1 // renderer.cxx -- top level sim routines
3 // Written by Curtis Olson, started May 1997.
4 // This file contains parts of main.cxx prior to october 2004
6 // Copyright (C) 1997 - 2002 Curtis L. Olson - http://www.flightgear.org/~curt
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
30 #include <simgear/compiler.h>
38 #include <boost/foreach.hpp>
40 #include <osg/ref_ptr>
41 #include <osg/AlphaFunc>
42 #include <osg/BlendFunc>
44 #include <osg/CullFace>
45 #include <osg/CullStack>
51 #include <osg/LightModel>
52 #include <osg/LightSource>
53 #include <osg/Material>
55 #include <osg/NodeCallback>
57 #include <osg/PolygonMode>
58 #include <osg/PolygonOffset>
59 #include <osg/Program>
60 #include <osg/Version>
63 #include <osgUtil/LineSegmentIntersector>
65 #include <osg/io_utils>
66 #include <osgDB/WriteFile>
67 #include <osgViewer/Renderer>
69 #include <simgear/scene/material/matlib.hxx>
70 #include <simgear/scene/material/EffectCullVisitor.hxx>
71 #include <simgear/scene/material/Effect.hxx>
72 #include <simgear/scene/material/EffectGeode.hxx>
73 #include <simgear/scene/material/EffectBuilder.hxx>
74 #include <simgear/scene/model/animation.hxx>
75 #include <simgear/scene/model/placement.hxx>
76 #include <simgear/scene/sky/sky.hxx>
77 #include <simgear/scene/util/DeletionManager.hxx>
78 #include <simgear/scene/util/SGUpdateVisitor.hxx>
79 #include <simgear/scene/util/RenderConstants.hxx>
80 #include <simgear/scene/util/SGSceneUserData.hxx>
81 #include <simgear/scene/tgdb/GroundLightManager.hxx>
82 #include <simgear/scene/tgdb/pt_lights.hxx>
83 #include <simgear/scene/tgdb/userdata.hxx>
84 #include <simgear/structure/OSGUtils.hxx>
85 #include <simgear/props/props.hxx>
86 #include <simgear/timing/sg_time.hxx>
87 #include <simgear/ephemeris/ephemeris.hxx>
88 #include <simgear/math/sg_random.h>
90 #include <simgear/screen/jpgfactory.hxx>
93 #include <Time/light.hxx>
94 #include <Time/light.hxx>
95 #include <Cockpit/panel.hxx>
97 #include <Model/panelnode.hxx>
98 #include <Model/modelmgr.hxx>
99 #include <Model/acmodel.hxx>
100 #include <Scenery/scenery.hxx>
101 #include <Scenery/redout.hxx>
102 #include <GUI/new_gui.hxx>
103 #include <Instrumentation/HUD/HUD.hxx>
104 #include <Environment/precipitation_mgr.hxx>
105 #include <Environment/environment_mgr.hxx>
107 //#include <Main/main.hxx>
108 #include "viewer.hxx"
109 #include "viewmgr.hxx"
110 #include "splash.hxx"
111 #include "renderer.hxx"
112 #include "CameraGroup.hxx"
113 #include "FGEventHandler.hxx"
118 using namespace simgear;
119 using namespace flightgear;
121 class FGHintUpdateCallback : public osg::StateAttribute::Callback {
123 FGHintUpdateCallback(const char* configNode) :
124 mConfigNode(fgGetNode(configNode, true))
126 virtual void operator()(osg::StateAttribute* stateAttribute,
129 assert(dynamic_cast<osg::Hint*>(stateAttribute));
130 osg::Hint* hint = static_cast<osg::Hint*>(stateAttribute);
132 const char* value = mConfigNode->getStringValue();
134 hint->setMode(GL_DONT_CARE);
135 else if (0 == strcmp(value, "nicest"))
136 hint->setMode(GL_NICEST);
137 else if (0 == strcmp(value, "fastest"))
138 hint->setMode(GL_FASTEST);
140 hint->setMode(GL_DONT_CARE);
143 SGPropertyNode_ptr mConfigNode;
147 class SGPuDrawable : public osg::Drawable {
151 // Dynamic stuff, do not store geometry
152 setUseDisplayList(false);
153 setDataVariance(Object::DYNAMIC);
155 osg::StateSet* stateSet = getOrCreateStateSet();
156 stateSet->setRenderBinDetails(1001, "RenderBin");
157 // speed optimization?
158 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
159 // We can do translucent menus, so why not. :-)
160 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
161 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
162 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
164 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
166 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
167 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
169 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
170 { drawImplementation(*renderInfo.getState()); }
171 void drawImplementation(osg::State& state) const
173 state.setActiveTextureUnit(0);
174 state.setClientActiveTextureUnit(0);
176 state.disableAllVertexArrays();
178 glPushAttrib(GL_ALL_ATTRIB_BITS);
179 glPushClientAttrib(~0u);
187 virtual osg::Object* cloneType() const { return new SGPuDrawable; }
188 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGPuDrawable; }
193 class SGHUDDrawable : public osg::Drawable {
197 // Dynamic stuff, do not store geometry
198 setUseDisplayList(false);
199 setDataVariance(Object::DYNAMIC);
201 osg::StateSet* stateSet = getOrCreateStateSet();
202 stateSet->setRenderBinDetails(1000, "RenderBin");
204 // speed optimization?
205 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
206 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
207 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
208 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
209 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
211 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
213 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
214 { drawImplementation(*renderInfo.getState()); }
215 void drawImplementation(osg::State& state) const
217 state.setActiveTextureUnit(0);
218 state.setClientActiveTextureUnit(0);
219 state.disableAllVertexArrays();
221 glPushAttrib(GL_ALL_ATTRIB_BITS);
222 glPushClientAttrib(~0u);
224 HUD *hud = static_cast<HUD*>(globals->get_subsystem("hud"));
231 virtual osg::Object* cloneType() const { return new SGHUDDrawable; }
232 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGHUDDrawable; }
237 class FGLightSourceUpdateCallback : public osg::NodeCallback {
241 * @param isSun true if the light is the actual sun i.e., for
242 * illuminating the moon.
244 FGLightSourceUpdateCallback(bool isSun = false) : _isSun(isSun) {}
245 FGLightSourceUpdateCallback(const FGLightSourceUpdateCallback& nc,
247 : NodeCallback(nc, op), _isSun(nc._isSun)
249 META_Object(flightgear,FGLightSourceUpdateCallback);
251 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
253 assert(dynamic_cast<osg::LightSource*>(node));
254 osg::LightSource* lightSource = static_cast<osg::LightSource*>(node);
255 osg::Light* light = lightSource->getLight();
257 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
259 light->setAmbient(Vec4(0.0f, 0.0f, 0.0f, 0.0f));
260 light->setDiffuse(Vec4(1.0f, 1.0f, 1.0f, 1.0f));
261 light->setSpecular(Vec4(0.0f, 0.0f, 0.0f, 0.0f));
263 light->setAmbient(toOsg(l->scene_ambient()));
264 light->setDiffuse(toOsg(l->scene_diffuse()));
265 light->setSpecular(toOsg(l->scene_specular()));
267 osg::Vec4f position(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2], 0);
268 light->setPosition(position);
276 class FGWireFrameModeUpdateCallback : public osg::StateAttribute::Callback {
278 FGWireFrameModeUpdateCallback() :
279 mWireframe(fgGetNode("/sim/rendering/wireframe", true))
281 virtual void operator()(osg::StateAttribute* stateAttribute,
284 assert(dynamic_cast<osg::PolygonMode*>(stateAttribute));
285 osg::PolygonMode* polygonMode;
286 polygonMode = static_cast<osg::PolygonMode*>(stateAttribute);
288 if (mWireframe->getBoolValue())
289 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
290 osg::PolygonMode::LINE);
292 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
293 osg::PolygonMode::FILL);
296 SGPropertyNode_ptr mWireframe;
299 class FGLightModelUpdateCallback : public osg::StateAttribute::Callback {
301 FGLightModelUpdateCallback() :
302 mHighlights(fgGetNode("/sim/rendering/specular-highlight", true))
304 virtual void operator()(osg::StateAttribute* stateAttribute,
307 assert(dynamic_cast<osg::LightModel*>(stateAttribute));
308 osg::LightModel* lightModel;
309 lightModel = static_cast<osg::LightModel*>(stateAttribute);
312 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
313 lightModel->setAmbientIntensity(toOsg(l->scene_ambient());
315 lightModel->setAmbientIntensity(osg::Vec4(0, 0, 0, 1));
317 lightModel->setTwoSided(true);
318 lightModel->setLocalViewer(false);
320 if (mHighlights->getBoolValue()) {
321 lightModel->setColorControl(osg::LightModel::SEPARATE_SPECULAR_COLOR);
323 lightModel->setColorControl(osg::LightModel::SINGLE_COLOR);
327 SGPropertyNode_ptr mHighlights;
330 class FGFogEnableUpdateCallback : public osg::StateSet::Callback {
332 FGFogEnableUpdateCallback() :
333 mFogEnabled(fgGetNode("/sim/rendering/fog", true))
335 virtual void operator()(osg::StateSet* stateSet, osg::NodeVisitor*)
337 if (strcmp(mFogEnabled->getStringValue(), "disabled") == 0) {
338 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
340 stateSet->setMode(GL_FOG, osg::StateAttribute::ON);
344 SGPropertyNode_ptr mFogEnabled;
347 class FGFogUpdateCallback : public osg::StateAttribute::Callback {
349 virtual void operator () (osg::StateAttribute* sa, osg::NodeVisitor* nv)
351 assert(dynamic_cast<SGUpdateVisitor*>(nv));
352 assert(dynamic_cast<osg::Fog*>(sa));
353 SGUpdateVisitor* updateVisitor = static_cast<SGUpdateVisitor*>(nv);
354 osg::Fog* fog = static_cast<osg::Fog*>(sa);
355 fog->setMode(osg::Fog::EXP2);
356 fog->setColor(toOsg(updateVisitor->getFogColor()));
357 fog->setDensity(updateVisitor->getFogExp2Density());
361 // update callback for the switch node guarding that splash
362 class FGScenerySwitchCallback : public osg::NodeCallback {
364 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
366 assert(dynamic_cast<osg::Switch*>(node));
367 osg::Switch* sw = static_cast<osg::Switch*>(node);
369 bool enabled = scenery_enabled;
370 sw->setValue(0, enabled);
376 static bool scenery_enabled;
379 bool FGScenerySwitchCallback::scenery_enabled = false;
381 static osg::ref_ptr<osg::FrameStamp> mFrameStamp = new osg::FrameStamp;
382 static osg::ref_ptr<SGUpdateVisitor> mUpdateVisitor= new SGUpdateVisitor;
384 static osg::ref_ptr<osg::Group> mRealRoot = new osg::Group;
385 static osg::ref_ptr<osg::Group> mDeferredRealRoot = new osg::Group;
387 static osg::ref_ptr<osg::Group> mRoot = new osg::Group;
389 #ifdef FG_JPEG_SERVER
390 static void updateRenderer()
392 globals->get_renderer()->update();
