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 );
579 _sky->set_minimum_sky_visibility( 0.0 ); // A black sky appears for below that
583 void installCullVisitor(Camera* camera)
585 osgViewer::Renderer* renderer
586 = static_cast<osgViewer::Renderer*>(camera->getRenderer());
587 for (int i = 0; i < 2; ++i) {
588 osgUtil::SceneView* sceneView = renderer->getSceneView(i);
589 #if SG_OSG_VERSION_LESS_THAN(3,0,0)
590 sceneView->setCullVisitor(new simgear::EffectCullVisitor);
592 osg::ref_ptr<osgUtil::CullVisitor::Identifier> identifier;
593 identifier = sceneView->getCullVisitor()->getIdentifier();
594 sceneView->setCullVisitor(new simgear::EffectCullVisitor);
595 sceneView->getCullVisitor()->setIdentifier(identifier.get());
597 identifier = sceneView->getCullVisitorLeft()->getIdentifier();
598 sceneView->setCullVisitorLeft(sceneView->getCullVisitor()->clone());
599 sceneView->getCullVisitorLeft()->setIdentifier(identifier.get());
601 identifier = sceneView->getCullVisitorRight()->getIdentifier();
602 sceneView->setCullVisitorRight(sceneView->getCullVisitor()->clone());
603 sceneView->getCullVisitorRight()->setIdentifier(identifier.get());
609 FGRenderer::buildRenderingPipeline(CameraGroup* cgroup, unsigned flags, Camera* camera,
611 const Matrix& projection,
612 osg::GraphicsContext* gc,
613 bool useMasterSceneData)
615 CameraInfo* info = 0;
616 if (!_classicalRenderer && (flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0)
617 info = buildDeferredPipeline( cgroup, flags, camera, view, projection, gc );
622 if ((flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0)
623 _classicalRenderer = true;
624 return buildClassicalPipeline( cgroup, flags, camera, view, projection, useMasterSceneData );
629 FGRenderer::buildClassicalPipeline(CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
630 const osg::Matrix& view,
631 const osg::Matrix& projection,
632 bool useMasterSceneData)
634 CameraInfo* info = new CameraInfo(flags);
635 // The camera group will always update the camera
636 camera->setReferenceFrame(Transform::ABSOLUTE_RF);
638 Camera* farCamera = 0;
639 if ((flags & (CameraGroup::GUI | CameraGroup::ORTHO)) == 0) {
640 farCamera = new Camera;
641 farCamera->setAllowEventFocus(camera->getAllowEventFocus());
642 farCamera->setGraphicsContext(camera->getGraphicsContext());
643 farCamera->setCullingMode(camera->getCullingMode());
644 farCamera->setInheritanceMask(camera->getInheritanceMask());
645 farCamera->setReferenceFrame(Transform::ABSOLUTE_RF);
646 // Each camera's viewport is written when the window is
647 // resized; if the the viewport isn't copied here, it gets updated
648 // twice and ends up with the wrong value.
649 farCamera->setViewport(simgear::clone(camera->getViewport()));
650 farCamera->setDrawBuffer(camera->getDrawBuffer());
651 farCamera->setReadBuffer(camera->getReadBuffer());
652 farCamera->setRenderTargetImplementation(
653 camera->getRenderTargetImplementation());
654 const Camera::BufferAttachmentMap& bufferMap
655 = camera->getBufferAttachmentMap();
656 if (bufferMap.count(Camera::COLOR_BUFFER) != 0) {
658 Camera::COLOR_BUFFER,
659 bufferMap.find(Camera::COLOR_BUFFER)->second._texture.get());
661 cgroup->getViewer()->addSlave(farCamera, projection, view, useMasterSceneData);
662 installCullVisitor(farCamera);
663 int farSlaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
664 info->addCamera( FAR_CAMERA, farCamera, farSlaveIndex );
665 farCamera->setRenderOrder(Camera::POST_RENDER, farSlaveIndex);
666 camera->setCullMask(camera->getCullMask() & ~simgear::BACKGROUND_BIT);
667 camera->setClearMask(GL_DEPTH_BUFFER_BIT);
669 cgroup->getViewer()->addSlave(camera, projection, view, useMasterSceneData);
670 installCullVisitor(camera);
671 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
672 info->addCamera( MAIN_CAMERA, camera, slaveIndex );
673 camera->setRenderOrder(Camera::POST_RENDER, slaveIndex);
674 cgroup->addCamera(info);
678 class FGDeferredRenderingCameraCullCallback : public osg::NodeCallback {
680 FGDeferredRenderingCameraCullCallback( const std::string& k, CameraInfo* i, bool nd = false ) : kind( k ), info( i ), needsDuDv(nd) {}
681 virtual void operator()( osg::Node *n, osg::NodeVisitor *nv) {
682 simgear::EffectCullVisitor* cv = dynamic_cast<simgear::EffectCullVisitor*>(nv);
683 osg::Camera* camera = static_cast<osg::Camera*>(n);
685 cv->clearBufferList();
686 for (RenderBufferMap::iterator ii = info->buffers.begin(); ii != info->buffers.end(); ++ii) {
687 cv->addBuffer(ii->first, ii->second.texture);
690 if ( !info->getRenderStageInfo(kind).fullscreen )
691 info->setMatrices( camera );
694 osg::Matrix projInverse;
695 info->projInverse->get( projInverse );
697 osg::Vec4 p0 = osg::Vec4( -1.0, -1.0, 0.0, 1.0 ) * projInverse;
698 info->du->set( osg::Vec4( 1.0, -1.0, 0.0, 1.0 ) * projInverse - p0 );
699 info->dv->set( osg::Vec4( -1.0, 1.0, 0.0, 1.0 ) * projInverse - p0 );
702 cv->traverse( *camera );
704 if ( kind == GEOMETRY_CAMERA ) {
705 // Remove transparent bins. They will be renderer in the additional light stage (side effect)
706 osgUtil::RenderStage* renderStage = cv->getRenderStage();
707 osgUtil::RenderBin::RenderBinList& rbl = renderStage->getRenderBinList();
708 for (osgUtil::RenderBin::RenderBinList::iterator rbi = rbl.begin(); rbi != rbl.end(); ) {
