenderBufferInfo::DIFFUSE_BUFFER, buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
782 info->addBuffer(flightgear::RenderBufferInfo::SPEC_EMIS_BUFFER, buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
783 info->addBuffer(flightgear::RenderBufferInfo::LIGHTING_BUFFER, buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
784 info->addBuffer(flightgear::RenderBufferInfo::SHADOW_BUFFER, buildDeferredBuffer( GL_DEPTH_COMPONENT32, GL_DEPTH_COMPONENT, GL_FLOAT, osg::Texture::CLAMP_TO_BORDER, true), 0.0f );
785 info->getBuffer(RenderBufferInfo::SHADOW_BUFFER)->setTextureSize(shadowMapSize,shadowMapSize);
788 void attachBufferToCamera( flightgear::CameraInfo* info, osg::Camera* camera, osg::Camera::BufferComponent c, flightgear::CameraKind ck, flightgear::RenderBufferInfo::Kind bk )
790 camera->attach( c, info->getBuffer(bk) );
791 info->getRenderStageInfo(ck).buffers.insert( std::make_pair( c, bk ) );
794 osg::Camera* FGRenderer::buildDeferredGeometryCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc )
796 osg::Camera* camera = new osg::Camera;
797 info->addCamera(flightgear::GEOMETRY_CAMERA, camera );
799 camera->setCullMask( ~simgear::MODELLIGHT_BIT );
800 camera->setName( "GeometryC" );
801 camera->setGraphicsContext( gc );
802 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( flightgear::GEOMETRY_CAMERA, info ) );
803 camera->setClearMask( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
804 camera->setClearColor( osg::Vec4( 0., 0., 0., 0. ) );
805 camera->setClearDepth( 1.0 );
806 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
807 camera->setViewport( new osg::Viewport );
808 attachBufferToCamera( info, camera, osg::Camera::DEPTH_BUFFER, flightgear::GEOMETRY_CAMERA, flightgear::RenderBufferInfo::DEPTH_BUFFER );
809 attachBufferToCamera( info, camera, osg::Camera::COLOR_BUFFER0, flightgear::GEOMETRY_CAMERA, flightgear::RenderBufferInfo::NORMAL_BUFFER );
810 attachBufferToCamera( info, camera, osg::Camera::COLOR_BUFFER1, flightgear::GEOMETRY_CAMERA, flightgear::RenderBufferInfo::DIFFUSE_BUFFER );
811 attachBufferToCamera( info, camera, osg::Camera::COLOR_BUFFER2, flightgear::GEOMETRY_CAMERA, flightgear::RenderBufferInfo::SPEC_EMIS_BUFFER );
812 camera->setDrawBuffer(GL_FRONT);
813 camera->setReadBuffer(GL_FRONT);
815 camera->addChild( mDeferredRealRoot.get() );
820 static void setShadowCascadeStateSet( osg::Camera* cam ) {
821 osg::StateSet* ss = cam->getOrCreateStateSet();
822 ss->setAttribute( new osg::PolygonOffset( 1.1f, 5.0f ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
823 ss->setMode( GL_POLYGON_OFFSET_FILL, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
824 ss->setRenderBinDetails( 0, "RenderBin", osg::StateSet::OVERRIDE_RENDERBIN_DETAILS );
825 ss->setAttributeAndModes( new osg::AlphaFunc( osg::AlphaFunc::GREATER, 0.05 ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
826 ss->setAttributeAndModes( new osg::ColorMask( false, false, false, false ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
827 ss->setAttributeAndModes( new osg::CullFace( osg::CullFace::FRONT ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
828 osg::Program* program = new osg::Program;
829 ss->setAttribute( program, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
830 ss->setMode( GL_LIGHTING, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
831 ss->setMode( GL_BLEND, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
832 //ss->setTextureMode( 0, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
833 ss->setTextureMode( 0, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
834 ss->setTextureMode( 1, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
835 ss->setTextureMode( 1, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
836 ss->setTextureMode( 2, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
837 ss->setTextureMode( 2, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
840 static osg::Camera* createShadowCascadeCamera( int no, int cascadeSize ) {
841 osg::Camera* cascadeCam = new osg::Camera;
842 setShadowCascadeStateSet( cascadeCam );
844 std::ostringstream oss;
845 oss << "CascadeCamera" << (no + 1);
846 cascadeCam->setName( oss.str() );
847 cascadeCam->setClearMask(0);
848 cascadeCam->setCullMask(~( simgear::MODELLIGHT_BIT /* | simgear::NO_SHADOW_BIT */ ) );
849 cascadeCam->setCullingMode( cascadeCam->getCullingMode() & ~osg::CullSettings::SMALL_FEATURE_CULLING );
850 cascadeCam->setAllowEventFocus(false);
851 cascadeCam->setReferenceFrame(osg::Transform::ABSOLUTE_RF_INHERIT_VIEWPOINT);
852 cascadeCam->setRenderOrder(osg::Camera::NESTED_RENDER);
853 cascadeCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
854 cascadeCam->setViewport( int( no / 2 ) * cascadeSize, (no & 1) * cascadeSize, cascadeSize, cascadeSize );
858 osg::Camera* FGRenderer::buildDeferredShadowCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc )
860 osg::Camera* mainShadowCamera = new osg::Camera;
861 info->addCamera(flightgear::SHADOW_CAMERA, mainShadowCamera, 0.0f );
863 mainShadowCamera->setName( "ShadowC" );
864 mainShadowCamera->setClearMask( GL_DEPTH_BUFFER_BIT );
865 mainShadowCamera->setClearDepth( 1.0 );
866 mainShadowCamera->setAllowEventFocus(false);
867 mainShadowCamera->setGraphicsContext(gc);
868 mainShadowCamera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
869 attachBufferToCamera( info, mainShadowCamera, osg::Camera::DEPTH_BUFFER, flightgear::SHADOW_CAMERA, flightgear::RenderBufferInfo::SHADOW_BUFFER );
870 mainShadowCamera->setComputeNearFarMode(osg::Camera::DO_NOT_COMPUTE_NEAR_FAR);
871 mainShadowCamera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
872 mainShadowCamera->setProjectionMatrix(osg::Matrix::identity());
873 mainShadowCamera->setCullingMode( osg::CullSettings::NO_CULLING );
874 mainShadowCamera->setViewport( 0, 0, _shadowMapSize, _shadowMapSize );
875 mainShadowCamera->setDrawBuffer(GL_FRONT);
876 mainShadowCamera->setReadBuffer(GL_FRONT);
878 osg::Switch* shadowSwitch = new osg::Switch;
879 mainShadowCamera->addChild( shadowSwitch );
881 for (int i = 0; i < 4; ++i ) {