396 FGRenderer::FGRenderer() :
398 _ambientFactor( new osg::Uniform( "fg_SunAmbientColor", osg::Vec4f() ) ),
399 _sunDiffuse( new osg::Uniform( "fg_SunDiffuseColor", osg::Vec4f() ) ),
400 _sunSpecular( new osg::Uniform( "fg_SunSpecularColor", osg::Vec4f() ) ),
401 _sunDirection( new osg::Uniform( "fg_SunDirection", osg::Vec3f() ) ),
402 _planes( new osg::Uniform( "fg_Planes", osg::Vec3f() ) ),
403 _fogColor( new osg::Uniform( "fg_FogColor", osg::Vec4f(1.0, 1.0, 1.0, 1.0) ) ),
404 _fogDensity( new osg::Uniform( "fg_FogDensity", 0.0001f ) ),
405 _shadowNumber( new osg::Uniform( "fg_ShadowNumber", (int)4 ) ),
406 _shadowDistances( new osg::Uniform( "fg_ShadowDistances", osg::Vec4f(5.0, 50.0, 500.0, 5000.0 ) ) ),
407 _depthInColor( new osg::Uniform( "fg_DepthInColor", false ) )
409 #ifdef FG_JPEG_SERVER
410 jpgRenderFrame = updateRenderer;
413 // it's not the real root, whatever that means
414 mRoot->setName("fakeRoot");
417 _cascadeFar[0] = 5.f;
418 _cascadeFar[1] = 50.f;
419 _cascadeFar[2] = 500.f;
420 _cascadeFar[3] = 5000.f;
423 FGRenderer::~FGRenderer()
425 #ifdef FG_JPEG_SERVER
426 jpgRenderFrame = NULL;
431 // Initialize various GL/view parameters
432 // XXX This should be called "preinit" or something, as it initializes
433 // critical parts of the scene graph in addition to the splash screen.
435 FGRenderer::splashinit( void ) {
436 osgViewer::Viewer* viewer = getViewer();
437 viewer->setName("osgViewer");
438 mRealRoot = dynamic_cast<osg::Group*>(viewer->getSceneData());
439 mRealRoot->setName("realRoot");
441 ref_ptr<Node> splashNode = fgCreateSplashNode();
442 if (_classicalRenderer) {
443 mRealRoot->addChild(splashNode.get());
445 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
446 ii != CameraGroup::getDefault()->camerasEnd();
449 CameraInfo* info = ii->get();
450 Camera* camera = info->getCamera(DISPLAY_CAMERA);
451 if (camera == 0) continue;
453 camera->addChild(splashNode.get());
456 mFrameStamp = viewer->getFrameStamp();
457 // Scene doesn't seem to pass the frame stamp to the update
458 // visitor automatically.
459 mUpdateVisitor->setFrameStamp(mFrameStamp.get());
460 viewer->setUpdateVisitor(mUpdateVisitor.get());
461 fgSetDouble("/sim/startup/splash-alpha", 1.0);
464 class ShadowMapSizeListener : public SGPropertyChangeListener {
466 virtual void valueChanged(SGPropertyNode* node) {
467 globals->get_renderer()->updateShadowMapSize(node->getIntValue());
471 class ShadowEnabledListener : public SGPropertyChangeListener {
473 virtual void valueChanged(SGPropertyNode* node) {
474 globals->get_renderer()->enableShadows(node->getBoolValue());
478 class ShadowNumListener : public SGPropertyChangeListener {
480 virtual void valueChanged(SGPropertyNode* node) {
481 globals->get_renderer()->updateCascadeNumber(node->getIntValue());
485 class ShadowRangeListener : public SGPropertyChangeListener {
487 virtual void valueChanged(SGPropertyNode* node) {
488 globals->get_renderer()->updateCascadeFar(node->getIndex(), node->getFloatValue());
493 FGRenderer::init( void )
495 eventHandler = new FGEventHandler();
497 sgUserDataInit( globals->get_props() );
499 _classicalRenderer = !fgGetBool("/sim/rendering/rembrandt/enabled", false);
500 _shadowMapSize = fgGetInt( "/sim/rendering/shadows/map-size", 4096 );
501 fgAddChangeListener( new ShadowMapSizeListener, "/sim/rendering/shadows/map-size" );
502 fgAddChangeListener( new ShadowEnabledListener, "/sim/rendering/shadows/enabled" );
503 ShadowRangeListener* srl = new ShadowRangeListener;
504 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[0]");
505 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[1]");
506 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[2]");
507 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[3]");
508 fgAddChangeListener(new ShadowNumListener, "/sim/rendering/shadows/num-cascades");
509 _numCascades = fgGetInt("/sim/rendering/shadows/num-cascades", 4);
510 _cascadeFar[0] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[0]", 5.0f);
511 _cascadeFar[1] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[1]", 50.0f);
512 _cascadeFar[2] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[2]", 500.0f);
513 _cascadeFar[3] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[3]", 5000.0f);
514 updateCascadeNumber(_numCascades);
515 updateCascadeFar(0, _cascadeFar[0]);
516 updateCascadeFar(1, _cascadeFar[1]);
517 updateCascadeFar(2, _cascadeFar[2]);
518 updateCascadeFar(3, _cascadeFar[3]);
519 _useColorForDepth = fgGetBool( "/sim/rendering/rembrandt/use-color-for-depth", false );
520 _depthInColor->set( _useColorForDepth );
522 _renderer = fgGetString("/sim/rendering/rembrandt/renderer", "default-pipeline");
523 if (!_classicalRenderer)
524 _pipeline = makeRenderingPipeline(_renderer, 0);
525 _scenery_loaded = fgGetNode("/sim/sceneryloaded", true);
526 _position_finalized = fgGetNode("/sim/position-finalized", true);
528 _panel_hotspots = fgGetNode("/sim/panel-hotspots", true);
529 _virtual_cockpit = fgGetNode("/sim/virtual-cockpit", true);
531 _sim_delta_sec = fgGetNode("/sim/time/delta-sec", true);
533 _xsize = fgGetNode("/sim/startup/xsize", true);
534 _ysize = fgGetNode("/sim/startup/ysize", true);
535 _splash_alpha = fgGetNode("/sim/startup/splash-alpha", true);
537 _skyblend = fgGetNode("/sim/rendering/skyblend", true);
538 _point_sprites = fgGetNode("/sim/rendering/point-sprites", true);
539 _enhanced_lighting = fgGetNode("/sim/rendering/enhanced-lighting", true);
540 _distance_attenuation = fgGetNode("/sim/rendering/distance-attenuation", true);
541 _horizon_effect = fgGetNode("/sim/rendering/horizon-effect", true);
542 _textures = fgGetNode("/sim/rendering/textures", true);
544 _altitude_ft = fgGetNode("/position/altitude-ft", true);
546 _cloud_status = fgGetNode("/environment/clouds/status", true);
547 _visibility_m = fgGetNode("/environment/visibility-m", true);
549 bool use_point_sprites = _point_sprites->getBoolValue();
550 bool enhanced_lighting = _enhanced_lighting->getBoolValue();
551 bool distance_attenuation = _distance_attenuation->getBoolValue();
553 SGConfigureDirectionalLights( use_point_sprites, enhanced_lighting,
554 distance_attenuation );
556 if (const char* tc = fgGetString("/sim/rendering/texture-compression", NULL)) {
557 if (strcmp(tc, "false") == 0 || strcmp(tc, "off") == 0 ||
558 strcmp(tc, "0") == 0 || strcmp(tc, "no") == 0 ||
559 strcmp(tc, "none") == 0) {
560 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::DoNotUseCompression);
561 } else if (strcmp(tc, "arb") == 0) {
562 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseARBCompression);
563 } else if (strcmp(tc, "dxt1") == 0) {
564 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT1Compression);
565 } else if (strcmp(tc, "dxt3") == 0) {
566 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT3Compression);
567 } else if (strcmp(tc, "dxt5") == 0) {
568 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT5Compression);
570 SG_LOG(SG_VIEW, SG_WARN, "Unknown texture compression setting!");
574 // create sky, but can't build until setupView, since we depend
575 // on other subsystems to be inited, eg Ephemeris
578 SGPath texture_path(globals->get_fg_root());
579 texture_path.append("Textures");
580 texture_path.append("Sky");
581 for (int i = 0; i < FGEnvironmentMgr::MAX_CLOUD_LAYERS; i++) {
582 SGCloudLayer * layer = new SGCloudLayer(texture_path.str());
583 _sky->add_cloud_layer(layer);
586 _sky->texture_path( texture_path.str() );
588 if (!_classicalRenderer) {
589 eventHandler->setChangeStatsCameraRenderOrder( true );
590 _sky->set_minimum_sky_visibility( 0.0 ); // A black sky appears for below that
594 void installCullVisitor(Camera* camera)
596 osgViewer::Renderer* renderer
597 = static_cast<osgViewer::Renderer*>(camera->getRenderer());
598 for (int i = 0; i < 2; ++i) {
599 osgUtil::SceneView* sceneView = renderer->getSceneView(i);
601 osg::ref_ptr<osgUtil::CullVisitor::Identifier> identifier;
602 identifier = sceneView->getCullVisitor()->getIdentifier();
603 sceneView->setCullVisitor(new simgear::EffectCullVisitor);
604 sceneView->getCullVisitor()->setIdentifier(identifier.get());
606 identifier = sceneView->getCullVisitorLeft()->getIdentifier();
607 sceneView->setCullVisitorLeft(sceneView->getCullVisitor()->clone());
608 sceneView->getCullVisitorLeft()->setIdentifier(identifier.get());
610 identifier = sceneView->getCullVisitorRight()->getIdentifier();
611 sceneView->setCullVisitorRight(sceneView->getCullVisitor()->clone());
612 sceneView->getCullVisitorRight()->setIdentifier(identifier.get());
618 FGRenderer::buildRenderingPipeline(CameraGroup* cgroup, unsigned flags, Camera* camera,
620 const Matrix& projection,
621 osg::GraphicsContext* gc,
622 bool useMasterSceneData)
624 CameraInfo* info = 0;
625 if (!_classicalRenderer && (flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0)
626 info = buildDeferredPipeline( cgroup, flags, camera, view, projection, gc );
631 if ((flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0)
632 _classicalRenderer = true;
633 return buildClassicalPipeline( cgroup, flags, camera, view, projection, useMasterSceneData );
638 FGRenderer::buildClassicalPipeline(CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
639 const osg::Matrix& view,
640 const osg::Matrix& projection,
641 bool useMasterSceneData)
643 CameraInfo* info = new CameraInfo(flags);
644 // The camera group will always update the camera
645 camera->setReferenceFrame(Transform::ABSOLUTE_RF);
646 info->name = "classic";
648 Camera* farCamera = 0;
649 if ((flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0) {
650 farCamera = new Camera;
651 farCamera->setName("farCamera");
652 farCamera->setAllowEventFocus(camera->getAllowEventFocus());
653 farCamera->setGraphicsContext(camera->getGraphicsContext());
654 farCamera->setCullingMode(camera->getCullingMode());
655 farCamera->setInheritanceMask(camera->getInheritanceMask());
656 farCamera->setReferenceFrame(Transform::ABSOLUTE_RF);
657 // Each camera's viewport is written when the window is
658 // resized; if the the viewport isn't copied here, it gets updated
659 // twice and ends up with the wrong value.
