1 // renderer.cxx -- top level sim routines
3 // Written by Curtis Olson, started May 1997.
4 // This file contains parts of main.cxx prior to october 2004
6 // Copyright (C) 1997 - 2002 Curtis L. Olson - http://www.flightgear.org/~curt
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
30 #include <simgear/compiler.h>
38 #include <boost/foreach.hpp>
40 #include <osg/ref_ptr>
41 #include <osg/AlphaFunc>
42 #include <osg/BlendFunc>
44 #include <osg/CullFace>
45 #include <osg/CullStack>
51 #include <osg/LightModel>
52 #include <osg/LightSource>
53 #include <osg/Material>
55 #include <osg/NodeCallback>
57 #include <osg/PolygonMode>
58 #include <osg/PolygonOffset>
59 #include <osg/Program>
60 #include <osg/Version>
63 #include <osgUtil/LineSegmentIntersector>
65 #include <osg/io_utils>
66 #include <osgDB/WriteFile>
67 #include <osgViewer/Renderer>
69 #include <simgear/scene/material/matlib.hxx>
70 #include <simgear/scene/material/EffectCullVisitor.hxx>
71 #include <simgear/scene/material/Effect.hxx>
72 #include <simgear/scene/material/EffectGeode.hxx>
73 #include <simgear/scene/material/EffectBuilder.hxx>
74 #include <simgear/scene/model/animation.hxx>
75 #include <simgear/scene/model/placement.hxx>
76 #include <simgear/scene/sky/sky.hxx>
77 #include <simgear/scene/util/SGUpdateVisitor.hxx>
78 #include <simgear/scene/util/RenderConstants.hxx>
79 #include <simgear/scene/util/SGSceneUserData.hxx>
80 #include <simgear/scene/tgdb/GroundLightManager.hxx>
81 #include <simgear/scene/tgdb/pt_lights.hxx>
82 #include <simgear/scene/tgdb/userdata.hxx>
83 #include <simgear/structure/OSGUtils.hxx>
84 #include <simgear/props/props.hxx>
85 #include <simgear/timing/sg_time.hxx>
86 #include <simgear/ephemeris/ephemeris.hxx>
87 #include <simgear/math/sg_random.h>
89 #include <simgear/screen/jpgfactory.hxx>
92 #include <Time/light.hxx>
93 #include <Time/light.hxx>
94 #include <Cockpit/panel.hxx>
96 #include <Model/panelnode.hxx>
97 #include <Model/modelmgr.hxx>
98 #include <Model/acmodel.hxx>
99 #include <Scenery/scenery.hxx>
100 #include <Scenery/redout.hxx>
101 #include <GUI/new_gui.hxx>
102 #include <Instrumentation/HUD/HUD.hxx>
103 #include <Environment/precipitation_mgr.hxx>
104 #include <Environment/environment_mgr.hxx>
106 //#include <Main/main.hxx>
107 #include "viewer.hxx"
108 #include "viewmgr.hxx"
109 #include "splash.hxx"
110 #include "renderer.hxx"
111 #include "CameraGroup.hxx"
112 #include "FGEventHandler.hxx"
115 using namespace simgear;
116 using namespace flightgear;
118 class FGHintUpdateCallback : public osg::StateAttribute::Callback {
120 FGHintUpdateCallback(const char* configNode) :
121 mConfigNode(fgGetNode(configNode, true))
123 virtual void operator()(osg::StateAttribute* stateAttribute,
126 assert(dynamic_cast<osg::Hint*>(stateAttribute));
127 osg::Hint* hint = static_cast<osg::Hint*>(stateAttribute);
129 const char* value = mConfigNode->getStringValue();
131 hint->setMode(GL_DONT_CARE);
132 else if (0 == strcmp(value, "nicest"))
133 hint->setMode(GL_NICEST);
134 else if (0 == strcmp(value, "fastest"))
135 hint->setMode(GL_FASTEST);
137 hint->setMode(GL_DONT_CARE);
140 SGPropertyNode_ptr mConfigNode;
144 class SGPuDrawable : public osg::Drawable {
148 // Dynamic stuff, do not store geometry
149 setUseDisplayList(false);
150 setDataVariance(Object::DYNAMIC);
152 osg::StateSet* stateSet = getOrCreateStateSet();
153 stateSet->setRenderBinDetails(1001, "RenderBin");
154 // speed optimization?
155 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
156 // We can do translucent menus, so why not. :-)
157 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
158 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
159 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
161 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
163 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
164 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
166 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
167 { drawImplementation(*renderInfo.getState()); }
168 void drawImplementation(osg::State& state) const
170 state.setActiveTextureUnit(0);
171 state.setClientActiveTextureUnit(0);
173 state.disableAllVertexArrays();
175 glPushAttrib(GL_ALL_ATTRIB_BITS);
176 glPushClientAttrib(~0u);
184 virtual osg::Object* cloneType() const { return new SGPuDrawable; }
185 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGPuDrawable; }
190 class SGHUDDrawable : public osg::Drawable {
194 // Dynamic stuff, do not store geometry
195 setUseDisplayList(false);
196 setDataVariance(Object::DYNAMIC);
198 osg::StateSet* stateSet = getOrCreateStateSet();
199 stateSet->setRenderBinDetails(1000, "RenderBin");
201 // speed optimization?
202 stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
203 stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
204 stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
205 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
206 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
208 stateSet->setTextureAttribute(0, new osg::TexEnv(osg::TexEnv::MODULATE));
210 virtual void drawImplementation(osg::RenderInfo& renderInfo) const
211 { drawImplementation(*renderInfo.getState()); }
212 void drawImplementation(osg::State& state) const
214 state.setActiveTextureUnit(0);
215 state.setClientActiveTextureUnit(0);
216 state.disableAllVertexArrays();
218 glPushAttrib(GL_ALL_ATTRIB_BITS);
219 glPushClientAttrib(~0u);
221 HUD *hud = static_cast<HUD*>(globals->get_subsystem("hud"));
228 virtual osg::Object* cloneType() const { return new SGHUDDrawable; }
229 virtual osg::Object* clone(const osg::CopyOp&) const { return new SGHUDDrawable; }
234 class FGLightSourceUpdateCallback : public osg::NodeCallback {
238 * @param isSun true if the light is the actual sun i.e., for
239 * illuminating the moon.
241 FGLightSourceUpdateCallback(bool isSun = false) : _isSun(isSun) {}
242 FGLightSourceUpdateCallback(const FGLightSourceUpdateCallback& nc,
244 : NodeCallback(nc, op), _isSun(nc._isSun)
246 META_Object(flightgear,FGLightSourceUpdateCallback);
248 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
250 assert(dynamic_cast<osg::LightSource*>(node));
251 osg::LightSource* lightSource = static_cast<osg::LightSource*>(node);
252 osg::Light* light = lightSource->getLight();
254 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
256 light->setAmbient(Vec4(0.0f, 0.0f, 0.0f, 0.0f));
257 light->setDiffuse(Vec4(1.0f, 1.0f, 1.0f, 1.0f));
258 light->setSpecular(Vec4(0.0f, 0.0f, 0.0f, 0.0f));
260 light->setAmbient(toOsg(l->scene_ambient()));
261 light->setDiffuse(toOsg(l->scene_diffuse()));
262 light->setSpecular(toOsg(l->scene_specular()));
264 osg::Vec4f position(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2], 0);
265 light->setPosition(position);
273 class FGWireFrameModeUpdateCallback : public osg::StateAttribute::Callback {
275 FGWireFrameModeUpdateCallback() :
276 mWireframe(fgGetNode("/sim/rendering/wireframe", true))
278 virtual void operator()(osg::StateAttribute* stateAttribute,
281 assert(dynamic_cast<osg::PolygonMode*>(stateAttribute));
282 osg::PolygonMode* polygonMode;
283 polygonMode = static_cast<osg::PolygonMode*>(stateAttribute);
285 if (mWireframe->getBoolValue())
286 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
287 osg::PolygonMode::LINE);
289 polygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK,
290 osg::PolygonMode::FILL);
293 SGPropertyNode_ptr mWireframe;
296 class FGLightModelUpdateCallback : public osg::StateAttribute::Callback {
298 FGLightModelUpdateCallback() :
299 mHighlights(fgGetNode("/sim/rendering/specular-highlight", true))
301 virtual void operator()(osg::StateAttribute* stateAttribute,
304 assert(dynamic_cast<osg::LightModel*>(stateAttribute));
305 osg::LightModel* lightModel;
306 lightModel = static_cast<osg::LightModel*>(stateAttribute);
309 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
310 lightModel->setAmbientIntensity(toOsg(l->scene_ambient());
312 lightModel->setAmbientIntensity(osg::Vec4(0, 0, 0, 1));
314 lightModel->setTwoSided(true);
315 lightModel->setLocalViewer(false);
317 if (mHighlights->getBoolValue()) {
318 lightModel->setColorControl(osg::LightModel::SEPARATE_SPECULAR_COLOR);