882 osg::Camera* cascadeCam = createShadowCascadeCamera( i, _shadowMapSize/2 );
883 cascadeCam->addChild( mDeferredRealRoot.get() );
884 shadowSwitch->addChild( cascadeCam );
885 info->shadowTexGen[i] = new osg::TexGen;
887 if (fgGetBool("/sim/rendering/shadows/enabled", true))
888 shadowSwitch->setAllChildrenOn();
890 shadowSwitch->setAllChildrenOff();
892 return mainShadowCamera;
895 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)
897 osg::Camera* cascade = static_cast<osg::Camera*>( grp->getChild(idx) );
898 osg::Matrixd &viewMatrix = cascade->getViewMatrix();
899 osg::Matrixd &projectionMatrix = cascade->getProjectionMatrix();
901 osg::BoundingSphere bs;
902 bs.expandBy(osg::Vec3(left,bottom,-zNear) * f1);
903 bs.expandBy(osg::Vec3(right,top,-zNear) * f2);
904 bs.expandBy(osg::Vec3(left,bottom,-zNear) * f2);
905 bs.expandBy(osg::Vec3(right,top,-zNear) * f1);
907 osg::Vec4 aim = osg::Vec4(bs.center(), 1.0) * camera->getInverseViewMatrix();
909 projectionMatrix.makeOrtho( -bs.radius(), bs.radius(), -bs.radius(), bs.radius(), 1., 15000.0 );
910 osg::Vec3 position( aim.x(), aim.y(), aim.z() );
911 viewMatrix.makeLookAt( position + (getSunDirection() * 10000.0), position, position );
914 osg::Vec3 FGRenderer::getSunDirection() const
917 _sunDirection->get( val );
921 void FGRenderer::updateShadowCamera(const flightgear::CameraInfo* info, const osg::Vec3d& position)
923 ref_ptr<Camera> mainShadowCamera = info->getCamera( SHADOW_CAMERA );
924 if (mainShadowCamera.valid()) {
925 ref_ptr<Switch> shadowSwitch = mainShadowCamera->getChild( 0 )->asSwitch();
926 osg::Vec3d up = position,
927 dir = getSunDirection();
930 // cos(100 deg) == -0.17
931 if (up * dir < -0.17 || !fgGetBool("/sim/rendering/shadows/enabled", true)) {
932 shadowSwitch->setAllChildrenOff();
934 double left,right,bottom,top,zNear,zFar;
935 ref_ptr<Camera> camera = info->getCamera(GEOMETRY_CAMERA);
936 camera->getProjectionMatrix().getFrustum(left,right,bottom,top,zNear,zFar);
938 shadowSwitch->setAllChildrenOn();
939 if (_numCascades == 1) {
940 osg::Camera* cascadeCam = static_cast<osg::Camera*>( shadowSwitch->getChild(0) );
941 cascadeCam->setViewport( 0, 0, _shadowMapSize, _shadowMapSize );
943 for (int no = 0; no < 4; ++no) {
944 osg::Camera* cascadeCam = static_cast<osg::Camera*>( shadowSwitch->getChild(no) );
945 cascadeCam->setViewport( int( no / 2 ) * (_shadowMapSize/2), (no & 1) * (_shadowMapSize/2), (_shadowMapSize/2), (_shadowMapSize/2) );
948 updateShadowCascade(info, camera, shadowSwitch, 0, left, right, bottom, top, zNear, 1.0, _cascadeFar[0]/zNear);
949 if (_numCascades > 1) {
950 shadowSwitch->setValue(1, true);
951 updateShadowCascade(info, camera, shadowSwitch, 1, left, right, bottom, top, zNear, _cascadeFar[0]/zNear, _cascadeFar[1]/zNear);
953 shadowSwitch->setValue(1, false);
955 if (_numCascades > 2) {
956 shadowSwitch->setValue(2, true);
957 updateShadowCascade(info, camera, shadowSwitch, 2, left, right, bottom, top, zNear, _cascadeFar[1]/zNear, _cascadeFar[2]/zNear);
959 shadowSwitch->setValue(2, false);
961 if (_numCascades > 3) {
962 shadowSwitch->setValue(3, true);
963 updateShadowCascade(info, camera, shadowSwitch, 3, left, right, bottom, top, zNear, _cascadeFar[2]/zNear, _cascadeFar[3]/zNear);
965 shadowSwitch->setValue(3, false);
968 osg::Matrixd &viewMatrix = mainShadowCamera->getViewMatrix();
970 osg::Vec4 aim = osg::Vec4( 0.0, 0.0, 0.0, 1.0 ) * camera->getInverseViewMatrix();
972 osg::Vec3 position( aim.x(), aim.y(), aim.z() );
973 viewMatrix.makeLookAt( position, position + (getSunDirection() * 10000.0), position );
979 void FGRenderer::updateShadowMapSize(int mapSize)
981 if ( ((~( mapSize-1 )) & mapSize) != mapSize ) {
982 SG_LOG( SG_VIEW, SG_ALERT, "Map size is not a power of two" );
985 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
986 ii != CameraGroup::getDefault()->camerasEnd();
989 CameraInfo* info = ii->get();
990 Camera* camera = info->getCamera(SHADOW_CAMERA);
991 if (camera == 0) continue;
993 Texture2D* tex = info->getBuffer(RenderBufferInfo::SHADOW_BUFFER);
994 if (tex == 0) continue;
996 tex->setTextureSize( mapSize, mapSize );
997 tex->dirtyTextureObject();
999 Viewport* vp = camera->getViewport();
1000 vp->width() = mapSize;
1001 vp->height() = mapSize;
1003 osgViewer::Renderer* renderer
1004 = static_cast<osgViewer::Renderer*>(camera->getRenderer());
1005 for (int i = 0; i < 2; ++i) {
1006 osgUtil::SceneView* sceneView = renderer->getSceneView(i);
1007 sceneView->getRenderStage()->setFrameBufferObject(0);
1008 sceneView->getRenderStage()->setCameraRequiresSetUp(true);
1009 if (sceneView->getRenderStageLeft()) {
1010 sceneView->getRenderStageLeft()->setFrameBufferObject(0);
1011 sceneView->getRenderStageLeft()->setCameraRequiresSetUp(true);
1013 if (sceneView->getRenderStageRight()) {
1014 sceneView->getRenderStageRight()->setFrameBufferObject(0);
1015 sceneView->getRenderStageRight()->setCameraRequiresSetUp(true);
1019 int cascadeSize = mapSize / 2;
1020 Group* grp = camera->getChild(0)->asGroup();
1021 for (int i = 0; i < 4; ++i ) {
1022 Camera* cascadeCam = static_cast<Camera*>( grp->getChild(i) );
1023 cascadeCam->setViewport( int( i / 2 ) * cascadeSize, (i & 1) * cascadeSize, cascadeSize, cascadeSize );
1026 _shadowMapSize = mapSize;
1030 void FGRenderer::enableShadows(bool enabled)
1032 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
1033 ii != CameraGroup::getDefault()->camerasEnd();
1036 CameraInfo* info = ii->get();
1037 Camera* camera = info->getCamera(SHADOW_CAMERA);
1038 if (camera == 0) continue;
1040 osg::Switch* shadowSwitch = camera->getChild(0)->asSwitch();
1042 shadowSwitch->setAllChildrenOn();
1044 shadowSwitch->setAllChildrenOff();
1048 void FGRenderer::updateCascadeFar(int index, float far_m)
1050 if (index < 0 || index > 3)
1052 _cascadeFar[index] = far_m;
1053 _shadowDistances->set( osg::Vec4f(_cascadeFar[0], _cascadeFar[1], _cascadeFar[2], _cascadeFar[3]) );
1056 void FGRenderer::updateCascadeNumber(size_t num)
1058 if (num < 1 || num > 4)
1061 _shadowNumber->set( (int)_numCascades );