660 farCamera->setViewport(simgear::clone(camera->getViewport()));
661 farCamera->setDrawBuffer(camera->getDrawBuffer());
662 farCamera->setReadBuffer(camera->getReadBuffer());
663 farCamera->setRenderTargetImplementation(
664 camera->getRenderTargetImplementation());
665 const Camera::BufferAttachmentMap& bufferMap
666 = camera->getBufferAttachmentMap();
667 if (bufferMap.count(Camera::COLOR_BUFFER) != 0) {
669 Camera::COLOR_BUFFER,
670 bufferMap.find(Camera::COLOR_BUFFER)->second._texture.get());
672 cgroup->getViewer()->addSlave(farCamera, projection, view, useMasterSceneData);
673 installCullVisitor(farCamera);
674 int farSlaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
675 info->addCamera( FAR_CAMERA, farCamera, farSlaveIndex );
676 farCamera->setRenderOrder(Camera::POST_RENDER, farSlaveIndex);
677 camera->setCullMask(camera->getCullMask() & ~simgear::BACKGROUND_BIT);
678 camera->setClearMask(GL_DEPTH_BUFFER_BIT);
680 cgroup->getViewer()->addSlave(camera, projection, view, useMasterSceneData);
681 installCullVisitor(camera);
682 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
683 info->addCamera( MAIN_CAMERA, camera, slaveIndex );
684 camera->setRenderOrder(Camera::POST_RENDER, slaveIndex);
685 cgroup->addCamera(info);
689 class FGDeferredRenderingCameraCullCallback : public osg::NodeCallback {
691 FGDeferredRenderingCameraCullCallback( const std::string& k, CameraInfo* i, bool nd = false ) : kind( k ), info( i ), needsDuDv(nd) {}
692 virtual void operator()( osg::Node *n, osg::NodeVisitor *nv) {
693 simgear::EffectCullVisitor* cv = dynamic_cast<simgear::EffectCullVisitor*>(nv);
694 osg::Camera* camera = static_cast<osg::Camera*>(n);
696 cv->clearBufferList();
697 for (RenderBufferMap::iterator ii = info->buffers.begin(); ii != info->buffers.end(); ++ii) {
698 cv->addBuffer(ii->first, ii->second.texture);
701 if ( !info->getRenderStageInfo(kind).fullscreen )
702 info->setMatrices( camera );
705 osg::Matrix projInverse;
706 info->projInverse->get( projInverse );
708 osg::Vec4 p0 = osg::Vec4( -1.0, -1.0, 0.0, 1.0 ) * projInverse;
709 info->du->set( osg::Vec4( 1.0, -1.0, 0.0, 1.0 ) * projInverse - p0 );
710 info->dv->set( osg::Vec4( -1.0, 1.0, 0.0, 1.0 ) * projInverse - p0 );
713 cv->traverse( *camera );
715 if ( kind == GEOMETRY_CAMERA ) {
716 // Remove transparent bins. They will be renderer in the additional light stage (side effect)
717 osgUtil::RenderStage* renderStage = cv->getRenderStage();
718 osgUtil::RenderBin::RenderBinList& rbl = renderStage->getRenderBinList();
719 for (osgUtil::RenderBin::RenderBinList::iterator rbi = rbl.begin(); rbi != rbl.end(); ) {
720 if (rbi->second->getSortMode() == osgUtil::RenderBin::SORT_BACK_TO_FRONT) {
726 } else if ( kind == LIGHTING_CAMERA ) {
727 osg::ref_ptr<osg::Camera> mainShadowCamera = info->getCamera( SHADOW_CAMERA );
728 if (mainShadowCamera.valid()) {
729 osg::Switch* grp = mainShadowCamera->getChild(0)->asSwitch();
730 for (int i = 0; i < 4; ++i ) {
731 if (!grp->getValue(i))
734 osg::Camera* cascadeCam = static_cast<osg::Camera*>( grp->getChild(i) );
735 osg::Matrixf shadowMatrix = camera->getInverseViewMatrix() *
736 cascadeCam->getViewMatrix() *
737 cascadeCam->getProjectionMatrix() *
738 osg::Matrix::translate(1.0, 1.0, 1.0) *
739 osg::Matrix::scale(0.5f, 0.5f, 0.5f);
741 info->shadowMatrix[i]->set( shadowMatrix );
753 osg::Texture2D* buildDeferredBuffer(GLint internalFormat, GLenum sourceFormat, GLenum sourceType, GLenum wrapMode, bool shadowComparison = false)
755 osg::Texture2D* tex = new osg::Texture2D;
756 tex->setResizeNonPowerOfTwoHint( false );
757 tex->setInternalFormat( internalFormat );
758 tex->setShadowComparison(shadowComparison);
759 if (shadowComparison) {
760 tex->setShadowTextureMode(osg::Texture2D::LUMINANCE);
761 tex->setBorderColor(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
763 tex->setSourceFormat(sourceFormat);
764 tex->setSourceType(sourceType);
765 tex->setFilter( osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR );
766 tex->setFilter( osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR );
767 tex->setWrap( osg::Texture::WRAP_S, (osg::Texture::WrapMode)wrapMode );
768 tex->setWrap( osg::Texture::WRAP_T, (osg::Texture::WrapMode)wrapMode );
772 void attachBufferToCamera( CameraInfo* info, osg::Camera* camera, osg::Camera::BufferComponent c, const std::string& ck, const std::string& bk )
774 camera->attach( c, info->getBuffer(bk) );
775 info->getRenderStageInfo(ck).buffers.insert( std::make_pair( c, bk ) );
778 void buildAttachments(CameraInfo* info, osg::Camera* camera, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments) {
779 BOOST_FOREACH(ref_ptr<FGRenderingPipeline::Attachment> attachment, attachments) {
780 if (attachment->valid())
781 attachBufferToCamera( info, camera, attachment->component, name, attachment->buffer );
785 osg::Camera* FGRenderer::buildDeferredGeometryCamera( CameraInfo* info, osg::GraphicsContext* gc, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments )
787 osg::Camera* camera = new osg::Camera;
788 info->addCamera(name, camera );
790 camera->setCullMask( ~simgear::MODELLIGHT_BIT );
791 camera->setName( "GeometryC" );
792 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
793 camera->setGraphicsContext( gc );
794 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( name, info ) );
795 camera->setClearMask( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
796 camera->setClearColor( osg::Vec4( 0., 0., 0., 0. ) );
797 camera->setClearDepth( 1.0 );
798 camera->setColorMask(true, true, true, true);
799 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
800 camera->setRenderOrder(osg::Camera::NESTED_RENDER, 0);
801 camera->setViewport( new osg::Viewport );
802 buildAttachments(info, camera, name, attachments);
803 camera->setDrawBuffer(GL_FRONT);
804 camera->setReadBuffer(GL_FRONT);
806 osg::StateSet* ss = camera->getOrCreateStateSet();
807 ss->addUniform( _depthInColor );
809 camera->addChild( mDeferredRealRoot.get() );
814 static void setShadowCascadeStateSet( osg::Camera* cam ) {
815 osg::StateSet* ss = cam->getOrCreateStateSet();
816 ss->setAttribute( new osg::PolygonOffset( 1.1f, 5.0f ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
817 ss->setMode( GL_POLYGON_OFFSET_FILL, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
818 ss->setRenderBinDetails( 0, "RenderBin", osg::StateSet::OVERRIDE_RENDERBIN_DETAILS );
819 ss->setAttributeAndModes( new osg::AlphaFunc( osg::AlphaFunc::GREATER, 0.05 ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
820 ss->setAttributeAndModes( new osg::ColorMask( false, false, false, false ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
821 ss->setAttributeAndModes( new osg::CullFace( osg::CullFace::FRONT ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
822 osg::Program* program = new osg::Program;
823 ss->setAttribute( program, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
824 ss->setMode( GL_LIGHTING, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
825 ss->setMode( GL_BLEND, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
826 //ss->setTextureMode( 0, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
827 ss->setTextureMode( 0, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
828 ss->setTextureMode( 1, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
829 ss->setTextureMode( 1, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
830 ss->setTextureMode( 2, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
831 ss->setTextureMode( 2, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
834 static osg::Camera* createShadowCascadeCamera( int no, int cascadeSize ) {
835 osg::Camera* cascadeCam = new osg::Camera;
836 setShadowCascadeStateSet( cascadeCam );
838 std::ostringstream oss;
839 oss << "CascadeCamera" << (no + 1);
840 cascadeCam->setName( oss.str() );
841 cascadeCam->setClearMask(0);
842 cascadeCam->setCullMask( simgear::CASTSHADOW_BIT );
843 cascadeCam->setCullingMode( cascadeCam->getCullingMode() | osg::CullSettings::SMALL_FEATURE_CULLING );
844 cascadeCam->setAllowEventFocus(false);
845 cascadeCam->setReferenceFrame(osg::Transform::ABSOLUTE_RF_INHERIT_VIEWPOINT);
846 cascadeCam->setRenderOrder(osg::Camera::NESTED_RENDER);