320 lightModel->setColorControl(osg::LightModel::SINGLE_COLOR);
324 SGPropertyNode_ptr mHighlights;
327 class FGFogEnableUpdateCallback : public osg::StateSet::Callback {
329 FGFogEnableUpdateCallback() :
330 mFogEnabled(fgGetNode("/sim/rendering/fog", true))
332 virtual void operator()(osg::StateSet* stateSet, osg::NodeVisitor*)
334 if (strcmp(mFogEnabled->getStringValue(), "disabled") == 0) {
335 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
337 stateSet->setMode(GL_FOG, osg::StateAttribute::ON);
341 SGPropertyNode_ptr mFogEnabled;
344 class FGFogUpdateCallback : public osg::StateAttribute::Callback {
346 virtual void operator () (osg::StateAttribute* sa, osg::NodeVisitor* nv)
348 assert(dynamic_cast<SGUpdateVisitor*>(nv));
349 assert(dynamic_cast<osg::Fog*>(sa));
350 SGUpdateVisitor* updateVisitor = static_cast<SGUpdateVisitor*>(nv);
351 osg::Fog* fog = static_cast<osg::Fog*>(sa);
352 fog->setMode(osg::Fog::EXP2);
353 fog->setColor(toOsg(updateVisitor->getFogColor()));
354 fog->setDensity(updateVisitor->getFogExp2Density());
358 // update callback for the switch node guarding that splash
359 class FGScenerySwitchCallback : public osg::NodeCallback {
361 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
363 assert(dynamic_cast<osg::Switch*>(node));
364 osg::Switch* sw = static_cast<osg::Switch*>(node);
366 bool enabled = scenery_enabled;
367 sw->setValue(0, enabled);
373 static bool scenery_enabled;
376 bool FGScenerySwitchCallback::scenery_enabled = false;
378 static osg::ref_ptr<osg::FrameStamp> mFrameStamp = new osg::FrameStamp;
379 static osg::ref_ptr<SGUpdateVisitor> mUpdateVisitor= new SGUpdateVisitor;
381 static osg::ref_ptr<osg::Group> mRealRoot = new osg::Group;
382 static osg::ref_ptr<osg::Group> mDeferredRealRoot = new osg::Group;
384 static osg::ref_ptr<osg::Group> mRoot = new osg::Group;
386 #ifdef FG_JPEG_SERVER
387 static void updateRenderer()
389 globals->get_renderer()->update();
393 FGRenderer::FGRenderer() :
395 _ambientFactor( new osg::Uniform( "fg_SunAmbientColor", osg::Vec4f() ) ),
396 _sunDiffuse( new osg::Uniform( "fg_SunDiffuseColor", osg::Vec4f() ) ),
397 _sunSpecular( new osg::Uniform( "fg_SunSpecularColor", osg::Vec4f() ) ),
398 _sunDirection( new osg::Uniform( "fg_SunDirection", osg::Vec3f() ) ),
399 _planes( new osg::Uniform( "fg_Planes", osg::Vec3f() ) ),
400 _fogColor( new osg::Uniform( "fg_FogColor", osg::Vec4f(1.0, 1.0, 1.0, 1.0) ) ),
401 _fogDensity( new osg::Uniform( "fg_FogDensity", 0.0001f ) ),
402 _shadowNumber( new osg::Uniform( "fg_ShadowNumber", (int)4 ) ),
403 _shadowDistances( new osg::Uniform( "fg_ShadowDistances", osg::Vec4f(5.0, 50.0, 500.0, 5000.0 ) ) ),
404 _depthInColor( new osg::Uniform( "fg_DepthInColor", false ) )
406 #ifdef FG_JPEG_SERVER
407 jpgRenderFrame = updateRenderer;
409 eventHandler = new FGEventHandler;
412 _cascadeFar[0] = 5.f;
413 _cascadeFar[1] = 50.f;
414 _cascadeFar[2] = 500.f;
415 _cascadeFar[3] = 5000.f;
418 FGRenderer::~FGRenderer()
420 #ifdef FG_JPEG_SERVER
421 jpgRenderFrame = NULL;
426 // Initialize various GL/view parameters
427 // XXX This should be called "preinit" or something, as it initializes
428 // critical parts of the scene graph in addition to the splash screen.
430 FGRenderer::splashinit( void ) {
431 osgViewer::Viewer* viewer = getViewer();
432 mRealRoot = dynamic_cast<osg::Group*>(viewer->getSceneData());
433 ref_ptr<Node> splashNode = fgCreateSplashNode();
434 if (_classicalRenderer) {
435 mRealRoot->addChild(splashNode.get());
437 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
438 ii != CameraGroup::getDefault()->camerasEnd();
441 CameraInfo* info = ii->get();
442 Camera* camera = info->getCamera(DISPLAY_CAMERA);
443 if (camera == 0) continue;
445 camera->addChild(splashNode.get());
448 mFrameStamp = viewer->getFrameStamp();
449 // Scene doesn't seem to pass the frame stamp to the update
450 // visitor automatically.
451 mUpdateVisitor->setFrameStamp(mFrameStamp.get());
452 viewer->setUpdateVisitor(mUpdateVisitor.get());
453 fgSetDouble("/sim/startup/splash-alpha", 1.0);
456 class ShadowMapSizeListener : public SGPropertyChangeListener {
458 virtual void valueChanged(SGPropertyNode* node) {
459 globals->get_renderer()->updateShadowMapSize(node->getIntValue());
463 class ShadowEnabledListener : public SGPropertyChangeListener {
465 virtual void valueChanged(SGPropertyNode* node) {
466 globals->get_renderer()->enableShadows(node->getBoolValue());
470 class ShadowNumListener : public SGPropertyChangeListener {
472 virtual void valueChanged(SGPropertyNode* node) {
473 globals->get_renderer()->updateCascadeNumber(node->getIntValue());
477 class ShadowRangeListener : public SGPropertyChangeListener {
479 virtual void valueChanged(SGPropertyNode* node) {
480 globals->get_renderer()->updateCascadeFar(node->getIndex(), node->getFloatValue());
485 FGRenderer::init( void )
487 sgUserDataInit( globals->get_props() );
489 _classicalRenderer = !fgGetBool("/sim/rendering/rembrandt/enabled", false);
490 _shadowMapSize = fgGetInt( "/sim/rendering/shadows/map-size", 4096 );
491 fgAddChangeListener( new ShadowMapSizeListener, "/sim/rendering/shadows/map-size" );
492 fgAddChangeListener( new ShadowEnabledListener, "/sim/rendering/shadows/enabled" );
493 ShadowRangeListener* srl = new ShadowRangeListener;
494 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[0]");
495 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[1]");
496 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[2]");
497 fgAddChangeListener(srl, "/sim/rendering/shadows/cascade-far-m[3]");
498 fgAddChangeListener(new ShadowNumListener, "/sim/rendering/shadows/num-cascades");
499 _numCascades = fgGetInt("/sim/rendering/shadows/num-cascades", 4);
500 _cascadeFar[0] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[0]", 5.0f);
501 _cascadeFar[1] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[1]", 50.0f);
502 _cascadeFar[2] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[2]", 500.0f);
503 _cascadeFar[3] = fgGetFloat("/sim/rendering/shadows/cascade-far-m[3]", 5000.0f);
504 updateCascadeNumber(_numCascades);
505 updateCascadeFar(0, _cascadeFar[0]);
506 updateCascadeFar(1, _cascadeFar[1]);
507 updateCascadeFar(2, _cascadeFar[2]);
508 updateCascadeFar(3, _cascadeFar[3]);
509 _useColorForDepth = fgGetBool( "/sim/rendering/rembrandt/use-color-for-depth", false );
510 _depthInColor->set( _useColorForDepth );
512 _renderer = fgGetString("/sim/rendering/rembrandt/renderer", "default-pipeline");
513 if (!_classicalRenderer)
514 _pipeline = makeRenderingPipeline(_renderer, 0);
515 _scenery_loaded = fgGetNode("/sim/sceneryloaded", true);
516 _scenery_override = fgGetNode("/sim/sceneryloaded-override", true);
517 _panel_hotspots = fgGetNode("/sim/panel-hotspots", true);
518 _virtual_cockpit = fgGetNode("/sim/virtual-cockpit", true);
520 _sim_delta_sec = fgGetNode("/sim/time/delta-sec", true);
522 _xsize = fgGetNode("/sim/startup/xsize", true);
523 _ysize = fgGetNode("/sim/startup/ysize", true);
524 _splash_alpha = fgGetNode("/sim/startup/splash-alpha", true);
526 _skyblend = fgGetNode("/sim/rendering/skyblend", true);
527 _point_sprites = fgGetNode("/sim/rendering/point-sprites", true);
528 _enhanced_lighting = fgGetNode("/sim/rendering/enhanced-lighting", true);
529 _distance_attenuation = fgGetNode("/sim/rendering/distance-attenuation", true);
530 _horizon_effect = fgGetNode("/sim/rendering/horizon-effect", true);
531 _textures = fgGetNode("/sim/rendering/textures", true);
533 _altitude_ft = fgGetNode("/position/altitude-ft", true);
535 _cloud_status = fgGetNode("/environment/clouds/status", true);
536 _visibility_m = fgGetNode("/environment/visibility-m", true);
538 bool use_point_sprites = _point_sprites->getBoolValue();
539 bool enhanced_lighting = _enhanced_lighting->getBoolValue();
540 bool distance_attenuation = _distance_attenuation->getBoolValue();
542 SGConfigureDirectionalLights( use_point_sprites, enhanced_lighting,
543 distance_attenuation );
545 if (const char* tc = fgGetString("/sim/rendering/texture-compression", NULL)) {
546 if (strcmp(tc, "false") == 0 || strcmp(tc, "off") == 0 ||
547 strcmp(tc, "0") == 0 || strcmp(tc, "no") == 0 ||
548 strcmp(tc, "none") == 0) {
549 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::DoNotUseCompression);