1065 #define STRINGIFY(x) #x
1066 #define TOSTRING(x) STRINGIFY(x)
1068 const char *ambient_vert_src = ""
1069 "#line " TOSTRING(__LINE__) " 1\n"
1071 " gl_Position = gl_Vertex;\n"
1072 " gl_TexCoord[0] = gl_MultiTexCoord0;\n"
1075 const char *ambient_frag_src = ""
1076 "#line " TOSTRING(__LINE__) " 1\n"
1077 "uniform sampler2D color_tex;\n"
1078 // "uniform sampler2D ao_tex;\n"
1079 "uniform sampler2D normal_tex;\n"
1080 "uniform sampler2D spec_emis_tex;\n"
1081 "uniform vec4 fg_SunAmbientColor;\n"
1083 " vec2 coords = gl_TexCoord[0].xy;\n"
1084 " float initialized = texture2D( spec_emis_tex, coords ).a;\n"
1085 " if ( initialized < 0.1 )\n"
1087 " vec3 tcolor = texture2D( color_tex, coords ).rgb;\n"
1088 // " float ao = texture2D( ao_tex, coords ).r;\n"
1089 // " gl_FragColor = vec4(tcolor*fg_SunAmbientColor.rgb*ao, 1.0);\n"
1090 " gl_FragColor = vec4(tcolor*fg_SunAmbientColor.rgb, 1.0);\n"
1093 const char *sunlight_vert_src = ""
1094 "#line " TOSTRING(__LINE__) " 1\n"
1095 // "uniform mat4 fg_ViewMatrixInverse;\n"
1096 "uniform mat4 fg_ProjectionMatrixInverse;\n"
1097 "varying vec3 ray;\n"
1099 " gl_Position = gl_Vertex;\n"
1100 " gl_TexCoord[0] = gl_MultiTexCoord0;\n"
1101 // " ray = (fg_ViewMatrixInverse * vec4((fg_ProjectionMatrixInverse * gl_Vertex).xyz, 0.0)).xyz;\n"
1102 " ray = (fg_ProjectionMatrixInverse * gl_Vertex).xyz;\n"
1105 const char *sunlight_frag_src = ""
1109 "#line " TOSTRING(__LINE__) " 1\n"
1110 "uniform mat4 fg_ViewMatrix;\n"
1111 "uniform sampler2D depth_tex;\n"
1112 "uniform sampler2D normal_tex;\n"
1113 "uniform sampler2D color_tex;\n"
1114 "uniform sampler2D spec_emis_tex;\n"
1115 "uniform sampler2DShadow shadow_tex;\n"
1116 "uniform vec4 fg_SunDiffuseColor;\n"
1117 "uniform vec4 fg_SunSpecularColor;\n"
1118 "uniform vec3 fg_SunDirection;\n"
1119 "uniform vec3 fg_Planes;\n"
1120 "varying vec3 ray;\n"
1121 "vec4 DynamicShadow( in vec4 ecPosition, out vec4 tint )\n"
1124 " vec2 shift = vec2( 0.0 );\n"
1126 " if (ecPosition.z > -5.0) {\n"
1128 " tint = vec4(0.0,1.0,0.0,1.0);\n"
1129 " } else if (ecPosition.z > -50.0) {\n"
1131 " shift = vec2( 0.0, 0.5 );\n"
1132 " tint = vec4(0.0,0.0,1.0,1.0);\n"
1133 " } else if (ecPosition.z > -512.0) {\n"
1135 " shift = vec2( 0.5, 0.0 );\n"
1136 " tint = vec4(1.0,1.0,0.0,1.0);\n"
1137 " } else if (ecPosition.z > -10000.0) {\n"
1138 " shift = vec2( 0.5, 0.5 );\n"
1139 " tint = vec4(1.0,0.0,0.0,1.0);\n"
1141 " return vec4(1.1,1.1,0.0,1.0);\n" // outside, clamp to border
1143 " coords.s = dot( ecPosition, gl_EyePlaneS[index] );\n"
1144 " coords.t = dot( ecPosition, gl_EyePlaneT[index] );\n"
1145 " coords.p = dot( ecPosition, gl_EyePlaneR[index] );\n"
1146 " coords.q = dot( ecPosition, gl_EyePlaneQ[index] );\n"
1147 " coords.st *= .5;\n"
1148 " coords.st += shift;\n"
1152 " vec2 coords = gl_TexCoord[0].xy;\n"
1153 " vec4 spec_emis = texture2D( spec_emis_tex, coords );\n"
1154 " if ( spec_emis.a < 0.1 )\n"
1157 " normal.xy = texture2D( normal_tex, coords ).rg * 2.0 - vec2(1.0,1.0);\n"
1158 " normal.z = sqrt( 1.0 - dot( normal.xy, normal.xy ) );\n"
1159 " float len = length(normal);\n"
1161 " vec3 viewDir = normalize(ray);\n"
1162 " float depth = texture2D( depth_tex, coords ).r;\n"
1164 " pos.z = - fg_Planes.y / (fg_Planes.x + depth * fg_Planes.z);\n"
1165 " pos.xy = viewDir.xy / viewDir.z * pos.z;\n"
1169 " float shadow = 1.0;\n"
1171 " float shadow = shadow2DProj( shadow_tex, DynamicShadow( vec4( pos, 1.0 ), tint ) ).r;\n"
1173 " float kernel[9] = float[]( 36/256.0, 24/256.0, 6/256.0,\n"
1174 " 24/256.0, 16/256.0, 4/256.0,\n"
1175 " 6/256.0, 4/256.0, 1/256.0 );\n"
1176 " float shadow = 0;\n"
1177 " for( int x = -2; x <= 2; ++x )\n"
1178 " for( int y = -2; y <= 2; ++y )\n"
1179 " shadow += kernel[abs(x)*3 + abs(y)] * shadow2DProj( shadow_tex, DynamicShadow( vec4(pos + vec3(0.05 * x, 0.05 * y, 0), 1.0), tint ) ).r;\n"
1181 " vec3 lightDir = (fg_ViewMatrix * vec4( fg_SunDirection, 0.0 )).xyz;\n"
1182 " lightDir = normalize( lightDir );\n"
1183 " vec3 color = texture2D( color_tex, coords ).rgb;\n"
1184 " vec3 Idiff = clamp( dot( lightDir, normal ), 0.0, 1.0 ) * color * fg_SunDiffuseColor.rgb;\n"
1185 " vec3 halfDir = lightDir - viewDir;\n"
1186 " len = length( halfDir );\n"
1187 " vec3 Ispec = vec3(0.0);\n"
1188 " vec3 Iemis = spec_emis.z * color;\n"
1189 " if (len > 0.0001) {\n"
1190 " halfDir /= len;\n"
1191 " Ispec = pow( clamp( dot( halfDir, normal ), 0.0, 1.0 ), spec_emis.y * 255.0 ) * spec_emis.x * fg_SunSpecularColor.rgb;\n"
1193 " gl_FragColor = vec4(mix(vec3(0.0), Idiff + Ispec, shadow) + Iemis, 1.0);\n"
1194 // " gl_FragColor = mix(tint, vec4(mix(vec3(0.0), Idiff + Ispec, shadow) + Iemis, 1.0), 0.92);\n"
1197 const char *fog_vert_src = ""
1198 "#line " TOSTRING(__LINE__) " 1\n"
1199 "uniform mat4 fg_ProjectionMatrixInverse;\n"
1200 "varying vec3 ray;\n"
1202 " gl_Position = gl_Vertex;\n"
1203 " gl_TexCoord[0] = gl_MultiTexCoord0;\n"
1204 " ray = (fg_ProjectionMatrixInverse * gl_Vertex).xyz;\n"
1207 const char *fog_frag_src = ""
1208 "#line " TOSTRING(__LINE__) " 1\n"
1209 "uniform sampler2D depth_tex;\n"
1210 "uniform sampler2D normal_tex;\n"
1211 "uniform sampler2D color_tex;\n"
1212 "uniform sampler2D spec_emis_tex;\n"
1213 "uniform vec4 fg_FogColor;\n"
1214 "uniform float fg_FogDensity;\n"
1215 "uniform vec3 fg_Planes;\n"
1216 "varying vec3 ray;\n"
1218 " vec2 coords = gl_TexCoord[0].xy;\n"
1219 " float initialized = texture2D( spec_emis_tex, coords ).a;\n"
1220 " if ( initialized < 0.1 )\n"
1223 " normal.xy = texture2D( normal_tex, coords ).rg * 2.0 - vec2(1.0,1.0);\n"
1224 " normal.z = sqrt( 1.0 - dot( normal.xy, normal.xy ) );\n"
1225 " float len = length(normal);\n"
1227 " vec3 viewDir = normalize(ray);\n"
1228 " float depth = texture2D( depth_tex, coords ).r;\n"
1230 " pos.z = - fg_Planes.y / (fg_Planes.x + depth * fg_Planes.z);\n"
1231 " pos.xy = viewDir.xy / viewDir.z * pos.z;\n"
1233 " float fogFactor = 0.0;\n"
1234 " const float LOG2 = 1.442695;\n"
1235 " fogFactor = exp2(-fg_FogDensity * fg_FogDensity * pos.z * pos.z * LOG2);\n"
1236 " fogFactor = clamp(fogFactor, 0.0, 1.0);\n"