709 if (rbi->second->getSortMode() == osgUtil::RenderBin::SORT_BACK_TO_FRONT) {
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))
723 osg::Camera* cascadeCam = static_cast<osg::Camera*>( grp->getChild(i) );
724 osg::Matrixf shadowMatrix = camera->getInverseViewMatrix() *
725 cascadeCam->getViewMatrix() *
726 cascadeCam->getProjectionMatrix() *
727 osg::Matrix::translate(1.0, 1.0, 1.0) *
728 osg::Matrix::scale(0.5f, 0.5f, 0.5f);
730 info->shadowMatrix[i]->set( shadowMatrix );
742 osg::Texture2D* buildDeferredBuffer(GLint internalFormat, GLenum sourceFormat, GLenum sourceType, GLenum wrapMode, bool shadowComparison = false)
744 osg::Texture2D* tex = new osg::Texture2D;
745 tex->setResizeNonPowerOfTwoHint( false );
746 tex->setInternalFormat( internalFormat );
747 tex->setShadowComparison(shadowComparison);
748 if (shadowComparison) {
749 tex->setShadowTextureMode(osg::Texture2D::LUMINANCE);
750 tex->setBorderColor(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
752 tex->setSourceFormat(sourceFormat);
753 tex->setSourceType(sourceType);
754 tex->setFilter( osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR );
755 tex->setFilter( osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR );
756 tex->setWrap( osg::Texture::WRAP_S, (osg::Texture::WrapMode)wrapMode );
757 tex->setWrap( osg::Texture::WRAP_T, (osg::Texture::WrapMode)wrapMode );
761 void attachBufferToCamera( CameraInfo* info, osg::Camera* camera, osg::Camera::BufferComponent c, const std::string& ck, const std::string& bk )
763 camera->attach( c, info->getBuffer(bk) );
764 info->getRenderStageInfo(ck).buffers.insert( std::make_pair( c, bk ) );
767 void buildAttachments(CameraInfo* info, osg::Camera* camera, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments) {
768 BOOST_FOREACH(ref_ptr<FGRenderingPipeline::Attachment> attachment, attachments) {
769 if (attachment->valid())
770 attachBufferToCamera( info, camera, attachment->component, name, attachment->buffer );
774 osg::Camera* FGRenderer::buildDeferredGeometryCamera( CameraInfo* info, osg::GraphicsContext* gc, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments )
776 osg::Camera* camera = new osg::Camera;
777 info->addCamera(name, camera );
779 camera->setCullMask( ~simgear::MODELLIGHT_BIT );
780 camera->setName( "GeometryC" );
781 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
782 camera->setGraphicsContext( gc );
783 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( name, info ) );
784 camera->setClearMask( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
785 camera->setClearColor( osg::Vec4( 0., 0., 0., 0. ) );
786 camera->setClearDepth( 1.0 );
787 camera->setColorMask(true, true, true, true);
788 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
789 camera->setRenderOrder(osg::Camera::NESTED_RENDER, 0);
790 camera->setViewport( new osg::Viewport );
791 buildAttachments(info, camera, name, attachments);
792 camera->setDrawBuffer(GL_FRONT);
793 camera->setReadBuffer(GL_FRONT);
795 osg::StateSet* ss = camera->getOrCreateStateSet();
796 ss->addUniform( _depthInColor );
798 camera->addChild( mDeferredRealRoot.get() );
803 static void setShadowCascadeStateSet( osg::Camera* cam ) {
804 osg::StateSet* ss = cam->getOrCreateStateSet();
805 ss->setAttribute( new osg::PolygonOffset( 1.1f, 5.0f ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
806 ss->setMode( GL_POLYGON_OFFSET_FILL, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
807 ss->setRenderBinDetails( 0, "RenderBin", osg::StateSet::OVERRIDE_RENDERBIN_DETAILS );
808 ss->setAttributeAndModes( new osg::AlphaFunc( osg::AlphaFunc::GREATER, 0.05 ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
809 ss->setAttributeAndModes( new osg::ColorMask( false, false, false, false ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
810 ss->setAttributeAndModes( new osg::CullFace( osg::CullFace::FRONT ), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
811 osg::Program* program = new osg::Program;
812 ss->setAttribute( program, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
813 ss->setMode( GL_LIGHTING, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
814 ss->setMode( GL_BLEND, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
815 //ss->setTextureMode( 0, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
816 ss->setTextureMode( 0, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
817 ss->setTextureMode( 1, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
818 ss->setTextureMode( 1, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
819 ss->setTextureMode( 2, GL_TEXTURE_2D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
820 ss->setTextureMode( 2, GL_TEXTURE_3D, osg::StateAttribute::OVERRIDE | osg::StateAttribute::OFF );
823 static osg::Camera* createShadowCascadeCamera( int no, int cascadeSize ) {
824 osg::Camera* cascadeCam = new osg::Camera;
825 setShadowCascadeStateSet( cascadeCam );
827 std::ostringstream oss;
828 oss << "CascadeCamera" << (no + 1);
829 cascadeCam->setName( oss.str() );
830 cascadeCam->setClearMask(0);
831 cascadeCam->setCullMask( simgear::CASTSHADOW_BIT );
832 cascadeCam->setCullingMode( cascadeCam->getCullingMode() | osg::CullSettings::SMALL_FEATURE_CULLING );
833 cascadeCam->setAllowEventFocus(false);
834 cascadeCam->setReferenceFrame(osg::Transform::ABSOLUTE_RF_INHERIT_VIEWPOINT);
835 cascadeCam->setRenderOrder(osg::Camera::NESTED_RENDER);