550 } else if (strcmp(tc, "arb") == 0) {
551 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseARBCompression);
552 } else if (strcmp(tc, "dxt1") == 0) {
553 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT1Compression);
554 } else if (strcmp(tc, "dxt3") == 0) {
555 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT3Compression);
556 } else if (strcmp(tc, "dxt5") == 0) {
557 SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::UseDXT5Compression);
559 SG_LOG(SG_VIEW, SG_WARN, "Unknown texture compression setting!");
563 // create sky, but can't build until setupView, since we depend
564 // on other subsystems to be inited, eg Ephemeris
567 SGPath texture_path(globals->get_fg_root());
568 texture_path.append("Textures");
569 texture_path.append("Sky");
570 for (int i = 0; i < FGEnvironmentMgr::MAX_CLOUD_LAYERS; i++) {
571 SGCloudLayer * layer = new SGCloudLayer(texture_path.str());
572 _sky->add_cloud_layer(layer);
575 _sky->texture_path( texture_path.str() );
577 if (!_classicalRenderer) {
578 eventHandler->setChangeStatsCameraRenderOrder( true );
582 void installCullVisitor(Camera* camera)
584 osgViewer::Renderer* renderer
585 = static_cast<osgViewer::Renderer*>(camera->getRenderer());
586 for (int i = 0; i < 2; ++i) {
587 osgUtil::SceneView* sceneView = renderer->getSceneView(i);
588 #if SG_OSG_VERSION_LESS_THAN(3,0,0)
589 sceneView->setCullVisitor(new simgear::EffectCullVisitor);
591 osg::ref_ptr<osgUtil::CullVisitor::Identifier> identifier;
592 identifier = sceneView->getCullVisitor()->getIdentifier();
593 sceneView->setCullVisitor(new simgear::EffectCullVisitor);
594 sceneView->getCullVisitor()->setIdentifier(identifier.get());
596 identifier = sceneView->getCullVisitorLeft()->getIdentifier();
597 sceneView->setCullVisitorLeft(sceneView->getCullVisitor()->clone());
598 sceneView->getCullVisitorLeft()->setIdentifier(identifier.get());
600 identifier = sceneView->getCullVisitorRight()->getIdentifier();
601 sceneView->setCullVisitorRight(sceneView->getCullVisitor()->clone());
602 sceneView->getCullVisitorRight()->setIdentifier(identifier.get());
608 FGRenderer::buildRenderingPipeline(CameraGroup* cgroup, unsigned flags, Camera* camera,
610 const Matrix& projection,
611 osg::GraphicsContext* gc,
612 bool useMasterSceneData)
614 CameraInfo* info = 0;
615 if (!_classicalRenderer && (flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0)
616 info = buildDeferredPipeline( cgroup, flags, camera, view, projection, gc );
621 if ((flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0)
622 _classicalRenderer = true;
623 return buildClassicalPipeline( cgroup, flags, camera, view, projection, useMasterSceneData );
628 FGRenderer::buildClassicalPipeline(CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
629 const osg::Matrix& view,
630 const osg::Matrix& projection,
631 bool useMasterSceneData)
633 CameraInfo* info = new CameraInfo(flags);
634 // The camera group will always update the camera
635 camera->setReferenceFrame(Transform::ABSOLUTE_RF);
637 Camera* farCamera = 0;
638 if ((flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0) {
639 farCamera = new Camera;
640 farCamera->setAllowEventFocus(camera->getAllowEventFocus());
641 farCamera->setGraphicsContext(camera->getGraphicsContext());
642 farCamera->setCullingMode(camera->getCullingMode());
643 farCamera->setInheritanceMask(camera->getInheritanceMask());
644 farCamera->setReferenceFrame(Transform::ABSOLUTE_RF);
645 // Each camera's viewport is written when the window is
646 // resized; if the the viewport isn't copied here, it gets updated
647 // twice and ends up with the wrong value.
648 farCamera->setViewport(simgear::clone(camera->getViewport()));
649 farCamera->setDrawBuffer(camera->getDrawBuffer());
650 farCamera->setReadBuffer(camera->getReadBuffer());
651 farCamera->setRenderTargetImplementation(
652 camera->getRenderTargetImplementation());
653 const Camera::BufferAttachmentMap& bufferMap
654 = camera->getBufferAttachmentMap();
655 if (bufferMap.count(Camera::COLOR_BUFFER) != 0) {
657 Camera::COLOR_BUFFER,
658 bufferMap.find(Camera::COLOR_BUFFER)->second._texture.get());
660 cgroup->getViewer()->addSlave(farCamera, projection, view, useMasterSceneData);
661 installCullVisitor(farCamera);
662 int farSlaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
663 info->addCamera( FAR_CAMERA, farCamera, farSlaveIndex );
664 farCamera->setRenderOrder(Camera::POST_RENDER, farSlaveIndex);
665 camera->setCullMask(camera->getCullMask() & ~simgear::BACKGROUND_BIT);
666 camera->setClearMask(GL_DEPTH_BUFFER_BIT);
668 cgroup->getViewer()->addSlave(camera, projection, view, useMasterSceneData);
669 installCullVisitor(camera);
670 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
671 info->addCamera( MAIN_CAMERA, camera, slaveIndex );
672 camera->setRenderOrder(Camera::POST_RENDER, slaveIndex);
673 cgroup->addCamera(info);
677 class FGDeferredRenderingCameraCullCallback : public osg::NodeCallback {
679 FGDeferredRenderingCameraCullCallback( const std::string& k, CameraInfo* i, bool nd = false ) : kind( k ), info( i ), needsDuDv(nd) {}
680 virtual void operator()( osg::Node *n, osg::NodeVisitor *nv) {
681 simgear::EffectCullVisitor* cv = dynamic_cast<simgear::EffectCullVisitor*>(nv);
682 osg::Camera* camera = static_cast<osg::Camera*>(n);
684 cv->clearBufferList();
685 for (RenderBufferMap::iterator ii = info->buffers.begin(); ii != info->buffers.end(); ++ii) {
686 cv->addBuffer(ii->first, ii->second.texture);
689 if ( !info->getRenderStageInfo(kind).fullscreen )
690 info->setMatrices( camera );
693 osg::Matrix projInverse;
694 info->projInverse->get( projInverse );
696 osg::Vec4 p0 = osg::Vec4( -1.0, -1.0, 0.0, 1.0 ) * projInverse;
697 info->du->set( osg::Vec4( 1.0, -1.0, 0.0, 1.0 ) * projInverse - p0 );
698 info->dv->set( osg::Vec4( -1.0, 1.0, 0.0, 1.0 ) * projInverse - p0 );
701 cv->traverse( *camera );
703 if ( kind == GEOMETRY_CAMERA ) {
704 // Save transparent bins to render later
705 osgUtil::RenderStage* renderStage = cv->getRenderStage();
706 osgUtil::RenderBin::RenderBinList& rbl = renderStage->getRenderBinList();
707 for (osgUtil::RenderBin::RenderBinList::iterator rbi = rbl.begin(); rbi != rbl.end(); ) {
708 if (rbi->second->getSortMode() == osgUtil::RenderBin::SORT_BACK_TO_FRONT) {
709 info->savedTransparentBins.insert( std::make_pair( rbi->first, rbi->second ) );
715 } else if ( kind == LIGHTING_CAMERA ) {
716 osg::ref_ptr<osg::Camera> mainShadowCamera = info->getCamera( SHADOW_CAMERA );
717 if (mainShadowCamera.valid()) {
718 osg::Switch* grp = mainShadowCamera->getChild(0)->asSwitch();
719 for (int i = 0; i < 4; ++i ) {
720 if (!grp->getValue(i))
722 osg::TexGen* shadowTexGen = info->shadowTexGen[i];
723 shadowTexGen->setMode(osg::TexGen::EYE_LINEAR);
725 osg::Camera* cascadeCam = static_cast<osg::Camera*>( grp->getChild(i) );
726 // compute the matrix which takes a vertex from view coords into tex coords
727 shadowTexGen->setPlanesFromMatrix( cascadeCam->getProjectionMatrix() *
728 osg::Matrix::translate(1.0,1.0,1.0) *
729 osg::Matrix::scale(0.5f,0.5f,0.5f) );
731 osg::RefMatrix * refMatrix = new osg::RefMatrix( cascadeCam->getInverseViewMatrix() * *cv->getModelViewMatrix() );
733 cv->getRenderStage()->getPositionalStateContainer()->addPositionedTextureAttribute( i+1, refMatrix, shadowTexGen );
736 // Render saved transparent render bins
737 osgUtil::RenderStage* renderStage = cv->getRenderStage();
738 osgUtil::RenderBin::RenderBinList& rbl = renderStage->getRenderBinList();
739 for (osgUtil::RenderBin::RenderBinList::iterator rbi = info->savedTransparentBins.begin(); rbi != info->savedTransparentBins.end(); ++rbi ){
740 rbl.insert( std::make_pair( rbi->first + 10000, rbi->second ) );
742 info->savedTransparentBins.clear();
752 osg::Texture2D* buildDeferredBuffer(GLint internalFormat, GLenum sourceFormat, GLenum sourceType, GLenum wrapMode, bool shadowComparison = false)
754 osg::Texture2D* tex = new osg::Texture2D;
755 tex->setResizeNonPowerOfTwoHint( false );
756 tex->setInternalFormat( internalFormat );
757 tex->setShadowComparison(shadowComparison);
758 if (shadowComparison) {
759 tex->setShadowTextureMode(osg::Texture2D::LUMINANCE);