1238 " gl_FragColor = vec4(fg_FogColor.rgb, 1.0 - fogFactor);\n"
1241 osg::Camera* FGRenderer::buildDeferredLightingCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc )
1243 osg::Camera* camera = new osg::Camera;
1244 info->addCamera(flightgear::LIGHTING_CAMERA, camera );
1246 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( flightgear::LIGHTING_CAMERA, info ) );
1247 camera->setAllowEventFocus(false);
1248 camera->setGraphicsContext(gc);
1249 camera->setViewport(new Viewport);
1250 camera->setName("LightingC");
1251 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1252 camera->setRenderOrder(osg::Camera::POST_RENDER, 50);
1253 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
1254 camera->setViewport( new osg::Viewport );
1255 attachBufferToCamera( info, camera, osg::Camera::DEPTH_BUFFER, flightgear::LIGHTING_CAMERA, flightgear::RenderBufferInfo::DEPTH_BUFFER );
1256 attachBufferToCamera( info, camera, osg::Camera::COLOR_BUFFER, flightgear::LIGHTING_CAMERA, flightgear::RenderBufferInfo::LIGHTING_BUFFER );
1257 camera->setDrawBuffer(GL_FRONT);
1258 camera->setReadBuffer(GL_FRONT);
1259 camera->setClearColor( osg::Vec4( 0., 0., 0., 1. ) );
1260 camera->setClearMask( GL_COLOR_BUFFER_BIT );
1261 osg::StateSet* ss = camera->getOrCreateStateSet();
1262 ss->setAttribute( new osg::Depth(osg::Depth::LESS, 0.0, 1.0, false) );
1264 osg::Group* lightingGroup = new osg::Group;
1266 osg::Camera* quadCam1 = new osg::Camera;
1267 quadCam1->setName( "QuadCamera1" );
1268 quadCam1->setClearMask(0);
1269 quadCam1->setAllowEventFocus(false);
1270 quadCam1->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1271 quadCam1->setRenderOrder(osg::Camera::NESTED_RENDER);
1272 quadCam1->setViewMatrix(osg::Matrix::identity());
1273 quadCam1->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1274 quadCam1->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1275 ss = quadCam1->getOrCreateStateSet();
1276 ss->addUniform( _ambientFactor );
1277 ss->addUniform( info->projInverse );
1278 ss->addUniform( info->viewInverse );
1279 ss->addUniform( info->view );
1280 ss->addUniform( _sunDiffuse );
1281 ss->addUniform( _sunSpecular );
1282 ss->addUniform( _sunDirection );
1283 ss->addUniform( _planes );
1284 ss->addUniform( _shadowNumber );
1285 ss->addUniform( _shadowDistances );
1287 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1288 g->setUseDisplayList(false);
1289 simgear::EffectGeode* eg = new simgear::EffectGeode;
1290 simgear::Effect* effect = simgear::makeEffect("Effects/ambient", true);
1292 eg->setEffect( effect );
1294 SG_LOG( SG_VIEW, SG_ALERT, "=> Using default, builtin, Effects/ambient" );
1295 ss = eg->getOrCreateStateSet();
1296 ss->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
1297 ss->setMode( GL_DEPTH_TEST, osg::StateAttribute::OFF );
1298 ss->setTextureAttributeAndModes( 0, info->getBuffer( flightgear::RenderBufferInfo::DEPTH_BUFFER ) );
1299 ss->setTextureAttributeAndModes( 1, info->getBuffer( flightgear::RenderBufferInfo::NORMAL_BUFFER ) );
1300 ss->setTextureAttributeAndModes( 2, info->getBuffer( flightgear::RenderBufferInfo::DIFFUSE_BUFFER ) );
1301 ss->setTextureAttributeAndModes( 3, info->getBuffer( flightgear::RenderBufferInfo::SPEC_EMIS_BUFFER ) );
1302 //ss->setTextureAttributeAndModes( 4, info->gBuffer->aoBuffer[2] );
1303 ss->addUniform( new osg::Uniform( "depth_tex", 0 ) );
1304 ss->addUniform( new osg::Uniform( "normal_tex", 1 ) );
1305 ss->addUniform( new osg::Uniform( "color_tex", 2 ) );
1306 ss->addUniform( new osg::Uniform( "spec_emis_tex", 3 ) );
1307 //ss->addUniform( new osg::Uniform( "ao_tex", 4 ) );
1308 ss->setRenderBinDetails( 0, "RenderBin" );
1309 osg::Program* program = new osg::Program;
1310 program->addShader( new osg::Shader( osg::Shader::VERTEX, ambient_vert_src ) );
1311 program->addShader( new osg::Shader( osg::Shader::FRAGMENT, ambient_frag_src ) );
1312 ss->setAttributeAndModes( program );
1315 g->setName( "AmbientQuad" );
1316 eg->setName("AmbientQuad");
1317 eg->setCullingActive(false);
1319 quadCam1->addChild( eg );
1321 g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1322 g->setUseDisplayList(false);
1323 g->setName( "SunlightQuad" );
1324 eg = new simgear::EffectGeode;
1325 effect = simgear::makeEffect("Effects/sunlight", true);
1327 eg->setEffect( effect );
1329 SG_LOG( SG_VIEW, SG_ALERT, "=> Using default, builtin, Effects/sunlight" );
1330 ss = eg->getOrCreateStateSet();
1331 ss->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
1332 ss->setMode( GL_DEPTH_TEST, osg::StateAttribute::OFF );
1333 ss->setAttributeAndModes( new osg::BlendFunc( osg::BlendFunc::ONE, osg::BlendFunc::ONE ) );
1334 ss->setTextureAttribute( 0, info->getBuffer( flightgear::RenderBufferInfo::DEPTH_BUFFER ) );
1335 ss->setTextureAttribute( 1, info->getBuffer( flightgear::RenderBufferInfo::NORMAL_BUFFER ) );
1336 ss->setTextureAttribute( 2, info->getBuffer( flightgear::RenderBufferInfo::DIFFUSE_BUFFER ) );
1337 ss->setTextureAttribute( 3, info->getBuffer( flightgear::RenderBufferInfo::SPEC_EMIS_BUFFER ) );
1338 ss->setTextureAttribute( 4, info->getBuffer( flightgear::RenderBufferInfo::SHADOW_BUFFER ) );
1339 ss->addUniform( new osg::Uniform( "depth_tex", 0 ) );
1340 ss->addUniform( new osg::Uniform( "normal_tex", 1 ) );
1341 ss->addUniform( new osg::Uniform( "color_tex", 2 ) );
1342 ss->addUniform( new osg::Uniform( "spec_emis_tex", 3 ) );
1343 ss->addUniform( new osg::Uniform( "shadow_tex", 4 ) );
1344 ss->setRenderBinDetails( 1, "RenderBin" );
1345 osg::Program* program = new osg::Program;
1346 program->addShader( new osg::Shader( osg::Shader::VERTEX, sunlight_vert_src ) );
1347 program->addShader( new osg::Shader( osg::Shader::FRAGMENT, sunlight_frag_src ) );
1348 ss->setAttributeAndModes( program );
1350 eg->setName("SunlightQuad");
1351 eg->setCullingActive(false);
1353 quadCam1->addChild( eg );
1355 osg::Camera* lightCam = new osg::Camera;
1356 ss = lightCam->getOrCreateStateSet();
1357 ss->addUniform( _planes );
1358 ss->addUniform( info->bufferSize );
1359 lightCam->setName( "LightCamera" );