836 cascadeCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
837 cascadeCam->setViewport( int( no / 2 ) * cascadeSize, (no & 1) * cascadeSize, cascadeSize, cascadeSize );
841 osg::Camera* FGRenderer::buildDeferredShadowCamera( CameraInfo* info, osg::GraphicsContext* gc, const std::string& name, const std::vector<ref_ptr<FGRenderingPipeline::Attachment> > &attachments )
843 osg::Camera* mainShadowCamera = new osg::Camera;
844 info->addCamera(name, mainShadowCamera, 0.0f );
846 mainShadowCamera->setName( "ShadowC" );
847 mainShadowCamera->setClearMask( GL_DEPTH_BUFFER_BIT );
848 mainShadowCamera->setClearDepth( 1.0 );
849 mainShadowCamera->setAllowEventFocus(false);
850 mainShadowCamera->setGraphicsContext(gc);
851 mainShadowCamera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
852 buildAttachments(info, mainShadowCamera, name, attachments);
853 mainShadowCamera->setComputeNearFarMode(osg::Camera::DO_NOT_COMPUTE_NEAR_FAR);
854 mainShadowCamera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
855 mainShadowCamera->setProjectionMatrix(osg::Matrix::identity());
856 mainShadowCamera->setCullingMode( osg::CullSettings::NO_CULLING );
857 mainShadowCamera->setViewport( 0, 0, _shadowMapSize, _shadowMapSize );
858 mainShadowCamera->setDrawBuffer(GL_FRONT);
859 mainShadowCamera->setReadBuffer(GL_FRONT);
860 mainShadowCamera->setRenderOrder(Camera::NESTED_RENDER, 1);
862 osg::Switch* shadowSwitch = new osg::Switch;
863 mainShadowCamera->addChild( shadowSwitch );
865 for (int i = 0; i < 4; ++i ) {
866 osg::Camera* cascadeCam = createShadowCascadeCamera( i, _shadowMapSize/2 );
867 cascadeCam->addChild( mDeferredRealRoot.get() );
868 shadowSwitch->addChild( cascadeCam );
870 if (fgGetBool("/sim/rendering/shadows/enabled", true))
871 shadowSwitch->setAllChildrenOn();
873 shadowSwitch->setAllChildrenOff();
875 return mainShadowCamera;
878 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)
880 osg::Camera* cascade = static_cast<osg::Camera*>( grp->getChild(idx) );
881 osg::Matrixd &viewMatrix = cascade->getViewMatrix();
882 osg::Matrixd &projectionMatrix = cascade->getProjectionMatrix();
884 osg::BoundingSphere bs;
885 bs.expandBy(osg::Vec3(left,bottom,-zNear) * f1);
886 bs.expandBy(osg::Vec3(right,top,-zNear) * f2);
887 bs.expandBy(osg::Vec3(left,bottom,-zNear) * f2);
888 bs.expandBy(osg::Vec3(right,top,-zNear) * f1);
890 osg::Vec4 aim = osg::Vec4(bs.center(), 1.0) * camera->getInverseViewMatrix();
892 projectionMatrix.makeOrtho( -bs.radius(), bs.radius(), -bs.radius(), bs.radius(), 1., 15000.0 );
893 osg::Vec3 position( aim.x(), aim.y(), aim.z() );
894 viewMatrix.makeLookAt( position + (getSunDirection() * 10000.0), position, position );
897 osg::Vec3 FGRenderer::getSunDirection() const
900 _sunDirection->get( val );
904 void FGRenderer::updateShadowCamera(const CameraInfo* info, const osg::Vec3d& position)
906 ref_ptr<Camera> mainShadowCamera = info->getCamera( SHADOW_CAMERA );
907 if (mainShadowCamera.valid()) {
908 ref_ptr<Switch> shadowSwitch = mainShadowCamera->getChild( 0 )->asSwitch();
909 osg::Vec3d up = position,
910 dir = getSunDirection();
913 // cos(100 deg) == -0.17
914 if (up * dir < -0.17 || !fgGetBool("/sim/rendering/shadows/enabled", true)) {
915 shadowSwitch->setAllChildrenOff();
917 double left,right,bottom,top,zNear,zFar;
918 ref_ptr<Camera> camera = info->getCamera(GEOMETRY_CAMERA);
919 camera->getProjectionMatrix().getFrustum(left,right,bottom,top,zNear,zFar);
921 shadowSwitch->setAllChildrenOn();
922 if (_numCascades == 1) {
923 osg::Camera* cascadeCam = static_cast<osg::Camera*>( shadowSwitch->getChild(0) );
924 cascadeCam->setViewport( 0, 0, _shadowMapSize, _shadowMapSize );
926 for (int no = 0; no < 4; ++no) {
927 osg::Camera* cascadeCam = static_cast<osg::Camera*>( shadowSwitch->getChild(no) );
928 cascadeCam->setViewport( int( no / 2 ) * (_shadowMapSize/2), (no & 1) * (_shadowMapSize/2), (_shadowMapSize/2), (_shadowMapSize/2) );
931 updateShadowCascade(info, camera, shadowSwitch, 0, left, right, bottom, top, zNear, 1.0, _cascadeFar[0]/zNear);
932 if (_numCascades > 1) {
933 shadowSwitch->setValue(1, true);
934 updateShadowCascade(info, camera, shadowSwitch, 1, left, right, bottom, top, zNear, _cascadeFar[0]/zNear, _cascadeFar[1]/zNear);
936 shadowSwitch->setValue(1, false);
938 if (_numCascades > 2) {
939 shadowSwitch->setValue(2, true);
940 updateShadowCascade(info, camera, shadowSwitch, 2, left, right, bottom, top, zNear, _cascadeFar[1]/zNear, _cascadeFar[2]/zNear);
942 shadowSwitch->setValue(2, false);
944 if (_numCascades > 3) {
945 shadowSwitch->setValue(3, true);
946 updateShadowCascade(info, camera, shadowSwitch, 3, left, right, bottom, top, zNear, _cascadeFar[2]/zNear, _cascadeFar[3]/zNear);
948 shadowSwitch->setValue(3, false);
951 osg::Matrixd &viewMatrix = mainShadowCamera->getViewMatrix();
953 osg::Vec4 aim = osg::Vec4( 0.0, 0.0, 0.0, 1.0 ) * camera->getInverseViewMatrix();
955 osg::Vec3 position( aim.x(), aim.y(), aim.z() );
956 viewMatrix.makeLookAt( position, position + (getSunDirection() * 10000.0), position );
962 void FGRenderer::updateShadowMapSize(int mapSize)
964 if ( ((~( mapSize-1 )) & mapSize) != mapSize ) {
965 SG_LOG( SG_VIEW, SG_ALERT, "Map size is not a power of two" );
968 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
969 ii != CameraGroup::getDefault()->camerasEnd();