760 tex->setBorderColor(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
762 tex->setSourceFormat(sourceFormat);
763 tex->setSourceType(sourceType);
764 tex->setFilter( osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR );
765 tex->setFilter( osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR );
766 tex->setWrap( osg::Texture::WRAP_S, (osg::Texture::WrapMode)wrapMode );
767 tex->setWrap( osg::Texture::WRAP_T, (osg::Texture::WrapMode)wrapMode );
771 void attachBufferToCamera( CameraInfo* info, osg::Camera* camera, osg::Camera::BufferComponent c, const std::string& ck, const std::string& bk )
773 camera->attach( c, info->getBuffer(bk) );
774 info->getRenderStageInfo(ck).buffers.insert( std::make_pair( c, bk ) );
777 void buildAttachments(CameraInfo* info, osg::Camera* camera, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments) {
778 BOOST_FOREACH(ref_ptr<FGRenderingPipeline::Attachment> attachment, attachments) {
779 if (attachment->valid())
780 attachBufferToCamera( info, camera, attachment->component, name, attachment->buffer );
784 osg::Camera* FGRenderer::buildDeferredGeometryCamera( CameraInfo* info, osg::GraphicsContext* gc, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments )
786 osg::Camera* camera = new osg::Camera;
787 info->addCamera(name, camera );
789 camera->setCullMask( ~simgear::MODELLIGHT_BIT );
790 camera->setName( "GeometryC" );
791 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
792 camera->setGraphicsContext( gc );
793 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( name, info ) );
794 camera->setClearMask( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
795 camera->setClearColor( osg::Vec4( 0., 0., 0., 0. ) );
796 camera->setClearDepth( 1.0 );
797 camera->setColorMask(true, true, true, true);
798 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
799 camera->setRenderOrder(osg::Camera::NESTED_RENDER, 0);
800 camera->setViewport( new osg::Viewport );
801 buildAttachments(info, camera, name, attachments);
802 camera->setDrawBuffer(GL_FRONT);
803 camera->setReadBuffer(GL_FRONT);
805 osg::StateSet* ss = camera->getOrCreateStateSet();
806 ss->addUniform( _depthInColor );
808 camera->addChild( mDeferredRealRoot.get() );
813 static void setShadowCascadeStateSet( osg::Camera* cam ) {
814 osg::StateSet* ss = cam->getOrCreateStateSet();
815 ss->setAttribute( new osg::PolygonOffset( 1.1f, 5.0f ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
816 ss->setMode( GL_POLYGON_OFFSET_FILL, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
817 ss->setRenderBinDetails( 0, "RenderBin", osg::StateSet::OVERRIDE_RENDERBIN_DETAILS );
818 ss->setAttributeAndModes( new osg::AlphaFunc( osg::AlphaFunc::GREATER, 0.05 ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
819 ss->setAttributeAndModes( new osg::ColorMask( false, false, false, false ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
820 ss->setAttributeAndModes( new osg::CullFace( osg::CullFace::FRONT ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
821 osg::Program* program = new osg::Program;
822 ss->setAttribute( program, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
823 ss->setMode( GL_LIGHTING, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
824 ss->setMode( GL_BLEND, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
825 //ss->setTextureMode( 0, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
826 ss->setTextureMode( 0, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
827 ss->setTextureMode( 1, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
828 ss->setTextureMode( 1, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
829 ss->setTextureMode( 2, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
830 ss->setTextureMode( 2, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
833 static osg::Camera* createShadowCascadeCamera( int no, int cascadeSize ) {
834 osg::Camera* cascadeCam = new osg::Camera;
835 setShadowCascadeStateSet( cascadeCam );
837 std::ostringstream oss;
838 oss << "CascadeCamera" << (no + 1);
839 cascadeCam->setName( oss.str() );
840 cascadeCam->setClearMask(0);
841 cascadeCam->setCullMask(~( simgear::MODELLIGHT_BIT /* | simgear::NO_SHADOW_BIT */ ) );
842 cascadeCam->setCullingMode( cascadeCam->getCullingMode() & ~osg::CullSettings::SMALL_FEATURE_CULLING );
843 cascadeCam->setAllowEventFocus(false);
844 cascadeCam->setReferenceFrame(osg::Transform::ABSOLUTE_RF_INHERIT_VIEWPOINT);
845 cascadeCam->setRenderOrder(osg::Camera::NESTED_RENDER);
846 cascadeCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
847 cascadeCam->setViewport( int( no / 2 ) * cascadeSize, (no & 1) * cascadeSize, cascadeSize, cascadeSize );
851 osg::Camera* FGRenderer::buildDeferredShadowCamera( CameraInfo* info, osg::GraphicsContext* gc, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments )
853 osg::Camera* mainShadowCamera = new osg::Camera;
854 info->addCamera(name, mainShadowCamera, 0.0f );
856 mainShadowCamera->setName( "ShadowC" );
857 mainShadowCamera->setClearMask( GL_DEPTH_BUFFER_BIT );
858 mainShadowCamera->setClearDepth( 1.0 );
859 mainShadowCamera->setAllowEventFocus(false);
860 mainShadowCamera->setGraphicsContext(gc);
861 mainShadowCamera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
862 buildAttachments(info, mainShadowCamera, name, attachments);
863 mainShadowCamera->setComputeNearFarMode(osg::Camera::DO_NOT_COMPUTE_NEAR_FAR);
864 mainShadowCamera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
865 mainShadowCamera->setProjectionMatrix(osg::Matrix::identity());
866 mainShadowCamera->setCullingMode( osg::CullSettings::NO_CULLING );
867 mainShadowCamera->setViewport( 0, 0, _shadowMapSize, _shadowMapSize );
868 mainShadowCamera->setDrawBuffer(GL_FRONT);
869 mainShadowCamera->setReadBuffer(GL_FRONT);
870 mainShadowCamera->setRenderOrder(Camera::NESTED_RENDER, 1);
872 osg::Switch* shadowSwitch = new osg::Switch;
873 mainShadowCamera->addChild( shadowSwitch );
875 for (int i = 0; i < 4; ++i ) {
876 osg::Camera* cascadeCam = createShadowCascadeCamera( i, _shadowMapSize/2 );
877 cascadeCam->addChild( mDeferredRealRoot.get() );
878 shadowSwitch->addChild( cascadeCam );
879 info->shadowTexGen[i] = new osg::TexGen;
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 osg::Camera* FGRenderer::buildDeferredLightingCamera( CameraInfo* info, osg::GraphicsContext* gc, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments )
1060 osg::Camera* camera = new osg::Camera;
1061 info->addCamera(name, camera );
1063 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( name, info ) );
1064 camera->setAllowEventFocus(false);
1065 camera->setGraphicsContext(gc);
1066 camera->setViewport(new Viewport);
1067 camera->setName("LightingC");
1068 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1069 camera->setRenderOrder(osg::Camera::NESTED_RENDER, 50);
1070 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
1071 camera->setViewport( new osg::Viewport );
1072 buildAttachments(info, camera, name, attachments);
1073 camera->setDrawBuffer(GL_FRONT);
1074 camera->setReadBuffer(GL_FRONT);
1075 camera->setClearColor( osg::Vec4( 0., 0., 0., 1. ) );
1076 camera->setClearMask( GL_COLOR_BUFFER_BIT );
1077 camera->setColorMask(true, true, true, true);
1078 osg::StateSet* ss = camera->getOrCreateStateSet();
1079 ss->setAttribute( new osg::Depth(osg::Depth::LESS, 0.0, 1.0, false) );
1080 ss->addUniform( _depthInColor );
1082 osg::Group* lightingGroup = new osg::Group;
1084 osg::Camera* quadCam1 = new osg::Camera;
1085 quadCam1->setName( "QuadCamera1" );
1086 quadCam1->setClearMask(0);
1087 quadCam1->setAllowEventFocus(false);
1088 quadCam1->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1089 quadCam1->setRenderOrder(osg::Camera::NESTED_RENDER);
1090 quadCam1->setViewMatrix(osg::Matrix::identity());
1091 quadCam1->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1092 quadCam1->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1093 ss = quadCam1->getOrCreateStateSet();
1094 ss->addUniform( _ambientFactor );
1095 ss->addUniform( info->projInverse );
1096 ss->addUniform( info->viewInverse );
1097 ss->addUniform( info->view );
1098 ss->addUniform( _sunDiffuse );
1099 ss->addUniform( _sunSpecular );
1100 ss->addUniform( _sunDirection );