847 cascadeCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
848 cascadeCam->setViewport( int( no / 2 ) * cascadeSize, (no & 1) * cascadeSize, cascadeSize, cascadeSize );
852 osg::Camera* FGRenderer::buildDeferredShadowCamera( CameraInfo* info, osg::GraphicsContext* gc, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments )
854 osg::Camera* mainShadowCamera = new osg::Camera;
855 info->addCamera(name, mainShadowCamera, 0.0f );
857 mainShadowCamera->setName( "ShadowC" );
858 mainShadowCamera->setClearMask( GL_DEPTH_BUFFER_BIT );
859 mainShadowCamera->setClearDepth( 1.0 );
860 mainShadowCamera->setAllowEventFocus(false);
861 mainShadowCamera->setGraphicsContext(gc);
862 mainShadowCamera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
863 buildAttachments(info, mainShadowCamera, name, attachments);
864 mainShadowCamera->setComputeNearFarMode(osg::Camera::DO_NOT_COMPUTE_NEAR_FAR);
865 mainShadowCamera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
866 mainShadowCamera->setProjectionMatrix(osg::Matrix::identity());
867 mainShadowCamera->setCullingMode( osg::CullSettings::NO_CULLING );
868 mainShadowCamera->setViewport( 0, 0, _shadowMapSize, _shadowMapSize );
869 mainShadowCamera->setDrawBuffer(GL_FRONT);
870 mainShadowCamera->setReadBuffer(GL_FRONT);
871 mainShadowCamera->setRenderOrder(Camera::NESTED_RENDER, 1);
873 osg::Switch* shadowSwitch = new osg::Switch;
874 mainShadowCamera->addChild( shadowSwitch );
876 for (int i = 0; i < 4; ++i ) {
877 osg::Camera* cascadeCam = createShadowCascadeCamera( i, _shadowMapSize/2 );
878 cascadeCam->addChild( mDeferredRealRoot.get() );
879 shadowSwitch->addChild( cascadeCam );
881 if (fgGetBool("/sim/rendering/shadows/enabled", true))
882 shadowSwitch->setAllChildrenOn();
884 shadowSwitch->setAllChildrenOff();
886 return mainShadowCamera;
889 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)
891 osg::Camera* cascade = static_cast<osg::Camera*>( grp->getChild(idx) );
892 osg::Matrixd &viewMatrix = cascade->getViewMatrix();
893 osg::Matrixd &projectionMatrix = cascade->getProjectionMatrix();
895 osg::BoundingSphere bs;
896 bs.expandBy(osg::Vec3(left,bottom,-zNear) * f1);
897 bs.expandBy(osg::Vec3(right,top,-zNear) * f2);
898 bs.expandBy(osg::Vec3(left,bottom,-zNear) * f2);
899 bs.expandBy(osg::Vec3(right,top,-zNear) * f1);
901 osg::Vec4 aim = osg::Vec4(bs.center(), 1.0) * camera->getInverseViewMatrix();
903 projectionMatrix.makeOrtho( -bs.radius(), bs.radius(), -bs.radius(), bs.radius(), 1., 15000.0 );
904 osg::Vec3 position( aim.x(), aim.y(), aim.z() );
905 viewMatrix.makeLookAt( position + (getSunDirection() * 10000.0), position, position );
908 osg::Vec3 FGRenderer::getSunDirection() const
911 _sunDirection->get( val );
915 void FGRenderer::updateShadowCamera(const CameraInfo* info, const osg::Vec3d& position)
917 ref_ptr<Camera> mainShadowCamera = info->getCamera( SHADOW_CAMERA );
918 if (mainShadowCamera.valid()) {
919 ref_ptr<Switch> shadowSwitch = mainShadowCamera->getChild( 0 )->asSwitch();
920 osg::Vec3d up = position,
921 dir = getSunDirection();
924 // cos(100 deg) == -0.17
925 if (up * dir < -0.17 || !fgGetBool("/sim/rendering/shadows/enabled", true)) {
926 shadowSwitch->setAllChildrenOff();
928 double left,right,bottom,top,zNear,zFar;
929 ref_ptr<Camera> camera = info->getCamera(GEOMETRY_CAMERA);
930 camera->getProjectionMatrix().getFrustum(left,right,bottom,top,zNear,zFar);
932 shadowSwitch->setAllChildrenOn();
933 if (_numCascades == 1) {
934 osg::Camera* cascadeCam = static_cast<osg::Camera*>( shadowSwitch->getChild(0) );
935 cascadeCam->setViewport( 0, 0, _shadowMapSize, _shadowMapSize );
937 for (int no = 0; no < 4; ++no) {
938 osg::Camera* cascadeCam = static_cast<osg::Camera*>( shadowSwitch->getChild(no) );
939 cascadeCam->setViewport( int( no / 2 ) * (_shadowMapSize/2), (no & 1) * (_shadowMapSize/2), (_shadowMapSize/2), (_shadowMapSize/2) );
942 updateShadowCascade(info, camera, shadowSwitch, 0, left, right, bottom, top, zNear, 1.0, _cascadeFar[0]/zNear);
943 if (_numCascades > 1) {
944 shadowSwitch->setValue(1, true);
945 updateShadowCascade(info, camera, shadowSwitch, 1, left, right, bottom, top, zNear, _cascadeFar[0]/zNear, _cascadeFar[1]/zNear);
947 shadowSwitch->setValue(1, false);
949 if (_numCascades > 2) {
950 shadowSwitch->setValue(2, true);
951 updateShadowCascade(info, camera, shadowSwitch, 2, left, right, bottom, top, zNear, _cascadeFar[1]/zNear, _cascadeFar[2]/zNear);
953 shadowSwitch->setValue(2, false);
955 if (_numCascades > 3) {
956 shadowSwitch->setValue(3, true);
957 updateShadowCascade(info, camera, shadowSwitch, 3, left, right, bottom, top, zNear, _cascadeFar[2]/zNear, _cascadeFar[3]/zNear);
959 shadowSwitch->setValue(3, false);
962 osg::Matrixd &viewMatrix = mainShadowCamera->getViewMatrix();
964 osg::Vec4 aim = osg::Vec4( 0.0, 0.0, 0.0, 1.0 ) * camera->getInverseViewMatrix();
966 osg::Vec3 position( aim.x(), aim.y(), aim.z() );
967 viewMatrix.makeLookAt( position, position + (getSunDirection() * 10000.0), position );
973 void FGRenderer::updateShadowMapSize(int mapSize)
975 if ( ((~( mapSize-1 )) & mapSize) != mapSize ) {
976 SG_LOG( SG_VIEW, SG_ALERT, "Map size is not a power of two" );
979 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
980 ii != CameraGroup::getDefault()->camerasEnd();
983 CameraInfo* info = ii->get();
984 Camera* camera = info->getCamera(SHADOW_CAMERA);
985 if (camera == 0) continue;
987 Texture2D* tex = info->getBuffer("shadow");
988 if (tex == 0) continue;
990 tex->setTextureSize( mapSize, mapSize );
991 tex->dirtyTextureObject();
993 Viewport* vp = camera->getViewport();
994 vp->width() = mapSize;
995 vp->height() = mapSize;
997 osgViewer::Renderer* renderer
998 = static_cast<osgViewer::Renderer*>(camera->getRenderer());
999 for (int i = 0; i < 2; ++i) {
1000 osgUtil::SceneView* sceneView = renderer->getSceneView(i);
1001 sceneView->getRenderStage()->setFrameBufferObject(0);
1002 sceneView->getRenderStage()->setCameraRequiresSetUp(true);
1003 if (sceneView->getRenderStageLeft()) {
1004 sceneView->getRenderStageLeft()->setFrameBufferObject(0);
1005 sceneView->getRenderStageLeft()->setCameraRequiresSetUp(true);
1007 if (sceneView->getRenderStageRight()) {
1008 sceneView->getRenderStageRight()->setFrameBufferObject(0);
1009 sceneView->getRenderStageRight()->setCameraRequiresSetUp(true);
1013 int cascadeSize = mapSize / 2;
1014 Group* grp = camera->getChild(0)->asGroup();
1015 for (int i = 0; i < 4; ++i ) {
1016 Camera* cascadeCam = static_cast<Camera*>( grp->getChild(i) );
1017 cascadeCam->setViewport( int( i / 2 ) * cascadeSize, (i & 1) * cascadeSize, cascadeSize, cascadeSize );
1020 _shadowMapSize = mapSize;
1024 void FGRenderer::enableShadows(bool enabled)
1026 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
1027 ii != CameraGroup::getDefault()->camerasEnd();
1030 CameraInfo* info = ii->get();
1031 Camera* camera = info->getCamera(SHADOW_CAMERA);
1032 if (camera == 0) continue;
1034 osg::Switch* shadowSwitch = camera->getChild(0)->asSwitch();
1036 shadowSwitch->setAllChildrenOn();
1038 shadowSwitch->setAllChildrenOff();
1042 void FGRenderer::updateCascadeFar(int index, float far_m)
1044 if (index < 0 || index > 3)
1046 _cascadeFar[index] = far_m;
1047 _shadowDistances->set( osg::Vec4f(_cascadeFar[0], _cascadeFar[1], _cascadeFar[2], _cascadeFar[3]) );
1050 void FGRenderer::updateCascadeNumber(size_t num)
1052 if (num < 1 || num > 4)
1055 _shadowNumber->set( (int)_numCascades );
1058 class DebugPassListener : public SGPropertyChangeListener {
1060 DebugPassListener(osg::Switch* sw, int i) : _switch(sw), _index(i) {}
1061 virtual void valueChanged(SGPropertyNode* node) {
1062 _switch->setValue(_index, node->getBoolValue());
1066 osg::ref_ptr<osg::Switch> _switch;
1071 FGRenderer::buildDeferredLightingCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc, const FGRenderingPipeline::Stage* stage )
1073 osg::Camera* camera = new osg::Camera;
1074 info->addCamera(stage->name, camera );
1076 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( stage->name, info ) );
1077 camera->setAllowEventFocus(false);
1078 camera->setGraphicsContext(gc);
1079 camera->setViewport(new Viewport);