972 CameraInfo* info = ii->get();
973 Camera* camera = info->getCamera(SHADOW_CAMERA);
974 if (camera == 0) continue;
976 Texture2D* tex = info->getBuffer("shadow");
977 if (tex == 0) continue;
979 tex->setTextureSize( mapSize, mapSize );
980 tex->dirtyTextureObject();
982 Viewport* vp = camera->getViewport();
983 vp->width() = mapSize;
984 vp->height() = mapSize;
986 osgViewer::Renderer* renderer
987 = static_cast<osgViewer::Renderer*>(camera->getRenderer());
988 for (int i = 0; i < 2; ++i) {
989 osgUtil::SceneView* sceneView = renderer->getSceneView(i);
990 sceneView->getRenderStage()->setFrameBufferObject(0);
991 sceneView->getRenderStage()->setCameraRequiresSetUp(true);
992 if (sceneView->getRenderStageLeft()) {
993 sceneView->getRenderStageLeft()->setFrameBufferObject(0);
994 sceneView->getRenderStageLeft()->setCameraRequiresSetUp(true);
996 if (sceneView->getRenderStageRight()) {
997 sceneView->getRenderStageRight()->setFrameBufferObject(0);
998 sceneView->getRenderStageRight()->setCameraRequiresSetUp(true);
1002 int cascadeSize = mapSize / 2;
1003 Group* grp = camera->getChild(0)->asGroup();
1004 for (int i = 0; i < 4; ++i ) {
1005 Camera* cascadeCam = static_cast<Camera*>( grp->getChild(i) );
1006 cascadeCam->setViewport( int( i / 2 ) * cascadeSize, (i & 1) * cascadeSize, cascadeSize, cascadeSize );
1009 _shadowMapSize = mapSize;
1013 void FGRenderer::enableShadows(bool enabled)
1015 for ( CameraGroup::CameraIterator ii = CameraGroup::getDefault()->camerasBegin();
1016 ii != CameraGroup::getDefault()->camerasEnd();
1019 CameraInfo* info = ii->get();
1020 Camera* camera = info->getCamera(SHADOW_CAMERA);
1021 if (camera == 0) continue;
1023 osg::Switch* shadowSwitch = camera->getChild(0)->asSwitch();
1025 shadowSwitch->setAllChildrenOn();
1027 shadowSwitch->setAllChildrenOff();
1031 void FGRenderer::updateCascadeFar(int index, float far_m)
1033 if (index < 0 || index > 3)
1035 _cascadeFar[index] = far_m;
1036 _shadowDistances->set( osg::Vec4f(_cascadeFar[0], _cascadeFar[1], _cascadeFar[2], _cascadeFar[3]) );
1039 void FGRenderer::updateCascadeNumber(size_t num)
1041 if (num < 1 || num > 4)
1044 _shadowNumber->set( (int)_numCascades );
1047 class DebugPassListener : public SGPropertyChangeListener {
1049 DebugPassListener(osg::Switch* sw, int i) : _switch(sw), _index(i) {}
1050 virtual void valueChanged(SGPropertyNode* node) {
1051 _switch->setValue(_index, node->getBoolValue());
1055 osg::ref_ptr<osg::Switch> _switch;
1060 FGRenderer::buildDeferredLightingCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc, const FGRenderingPipeline::Stage* stage )
1062 osg::Camera* camera = new osg::Camera;
1063 info->addCamera(stage->name, camera );
1065 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( stage->name, info ) );
1066 camera->setAllowEventFocus(false);
1067 camera->setGraphicsContext(gc);
1068 camera->setViewport(new Viewport);
1069 camera->setName(stage->name+"C");
1070 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1071 camera->setRenderOrder(osg::Camera::NESTED_RENDER, stage->orderNum);
1072 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
1073 camera->setViewport( new osg::Viewport );
1074 buildAttachments(info, camera, stage->name, stage->attachments);
1075 camera->setDrawBuffer(GL_FRONT);
1076 camera->setReadBuffer(GL_FRONT);
1077 camera->setClearColor( osg::Vec4( 0.5, 0.5, 0.5, 1. ) );
1078 camera->setClearMask( GL_COLOR_BUFFER_BIT );
1079 osg::StateSet* ss = camera->getOrCreateStateSet();
1080 ss->setAttribute( new osg::Depth(osg::Depth::LESS, 0.0, 1.0, false) );
1081 ss->addUniform( _depthInColor );
1083 osg::Switch* lightingGroup = new osg::Switch;
1085 BOOST_FOREACH( osg::ref_ptr<FGRenderingPipeline::Pass> pass, stage->passes ) {
1086 ref_ptr<Node> node = buildPass(info, pass);
1088 lightingGroup->addChild(node);
1089 if (!pass->debugProperty.empty()) {
1090 lightingGroup->setValue(lightingGroup->getNumChildren()-1, fgGetBool(pass->debugProperty));
1091 fgAddChangeListener(new DebugPassListener(lightingGroup, lightingGroup->getNumChildren()-1), pass->debugProperty);
1096 camera->addChild( lightingGroup );
1102 FGRenderer::buildDeferredPipeline(CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
1103 const osg::Matrix& view,
1104 const osg::Matrix& projection,
1105 osg::GraphicsContext* gc)
1107 return buildCameraFromRenderingPipeline(_pipeline, cgroup, flags, camera, view, projection, gc);
1111 FGRenderer::buildDeferredFullscreenCamera( flightgear::CameraInfo* info, const FGRenderingPipeline::Pass* pass )
1113 osg::Camera* camera = new osg::Camera;
1115 camera->setClearMask( 0 );
1116 camera->setAllowEventFocus(false);
1117 camera->setName(pass->name+"C");
1118 camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
1119 camera->setRenderOrder(osg::Camera::NESTED_RENDER, pass->orderNum);
1120 camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1121 camera->setViewMatrix(osg::Matrix::identity());
1122 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1124 osg::StateSet* ss = camera->getOrCreateStateSet();
1125 ss->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1126 ss->addUniform( info->projInverse );
1127 ss->addUniform( info->viewInverse );
1128 ss->addUniform( info->view );
1129 ss->addUniform( info->bufferSize );
1130 ss->addUniform( info->worldPosCart );
1131 ss->addUniform( info->worldPosGeod );