1101 ss->addUniform( _planes );
1102 ss->addUniform( _shadowNumber );
1103 ss->addUniform( _shadowDistances );
1105 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1106 g->setUseDisplayList(false);
1107 simgear::EffectGeode* eg = new simgear::EffectGeode;
1108 simgear::Effect* effect = simgear::makeEffect("Effects/ambient", true);
1110 SG_LOG(SG_VIEW, SG_ALERT, "Effects/ambient not found");
1113 eg->setEffect( effect );
1114 g->setName( "AmbientQuad" );
1115 eg->setName("AmbientQuad");
1116 eg->setCullingActive(false);
1118 quadCam1->addChild( eg );
1120 g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1121 g->setUseDisplayList(false);
1122 g->setName( "SunlightQuad" );
1123 eg = new simgear::EffectGeode;
1124 effect = simgear::makeEffect("Effects/sunlight", true);
1126 SG_LOG(SG_VIEW, SG_ALERT, "Effects/sunlight not found");
1129 eg->setEffect( effect );
1130 eg->setName("SunlightQuad");
1131 eg->setCullingActive(false);
1133 quadCam1->addChild( eg );
1135 osg::Camera* lightCam = new osg::Camera;
1136 ss = lightCam->getOrCreateStateSet();
1137 ss->addUniform( _planes );
1138 ss->addUniform( info->bufferSize );
1139 lightCam->setName( "LightCamera" );
1140 lightCam->setClearMask(0);
1141 lightCam->setAllowEventFocus(false);
1142 lightCam->setReferenceFrame(osg::Transform::RELATIVE_RF);
1143 lightCam->setRenderOrder(osg::Camera::NESTED_RENDER,1);
1144 lightCam->setViewMatrix(osg::Matrix::identity());
1145 lightCam->setProjectionMatrix(osg::Matrix::identity());
1146 lightCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1147 lightCam->setCullMask( simgear::MODELLIGHT_BIT );
1148 lightCam->setInheritanceMask( osg::CullSettings::ALL_VARIABLES & ~osg::CullSettings::CULL_MASK );
1149 lightCam->addChild( mDeferredRealRoot.get() );
1152 osg::Camera* quadCam2 = new osg::Camera;
1153 quadCam2->setName( "QuadCamera1" );
1154 quadCam2->setClearMask(0);
1155 quadCam2->setAllowEventFocus(false);
1156 quadCam2->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1157 quadCam2->setRenderOrder(osg::Camera::NESTED_RENDER,2);
1158 quadCam2->setViewMatrix(osg::Matrix::identity());
1159 quadCam2->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1160 quadCam2->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1161 ss = quadCam2->getOrCreateStateSet();
1162 ss->addUniform( _ambientFactor );
1163 ss->addUniform( info->projInverse );
1164 ss->addUniform( info->viewInverse );
1165 ss->addUniform( info->view );
1166 ss->addUniform( _sunDiffuse );
1167 ss->addUniform( _sunSpecular );
1168 ss->addUniform( _sunDirection );
1169 ss->addUniform( _fogColor );
1170 ss->addUniform( _fogDensity );
1171 ss->addUniform( _planes );
1173 g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1174 g->setUseDisplayList(false);
1175 g->setName( "FogQuad" );
1176 eg = new simgear::EffectGeode;
1177 effect = simgear::makeEffect("Effects/fog", true);
1179 SG_LOG(SG_VIEW, SG_ALERT, "Effects/fog not found");
1182 eg->setEffect( effect );
1183 eg->setName("FogQuad");
1184 eg->setCullingActive(false);
1186 quadCam2->addChild( eg );
1188 lightingGroup->addChild( _sky->getPreRoot() );
1189 lightingGroup->addChild( _sky->getCloudRoot() );
1190 lightingGroup->addChild( quadCam1 );
1191 lightingGroup->addChild( lightCam );
1192 lightingGroup->addChild( quadCam2 );
1194 camera->addChild( lightingGroup );
1200 FGRenderer::buildDeferredLightingCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc, const FGRenderingPipeline::Stage* stage )
1202 osg::Camera* camera = new osg::Camera;
1203 info->addCamera(stage->name, camera );
1205 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( stage->name, info ) );
1206 camera->setAllowEventFocus(false);
1207 camera->setGraphicsContext(gc);
1208 camera->setViewport(new Viewport);
1209 camera->setName(stage->name+"C");
1210 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1211 camera->setRenderOrder(osg::Camera::NESTED_RENDER, stage->orderNum);
1212 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
1213 camera->setViewport( new osg::Viewport );
1214 buildAttachments(info, camera, stage->name, stage->attachments);
1215 camera->setDrawBuffer(GL_FRONT);
1216 camera->setReadBuffer(GL_FRONT);
1217 camera->setClearColor( osg::Vec4( 0., 0., 0., 1. ) );
1218 camera->setClearMask( GL_COLOR_BUFFER_BIT );
1219 osg::StateSet* ss = camera->getOrCreateStateSet();
1220 ss->setAttribute( new osg::Depth(osg::Depth::LESS, 0.0, 1.0, false) );
1221 ss->addUniform( _depthInColor );
1223 osg::Group* lightingGroup = new osg::Group;
1225 BOOST_FOREACH( osg::ref_ptr<FGRenderingPipeline::Pass> pass, stage->passes ) {
1226 ref_ptr<Node> node = buildPass(info, pass);
1228 lightingGroup->addChild(node);
1231 camera->addChild( lightingGroup );
1237 FGRenderer::buildDeferredPipeline(CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
1238 const osg::Matrix& view,
1239 const osg::Matrix& projection,
1240 osg::GraphicsContext* gc)
1242 return buildCameraFromRenderingPipeline(_pipeline, cgroup, flags, camera, view, projection, gc);
1246 FGRenderer::buildDeferredFullscreenCamera( flightgear::CameraInfo* info, const FGRenderingPipeline::Pass* pass )
1248 osg::Camera* camera = new osg::Camera;
1250 camera->setClearMask( 0 );
1251 camera->setAllowEventFocus(false);
1252 camera->setName(pass->name+"C");
1253 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1254 camera->setRenderOrder(osg::Camera::NESTED_RENDER, pass->orderNum);
1255 camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1256 camera->setViewMatrix(osg::Matrix::identity());
1257 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1259 osg::StateSet* ss = camera->getOrCreateStateSet();
1260 ss->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1261 ss->addUniform( info->projInverse );
1262 ss->addUniform( info->viewInverse );
1263 ss->addUniform( info->view );
1264 ss->addUniform( info->bufferSize );
1265 ss->addUniform( _ambientFactor );
1266 ss->addUniform( _sunDiffuse );
1267 ss->addUniform( _sunSpecular );
1268 ss->addUniform( _sunDirection );
1269 ss->addUniform( _planes );
1270 ss->addUniform( _shadowNumber );
1271 ss->addUniform( _shadowDistances );
1272 ss->addUniform( _fogColor );
1273 ss->addUniform( _fogDensity );
1274 ss->addUniform( _planes );
1276 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1277 g->setUseDisplayList(false);
1278 simgear::EffectGeode* eg = new simgear::EffectGeode;
1279 simgear::Effect* effect = simgear::makeEffect(pass->effect, true);
1281 eg->setEffect( effect );
1284 eg->setName(pass->name+"Quad");
1285 eg->setCullingActive(false);
1287 camera->addChild(eg);
1293 FGRenderer::buildDeferredFullscreenCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc, const FGRenderingPipeline::Stage* stage )
1295 osg::Camera* camera = buildDeferredFullscreenCamera(info, static_cast<const FGRenderingPipeline::Pass*>(stage));
1296 info->addCamera(stage->name, camera, stage->scaleFactor, true);
1298 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback(stage->name, info, stage->needsDuDv) );
1299 camera->setGraphicsContext(gc);
1300 camera->setViewport(new Viewport);
1301 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
1302 buildAttachments(info, camera, stage->name, stage->attachments);
1303 camera->setDrawBuffer(GL_FRONT);
1304 camera->setReadBuffer(GL_FRONT);
1305 camera->setClearColor( osg::Vec4( 1., 1., 1., 1. ) );
1306 camera->setClearMask( GL_COLOR_BUFFER_BIT );
1307 camera->setViewMatrix(osg::Matrix::identity());
1308 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1310 osg::StateSet* ss = camera->getOrCreateStateSet();
1311 if (stage->needsDuDv) {
1312 ss->addUniform( info->du );
1313 ss->addUniform( info->dv );
1320 FGRenderer::buildDeferredDisplayCamera( osg::Camera* camera, flightgear::CameraInfo* info, const std::string& name, osg::GraphicsContext* gc )
1322 camera->setName( "DisplayC" );
1323 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( name, info ) );
1324 camera->setReferenceFrame(Transform::ABSOLUTE_RF);
1325 camera->setAllowEventFocus(false);
1326 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1327 g->setUseDisplayList(false); //DEBUG
1328 simgear::EffectGeode* eg = new simgear::EffectGeode;
1329 simgear::Effect* effect = simgear::makeEffect("Effects/display", true);