1080 camera->setName(stage->name+"C");
1081 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1082 camera->setRenderOrder(osg::Camera::NESTED_RENDER, stage->orderNum);
1083 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
1084 camera->setViewport( new osg::Viewport );
1085 buildAttachments(info, camera, stage->name, stage->attachments);
1086 camera->setDrawBuffer(GL_FRONT);
1087 camera->setReadBuffer(GL_FRONT);
1088 camera->setClearColor( osg::Vec4( 0.5, 0.5, 0.5, 1. ) );
1089 camera->setClearMask( GL_COLOR_BUFFER_BIT );
1090 osg::StateSet* ss = camera->getOrCreateStateSet();
1091 ss->setAttribute( new osg::Depth(osg::Depth::LESS, 0.0, 1.0, false) );
1092 ss->addUniform( _depthInColor );
1094 osg::Switch* lightingGroup = new osg::Switch;
1096 BOOST_FOREACH( osg::ref_ptr<FGRenderingPipeline::Pass> pass, stage->passes ) {
1097 ref_ptr<Node> node = buildPass(info, pass);
1099 lightingGroup->addChild(node);
1100 if (!pass->debugProperty.empty()) {
1101 lightingGroup->setValue(lightingGroup->getNumChildren()-1, fgGetBool(pass->debugProperty));
1102 fgAddChangeListener(new DebugPassListener(lightingGroup, lightingGroup->getNumChildren()-1), pass->debugProperty);
1107 camera->addChild( lightingGroup );
1113 FGRenderer::buildDeferredPipeline(CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
1114 const osg::Matrix& view,
1115 const osg::Matrix& projection,
1116 osg::GraphicsContext* gc)
1118 return buildCameraFromRenderingPipeline(_pipeline, cgroup, flags, camera, view, projection, gc);
1122 FGRenderer::buildDeferredFullscreenCamera( flightgear::CameraInfo* info, const FGRenderingPipeline::Pass* pass )
1124 osg::Camera* camera = new osg::Camera;
1126 camera->setClearMask( 0 );
1127 camera->setAllowEventFocus(false);
1128 camera->setName(pass->name+"C");
1129 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1130 camera->setRenderOrder(osg::Camera::NESTED_RENDER, pass->orderNum);
1131 camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1132 camera->setViewMatrix(osg::Matrix::identity());
1133 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1135 osg::StateSet* ss = camera->getOrCreateStateSet();
1136 ss->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1137 ss->addUniform( info->projInverse );
1138 ss->addUniform( info->viewInverse );
1139 ss->addUniform( info->view );
1140 ss->addUniform( info->bufferSize );
1141 ss->addUniform( info->worldPosCart );
1142 ss->addUniform( info->worldPosGeod );
1143 ss->addUniform( info->shadowMatrix[0] );
1144 ss->addUniform( info->shadowMatrix[1] );
1145 ss->addUniform( info->shadowMatrix[2] );
1146 ss->addUniform( info->shadowMatrix[3] );
1147 ss->addUniform( _ambientFactor );
1148 ss->addUniform( _sunDiffuse );
1149 ss->addUniform( _sunSpecular );
1150 ss->addUniform( _sunDirection );
1151 ss->addUniform( _planes );
1152 ss->addUniform( _shadowNumber );
1153 ss->addUniform( _shadowDistances );
1154 ss->addUniform( _fogColor );
1155 ss->addUniform( _fogDensity );
1157 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1158 g->setUseDisplayList(false);
1159 simgear::EffectGeode* eg = new simgear::EffectGeode;
1160 osg::ref_ptr<SGReaderWriterOptions> opt;
1161 opt = SGReaderWriterOptions::fromPath(globals->get_fg_root());
1162 opt->setPropertyNode(globals->get_props());
1163 simgear::Effect* effect = simgear::makeEffect(pass->effect, true, opt.get());
1165 eg->setEffect( effect );
1168 eg->setName(pass->name+"Quad");
1169 eg->setCullingActive(false);
1171 camera->addChild(eg);
1177 FGRenderer::buildDeferredFullscreenCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc, const FGRenderingPipeline::Stage* stage )
1179 osg::Camera* camera = buildDeferredFullscreenCamera(info, static_cast<const FGRenderingPipeline::Pass*>(stage));
1180 info->addCamera(stage->name, camera, stage->scaleFactor, true);
1182 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback(stage->name, info, stage->needsDuDv) );
1183 camera->setGraphicsContext(gc);
1184 camera->setViewport(new Viewport);
1185 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
1186 buildAttachments(info, camera, stage->name, stage->attachments);
1187 camera->setDrawBuffer(GL_FRONT);
1188 camera->setReadBuffer(GL_FRONT);
1189 camera->setClearColor( osg::Vec4( 1., 1., 1., 1. ) );
1190 camera->setClearMask( GL_COLOR_BUFFER_BIT );
1191 camera->setViewMatrix(osg::Matrix::identity());
1192 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1194 osg::StateSet* ss = camera->getOrCreateStateSet();
1195 if (stage->needsDuDv) {
1196 ss->addUniform( info->du );
1197 ss->addUniform( info->dv );
1204 FGRenderer::buildDeferredDisplayCamera( osg::Camera* camera, flightgear::CameraInfo* info, const FGRenderingPipeline::Stage* stage, osg::GraphicsContext* gc )
1206 camera->setName( "DisplayC" );
1207 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( stage->name, info ) );
1208 camera->setReferenceFrame(Transform::ABSOLUTE_RF);
1209 camera->setAllowEventFocus(false);
1210 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1211 g->setUseDisplayList(false); //DEBUG
1212 simgear::EffectGeode* eg = new simgear::EffectGeode;
1213 osg::ref_ptr<SGReaderWriterOptions> opt;
1214 opt = SGReaderWriterOptions::fromPath(globals->get_fg_root());
1215 opt->setPropertyNode(globals->get_props());
1216 simgear::Effect* effect = simgear::makeEffect(stage->effect, true, opt.get());
1218 SG_LOG(SG_VIEW, SG_ALERT, stage->effect + " not found");
1221 eg->setEffect(effect);
1222 eg->setCullingActive(false);
1224 camera->setViewMatrix(osg::Matrix::identity());
1225 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1226 camera->addChild(eg);
1228 osg::StateSet* ss = camera->getOrCreateStateSet();
1229 ss->addUniform( _depthInColor );
1230 ss->addUniform( info->projInverse );
1231 ss->addUniform( info->viewInverse );
1232 ss->addUniform( info->view );
1233 ss->addUniform( info->bufferSize );
1234 ss->addUniform( info->worldPosCart );
1235 ss->addUniform( info->worldPosGeod );
1236 ss->addUniform( info->shadowMatrix[0] );
1237 ss->addUniform( info->shadowMatrix[1] );
1238 ss->addUniform( info->shadowMatrix[2] );
1239 ss->addUniform( info->shadowMatrix[3] );
1240 ss->addUniform( _ambientFactor );
1241 ss->addUniform( _sunDiffuse );
1242 ss->addUniform( _sunSpecular );
1243 ss->addUniform( _sunDirection );
1244 ss->addUniform( _planes );
1245 ss->addUniform( _shadowNumber );
1246 ss->addUniform( _shadowDistances );
1247 ss->addUniform( _fogColor );
1248 ss->addUniform( _fogDensity );
1252 FGRenderer::buildStage(CameraInfo* info,
1253 FGRenderingPipeline::Stage* stage,
1254 CameraGroup* cgroup,
1255 osg::Camera* mainCamera,
1256 const osg::Matrix& view, const osg::Matrix& projection, osg::GraphicsContext* gc)
1258 if (!stage->valid())
1261 ref_ptr<Camera> camera;
1262 bool needOffsets = false;
1263 if (stage->type == "geometry") {
1264 camera = buildDeferredGeometryCamera(info, gc, stage->name, stage->attachments);
1266 } else if (stage->type == "lighting") {
1267 camera = buildDeferredLightingCamera(info, gc, stage);
1269 } else if (stage->type == "shadow")
1270 camera = buildDeferredShadowCamera(info, gc, stage->name, stage->attachments);
1271 else if (stage->type == "fullscreen")
1272 camera = buildDeferredFullscreenCamera(info, gc, stage);
1273 else if (stage->type == "display") {
1274 camera = mainCamera;
1275 buildDeferredDisplayCamera(camera, info, stage, gc);
1277 throw sg_exception("Stage type is not supported");
1280 cgroup->getViewer()->addSlave(camera, projection, view, false);
1282 cgroup->getViewer()->addSlave(camera, false);
1283 installCullVisitor(camera);
1284 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1285 if (stage->type == "display")
1286 info->addCamera( stage->type, camera, slaveIndex, true );
1287 info->getRenderStageInfo(stage->name).slaveIndex = slaveIndex;
1291 FGRenderer::buildLightingSkyCloudsPass(FGRenderingPipeline::Pass* pass)
1293 Group* group = new Group;
1294 group->setName("skyCloudsGroup");
1295 group->setNodeMask(simgear::BACKGROUND_BIT);
1297 StateSet* ss = group->getOrCreateStateSet();
1298 ss->setAttributeAndModes( new osg::ColorMask( true, true, true, false ), osg::StateAttribute::ON );
1299 group->addChild( _sky->getPreRoot() );