1132 ss->addUniform( info->shadowMatrix[0] );
1133 ss->addUniform( info->shadowMatrix[1] );
1134 ss->addUniform( info->shadowMatrix[2] );
1135 ss->addUniform( info->shadowMatrix[3] );
1136 ss->addUniform( _ambientFactor );
1137 ss->addUniform( _sunDiffuse );
1138 ss->addUniform( _sunSpecular );
1139 ss->addUniform( _sunDirection );
1140 ss->addUniform( _planes );
1141 ss->addUniform( _shadowNumber );
1142 ss->addUniform( _shadowDistances );
1143 ss->addUniform( _fogColor );
1144 ss->addUniform( _fogDensity );
1146 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1147 g->setUseDisplayList(false);
1148 simgear::EffectGeode* eg = new simgear::EffectGeode;
1149 simgear::Effect* effect = simgear::makeEffect(pass->effect, true);
1151 eg->setEffect( effect );
1154 eg->setName(pass->name+"Quad");
1155 eg->setCullingActive(false);
1157 camera->addChild(eg);
1163 FGRenderer::buildDeferredFullscreenCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc, const FGRenderingPipeline::Stage* stage )
1165 osg::Camera* camera = buildDeferredFullscreenCamera(info, static_cast<const FGRenderingPipeline::Pass*>(stage));
1166 info->addCamera(stage->name, camera, stage->scaleFactor, true);
1168 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback(stage->name, info, stage->needsDuDv) );
1169 camera->setGraphicsContext(gc);
1170 camera->setViewport(new Viewport);
1171 camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
1172 buildAttachments(info, camera, stage->name, stage->attachments);
1173 camera->setDrawBuffer(GL_FRONT);
1174 camera->setReadBuffer(GL_FRONT);
1175 camera->setClearColor( osg::Vec4( 1., 1., 1., 1. ) );
1176 camera->setClearMask( GL_COLOR_BUFFER_BIT );
1177 camera->setViewMatrix(osg::Matrix::identity());
1178 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1180 osg::StateSet* ss = camera->getOrCreateStateSet();
1181 if (stage->needsDuDv) {
1182 ss->addUniform( info->du );
1183 ss->addUniform( info->dv );
1190 FGRenderer::buildDeferredDisplayCamera( osg::Camera* camera, flightgear::CameraInfo* info, const std::string& name, osg::GraphicsContext* gc )
1192 camera->setName( "DisplayC" );
1193 camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( name, info ) );
1194 camera->setReferenceFrame(Transform::ABSOLUTE_RF);
1195 camera->setAllowEventFocus(false);
1196 osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
1197 g->setUseDisplayList(false); //DEBUG
1198 simgear::EffectGeode* eg = new simgear::EffectGeode;
1199 simgear::Effect* effect = simgear::makeEffect("Effects/display", true);
1201 SG_LOG(SG_VIEW, SG_ALERT, "Effects/display not found");
1204 eg->setEffect(effect);
1205 eg->setCullingActive(false);
1207 camera->setViewMatrix(osg::Matrix::identity());
1208 camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
1209 camera->addChild(eg);
1211 osg::StateSet* ss = camera->getOrCreateStateSet();
1212 ss->addUniform( _depthInColor );
1216 FGRenderer::buildStage(CameraInfo* info,
1217 FGRenderingPipeline::Stage* stage,
1218 CameraGroup* cgroup,
1219 osg::Camera* mainCamera,
1220 const osg::Matrix& view, const osg::Matrix& projection, osg::GraphicsContext* gc)
1222 if (!stage->valid())
1225 ref_ptr<Camera> camera;
1226 bool needOffsets = false;
1227 if (stage->type == "geometry") {
1228 camera = buildDeferredGeometryCamera(info, gc, stage->name, stage->attachments);
1230 } else if (stage->type == "lighting") {
1231 camera = buildDeferredLightingCamera(info, gc, stage);
1233 } else if (stage->type == "shadow")
1234 camera = buildDeferredShadowCamera(info, gc, stage->name, stage->attachments);
1235 else if (stage->type == "fullscreen")
1236 camera = buildDeferredFullscreenCamera(info, gc, stage);
1237 else if (stage->type == "display") {
1238 camera = mainCamera;
1239 buildDeferredDisplayCamera(camera, info, stage->name, gc);
1241 throw sg_exception("Stage type is not supported");
1244 cgroup->getViewer()->addSlave(camera, projection, view, false);
1246 cgroup->getViewer()->addSlave(camera, false);
1247 installCullVisitor(camera);
1248 int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
1249 if (stage->type == "display")
1250 info->addCamera( stage->type, camera, slaveIndex, true );
1251 info->getRenderStageInfo(stage->name).slaveIndex = slaveIndex;
1255 FGRenderer::buildLightingSkyCloudsPass(FGRenderingPipeline::Pass* pass)
1257 Group* group = new Group;
1258 group->addChild( _sky->getPreRoot() );
1259 group->addChild( _sky->getCloudRoot() );
1264 FGRenderer::buildLightingLightsPass(CameraInfo* info, FGRenderingPipeline::Pass* pass)
1266 osg::Camera* lightCam = new osg::Camera;
1267 StateSet* ss = lightCam->getOrCreateStateSet();
1268 ss->addUniform( _planes );
1269 ss->addUniform( info->bufferSize );
1270 lightCam->setName( "LightCamera" );
1271 lightCam->setClearMask(0);
1272 lightCam->setAllowEventFocus(false);
1273 lightCam->setReferenceFrame(osg::Transform::RELATIVE_RF);
1274 lightCam->setRenderOrder(osg::Camera::NESTED_RENDER,pass->orderNum);
1275 lightCam->setViewMatrix(osg::Matrix::identity());
1276 lightCam->setProjectionMatrix(osg::Matrix::identity());
1277 lightCam->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1278 lightCam->setCullMask( simgear::MODELLIGHT_BIT | simgear::PANEL2D_BIT | simgear::PERMANENTLIGHT_BIT);
1279 lightCam->setInheritanceMask( osg::CullSettings::ALL_VARIABLES & ~osg::CullSettings::CULL_MASK );