1331 SG_LOG(SG_VIEW, SG_ALERT, "Effects/display not found");
1334 eg->setEffect(effect);
1335 eg->setCullingActive(false);
1337 camera->setViewMatrix(osg::Matrix::identity());
1338 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1339 camera->addChild(eg);
1341 osg::StateSet* ss = camera->getOrCreateStateSet();
1342 ss->addUniform( _depthInColor );
1346 FGRenderer::buildStage(CameraInfo* info,
1347 FGRenderingPipeline::Stage* stage,
1348 CameraGroup* cgroup,
1349 osg::Camera* mainCamera,
1350 const osg::Matrix& view, const osg::Matrix& projection, osg::GraphicsContext* gc)
1352 if (!stage->valid())
1355 ref_ptr<Camera> camera;
1356 bool needOffsets = false;
1357 if (stage->type == "geometry") {
1358 camera = buildDeferredGeometryCamera(info, gc, stage->name, stage->attachments);
1360 } else if (stage->type == "lighting-builtin") {
1361 camera = buildDeferredLightingCamera(info, gc, stage->name, stage->attachments);
1363 } else if (stage->type == "lighting") {
1364 camera = buildDeferredLightingCamera(info, gc, stage);
1366 } else if (stage->type == "shadow")
1367 camera = buildDeferredShadowCamera(info, gc, stage->name, stage->attachments);
1368 else if (stage->type == "fullscreen")
1369 camera = buildDeferredFullscreenCamera(info, gc, stage);
1370 else if (stage->type == "display") {
1371 camera = mainCamera;
1372 buildDeferredDisplayCamera(camera, info, stage->name, gc);
1374 throw sg_exception("Stage type is not supported");
1377 cgroup->getViewer()->addSlave(camera, projection, view, false);
1379 cgroup->getViewer()->addSlave(camera, false);
1380 installCullVisitor(camera);
1381 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1382 if (stage->type == "display")
1383 info->addCamera( stage->type, camera, slaveIndex, true );
1384 info->getRenderStageInfo(stage->name).slaveIndex = slaveIndex;
1388 FGRenderer::buildLightingSkyCloudsPass(FGRenderingPipeline::Pass* pass)
1390 Group* group = new Group;
1391 group->addChild( _sky->getPreRoot() );
1392 group->addChild( _sky->getCloudRoot() );
1397 FGRenderer::buildLightingLightsPass(CameraInfo* info, FGRenderingPipeline::Pass* pass)
1399 osg::Camera* lightCam = new osg::Camera;
1400 StateSet* ss = lightCam->getOrCreateStateSet();
1401 ss->addUniform( _planes );
1402 ss->addUniform( info->bufferSize );
1403 lightCam->setName( "LightCamera" );
1404 lightCam->setClearMask(0);
1405 lightCam->setAllowEventFocus(false);
1406 lightCam->setReferenceFrame(osg::Transform::RELATIVE_RF);
1407 lightCam->setRenderOrder(osg::Camera::NESTED_RENDER,pass->orderNum);
1408 lightCam->setViewMatrix(osg::Matrix::identity());
1409 lightCam->setProjectionMatrix(osg::Matrix::identity());
1410 lightCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1411 lightCam->setCullMask( simgear::MODELLIGHT_BIT );
1412 lightCam->setInheritanceMask( osg::CullSettings::ALL_VARIABLES & ~osg::CullSettings::CULL_MASK );
1413 lightCam->addChild( mDeferredRealRoot.get() );
1419 FGRenderer::buildPass(CameraInfo* info, FGRenderingPipeline::Pass* pass)
1425 if (pass->type == "sky-clouds")
1426 node = buildLightingSkyCloudsPass(pass);
1427 else if (pass->type == "fullscreen")
1428 node = buildDeferredFullscreenCamera(info, pass);
1429 else if (pass->type == "lights")
1430 node = buildLightingLightsPass(info, pass);
1432 throw sg_exception("Pass type is not supported");
1434 return node.release();
1438 FGRenderer::buildBuffers(FGRenderingPipeline* rpipe, CameraInfo* info)
1440 for (size_t i = 0; i < rpipe->buffers.size(); ++i) {
1441 osg::ref_ptr<FGRenderingPipeline::Buffer> buffer = rpipe->buffers[i];
1442 if (buffer->valid()) {
1443 bool fullscreen = buffer->width == -1 && buffer->height == -1;
1444 info->addBuffer(buffer->name, buildDeferredBuffer( buffer->internalFormat,
1445 buffer->sourceFormat,
1448 buffer->shadowComparison),
1449 fullscreen ? buffer->scaleFactor : 0.0f);
1451 info->getBuffer(buffer->name)->setTextureSize(buffer->width, buffer->height);
1457 CameraInfo* FGRenderer::buildCameraFromRenderingPipeline(FGRenderingPipeline* rpipe, CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
1458 const osg::Matrix& view, const osg::Matrix& projection, osg::GraphicsContext* gc)
1460 CameraInfo* info = new CameraInfo(flags);
1461 buildBuffers(rpipe, info);
1463 for (size_t i = 0; i < rpipe->stages.size(); ++i) {
1464 osg::ref_ptr<FGRenderingPipeline::Stage> stage = rpipe->stages[i];
1465 buildStage(info, stage, cgroup, camera, view, projection, gc);
1468 cgroup->addCamera(info);
1474 FGRenderer::setupView( void )
1476 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1477 osg::initNotifyLevel();
1479 // The number of polygon-offset "units" to place between layers. In
1480 // principle, one is supposed to be enough. In practice, I find that
1481 // my hardware/driver requires many more.
1482 osg::PolygonOffset::setUnitsMultiplier(1);
1483 osg::PolygonOffset::setFactorMultiplier(1);
1485 // Go full screen if requested ...
1486 if ( fgGetBool("/sim/startup/fullscreen") )
1490 // The sun and moon diameters are scaled down numbers of the
1491 // actual diameters. This was needed to fit both the sun and the
1492 // moon within the distance to the far clip plane.
1493 // Moon diameter: 3,476 kilometers
1494 // Sun diameter: 1,390,000 kilometers
1495 _sky->build( 80000.0, 80000.0,
1497 *globals->get_ephem(),
1498 fgGetNode("/environment", true));
1501 ->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1503 osg::StateSet* stateSet = mRoot->getOrCreateStateSet();
1505 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
1507 stateSet->setAttribute(new osg::Depth(osg::Depth::LESS));
1508 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1510 stateSet->setAttribute(new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01));
1511 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::OFF);
1512 stateSet->setAttribute(new osg::BlendFunc);
1513 stateSet->setMode(GL_BLEND, osg::StateAttribute::OFF);
1515 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
1517 // this will be set below
1518 stateSet->setMode(GL_NORMALIZE, osg::StateAttribute::OFF);
1520 osg::Material* material = new osg::Material;
1521 stateSet->setAttribute(material);
1523 stateSet->setTextureAttribute(0, new osg::TexEnv);
1524 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
1526 osg::Hint* hint = new osg::Hint(GL_FOG_HINT, GL_DONT_CARE);
1527 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/fog"));
1528 stateSet->setAttribute(hint);
1529 hint = new osg::Hint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
1530 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/polygon-smooth"));
1531 stateSet->setAttribute(hint);
1532 hint = new osg::Hint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
1533 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/line-smooth"));
1534 stateSet->setAttribute(hint);
1535 hint = new osg::Hint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
1536 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/point-smooth"));
1537 stateSet->setAttribute(hint);
1538 hint = new osg::Hint(GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE);
1539 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/perspective-correction"));
1540 stateSet->setAttribute(hint);
1542 osg::Group* sceneGroup = new osg::Group;
1543 sceneGroup->addChild(globals->get_scenery()->get_scene_graph());
1544 sceneGroup->setNodeMask(~simgear::BACKGROUND_BIT);
1546 //sceneGroup->addChild(thesky->getCloudRoot());
1548 stateSet = sceneGroup->getOrCreateStateSet();
1549 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
1551 // need to update the light on every frame
1552 // OSG LightSource objects are rather confusing. OSG only supports
1553 // the 10 lights specified by OpenGL itself; if more than one
1554 // LightSource in the scene graph have the same light number, it's
1555 // indeterminate which values will be used to render geometry that
1556 // has that light number enabled. Also, adding children to a
1557 // LightSource is just a shortcut for setting up a state set that
1558 // has the corresponding OpenGL light enabled: a LightSource will
1559 // affect geometry anywhere in the scene graph that has its light
1560 // number enabled in a state set.