1300 group->addChild( _sky->getCloudRoot() );
1305 FGRenderer::buildLightingLightsPass(CameraInfo* info, FGRenderingPipeline::Pass* pass)
1307 osg::Camera* lightCam = new osg::Camera;
1308 StateSet* ss = lightCam->getOrCreateStateSet();
1309 ss->addUniform( _planes );
1310 ss->addUniform( info->bufferSize );
1311 ss->addUniform( _fogColor );
1312 ss->addUniform( _fogDensity );
1313 lightCam->setName( "LightCamera" );
1314 lightCam->setClearMask(0);
1315 lightCam->setAllowEventFocus(false);
1316 lightCam->setReferenceFrame(osg::Transform::RELATIVE_RF);
1317 lightCam->setRenderOrder(osg::Camera::NESTED_RENDER,pass->orderNum);
1318 lightCam->setViewMatrix(osg::Matrix::identity());
1319 lightCam->setProjectionMatrix(osg::Matrix::identity());
1320 lightCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1321 lightCam->setCullMask( simgear::MODELLIGHT_BIT | simgear::PANEL2D_BIT | simgear::PERMANENTLIGHT_BIT);
1322 lightCam->setInheritanceMask( osg::CullSettings::ALL_VARIABLES & ~osg::CullSettings::CULL_MASK );
1323 lightCam->addChild( mDeferredRealRoot.get() );
1329 FGRenderer::buildPass(CameraInfo* info, FGRenderingPipeline::Pass* pass)
1335 if (pass->type == "sky-clouds")
1336 node = buildLightingSkyCloudsPass(pass);
1337 else if (pass->type == "fullscreen")
1338 node = buildDeferredFullscreenCamera(info, pass);
1339 else if (pass->type == "lights")
1340 node = buildLightingLightsPass(info, pass);
1342 throw sg_exception("Pass type is not supported");
1344 return node.release();
1348 FGRenderer::buildBuffers(FGRenderingPipeline* rpipe, CameraInfo* info)
1350 for (size_t i = 0; i < rpipe->buffers.size(); ++i) {
1351 osg::ref_ptr<FGRenderingPipeline::Buffer> buffer = rpipe->buffers[i];
1352 if (buffer->valid()) {
1353 bool fullscreen = buffer->width == -1 && buffer->height == -1;
1354 info->addBuffer(buffer->name, buildDeferredBuffer( buffer->internalFormat,
1355 buffer->sourceFormat,
1358 buffer->shadowComparison),
1359 fullscreen ? buffer->scaleFactor : 0.0f);
1361 info->getBuffer(buffer->name)->setTextureSize(buffer->width, buffer->height);
1367 CameraInfo* FGRenderer::buildCameraFromRenderingPipeline(FGRenderingPipeline* rpipe, CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
1368 const osg::Matrix& view, const osg::Matrix& projection, osg::GraphicsContext* gc)
1370 CameraInfo* info = new CameraInfo(flags);
1371 buildBuffers(rpipe, info);
1373 for (size_t i = 0; i < rpipe->stages.size(); ++i) {
1374 osg::ref_ptr<FGRenderingPipeline::Stage> stage = rpipe->stages[i];
1375 buildStage(info, stage, cgroup, camera, view, projection, gc);
1378 cgroup->addCamera(info);
1384 FGRenderer::setupView( void )
1386 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1387 osg::initNotifyLevel();
1389 // The number of polygon-offset "units" to place between layers. In
1390 // principle, one is supposed to be enough. In practice, I find that
1391 // my hardware/driver requires many more.
1392 osg::PolygonOffset::setUnitsMultiplier(1);
1393 osg::PolygonOffset::setFactorMultiplier(1);
1396 // The sun and moon diameters are scaled down numbers of the
1397 // actual diameters. This was needed to fit both the sun and the
1398 // moon within the distance to the far clip plane.
1399 // Moon diameter: 3,476 kilometers
1400 // Sun diameter: 1,390,000 kilometers
1401 osg::ref_ptr<SGReaderWriterOptions> opt;
1402 opt = SGReaderWriterOptions::fromPath(globals->get_fg_root());
1403 opt->setPropertyNode(globals->get_props());
1404 _sky->build( 80000.0, 80000.0,
1406 *globals->get_ephem(),
1407 fgGetNode("/environment", true),
1411 ->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1413 osg::StateSet* stateSet = mRoot->getOrCreateStateSet();
1415 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
1417 stateSet->setAttribute(new osg::Depth(osg::Depth::LESS));
1418 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1420 stateSet->setAttribute(new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01));
1421 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::OFF);
1422 stateSet->setAttribute(new osg::BlendFunc);
1423 stateSet->setMode(GL_BLEND, osg::StateAttribute::OFF);
1425 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
1427 // this will be set below
1428 stateSet->setMode(GL_NORMALIZE, osg::StateAttribute::OFF);
1430 osg::Material* material = new osg::Material;
1431 stateSet->setAttribute(material);
1433 stateSet->setTextureAttribute(0, new osg::TexEnv);
1434 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
1436 osg::Hint* hint = new osg::Hint(GL_FOG_HINT, GL_DONT_CARE);
1437 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/fog"));
1438 stateSet->setAttribute(hint);
1439 hint = new osg::Hint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
1440 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/polygon-smooth"));
1441 stateSet->setAttribute(hint);
1442 hint = new osg::Hint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
1443 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/line-smooth"));
1444 stateSet->setAttribute(hint);
1445 hint = new osg::Hint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
1446 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/point-smooth"));
1447 stateSet->setAttribute(hint);
1448 hint = new osg::Hint(GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE);
1449 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/perspective-correction"));
1450 stateSet->setAttribute(hint);
1452 osg::Group* sceneGroup = new osg::Group;
1453 sceneGroup->setName("rendererScene");
1454 sceneGroup->addChild(globals->get_scenery()->get_scene_graph());
1455 sceneGroup->setNodeMask(~simgear::BACKGROUND_BIT);
1457 //sceneGroup->addChild(thesky->getCloudRoot());
1459 stateSet = sceneGroup->getOrCreateStateSet();
1460 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
1462 // need to update the light on every frame
1463 // OSG LightSource objects are rather confusing. OSG only supports
1464 // the 10 lights specified by OpenGL itself; if more than one
1465 // LightSource in the scene graph have the same light number, it's
1466 // indeterminate which values will be used to render geometry that
1467 // has that light number enabled. Also, adding children to a
1468 // LightSource is just a shortcut for setting up a state set that
1469 // has the corresponding OpenGL light enabled: a LightSource will
1470 // affect geometry anywhere in the scene graph that has its light
1471 // number enabled in a state set.
1472 LightSource* lightSource = new LightSource;
1473 lightSource->setName("FGLightSource");
1474 lightSource->getLight()->setDataVariance(Object::DYNAMIC);
1475 // relative because of CameraView being just a clever transform node
1476 lightSource->setReferenceFrame(osg::LightSource::RELATIVE_RF);
1477 lightSource->setLocalStateSetModes(osg::StateAttribute::ON);
1478 lightSource->setUpdateCallback(new FGLightSourceUpdateCallback);
1479 mRealRoot->addChild(lightSource);
1480 // we need a white diffuse light for the phase of the moon
1481 osg::LightSource* sunLight = new osg::LightSource;
1482 sunLight->setName("sunLightSource");
1483 sunLight->getLight()->setDataVariance(Object::DYNAMIC);
1484 sunLight->getLight()->setLightNum(1);
1485 sunLight->setUpdateCallback(new FGLightSourceUpdateCallback(true));
1486 sunLight->setReferenceFrame(osg::LightSource::RELATIVE_RF);
1487 sunLight->setLocalStateSetModes(osg::StateAttribute::ON);
1489 // Hang a StateSet above the sky subgraph in order to turn off
1491 Group* skyGroup = new Group;
1492 skyGroup->setName("rendererSkyParent");
1493 StateSet* skySS = skyGroup->getOrCreateStateSet();
1494 skySS->setMode(GL_LIGHT0, StateAttribute::OFF);
1495 skyGroup->addChild(_sky->getPreRoot());
1496 sunLight->addChild(skyGroup);
1497 mRoot->addChild(sceneGroup);
1498 if ( _classicalRenderer )
1499 mRoot->addChild(sunLight);
1501 // Clouds are added to the scene graph later
1502 stateSet = globals->get_scenery()->get_scene_graph()->getOrCreateStateSet();
1503 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
1504 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::ON);
1505 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
1507 // enable disable specular highlights.