1360 lightCam->setClearMask(0);
1361 lightCam->setAllowEventFocus(false);
1362 lightCam->setReferenceFrame(osg::Transform::RELATIVE_RF);
1363 lightCam->setRenderOrder(osg::Camera::NESTED_RENDER,1);
1364 lightCam->setViewMatrix(osg::Matrix::identity());
1365 lightCam->setProjectionMatrix(osg::Matrix::identity());
1366 lightCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1367 lightCam->setCullMask( simgear::MODELLIGHT_BIT );
1368 lightCam->setInheritanceMask( osg::CullSettings::ALL_VARIABLES & ~osg::CullSettings::CULL_MASK );
1369 lightCam->addChild( mDeferredRealRoot.get() );
1372 osg::Camera* quadCam2 = new osg::Camera;
1373 quadCam2->setName( "QuadCamera1" );
1374 quadCam2->setClearMask(0);
1375 quadCam2->setAllowEventFocus(false);
1376 quadCam2->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1377 quadCam2->setRenderOrder(osg::Camera::NESTED_RENDER,2);
1378 quadCam2->setViewMatrix(osg::Matrix::identity());
1379 quadCam2->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1380 quadCam2->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1381 ss = quadCam2->getOrCreateStateSet();
1382 ss->addUniform( _ambientFactor );
1383 ss->addUniform( info->projInverse );
1384 ss->addUniform( info->viewInverse );
1385 ss->addUniform( info->view );
1386 ss->addUniform( _sunDiffuse );
1387 ss->addUniform( _sunSpecular );
1388 ss->addUniform( _sunDirection );
1389 ss->addUniform( _fogColor );
1390 ss->addUniform( _fogDensity );
1391 ss->addUniform( _planes );
1393 g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1394 g->setUseDisplayList(false);
1395 g->setName( "FogQuad" );
1396 eg = new simgear::EffectGeode;
1397 effect = simgear::makeEffect("Effects/fog", true);
1399 eg->setEffect( effect );
1401 SG_LOG( SG_VIEW, SG_ALERT, "=> Using default, builtin, Effects/fog" );
1402 ss = eg->getOrCreateStateSet();
1403 ss->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
1404 ss->setMode( GL_DEPTH_TEST, osg::StateAttribute::OFF );
1405 ss->setAttributeAndModes( new osg::BlendFunc( osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA ) );
1406 ss->setTextureAttributeAndModes( 0, info->getBuffer( flightgear::RenderBufferInfo::DEPTH_BUFFER ) );
1407 ss->setTextureAttributeAndModes( 1, info->getBuffer( flightgear::RenderBufferInfo::NORMAL_BUFFER ) );
1408 ss->setTextureAttributeAndModes( 2, info->getBuffer( flightgear::RenderBufferInfo::DIFFUSE_BUFFER ) );
1409 ss->setTextureAttributeAndModes( 3, info->getBuffer( flightgear::RenderBufferInfo::SPEC_EMIS_BUFFER ) );
1410 ss->addUniform( new osg::Uniform( "depth_tex", 0 ) );
1411 ss->addUniform( new osg::Uniform( "normal_tex", 1 ) );
1412 ss->addUniform( new osg::Uniform( "color_tex", 2 ) );
1413 ss->addUniform( new osg::Uniform( "spec_emis_tex", 3 ) );
1414 ss->setRenderBinDetails( 10000, "RenderBin" );
1415 osg::Program* program = new osg::Program;
1416 program->addShader( new osg::Shader( osg::Shader::VERTEX, fog_vert_src ) );
1417 program->addShader( new osg::Shader( osg::Shader::FRAGMENT, fog_frag_src ) );
1418 ss->setAttributeAndModes( program );
1420 eg->setName("FogQuad");
1421 eg->setCullingActive(false);
1423 quadCam2->addChild( eg );
1425 lightingGroup->addChild( _sky->getPreRoot() );
1426 lightingGroup->addChild( _sky->getCloudRoot() );
1427 lightingGroup->addChild( quadCam1 );
1428 lightingGroup->addChild( lightCam );
1429 lightingGroup->addChild( quadCam2 );
1431 camera->addChild( lightingGroup );
1436 flightgear::CameraInfo*
1437 FGRenderer::buildDeferredPipeline(flightgear::CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
1438 const osg::Matrix& view,
1439 const osg::Matrix& projection,
1440 osg::GraphicsContext* gc)
1442 CameraInfo* info = new CameraInfo(flags);
1443 buildDeferredBuffers( info, _shadowMapSize, !fgGetBool("/sim/rendering/no-16bit-buffer", false ) );
1445 osg::Camera* geometryCamera = buildDeferredGeometryCamera( info, gc );
1446 cgroup->getViewer()->addSlave(geometryCamera, false);
1447 installCullVisitor(geometryCamera);
1448 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1449 info->getRenderStageInfo(GEOMETRY_CAMERA).slaveIndex = slaveIndex;
1451 Camera* shadowCamera = buildDeferredShadowCamera( info, gc );
1452 cgroup->getViewer()->addSlave(shadowCamera, false);
1453 installCullVisitor(shadowCamera);
1454 slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1455 info->getRenderStageInfo(SHADOW_CAMERA).slaveIndex = slaveIndex;
1457 osg::Camera* lightingCamera = buildDeferredLightingCamera( info, gc );
1458 cgroup->getViewer()->addSlave(lightingCamera, false);
1459 installCullVisitor(lightingCamera);
1460 slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1461 info->getRenderStageInfo(LIGHTING_CAMERA).slaveIndex = slaveIndex;
1463 camera->setName( "DisplayC" );
1464 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( flightgear::DISPLAY_CAMERA, info ) );
1465 camera->setReferenceFrame(Transform::ABSOLUTE_RF);
1466 camera->setAllowEventFocus(false);
1467 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1468 g->setUseDisplayList(false); //DEBUG
1469 simgear::EffectGeode* eg = new simgear::EffectGeode;
1470 simgear::Effect* effect = simgear::makeEffect("Effects/display", true);
1472 SG_LOG(SG_VIEW, SG_ALERT, "Effects/display not found");
1475 eg->setEffect(effect);
1476 eg->setCullingActive(false);
1478 camera->setViewMatrix(osg::Matrix::identity());
1479 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1480 camera->addChild(eg);
1482 cgroup->getViewer()->addSlave(camera, false);
1483 installCullVisitor(camera);
1484 slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1485 info->addCamera( DISPLAY_CAMERA, camera, slaveIndex, true );
1486 camera->setRenderOrder(Camera::POST_RENDER, 99+slaveIndex); //FIXME
1487 cgroup->addCamera(info);
1493 FGRenderer::setupView( void )
1495 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1496 osg::initNotifyLevel();
1498 // The number of polygon-offset "units" to place between layers. In
1499 // principle, one is supposed to be enough. In practice, I find that
1500 // my hardware/driver requires many more.