1561 LightSource* lightSource = new LightSource;
1562 lightSource->getLight()->setDataVariance(Object::DYNAMIC);
1563 // relative because of CameraView being just a clever transform node
1564 lightSource->setReferenceFrame(osg::LightSource::RELATIVE_RF);
1565 lightSource->setLocalStateSetModes(osg::StateAttribute::ON);
1566 lightSource->setUpdateCallback(new FGLightSourceUpdateCallback);
1567 mRealRoot->addChild(lightSource);
1568 // we need a white diffuse light for the phase of the moon
1569 osg::LightSource* sunLight = new osg::LightSource;
1570 sunLight->getLight()->setDataVariance(Object::DYNAMIC);
1571 sunLight->getLight()->setLightNum(1);
1572 sunLight->setUpdateCallback(new FGLightSourceUpdateCallback(true));
1573 sunLight->setReferenceFrame(osg::LightSource::RELATIVE_RF);
1574 sunLight->setLocalStateSetModes(osg::StateAttribute::ON);
1576 // Hang a StateSet above the sky subgraph in order to turn off
1578 Group* skyGroup = new Group;
1579 StateSet* skySS = skyGroup->getOrCreateStateSet();
1580 skySS->setMode(GL_LIGHT0, StateAttribute::OFF);
1581 skyGroup->addChild(_sky->getPreRoot());
1582 sunLight->addChild(skyGroup);
1583 mRoot->addChild(sceneGroup);
1584 if ( _classicalRenderer )
1585 mRoot->addChild(sunLight);
1587 // Clouds are added to the scene graph later
1588 stateSet = globals->get_scenery()->get_scene_graph()->getOrCreateStateSet();
1589 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
1590 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::ON);
1591 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
1593 // enable disable specular highlights.
1594 // is the place where we might plug in an other fragment shader ...
1595 osg::LightModel* lightModel = new osg::LightModel;
1596 lightModel->setUpdateCallback(new FGLightModelUpdateCallback);
1597 stateSet->setAttribute(lightModel);
1599 // switch to enable wireframe
1600 osg::PolygonMode* polygonMode = new osg::PolygonMode;
1601 polygonMode->setUpdateCallback(new FGWireFrameModeUpdateCallback);
1602 stateSet->setAttributeAndModes(polygonMode);
1604 // scene fog handling
1605 osg::Fog* fog = new osg::Fog;
1606 fog->setUpdateCallback(new FGFogUpdateCallback);
1607 stateSet->setAttributeAndModes(fog);
1608 stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
1611 osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
1614 osg::Geode* geode = new osg::Geode;
1615 geode->addDrawable(new SGPuDrawable);
1616 geode->addDrawable(new SGHUDDrawable);
1617 guiCamera->addChild(geode);
1620 guiCamera->addChild(FGPanelNode::create2DPanelNode());
1623 osg::Switch* sw = new osg::Switch;
1624 sw->setUpdateCallback(new FGScenerySwitchCallback);
1625 sw->addChild(mRoot.get());
1626 mRealRoot->addChild(sw);
1627 // The clouds are attached directly to the scene graph root
1628 // because, in theory, they don't want the same default state set
1629 // as the rest of the scene. This may not be true in practice.
1630 if ( _classicalRenderer ) {
1631 mRealRoot->addChild(_sky->getCloudRoot());
1632 mRealRoot->addChild(FGCreateRedoutNode());
1634 // Attach empty program to the scene root so that shader programs
1635 // don't leak into state sets (effects) that shouldn't have one.
1636 stateSet = mRealRoot->getOrCreateStateSet();
1637 stateSet->setAttributeAndModes(new osg::Program, osg::StateAttribute::ON);
1639 mDeferredRealRoot->addChild( mRealRoot.get() );
1642 // Update all Visuals (redraws anything graphics related)
1644 FGRenderer::update( ) {
1645 if (!(_scenery_loaded->getBoolValue() ||
1646 _scenery_override->getBoolValue()))
1648 _splash_alpha->setDoubleValue(1.0);
1651 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1653 if (_splash_alpha->getDoubleValue()>0.0)
1655 // Fade out the splash screen
1656 const double fade_time = 0.5;
1657 const double fade_steps_per_sec = 10;
1658 double delay_time = SGMiscd::min(fade_time/fade_steps_per_sec,
1659 (SGTimeStamp::now() - _splash_time).toSecs());
1660 _splash_time = SGTimeStamp::now();
1661 double sAlpha = _splash_alpha->getDoubleValue();
1662 sAlpha -= SGMiscd::max(0.0,delay_time/fade_time);
1663 FGScenerySwitchCallback::scenery_enabled = (sAlpha<1.0);
1664 _splash_alpha->setDoubleValue((sAlpha < 0) ? 0.0 : sAlpha);
1667 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
1668 if (!_classicalRenderer ) {
1669 _ambientFactor->set( toOsg(l->scene_ambient()) );
1670 _sunDiffuse->set( toOsg(l->scene_diffuse()) );
1671 _sunSpecular->set( toOsg(l->scene_specular()) );
1672 _sunDirection->set( osg::Vec3f(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]) );
1675 // update fog params
1676 double actual_visibility;
1677 if (_cloud_status->getBoolValue()) {
1678 actual_visibility = _sky->get_visibility();
1680 actual_visibility = _visibility_m->getDoubleValue();
1683 // idle_state is now 1000 meaning we've finished all our
1684 // initializations and are running the main loop, so this will
1685 // now work without seg faulting the system.
1687 FGViewer *current__view = globals->get_current_view();
1688 // Force update of center dependent values ...
1689 current__view->set_dirty();
1691 osg::Camera *camera = viewer->getCamera();
1693 bool skyblend = _skyblend->getBoolValue();
1696 if ( _textures->getBoolValue() ) {
1697 SGVec4f clearColor(l->adj_fog_color());
1698 camera->setClearColor(toOsg(clearColor));
1701 SGVec4f clearColor(l->sky_color());
1702 camera->setClearColor(toOsg(clearColor));
1705 // update fog params if visibility has changed
1706 double visibility_meters = _visibility_m->getDoubleValue();
1707 _sky->set_visibility(visibility_meters);
1709 double altitude_m = _altitude_ft->getDoubleValue() * SG_FEET_TO_METER;
1710 _sky->modify_vis( altitude_m, 0.0 /* time factor, now unused */);
1712 // update the sky dome
1715 // The sun and moon distances are scaled down versions
1716 // of the actual distance to get both the moon and the sun
1717 // within the range of the far clip plane.
1718 // Moon distance: 384,467 kilometers
1719 // Sun distance: 150,000,000 kilometers
1721 double sun_horiz_eff, moon_horiz_eff;
1722 if (_horizon_effect->getBoolValue()) {
1724 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_sun_angle()),
1728 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_moon_angle()),
1732 sun_horiz_eff = moon_horiz_eff = 1.0;
1736 sstate.pos = current__view->getViewPosition();
1737 sstate.pos_geod = current__view->getPosition();
1738 sstate.ori = current__view->getViewOrientation();
1739 sstate.spin = l->get_sun_rotation();
1740 sstate.gst = globals->get_time_params()->getGst();
1741 sstate.sun_dist = 50000.0 * sun_horiz_eff;
1742 sstate.moon_dist = 40000.0 * moon_horiz_eff;
1743 sstate.sun_angle = l->get_sun_angle();
1746 scolor.sky_color = SGVec3f(l->sky_color().data());
1747 scolor.adj_sky_color = SGVec3f(l->adj_sky_color().data());
1748 scolor.fog_color = SGVec3f(l->adj_fog_color().data());
1749 scolor.cloud_color = SGVec3f(l->cloud_color().data());
1750 scolor.sun_angle = l->get_sun_angle();
1751 scolor.moon_angle = l->get_moon_angle();
1753 double delta_time_sec = _sim_delta_sec->getDoubleValue();
1754 _sky->reposition( sstate, *globals->get_ephem(), delta_time_sec );
1755 _sky->repaint( scolor, *globals->get_ephem() );
1758 // shadows->setupShadows(
1759 // current__view->getLongitude_deg(),
1760 // current__view->getLatitude_deg(),
1761 // globals->get_time_params()->getGst(),
1762 // globals->get_ephem()->getSunRightAscension(),
1763 // globals->get_ephem()->getSunDeclination(),
1764 // l->get_sun_angle());
1768 // sgEnviro.setLight(l->adj_fog_color());
1769 // sgEnviro.startOfFrame(current__view->get_view_pos(),
1770 // current__view->get_world_up(),
1771 // current__view->getLongitude_deg(),
1772 // current__view->getLatitude_deg(),
1773 // current__view->getAltitudeASL_ft() * SG_FEET_TO_METER,
1777 // sgEnviro.drawLightning();
1779 // double current_view_origin_airspeed_horiz_kt =
1780 // fgGetDouble("/velocities/airspeed-kt", 0.0)
1781 // * cos( fgGetDouble("/orientation/pitch-deg", 0.0)
1782 // * SGD_DEGREES_TO_RADIANS);
1785 // if( is_internal )
1786 // shadows->endOfFrame();
1788 // need to call the update visitor once
1789 mFrameStamp->setCalendarTime(*globals->get_time_params()->getGmt());
1790 mUpdateVisitor->setViewData(current__view->getViewPosition(),
1791 current__view->getViewOrientation());
1792 SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
1793 mUpdateVisitor->setLight(direction, l->scene_ambient(),
1794 l->scene_diffuse(), l->scene_specular(),
1796 l->get_sun_angle()*SGD_RADIANS_TO_DEGREES);
1797 mUpdateVisitor->setVisibility(actual_visibility);
1798 simgear::GroundLightManager::instance()->update(mUpdateVisitor.get());
1799 osg::Node::NodeMask cullMask = ~simgear::LIGHTS_BITS & ~simgear::PICK_BIT;
1800 cullMask |= simgear::GroundLightManager::instance()
1801 ->getLightNodeMask(mUpdateVisitor.get());
1802 if (_panel_hotspots->getBoolValue())
1803 cullMask |= simgear::PICK_BIT;
1804 CameraGroup::getDefault()->setCameraCullMasks(cullMask);
1805 if ( !_classicalRenderer ) {
1806 _fogColor->set( toOsg( l->adj_fog_color() ) );
1807 _fogDensity->set( float( mUpdateVisitor->getFogExp2Density() ) );
1812 FGRenderer::resize( int width, int height )
1814 int curWidth = _xsize->getIntValue(),
1815 curHeight = _ysize->getIntValue();
1816 SG_LOG(SG_VIEW, SG_DEBUG, "FGRenderer::resize: new size " << width << " x " << height);
1817 if ((curHeight != height) || (curWidth != width)) {
1818 // must guard setting these, or PLIB-PUI fails with too many live interfaces
1819 _xsize->setIntValue(width);
1820 _ysize->setIntValue(height);
1825 FGRenderer::pick(std::vector<SGSceneryPick>& pickList,
1826 const osgGA::GUIEventAdapter* ea)
1828 // wipe out the return ...