1508 // is the place where we might plug in an other fragment shader ...
1509 osg::LightModel* lightModel = new osg::LightModel;
1510 lightModel->setUpdateCallback(new FGLightModelUpdateCallback);
1511 stateSet->setAttribute(lightModel);
1513 // switch to enable wireframe
1514 osg::PolygonMode* polygonMode = new osg::PolygonMode;
1515 polygonMode->setUpdateCallback(new FGWireFrameModeUpdateCallback);
1516 stateSet->setAttributeAndModes(polygonMode);
1518 // scene fog handling
1519 osg::Fog* fog = new osg::Fog;
1520 fog->setUpdateCallback(new FGFogUpdateCallback);
1521 stateSet->setAttributeAndModes(fog);
1522 stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
1525 osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
1528 osg::Geode* geode = new osg::Geode;
1529 geode->addDrawable(new SGPuDrawable);
1530 geode->addDrawable(new SGHUDDrawable);
1531 guiCamera->addChild(geode);
1534 guiCamera->addChild(FGPanelNode::create2DPanelNode());
1537 osg::Switch* sw = new osg::Switch;
1538 sw->setName("scenerySwitch");
1539 sw->setUpdateCallback(new FGScenerySwitchCallback);
1540 sw->addChild(mRoot.get());
1541 mRealRoot->addChild(sw);
1542 // The clouds are attached directly to the scene graph root
1543 // because, in theory, they don't want the same default state set
1544 // as the rest of the scene. This may not be true in practice.
1545 if ( _classicalRenderer ) {
1546 mRealRoot->addChild(_sky->getCloudRoot());
1547 mRealRoot->addChild(FGCreateRedoutNode());
1549 // Attach empty program to the scene root so that shader programs
1550 // don't leak into state sets (effects) that shouldn't have one.
1551 stateSet = mRealRoot->getOrCreateStateSet();
1552 stateSet->setAttributeAndModes(new osg::Program, osg::StateAttribute::ON);
1554 mDeferredRealRoot->addChild( mRealRoot.get() );
1556 DeletionManager::install(mRealRoot.get());
1559 // Update all Visuals (redraws anything graphics related)
1561 FGRenderer::update( ) {
1562 if (!_position_finalized || !_scenery_loaded->getBoolValue())
1564 _splash_alpha->setDoubleValue(1.0);
1567 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1569 if (_splash_alpha->getDoubleValue()>0.0)
1571 // Fade out the splash screen
1572 const double fade_time = 0.5;
1573 const double fade_steps_per_sec = 10;
1574 double delay_time = SGMiscd::min(fade_time/fade_steps_per_sec,
1575 (SGTimeStamp::now() - _splash_time).toSecs());
1576 _splash_time = SGTimeStamp::now();
1577 double sAlpha = _splash_alpha->getDoubleValue();
1578 sAlpha -= SGMiscd::max(0.0,delay_time/fade_time);
1579 FGScenerySwitchCallback::scenery_enabled = (sAlpha<1.0);
1580 _splash_alpha->setDoubleValue((sAlpha < 0) ? 0.0 : sAlpha);
1583 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
1584 if (!_classicalRenderer ) {
1585 _ambientFactor->set( toOsg(l->scene_ambient()) );
1586 _sunDiffuse->set( toOsg(l->scene_diffuse()) );
1587 _sunSpecular->set( toOsg(l->scene_specular()) );
1588 _sunDirection->set( osg::Vec3f(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]) );
1591 // update fog params
1592 double actual_visibility;
1593 if (_cloud_status->getBoolValue()) {
1594 actual_visibility = _sky->get_visibility();
1596 actual_visibility = _visibility_m->getDoubleValue();
1599 // idle_state is now 1000 meaning we've finished all our
1600 // initializations and are running the main loop, so this will
1601 // now work without seg faulting the system.
1603 FGViewer *current__view = globals->get_current_view();
1604 // Force update of center dependent values ...
1605 current__view->set_dirty();
1607 osg::Camera *camera = viewer->getCamera();
1609 bool skyblend = _skyblend->getBoolValue();
1612 if ( _textures->getBoolValue() ) {
1613 SGVec4f clearColor(l->adj_fog_color());
1614 camera->setClearColor(toOsg(clearColor));
1617 SGVec4f clearColor(l->sky_color());
1618 camera->setClearColor(toOsg(clearColor));
1621 // update fog params if visibility has changed
1622 double visibility_meters = _visibility_m->getDoubleValue();
1623 _sky->set_visibility(visibility_meters);
1625 double altitude_m = _altitude_ft->getDoubleValue() * SG_FEET_TO_METER;
1626 _sky->modify_vis( altitude_m, 0.0 /* time factor, now unused */);
1628 // update the sky dome
1631 // The sun and moon distances are scaled down versions
1632 // of the actual distance to get both the moon and the sun
1633 // within the range of the far clip plane.
1634 // Moon distance: 384,467 kilometers
1635 // Sun distance: 150,000,000 kilometers
1637 double sun_horiz_eff, moon_horiz_eff;
1638 if (_horizon_effect->getBoolValue()) {
1640 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_sun_angle()),
1644 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_moon_angle()),
1648 sun_horiz_eff = moon_horiz_eff = 1.0;
1652 sstate.pos = current__view->getViewPosition();
1653 sstate.pos_geod = current__view->getPosition();
1654 sstate.ori = current__view->getViewOrientation();
1655 sstate.spin = l->get_sun_rotation();
1656 sstate.gst = globals->get_time_params()->getGst();
1657 sstate.sun_dist = 50000.0 * sun_horiz_eff;
1658 sstate.moon_dist = 40000.0 * moon_horiz_eff;
1659 sstate.sun_angle = l->get_sun_angle();
1662 scolor.sky_color = SGVec3f(l->sky_color().data());
1663 scolor.adj_sky_color = SGVec3f(l->adj_sky_color().data());
1664 scolor.fog_color = SGVec3f(l->adj_fog_color().data());
1665 scolor.cloud_color = SGVec3f(l->cloud_color().data());
1666 scolor.sun_angle = l->get_sun_angle();
1667 scolor.moon_angle = l->get_moon_angle();
1669 double delta_time_sec = _sim_delta_sec->getDoubleValue();
1670 _sky->reposition( sstate, *globals->get_ephem(), delta_time_sec );
1671 _sky->repaint( scolor, *globals->get_ephem() );
1674 // shadows->setupShadows(
1675 // current__view->getLongitude_deg(),
1676 // current__view->getLatitude_deg(),
1677 // globals->get_time_params()->getGst(),
1678 // globals->get_ephem()->getSunRightAscension(),
1679 // globals->get_ephem()->getSunDeclination(),
1680 // l->get_sun_angle());
1684 // sgEnviro.setLight(l->adj_fog_color());
1685 // sgEnviro.startOfFrame(current__view->get_view_pos(),
1686 // current__view->get_world_up(),
1687 // current__view->getLongitude_deg(),
1688 // current__view->getLatitude_deg(),
1689 // current__view->getAltitudeASL_ft() * SG_FEET_TO_METER,
1693 // sgEnviro.drawLightning();
1695 // double current_view_origin_airspeed_horiz_kt =
1696 // fgGetDouble("/velocities/airspeed-kt", 0.0)
1697 // * cos( fgGetDouble("/orientation/pitch-deg", 0.0)
1698 // * SGD_DEGREES_TO_RADIANS);
1701 // if( is_internal )
1702 // shadows->endOfFrame();
1704 // need to call the update visitor once
1705 mFrameStamp->setCalendarTime(*globals->get_time_params()->getGmt());
1706 mUpdateVisitor->setViewData(current__view->getViewPosition(),
1707 current__view->getViewOrientation());
1708 SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
1709 mUpdateVisitor->setLight(direction, l->scene_ambient(),
1710 l->scene_diffuse(), l->scene_specular(),
1712 l->get_sun_angle()*SGD_RADIANS_TO_DEGREES);
1713 mUpdateVisitor->setVisibility(actual_visibility);
1714 simgear::GroundLightManager::instance()->update(mUpdateVisitor.get());
1715 osg::Node::NodeMask cullMask = ~simgear::LIGHTS_BITS & ~simgear::PICK_BIT;
1716 cullMask |= simgear::GroundLightManager::instance()
1717 ->getLightNodeMask(mUpdateVisitor.get());
1718 if (_panel_hotspots->getBoolValue())
1719 cullMask |= simgear::PICK_BIT;
1720 CameraGroup::getDefault()->setCameraCullMasks(cullMask);
1721 if ( !_classicalRenderer ) {
1722 _fogColor->set( toOsg( l->adj_fog_color() ) );
1723 _fogDensity->set( float( mUpdateVisitor->getFogExp2Density() ) );
1728 FGRenderer::resize( int width, int height )
1730 int curWidth = _xsize->getIntValue(),
1731 curHeight = _ysize->getIntValue();
1732 SG_LOG(SG_VIEW, SG_DEBUG, "FGRenderer::resize: new size " << width << " x " << height);
1733 if ((curHeight != height) || (curWidth != width)) {
1734 // must guard setting these, or PLIB-PUI fails with too many live interfaces
1735 _xsize->setIntValue(width);
1736 _ysize->setIntValue(height);
1740 typedef osgUtil::LineSegmentIntersector::Intersection Intersection;
1741 SGVec2d uvFromIntersection(const Intersection& hit)
1743 // Taken from http://trac.openscenegraph.org/projects/osg/browser/OpenSceneGraph/trunk/examples/osgmovie/osgmovie.cpp
1745 osg::Drawable* drawable = hit.drawable.get();
1746 osg::Geometry* geometry = drawable ? drawable->asGeometry() : 0;
1747 osg::Vec3Array* vertices =
1748 geometry ? dynamic_cast<osg::Vec3Array*>(geometry->getVertexArray()) : 0;
1752 SG_LOG(SG_INPUT, SG_WARN, "Unable to get vertices for intersection.");
1753 return SGVec2d(-9999,-9999);
1756 // get the vertex indices.