1501 osg::PolygonOffset::setUnitsMultiplier(1);
1502 osg::PolygonOffset::setFactorMultiplier(1);
1504 // Go full screen if requested ...
1505 if ( fgGetBool("/sim/startup/fullscreen") )
1509 // The sun and moon diameters are scaled down numbers of the
1510 // actual diameters. This was needed to fit both the sun and the
1511 // moon within the distance to the far clip plane.
1512 // Moon diameter: 3,476 kilometers
1513 // Sun diameter: 1,390,000 kilometers
1514 _sky->build( 80000.0, 80000.0,
1516 *globals->get_ephem(),
1517 fgGetNode("/environment", true));
1520 ->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1522 osg::StateSet* stateSet = mRoot->getOrCreateStateSet();
1524 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
1526 stateSet->setAttribute(new osg::Depth(osg::Depth::LESS));
1527 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1529 stateSet->setAttribute(new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01));
1530 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::OFF);
1531 stateSet->setAttribute(new osg::BlendFunc);
1532 stateSet->setMode(GL_BLEND, osg::StateAttribute::OFF);
1534 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
1536 // this will be set below
1537 stateSet->setMode(GL_NORMALIZE, osg::StateAttribute::OFF);
1539 osg::Material* material = new osg::Material;
1540 stateSet->setAttribute(material);
1542 stateSet->setTextureAttribute(0, new osg::TexEnv);
1543 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
1545 osg::Hint* hint = new osg::Hint(GL_FOG_HINT, GL_DONT_CARE);
1546 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/fog"));
1547 stateSet->setAttribute(hint);
1548 hint = new osg::Hint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
1549 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/polygon-smooth"));
1550 stateSet->setAttribute(hint);
1551 hint = new osg::Hint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
1552 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/line-smooth"));
1553 stateSet->setAttribute(hint);
1554 hint = new osg::Hint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
1555 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/point-smooth"));
1556 stateSet->setAttribute(hint);
1557 hint = new osg::Hint(GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE);
1558 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/perspective-correction"));
1559 stateSet->setAttribute(hint);
1561 osg::Group* sceneGroup = new osg::Group;
1562 sceneGroup->addChild(globals->get_scenery()->get_scene_graph());
1563 sceneGroup->setNodeMask(~simgear::BACKGROUND_BIT);
1565 //sceneGroup->addChild(thesky->getCloudRoot());
1567 stateSet = sceneGroup->getOrCreateStateSet();
1568 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
1570 // need to update the light on every frame
1571 // OSG LightSource objects are rather confusing. OSG only supports
1572 // the 10 lights specified by OpenGL itself; if more than one
1573 // LightSource in the scene graph have the same light number, it's
1574 // indeterminate which values will be used to render geometry that
1575 // has that light number enabled. Also, adding children to a
1576 // LightSource is just a shortcut for setting up a state set that
1577 // has the corresponding OpenGL light enabled: a LightSource will
1578 // affect geometry anywhere in the scene graph that has its light
1579 // number enabled in a state set.
1580 LightSource* lightSource = new LightSource;
1581 lightSource->getLight()->setDataVariance(Object::DYNAMIC);
1582 // relative because of CameraView being just a clever transform node
1583 lightSource->setReferenceFrame(osg::LightSource::RELATIVE_RF);
1584 lightSource->setLocalStateSetModes(osg::StateAttribute::ON);
1585 lightSource->setUpdateCallback(new FGLightSourceUpdateCallback);
1586 mRealRoot->addChild(lightSource);
1587 // we need a white diffuse light for the phase of the moon
1588 osg::LightSource* sunLight = new osg::LightSource;
1589 sunLight->getLight()->setDataVariance(Object::DYNAMIC);
1590 sunLight->getLight()->setLightNum(1);
1591 sunLight->setUpdateCallback(new FGLightSourceUpdateCallback(true));
1592 sunLight->setReferenceFrame(osg::LightSource::RELATIVE_RF);
1593 sunLight->setLocalStateSetModes(osg::StateAttribute::ON);
1595 // Hang a StateSet above the sky subgraph in order to turn off
1597 Group* skyGroup = new Group;
1598 StateSet* skySS = skyGroup->getOrCreateStateSet();
1599 skySS->setMode(GL_LIGHT0, StateAttribute::OFF);
1600 skyGroup->addChild(_sky->getPreRoot());
1601 sunLight->addChild(skyGroup);
1602 mRoot->addChild(sceneGroup);
1603 if ( _classicalRenderer )
1604 mRoot->addChild(sunLight);
1606 // Clouds are added to the scene graph later
1607 stateSet = globals->get_scenery()->get_scene_graph()->getOrCreateStateSet();
1608 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
1609 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::ON);
1610 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
1612 // enable disable specular highlights.
1613 // is the place where we might plug in an other fragment shader ...
1614 osg::LightModel* lightModel = new osg::LightModel;
1615 lightModel->setUpdateCallback(new FGLightModelUpdateCallback);
1616 stateSet->setAttribute(lightModel);
1618 // switch to enable wireframe
1619 osg::PolygonMode* polygonMode = new osg::PolygonMode;
1620 polygonMode->setUpdateCallback(new FGWireFrameModeUpdateCallback);
1621 stateSet->setAttributeAndModes(polygonMode);
1623 // scene fog handling
1624 osg::Fog* fog = new osg::Fog;
1625 fog->setUpdateCallback(new FGFogUpdateCallback);
1626 stateSet->setAttributeAndModes(fog);
1627 stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
1630 osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
1633 osg::Geode* geode = new osg::Geode;
1634 geode->addDrawable(new SGPuDrawable);
1635 geode->addDrawable(new SGHUDDrawable);
1636 guiCamera->addChild(geode);
1638 panelSwitch = new osg::Switch;
1639 osg::StateSet* stateSet = panelSwitch->getOrCreateStateSet();
1640 stateSet->setRenderBinDetails(1000, "RenderBin");
1642 // speed optimization?
1643 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
1644 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
1645 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
1646 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
1647 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1650 panelSwitch->setUpdateCallback(new FGPanelSwitchCallback);
1653 guiCamera->addChild(panelSwitch.get());
1656 osg::Switch* sw = new osg::Switch;
1657 sw->setUpdateCallback(new FGScenerySwitchCallback);
1658 sw->addChild(mRoot.get());
1659 mRealRoot->addChild(sw);
1660 // The clouds are attached directly to the scene graph root
1661 // because, in theory, they don't want the same default state set
1662 // as the rest of the scene. This may not be true in practice.
1663 if ( _classicalRenderer ) {
1664 mRealRoot->addChild(_sky->getCloudRoot());
1665 mRealRoot->addChild(FGCreateRedoutNode());
1667 // Attach empty program to the scene root so that shader programs
1668 // don't leak into state sets (effects) that shouldn't have one.