1830 typedef osgUtil::LineSegmentIntersector::Intersections Intersections;
1831 Intersections intersections;
1833 if (!computeIntersections(CameraGroup::getDefault(), ea, intersections))
1835 for (Intersections::iterator hit = intersections.begin(),
1836 e = intersections.end();
1839 const osg::NodePath& np = hit->nodePath;
1840 osg::NodePath::const_reverse_iterator npi;
1841 for (npi = np.rbegin(); npi != np.rend(); ++npi) {
1842 SGSceneUserData* ud = SGSceneUserData::getSceneUserData(*npi);
1845 for (unsigned i = 0; i < ud->getNumPickCallbacks(); ++i) {
1846 SGPickCallback* pickCallback = ud->getPickCallback(i);
1849 SGSceneryPick sceneryPick;
1850 sceneryPick.info.local = toSG(hit->getLocalIntersectPoint());
1851 sceneryPick.info.wgs84 = toSG(hit->getWorldIntersectPoint());
1852 sceneryPick.callback = pickCallback;
1853 pickList.push_back(sceneryPick);
1857 return !pickList.empty();
1861 FGRenderer::setViewer(osgViewer::Viewer* viewer_)
1867 FGRenderer::setEventHandler(FGEventHandler* eventHandler_)
1869 eventHandler = eventHandler_;
1873 FGRenderer::addCamera(osg::Camera* camera, bool useSceneData)
1875 mRealRoot->addChild(camera);
1879 FGRenderer::removeCamera(osg::Camera* camera)
1881 mRealRoot->removeChild(camera);
1885 FGRenderer::setPlanes( double zNear, double zFar )
1887 _planes->set( osg::Vec3f( - zFar, - zFar * zNear, zFar - zNear ) );
1891 fgDumpSceneGraphToFile(const char* filename)
1893 return osgDB::writeNodeFile(*mRealRoot.get(), filename);
1897 fgDumpTerrainBranchToFile(const char* filename)
1899 return osgDB::writeNodeFile( *globals->get_scenery()->get_terrain_branch(),
1905 fgDumpNodeToFile(osg::Node* node, const char* filename)
1907 return osgDB::writeNodeFile(*node, filename);
1910 namespace flightgear
1912 using namespace osg;
1914 class VisibleSceneInfoVistor : public NodeVisitor, CullStack
1917 VisibleSceneInfoVistor()
1918 : NodeVisitor(CULL_VISITOR, TRAVERSE_ACTIVE_CHILDREN)
1920 setCullingMode(CullSettings::SMALL_FEATURE_CULLING
1921 | CullSettings::VIEW_FRUSTUM_CULLING);
1922 setComputeNearFarMode(CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1925 VisibleSceneInfoVistor(const VisibleSceneInfoVistor& rhs)
1929 META_NodeVisitor("flightgear","VisibleSceneInfoVistor")
1931 typedef std::map<const std::string,int> InfoMap;
1933 void getNodeInfo(Node* node)
1935 const char* typeName = typeid(*node).name();
1936 classInfo[typeName]++;
1937 const std::string& nodeName = node->getName();
1938 if (!nodeName.empty())
1939 nodeInfo[nodeName]++;
1944 using namespace std;
1945 typedef vector<InfoMap::iterator> FreqVector;
1946 cout << "class info:\n";
1948 for (InfoMap::iterator itr = classInfo.begin(), end = classInfo.end();
1951 classes.push_back(itr);
1952 sort(classes.begin(), classes.end(), freqComp);
1953 for (FreqVector::iterator itr = classes.begin(), end = classes.end();
1956 cout << (*itr)->first << " " << (*itr)->second << "\n";
1958 cout << "\nnode info:\n";
1960 for (InfoMap::iterator itr = nodeInfo.begin(), end = nodeInfo.end();
1963 nodes.push_back(itr);
1965 sort (nodes.begin(), nodes.end(), freqComp);
1966 for (FreqVector::iterator itr = nodes.begin(), end = nodes.end();
1969 cout << (*itr)->first << " " << (*itr)->second << "\n";
1974 void doTraversal(Camera* camera, Node* root, Viewport* viewport)
1976 ref_ptr<RefMatrix> projection
1977 = createOrReuseMatrix(camera->getProjectionMatrix());
1978 ref_ptr<RefMatrix> mv = createOrReuseMatrix(camera->getViewMatrix());
1980 viewport = camera->getViewport();
1982 pushViewport(viewport);
1983 pushProjectionMatrix(projection.get());
1984 pushModelViewMatrix(mv.get(), Transform::ABSOLUTE_RF);
1985 root->accept(*this);
1986 popModelViewMatrix();
1987 popProjectionMatrix();
1993 void apply(Node& node)
2002 void apply(Group& node)
2012 void apply(Transform& node)
2017 ref_ptr<RefMatrix> matrix = createOrReuseMatrix(*getModelViewMatrix());
2018 node.computeLocalToWorldMatrix(*matrix,this);
2019 pushModelViewMatrix(matrix.get(), node.getReferenceFrame());
2022 popModelViewMatrix();
2026 void apply(Camera& camera)
2028 // Save current cull settings
2029 CullSettings saved_cull_settings(*this);
2031 // set cull settings from this Camera
2032 setCullSettings(camera);
2033 // inherit the settings from above
2034 inheritCullSettings(saved_cull_settings, camera.getInheritanceMask());
2036 // set the cull mask.
2037 unsigned int savedTraversalMask = getTraversalMask();
2038 bool mustSetCullMask = (camera.getInheritanceMask()
2039 & osg::CullSettings::CULL_MASK) == 0;
2040 if (mustSetCullMask)
2041 setTraversalMask(camera.getCullMask());
2043 osg::RefMatrix* projection = 0;
2044 osg::RefMatrix* modelview = 0;
2046 if (camera.getReferenceFrame()==osg::Transform::RELATIVE_RF) {
2047 if (camera.getTransformOrder()==osg::Camera::POST_MULTIPLY) {
2048 projection = createOrReuseMatrix(*getProjectionMatrix()
2049 *camera.getProjectionMatrix());
2050 modelview = createOrReuseMatrix(*getModelViewMatrix()
2051 * camera.getViewMatrix());
2053 else { // pre multiply
2054 projection = createOrReuseMatrix(camera.getProjectionMatrix()
2055 * (*getProjectionMatrix()));
2056 modelview = createOrReuseMatrix(camera.getViewMatrix()
2057 * (*getModelViewMatrix()));
2060 // an absolute reference frame
2061 projection = createOrReuseMatrix(camera.getProjectionMatrix());
2062 modelview = createOrReuseMatrix(camera.getViewMatrix());
2064 if (camera.getViewport())
2065 pushViewport(camera.getViewport());
2067 pushProjectionMatrix(projection);
2068 pushModelViewMatrix(modelview, camera.getReferenceFrame());
2072 // restore the previous model view matrix.
2073 popModelViewMatrix();
2075 // restore the previous model view matrix.
2076 popProjectionMatrix();
2078 if (camera.getViewport()) popViewport();
2080 // restore the previous traversal mask settings
2081 if (mustSetCullMask)
2082 setTraversalMask(savedTraversalMask);
2084 // restore the previous cull settings
2085 setCullSettings(saved_cull_settings);
2090 static bool freqComp(const InfoMap::iterator& lhs, const InfoMap::iterator& rhs)
2092 return lhs->second > rhs->second;
2098 bool printVisibleSceneInfo(FGRenderer* renderer)
2100 osgViewer::Viewer* viewer = renderer->getViewer();
2101 VisibleSceneInfoVistor vsv;
2103 if (!viewer->getCamera()->getViewport() && viewer->getNumSlaves() > 0) {
2104 const View::Slave& slave = viewer->getSlave(0);
2105 vp = slave._camera->getViewport();
2107 vsv.doTraversal(viewer->getCamera(), viewer->getSceneData(), vp);
2112 // end of renderer.cxx