1280 lightCam->addChild( mDeferredRealRoot.get() );
1286 FGRenderer::buildPass(CameraInfo* info, FGRenderingPipeline::Pass* pass)
1292 if (pass->type == "sky-clouds")
1293 node = buildLightingSkyCloudsPass(pass);
1294 else if (pass->type == "fullscreen")
1295 node = buildDeferredFullscreenCamera(info, pass);
1296 else if (pass->type == "lights")
1297 node = buildLightingLightsPass(info, pass);
1299 throw sg_exception("Pass type is not supported");
1301 return node.release();
1305 FGRenderer::buildBuffers(FGRenderingPipeline* rpipe, CameraInfo* info)
1307 for (size_t i = 0; i < rpipe->buffers.size(); ++i) {
1308 osg::ref_ptr<FGRenderingPipeline::Buffer> buffer = rpipe->buffers[i];
1309 if (buffer->valid()) {
1310 bool fullscreen = buffer->width == -1 && buffer->height == -1;
1311 info->addBuffer(buffer->name, buildDeferredBuffer( buffer->internalFormat,
1312 buffer->sourceFormat,
1315 buffer->shadowComparison),
1316 fullscreen ? buffer->scaleFactor : 0.0f);
1318 info->getBuffer(buffer->name)->setTextureSize(buffer->width, buffer->height);
1324 CameraInfo* FGRenderer::buildCameraFromRenderingPipeline(FGRenderingPipeline* rpipe, CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
1325 const osg::Matrix& view, const osg::Matrix& projection, osg::GraphicsContext* gc)
1327 CameraInfo* info = new CameraInfo(flags);
1328 buildBuffers(rpipe, info);
1330 for (size_t i = 0; i < rpipe->stages.size(); ++i) {
1331 osg::ref_ptr<FGRenderingPipeline::Stage> stage = rpipe->stages[i];
1332 buildStage(info, stage, cgroup, camera, view, projection, gc);
1335 cgroup->addCamera(info);
1341 FGRenderer::setupView( void )
1343 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1344 osg::initNotifyLevel();
1346 // The number of polygon-offset "units" to place between layers. In
1347 // principle, one is supposed to be enough. In practice, I find that
1348 // my hardware/driver requires many more.
1349 osg::PolygonOffset::setUnitsMultiplier(1);
1350 osg::PolygonOffset::setFactorMultiplier(1);
1352 // Go full screen if requested ...
1353 if ( fgGetBool("/sim/startup/fullscreen") )
1357 // The sun and moon diameters are scaled down numbers of the
1358 // actual diameters. This was needed to fit both the sun and the
1359 // moon within the distance to the far clip plane.
1360 // Moon diameter: 3,476 kilometers
1361 // Sun diameter: 1,390,000 kilometers
1362 _sky->build( 80000.0, 80000.0,
1364 *globals->get_ephem(),
1365 fgGetNode("/environment", true));
1368 ->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1370 osg::StateSet* stateSet = mRoot->getOrCreateStateSet();
1372 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
1374 stateSet->setAttribute(new osg::Depth(osg::Depth::LESS));
1375 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
1377 stateSet->setAttribute(new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01));
1378 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::OFF);
1379 stateSet->setAttribute(new osg::BlendFunc);
1380 stateSet->setMode(GL_BLEND, osg::StateAttribute::OFF);
1382 stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
1384 // this will be set below
1385 stateSet->setMode(GL_NORMALIZE, osg::StateAttribute::OFF);
1387 osg::Material* material = new osg::Material;
1388 stateSet->setAttribute(material);
1390 stateSet->setTextureAttribute(0, new osg::TexEnv);
1391 stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
1393 osg::Hint* hint = new osg::Hint(GL_FOG_HINT, GL_DONT_CARE);
1394 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/fog"));
1395 stateSet->setAttribute(hint);
1396 hint = new osg::Hint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
1397 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/polygon-smooth"));
1398 stateSet->setAttribute(hint);
1399 hint = new osg::Hint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
1400 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/line-smooth"));
1401 stateSet->setAttribute(hint);
1402 hint = new osg::Hint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
1403 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/point-smooth"));
1404 stateSet->setAttribute(hint);
1405 hint = new osg::Hint(GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE);
1406 hint->setUpdateCallback(new FGHintUpdateCallback("/sim/rendering/perspective-correction"));
1407 stateSet->setAttribute(hint);
1409 osg::Group* sceneGroup = new osg::Group;
1410 sceneGroup->addChild(globals->get_scenery()->get_scene_graph());
1411 sceneGroup->setNodeMask(~simgear::BACKGROUND_BIT);
1413 //sceneGroup->addChild(thesky->getCloudRoot());
1415 stateSet = sceneGroup->getOrCreateStateSet();
1416 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
1418 // need to update the light on every frame
1419 // OSG LightSource objects are rather confusing. OSG only supports
1420 // the 10 lights specified by OpenGL itself; if more than one
1421 // LightSource in the scene graph have the same light number, it's
1422 // indeterminate which values will be used to render geometry that
1423 // has that light number enabled. Also, adding children to a
1424 // LightSource is just a shortcut for setting up a state set that
1425 // has the corresponding OpenGL light enabled: a LightSource will
1426 // affect geometry anywhere in the scene graph that has its light
1427 // number enabled in a state set.