1757 const Intersection::IndexList& indices = hit.indexList;
1758 const Intersection::RatioList& ratios = hit.ratioList;
1760 if( indices.size() != 3 || ratios.size() != 3 )
1764 "Intersection has insufficient indices to work with." );
1765 return SGVec2d(-9999,-9999);
1768 unsigned int i1 = indices[0];
1769 unsigned int i2 = indices[1];
1770 unsigned int i3 = indices[2];
1772 float r1 = ratios[0];
1773 float r2 = ratios[1];
1774 float r3 = ratios[2];
1776 osg::Array* texcoords =
1777 (geometry->getNumTexCoordArrays() > 0) ? geometry->getTexCoordArray(0) : 0;
1778 osg::Vec2Array* texcoords_Vec2Array =
1779 dynamic_cast<osg::Vec2Array*>(texcoords);
1781 if( !texcoords_Vec2Array )
1783 SG_LOG(SG_INPUT, SG_WARN, "Unable to get texcoords for intersection.");
1784 return SGVec2d(-9999,-9999);
1787 // we have tex coord array so now we can compute the final tex coord at the
1788 // point of intersection.
1789 osg::Vec2 tc1 = (*texcoords_Vec2Array)[i1];
1790 osg::Vec2 tc2 = (*texcoords_Vec2Array)[i2];
1791 osg::Vec2 tc3 = (*texcoords_Vec2Array)[i3];
1793 return toSG( osg::Vec2d(tc1 * r1 + tc2 * r2 + tc3 * r3) );
1797 FGRenderer::pick(std::vector<SGSceneryPick>& pickList, const osg::Vec2& windowPos)
1799 // wipe out the return ...
1801 typedef osgUtil::LineSegmentIntersector::Intersections Intersections;
1802 Intersections intersections;
1804 if (!computeIntersections(CameraGroup::getDefault(), windowPos, intersections))
1806 for (Intersections::iterator hit = intersections.begin(),
1807 e = intersections.end();
1810 const osg::NodePath& np = hit->nodePath;
1811 osg::NodePath::const_reverse_iterator npi;
1813 for (npi = np.rbegin(); npi != np.rend(); ++npi) {
1814 SGSceneUserData* ud = SGSceneUserData::getSceneUserData(*npi);
1815 if (!ud || (ud->getNumPickCallbacks() == 0))
1818 for (unsigned i = 0; i < ud->getNumPickCallbacks(); ++i) {
1819 SGPickCallback* pickCallback = ud->getPickCallback(i);
1822 SGSceneryPick sceneryPick;
1823 sceneryPick.info.local = toSG(hit->getLocalIntersectPoint());
1824 sceneryPick.info.wgs84 = toSG(hit->getWorldIntersectPoint());
1826 if( pickCallback->needsUV() )
1827 sceneryPick.info.uv = uvFromIntersection(*hit);
1829 sceneryPick.callback = pickCallback;
1830 pickList.push_back(sceneryPick);
1831 } // of installed pick callbacks iteration
1832 } // of reverse node path walk
1835 return !pickList.empty();
1839 FGRenderer::setViewer(osgViewer::Viewer* viewer_)
1845 FGRenderer::setEventHandler(FGEventHandler* eventHandler_)
1847 eventHandler = eventHandler_;
1851 FGRenderer::addCamera(osg::Camera* camera, bool useSceneData)
1853 mRealRoot->addChild(camera);
1857 FGRenderer::removeCamera(osg::Camera* camera)
1859 mRealRoot->removeChild(camera);
1863 FGRenderer::setPlanes( double zNear, double zFar )
1865 _planes->set( osg::Vec3f( - zFar, - zFar * zNear, zFar - zNear ) );
1869 fgDumpSceneGraphToFile(const char* filename)
1871 return osgDB::writeNodeFile(*mRealRoot.get(), filename);
1875 fgDumpTerrainBranchToFile(const char* filename)
1877 return osgDB::writeNodeFile( *globals->get_scenery()->get_terrain_branch(),
1883 fgDumpNodeToFile(osg::Node* node, const char* filename)
1885 return osgDB::writeNodeFile(*node, filename);
1888 namespace flightgear
1890 using namespace osg;
1892 class VisibleSceneInfoVistor : public NodeVisitor, CullStack
1895 VisibleSceneInfoVistor()
1896 : NodeVisitor(CULL_VISITOR, TRAVERSE_ACTIVE_CHILDREN)
1898 setCullingMode(CullSettings::SMALL_FEATURE_CULLING
1899 | CullSettings::VIEW_FRUSTUM_CULLING);
1900 setComputeNearFarMode(CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1903 VisibleSceneInfoVistor(const VisibleSceneInfoVistor& rhs)
1907 META_NodeVisitor("flightgear","VisibleSceneInfoVistor")
1909 typedef std::map<const std::string,int> InfoMap;
1911 void getNodeInfo(Node* node)
1913 const char* typeName = typeid(*node).name();
1914 classInfo[typeName]++;
1915 const std::string& nodeName = node->getName();
1916 if (!nodeName.empty())
1917 nodeInfo[nodeName]++;
1922 using namespace std;
1923 typedef vector<InfoMap::iterator> FreqVector;
1924 cout << "class info:\n";
1926 for (InfoMap::iterator itr = classInfo.begin(), end = classInfo.end();
1929 classes.push_back(itr);
1930 sort(classes.begin(), classes.end(), freqComp);
1931 for (FreqVector::iterator itr = classes.begin(), end = classes.end();
1934 cout << (*itr)->first << " " << (*itr)->second << "\n";
1936 cout << "\nnode info:\n";
1938 for (InfoMap::iterator itr = nodeInfo.begin(), end = nodeInfo.end();
1941 nodes.push_back(itr);
1943 sort (nodes.begin(), nodes.end(), freqComp);
1944 for (FreqVector::iterator itr = nodes.begin(), end = nodes.end();
1947 cout << (*itr)->first << " " << (*itr)->second << "\n";
1952 void doTraversal(Camera* camera, Node* root, Viewport* viewport)
1954 ref_ptr<RefMatrix> projection
1955 = createOrReuseMatrix(camera->getProjectionMatrix());
1956 ref_ptr<RefMatrix> mv = createOrReuseMatrix(camera->getViewMatrix());
1958 viewport = camera->getViewport();
1960 pushViewport(viewport);
1961 pushProjectionMatrix(projection.get());
1962 pushModelViewMatrix(mv.get(), Transform::ABSOLUTE_RF);
1963 root->accept(*this);
1964 popModelViewMatrix();
1965 popProjectionMatrix();
1971 void apply(Node& node)
1980 void apply(Group& node)
1990 void apply(Transform& node)
1995 ref_ptr<RefMatrix> matrix = createOrReuseMatrix(*getModelViewMatrix());
1996 node.computeLocalToWorldMatrix(*matrix,this);
1997 pushModelViewMatrix(matrix.get(), node.getReferenceFrame());
2000 popModelViewMatrix();
2004 void apply(Camera& camera)
2006 // Save current cull settings
2007 CullSettings saved_cull_settings(*this);
2009 // set cull settings from this Camera
2010 setCullSettings(camera);
2011 // inherit the settings from above
2012 inheritCullSettings(saved_cull_settings, camera.getInheritanceMask());
2014 // set the cull mask.
2015 unsigned int savedTraversalMask = getTraversalMask();
2016 bool mustSetCullMask = (camera.getInheritanceMask()
2017 & osg::CullSettings::CULL_MASK) == 0;
2018 if (mustSetCullMask)
2019 setTraversalMask(camera.getCullMask());
2021 osg::RefMatrix* projection = 0;
2022 osg::RefMatrix* modelview = 0;
2024 if (camera.getReferenceFrame()==osg::Transform::RELATIVE_RF) {
2025 if (camera.getTransformOrder()==osg::Camera::POST_MULTIPLY) {
2026 projection = createOrReuseMatrix(*getProjectionMatrix()
2027 *camera.getProjectionMatrix());
2028 modelview = createOrReuseMatrix(*getModelViewMatrix()
2029 * camera.getViewMatrix());
2031 else { // pre multiply
2032 projection = createOrReuseMatrix(camera.getProjectionMatrix()
2033 * (*getProjectionMatrix()));
2034 modelview = createOrReuseMatrix(camera.getViewMatrix()
2035 * (*getModelViewMatrix()));
2038 // an absolute reference frame
2039 projection = createOrReuseMatrix(camera.getProjectionMatrix());
2040 modelview = createOrReuseMatrix(camera.getViewMatrix());
2042 if (camera.getViewport())
2043 pushViewport(camera.getViewport());
2045 pushProjectionMatrix(projection);
2046 pushModelViewMatrix(modelview, camera.getReferenceFrame());
2050 // restore the previous model view matrix.
2051 popModelViewMatrix();
2053 // restore the previous model view matrix.
2054 popProjectionMatrix();
2056 if (camera.getViewport()) popViewport();
2058 // restore the previous traversal mask settings
2059 if (mustSetCullMask)
2060 setTraversalMask(savedTraversalMask);
2062 // restore the previous cull settings
2063 setCullSettings(saved_cull_settings);
2068 static bool freqComp(const InfoMap::iterator& lhs, const InfoMap::iterator& rhs)
2070 return lhs->second > rhs->second;
2076 bool printVisibleSceneInfo(FGRenderer* renderer)
2078 osgViewer::Viewer* viewer = renderer->getViewer();
2079 VisibleSceneInfoVistor vsv;
2081 if (!viewer->getCamera()->getViewport() && viewer->getNumSlaves() > 0) {
2082 const View::Slave& slave = viewer->getSlave(0);
2083 vp = slave._camera->getViewport();
2085 vsv.doTraversal(viewer->getCamera(), viewer->getSceneData(), vp);
2090 // end of renderer.cxx