1669 stateSet = mRealRoot->getOrCreateStateSet();
1670 stateSet->setAttributeAndModes(new osg::Program, osg::StateAttribute::ON);
1672 mDeferredRealRoot->addChild( mRealRoot.get() );
1675 void FGRenderer::panelChanged()
1681 osg::Node* n = FGPanelNode::createNode(globals->get_current_panel());
1682 if (panelSwitch->getNumChildren()) {
1683 panelSwitch->setChild(0, n);
1685 panelSwitch->addChild(n);
1689 // Update all Visuals (redraws anything graphics related)
1691 FGRenderer::update( ) {
1692 if (!(_scenery_loaded->getBoolValue() ||
1693 _scenery_override->getBoolValue()))
1695 _splash_alpha->setDoubleValue(1.0);
1698 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1700 if (_splash_alpha->getDoubleValue()>0.0)
1702 // Fade out the splash screen
1703 const double fade_time = 0.5;
1704 const double fade_steps_per_sec = 10;
1705 double delay_time = SGMiscd::min(fade_time/fade_steps_per_sec,
1706 (SGTimeStamp::now() - _splash_time).toSecs());
1707 _splash_time = SGTimeStamp::now();
1708 double sAlpha = _splash_alpha->getDoubleValue();
1709 sAlpha -= SGMiscd::max(0.0,delay_time/fade_time);
1710 FGScenerySwitchCallback::scenery_enabled = (sAlpha<1.0);
1711 _splash_alpha->setDoubleValue((sAlpha < 0) ? 0.0 : sAlpha);
1714 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
1715 if (!_classicalRenderer ) {
1716 _ambientFactor->set( toOsg(l->scene_ambient()) );
1717 _sunDiffuse->set( toOsg(l->scene_diffuse()) );
1718 _sunSpecular->set( toOsg(l->scene_specular()) );
1719 _sunDirection->set( osg::Vec3f(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]) );
1722 // update fog params
1723 double actual_visibility;
1724 if (_cloud_status->getBoolValue()) {
1725 actual_visibility = _sky->get_visibility();
1727 actual_visibility = _visibility_m->getDoubleValue();
1730 // idle_state is now 1000 meaning we've finished all our
1731 // initializations and are running the main loop, so this will
1732 // now work without seg faulting the system.
1734 FGViewer *current__view = globals->get_current_view();
1735 // Force update of center dependent values ...
1736 current__view->set_dirty();
1738 osg::Camera *camera = viewer->getCamera();
1740 bool skyblend = _skyblend->getBoolValue();
1743 if ( _textures->getBoolValue() ) {
1744 SGVec4f clearColor(l->adj_fog_color());
1745 camera->setClearColor(toOsg(clearColor));
1748 SGVec4f clearColor(l->sky_color());
1749 camera->setClearColor(toOsg(clearColor));
1752 // update fog params if visibility has changed
1753 double visibility_meters = _visibility_m->getDoubleValue();
1754 _sky->set_visibility(visibility_meters);
1756 double altitude_m = _altitude_ft->getDoubleValue() * SG_FEET_TO_METER;
1757 _sky->modify_vis( altitude_m, 0.0 /* time factor, now unused */);
1759 // update the sky dome
1762 // The sun and moon distances are scaled down versions
1763 // of the actual distance to get both the moon and the sun
1764 // within the range of the far clip plane.
1765 // Moon distance: 384,467 kilometers
1766 // Sun distance: 150,000,000 kilometers
1768 double sun_horiz_eff, moon_horiz_eff;
1769 if (_horizon_effect->getBoolValue()) {
1771 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_sun_angle()),
1775 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_moon_angle()),
1779 sun_horiz_eff = moon_horiz_eff = 1.0;
1783 sstate.pos = current__view->getViewPosition();
1784 sstate.pos_geod = current__view->getPosition();
1785 sstate.ori = current__view->getViewOrientation();
1786 sstate.spin = l->get_sun_rotation();
1787 sstate.gst = globals->get_time_params()->getGst();
1788 sstate.sun_dist = 50000.0 * sun_horiz_eff;
1789 sstate.moon_dist = 40000.0 * moon_horiz_eff;
1790 sstate.sun_angle = l->get_sun_angle();
1793 scolor.sky_color = SGVec3f(l->sky_color().data());
1794 scolor.adj_sky_color = SGVec3f(l->adj_sky_color().data());
1795 scolor.fog_color = SGVec3f(l->adj_fog_color().data());
1796 scolor.cloud_color = SGVec3f(l->cloud_color().data());
1797 scolor.sun_angle = l->get_sun_angle();
1798 scolor.moon_angle = l->get_moon_angle();
1800 double delta_time_sec = _sim_delta_sec->getDoubleValue();
1801 _sky->reposition( sstate, *globals->get_ephem(), delta_time_sec );
1802 _sky->repaint( scolor, *globals->get_ephem() );
1805 // shadows->setupShadows(
1806 // current__view->getLongitude_deg(),
1807 // current__view->getLatitude_deg(),
1808 // globals->get_time_params()->getGst(),
1809 // globals->get_ephem()->getSunRightAscension(),
1810 // globals->get_ephem()->getSunDeclination(),
1811 // l->get_sun_angle());
1815 // sgEnviro.setLight(l->adj_fog_color());
1816 // sgEnviro.startOfFrame(current__view->get_view_pos(),
1817 // current__view->get_world_up(),
1818 // current__view->getLongitude_deg(),
1819 // current__view->getLatitude_deg(),
1820 // current__view->getAltitudeASL_ft() * SG_FEET_TO_METER,
1824 // sgEnviro.drawLightning();
1826 // double current_view_origin_airspeed_horiz_kt =
1827 // fgGetDouble("/velocities/airspeed-kt", 0.0)
1828 // * cos( fgGetDouble("/orientation/pitch-deg", 0.0)
1829 // * SGD_DEGREES_TO_RADIANS);
1832 // if( is_internal )
1833 // shadows->endOfFrame();
1835 // need to call the update visitor once
1836 mFrameStamp->setCalendarTime(*globals->get_time_params()->getGmt());
1837 mUpdateVisitor->setViewData(current__view->getViewPosition(),
1838 current__view->getViewOrientation());
1839 SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
1840 mUpdateVisitor->setLight(direction, l->scene_ambient(),
1841 l->scene_diffuse(), l->scene_specular(),
1843 l->get_sun_angle()*SGD_RADIANS_TO_DEGREES);
1844 mUpdateVisitor->setVisibility(actual_visibility);
1845 simgear::GroundLightManager::instance()->update(mUpdateVisitor.get());
1846 osg::Node::NodeMask cullMask = ~simgear::LIGHTS_BITS & ~simgear::PICK_BIT;
1847 cullMask |= simgear::GroundLightManager::instance()
1848 ->getLightNodeMask(mUpdateVisitor.get());
1849 if (_panel_hotspots->getBoolValue())
1850 cullMask |= simgear::PICK_BIT;
1851 CameraGroup::getDefault()->setCameraCullMasks(cullMask);
1852 if ( !_classicalRenderer ) {
1853 _fogColor->set( toOsg( l->adj_fog_color() ) );
1854 _fogDensity->set( float( mUpdateVisitor->getFogExp2Density() ) );
1859 FGRenderer::resize( int width, int height )
1861 int curWidth = _xsize->getIntValue(),
1862 curHeight = _ysize->getIntValue();
1863 SG_LOG(SG_VIEW, SG_DEBUG, "FGRenderer::resize: new size " << width << " x " << height);
1864 if ((curHeight != height) || (curWidth != width)) {
1865 // must guard setting these, or PLIB-PUI fails with too many live interfaces
1866 _xsize->setIntValue(width);
1867 _ysize->setIntValue(height);
1872 FGRenderer::pick(std::vector<SGSceneryPick>& pickList,
1873 const osgGA::GUIEventAdapter* ea)
1875 // wipe out the return ...