1428 LightSource* lightSource = new LightSource;
1429 lightSource->getLight()->setDataVariance(Object::DYNAMIC);
1430 // relative because of CameraView being just a clever transform node
1431 lightSource->setReferenceFrame(osg::LightSource::RELATIVE_RF);
1432 lightSource->setLocalStateSetModes(osg::StateAttribute::ON);
1433 lightSource->setUpdateCallback(new FGLightSourceUpdateCallback);
1434 mRealRoot->addChild(lightSource);
1435 // we need a white diffuse light for the phase of the moon
1436 osg::LightSource* sunLight = new osg::LightSource;
1437 sunLight->getLight()->setDataVariance(Object::DYNAMIC);
1438 sunLight->getLight()->setLightNum(1);
1439 sunLight->setUpdateCallback(new FGLightSourceUpdateCallback(true));
1440 sunLight->setReferenceFrame(osg::LightSource::RELATIVE_RF);
1441 sunLight->setLocalStateSetModes(osg::StateAttribute::ON);
1443 // Hang a StateSet above the sky subgraph in order to turn off
1445 Group* skyGroup = new Group;
1446 StateSet* skySS = skyGroup->getOrCreateStateSet();
1447 skySS->setMode(GL_LIGHT0, StateAttribute::OFF);
1448 skyGroup->addChild(_sky->getPreRoot());
1449 sunLight->addChild(skyGroup);
1450 mRoot->addChild(sceneGroup);
1451 if ( _classicalRenderer )
1452 mRoot->addChild(sunLight);
1454 // Clouds are added to the scene graph later
1455 stateSet = globals->get_scenery()->get_scene_graph()->getOrCreateStateSet();
1456 stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
1457 stateSet->setMode(GL_LIGHTING, osg::StateAttribute::ON);
1458 stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
1460 // enable disable specular highlights.
1461 // is the place where we might plug in an other fragment shader ...
1462 osg::LightModel* lightModel = new osg::LightModel;
1463 lightModel->setUpdateCallback(new FGLightModelUpdateCallback);
1464 stateSet->setAttribute(lightModel);
1466 // switch to enable wireframe
1467 osg::PolygonMode* polygonMode = new osg::PolygonMode;
1468 polygonMode->setUpdateCallback(new FGWireFrameModeUpdateCallback);
1469 stateSet->setAttributeAndModes(polygonMode);
1471 // scene fog handling
1472 osg::Fog* fog = new osg::Fog;
1473 fog->setUpdateCallback(new FGFogUpdateCallback);
1474 stateSet->setAttributeAndModes(fog);
1475 stateSet->setUpdateCallback(new FGFogEnableUpdateCallback);
1478 osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
1481 osg::Geode* geode = new osg::Geode;
1482 geode->addDrawable(new SGPuDrawable);
1483 geode->addDrawable(new SGHUDDrawable);
1484 guiCamera->addChild(geode);
1487 guiCamera->addChild(FGPanelNode::create2DPanelNode());
1490 osg::Switch* sw = new osg::Switch;
1491 sw->setUpdateCallback(new FGScenerySwitchCallback);
1492 sw->addChild(mRoot.get());
1493 mRealRoot->addChild(sw);
1494 // The clouds are attached directly to the scene graph root
1495 // because, in theory, they don't want the same default state set
1496 // as the rest of the scene. This may not be true in practice.
1497 if ( _classicalRenderer ) {
1498 mRealRoot->addChild(_sky->getCloudRoot());
1499 mRealRoot->addChild(FGCreateRedoutNode());
1501 // Attach empty program to the scene root so that shader programs
1502 // don't leak into state sets (effects) that shouldn't have one.
1503 stateSet = mRealRoot->getOrCreateStateSet();
1504 stateSet->setAttributeAndModes(new osg::Program, osg::StateAttribute::ON);
1506 mDeferredRealRoot->addChild( mRealRoot.get() );
1509 // Update all Visuals (redraws anything graphics related)
1511 FGRenderer::update( ) {
1512 if (!(_scenery_loaded->getBoolValue() ||
1513 _scenery_override->getBoolValue()))
1515 _splash_alpha->setDoubleValue(1.0);
1518 osgViewer::Viewer* viewer = globals->get_renderer()->getViewer();
1520 if (_splash_alpha->getDoubleValue()>0.0)
1522 // Fade out the splash screen
1523 const double fade_time = 0.5;
1524 const double fade_steps_per_sec = 10;
1525 double delay_time = SGMiscd::min(fade_time/fade_steps_per_sec,
1526 (SGTimeStamp::now() - _splash_time).toSecs());
1527 _splash_time = SGTimeStamp::now();
1528 double sAlpha = _splash_alpha->getDoubleValue();
1529 sAlpha -= SGMiscd::max(0.0,delay_time/fade_time);
1530 FGScenerySwitchCallback::scenery_enabled = (sAlpha<1.0);
1531 _splash_alpha->setDoubleValue((sAlpha < 0) ? 0.0 : sAlpha);
1534 FGLight *l = static_cast<FGLight*>(globals->get_subsystem("lighting"));
1535 if (!_classicalRenderer ) {
1536 _ambientFactor->set( toOsg(l->scene_ambient()) );
1537 _sunDiffuse->set( toOsg(l->scene_diffuse()) );
1538 _sunSpecular->set( toOsg(l->scene_specular()) );
1539 _sunDirection->set( osg::Vec3f(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]) );
1542 // update fog params
1543 double actual_visibility;
1544 if (_cloud_status->getBoolValue()) {
1545 actual_visibility = _sky->get_visibility();
1547 actual_visibility = _visibility_m->getDoubleValue();
1550 // idle_state is now 1000 meaning we've finished all our
1551 // initializations and are running the main loop, so this will
1552 // now work without seg faulting the system.