1877 typedef osgUtil::LineSegmentIntersector::Intersections Intersections;
1878 Intersections intersections;
1880 if (!computeIntersections(CameraGroup::getDefault(), ea, intersections))
1882 for (Intersections::iterator hit = intersections.begin(),
1883 e = intersections.end();
1886 const osg::NodePath& np = hit->nodePath;
1887 osg::NodePath::const_reverse_iterator npi;
1888 for (npi = np.rbegin(); npi != np.rend(); ++npi) {
1889 SGSceneUserData* ud = SGSceneUserData::getSceneUserData(*npi);
1892 for (unsigned i = 0; i < ud->getNumPickCallbacks(); ++i) {
1893 SGPickCallback* pickCallback = ud->getPickCallback(i);
1896 SGSceneryPick sceneryPick;
1897 sceneryPick.info.local = toSG(hit->getLocalIntersectPoint());
1898 sceneryPick.info.wgs84 = toSG(hit->getWorldIntersectPoint());
1899 sceneryPick.callback = pickCallback;
1900 pickList.push_back(sceneryPick);
1904 return !pickList.empty();
1908 FGRenderer::setViewer(osgViewer::Viewer* viewer_)
1914 FGRenderer::setEventHandler(FGEventHandler* eventHandler_)
1916 eventHandler = eventHandler_;
1920 FGRenderer::addCamera(osg::Camera* camera, bool useSceneData)
1922 mRealRoot->addChild(camera);
1926 FGRenderer::removeCamera(osg::Camera* camera)
1928 mRealRoot->removeChild(camera);
1932 FGRenderer::setPlanes( double zNear, double zFar )
1934 _planes->set( osg::Vec3f( - zFar, - zFar * zNear, zFar - zNear ) );
1938 fgDumpSceneGraphToFile(const char* filename)
1940 return osgDB::writeNodeFile(*mRealRoot.get(), filename);
1944 fgDumpTerrainBranchToFile(const char* filename)
1946 return osgDB::writeNodeFile( *globals->get_scenery()->get_terrain_branch(),
1952 fgDumpNodeToFile(osg::Node* node, const char* filename)
1954 return osgDB::writeNodeFile(*node, filename);
1957 namespace flightgear
1959 using namespace osg;
1961 class VisibleSceneInfoVistor : public NodeVisitor, CullStack
1964 VisibleSceneInfoVistor()
1965 : NodeVisitor(CULL_VISITOR, TRAVERSE_ACTIVE_CHILDREN)
1967 setCullingMode(CullSettings::SMALL_FEATURE_CULLING
1968 | CullSettings::VIEW_FRUSTUM_CULLING);
1969 setComputeNearFarMode(CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1972 VisibleSceneInfoVistor(const VisibleSceneInfoVistor& rhs)
1976 META_NodeVisitor("flightgear","VisibleSceneInfoVistor")
1978 typedef std::map<const std::string,int> InfoMap;
1980 void getNodeInfo(Node* node)
1982 const char* typeName = typeid(*node).name();
1983 classInfo[typeName]++;
1984 const std::string& nodeName = node->getName();
1985 if (!nodeName.empty())
1986 nodeInfo[nodeName]++;
1991 using namespace std;
1992 typedef vector<InfoMap::iterator> FreqVector;
1993 cout << "class info:\n";
1995 for (InfoMap::iterator itr = classInfo.begin(), end = classInfo.end();
1998 classes.push_back(itr);
1999 sort(classes.begin(), classes.end(), freqComp);
2000 for (FreqVector::iterator itr = classes.begin(), end = classes.end();
2003 cout << (*itr)->first << " " << (*itr)->second << "\n";
2005 cout << "\nnode info:\n";
2007 for (InfoMap::iterator itr = nodeInfo.begin(), end = nodeInfo.end();
2010 nodes.push_back(itr);
2012 sort (nodes.begin(), nodes.end(), freqComp);
2013 for (FreqVector::iterator itr = nodes.begin(), end = nodes.end();
2016 cout << (*itr)->first << " " << (*itr)->second << "\n";
2021 void doTraversal(Camera* camera, Node* root, Viewport* viewport)
2023 ref_ptr<RefMatrix> projection
2024 = createOrReuseMatrix(camera->getProjectionMatrix());
2025 ref_ptr<RefMatrix> mv = createOrReuseMatrix(camera->getViewMatrix());
2027 viewport = camera->getViewport();
2029 pushViewport(viewport);
2030 pushProjectionMatrix(projection.get());
2031 pushModelViewMatrix(mv.get(), Transform::ABSOLUTE_RF);
2032 root->accept(*this);
2033 popModelViewMatrix();
2034 popProjectionMatrix();
2040 void apply(Node& node)
2049 void apply(Group& node)
2059 void apply(Transform& node)
2064 ref_ptr<RefMatrix> matrix = createOrReuseMatrix(*getModelViewMatrix());
2065 node.computeLocalToWorldMatrix(*matrix,this);
2066 pushModelViewMatrix(matrix.get(), node.getReferenceFrame());
2069 popModelViewMatrix();
2073 void apply(Camera& camera)
2075 // Save current cull settings
2076 CullSettings saved_cull_settings(*this);
2078 // set cull settings from this Camera
2079 setCullSettings(camera);
2080 // inherit the settings from above
2081 inheritCullSettings(saved_cull_settings, camera.getInheritanceMask());
2083 // set the cull mask.
2084 unsigned int savedTraversalMask = getTraversalMask();
2085 bool mustSetCullMask = (camera.getInheritanceMask()
2086 & osg::CullSettings::CULL_MASK) == 0;
2087 if (mustSetCullMask)
2088 setTraversalMask(camera.getCullMask());
2090 osg::RefMatrix* projection = 0;
2091 osg::RefMatrix* modelview = 0;
2093 if (camera.getReferenceFrame()==osg::Transform::RELATIVE_RF) {
2094 if (camera.getTransformOrder()==osg::Camera::POST_MULTIPLY) {
2095 projection = createOrReuseMatrix(*getProjectionMatrix()
2096 *camera.getProjectionMatrix());
2097 modelview = createOrReuseMatrix(*getModelViewMatrix()
2098 * camera.getViewMatrix());
2100 else { // pre multiply
2101 projection = createOrReuseMatrix(camera.getProjectionMatrix()
2102 * (*getProjectionMatrix()));
2103 modelview = createOrReuseMatrix(camera.getViewMatrix()
2104 * (*getModelViewMatrix()));
2107 // an absolute reference frame
2108 projection = createOrReuseMatrix(camera.getProjectionMatrix());
2109 modelview = createOrReuseMatrix(camera.getViewMatrix());
2111 if (camera.getViewport())
2112 pushViewport(camera.getViewport());
2114 pushProjectionMatrix(projection);
2115 pushModelViewMatrix(modelview, camera.getReferenceFrame());
2119 // restore the previous model view matrix.
2120 popModelViewMatrix();
2122 // restore the previous model view matrix.
2123 popProjectionMatrix();
2125 if (camera.getViewport()) popViewport();
2127 // restore the previous traversal mask settings
2128 if (mustSetCullMask)
2129 setTraversalMask(savedTraversalMask);
2131 // restore the previous cull settings
2132 setCullSettings(saved_cull_settings);
2137 static bool freqComp(const InfoMap::iterator& lhs, const InfoMap::iterator& rhs)
2139 return lhs->second > rhs->second;
2145 bool printVisibleSceneInfo(FGRenderer* renderer)
2147 osgViewer::Viewer* viewer = renderer->getViewer();
2148 VisibleSceneInfoVistor vsv;
2150 if (!viewer->getCamera()->getViewport() && viewer->getNumSlaves() > 0) {
2151 const View::Slave& slave = viewer->getSlave(0);
2152 vp = slave._camera->getViewport();
2154 vsv.doTraversal(viewer->getCamera(), viewer->getSceneData(), vp);
2159 // end of renderer.cxx