1554 FGViewer *current__view = globals->get_current_view();
1555 // Force update of center dependent values ...
1556 current__view->set_dirty();
1558 osg::Camera *camera = viewer->getCamera();
1560 bool skyblend = _skyblend->getBoolValue();
1563 if ( _textures->getBoolValue() ) {
1564 SGVec4f clearColor(l->adj_fog_color());
1565 camera->setClearColor(toOsg(clearColor));
1568 SGVec4f clearColor(l->sky_color());
1569 camera->setClearColor(toOsg(clearColor));
1572 // update fog params if visibility has changed
1573 double visibility_meters = _visibility_m->getDoubleValue();
1574 _sky->set_visibility(visibility_meters);
1576 double altitude_m = _altitude_ft->getDoubleValue() * SG_FEET_TO_METER;
1577 _sky->modify_vis( altitude_m, 0.0 /* time factor, now unused */);
1579 // update the sky dome
1582 // The sun and moon distances are scaled down versions
1583 // of the actual distance to get both the moon and the sun
1584 // within the range of the far clip plane.
1585 // Moon distance: 384,467 kilometers
1586 // Sun distance: 150,000,000 kilometers
1588 double sun_horiz_eff, moon_horiz_eff;
1589 if (_horizon_effect->getBoolValue()) {
1591 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_sun_angle()),
1595 = 0.67 + pow(osg::clampAbove(0.5 + cos(l->get_moon_angle()),
1599 sun_horiz_eff = moon_horiz_eff = 1.0;
1603 sstate.pos = current__view->getViewPosition();
1604 sstate.pos_geod = current__view->getPosition();
1605 sstate.ori = current__view->getViewOrientation();
1606 sstate.spin = l->get_sun_rotation();
1607 sstate.gst = globals->get_time_params()->getGst();
1608 sstate.sun_dist = 50000.0 * sun_horiz_eff;
1609 sstate.moon_dist = 40000.0 * moon_horiz_eff;
1610 sstate.sun_angle = l->get_sun_angle();
1613 scolor.sky_color = SGVec3f(l->sky_color().data());
1614 scolor.adj_sky_color = SGVec3f(l->adj_sky_color().data());
1615 scolor.fog_color = SGVec3f(l->adj_fog_color().data());
1616 scolor.cloud_color = SGVec3f(l->cloud_color().data());
1617 scolor.sun_angle = l->get_sun_angle();
1618 scolor.moon_angle = l->get_moon_angle();
1620 double delta_time_sec = _sim_delta_sec->getDoubleValue();
1621 _sky->reposition( sstate, *globals->get_ephem(), delta_time_sec );
1622 _sky->repaint( scolor, *globals->get_ephem() );
1625 // shadows->setupShadows(
1626 // current__view->getLongitude_deg(),
1627 // current__view->getLatitude_deg(),
1628 // globals->get_time_params()->getGst(),
1629 // globals->get_ephem()->getSunRightAscension(),
1630 // globals->get_ephem()->getSunDeclination(),
1631 // l->get_sun_angle());
1635 // sgEnviro.setLight(l->adj_fog_color());
1636 // sgEnviro.startOfFrame(current__view->get_view_pos(),
1637 // current__view->get_world_up(),
1638 // current__view->getLongitude_deg(),
1639 // current__view->getLatitude_deg(),
1640 // current__view->getAltitudeASL_ft() * SG_FEET_TO_METER,
1644 // sgEnviro.drawLightning();
1646 // double current_view_origin_airspeed_horiz_kt =
1647 // fgGetDouble("/velocities/airspeed-kt", 0.0)
1648 // * cos( fgGetDouble("/orientation/pitch-deg", 0.0)
1649 // * SGD_DEGREES_TO_RADIANS);
1652 // if( is_internal )
1653 // shadows->endOfFrame();
1655 // need to call the update visitor once
1656 mFrameStamp->setCalendarTime(*globals->get_time_params()->getGmt());
1657 mUpdateVisitor->setViewData(current__view->getViewPosition(),
1658 current__view->getViewOrientation());
1659 SGVec3f direction(l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2]);
1660 mUpdateVisitor->setLight(direction, l->scene_ambient(),
1661 l->scene_diffuse(), l->scene_specular(),
1663 l->get_sun_angle()*SGD_RADIANS_TO_DEGREES);
1664 mUpdateVisitor->setVisibility(actual_visibility);
1665 simgear::GroundLightManager::instance()->update(mUpdateVisitor.get());
1666 osg::Node::NodeMask cullMask = ~simgear::LIGHTS_BITS & ~simgear::PICK_BIT;
1667 cullMask |= simgear::GroundLightManager::instance()
1668 ->getLightNodeMask(mUpdateVisitor.get());
1669 if (_panel_hotspots->getBoolValue())
1670 cullMask |= simgear::PICK_BIT;
1671 CameraGroup::getDefault()->setCameraCullMasks(cullMask);
1672 if ( !_classicalRenderer ) {
1673 _fogColor->set( toOsg( l->adj_fog_color() ) );
1674 _fogDensity->set( float( mUpdateVisitor->getFogExp2Density() ) );
1679 FGRenderer::resize( int width, int height )
1681 int curWidth = _xsize->getIntValue(),
1682 curHeight = _ysize->getIntValue();
1683 SG_LOG(SG_VIEW, SG_DEBUG, "FGRenderer::resize: new size " << width << " x " << height);
1684 if ((curHeight != height) || (curWidth != width)) {
1685 // must guard setting these, or PLIB-PUI fails with too many live interfaces
1686 _xsize->setIntValue(width);
1687 _ysize->setIntValue(height);
1692 FGRenderer::pick(std::vector<SGSceneryPick>& pickList,
1693 const osgGA::GUIEventAdapter* ea)
1695 // wipe out the return ...
1697 typedef osgUtil::LineSegmentIntersector::Intersections Intersections;
1698 Intersections intersections;
1700 if (!computeIntersections(CameraGroup::getDefault(), ea, intersections))
1702 for (Intersections::iterator hit = intersections.begin(),
1703 e = intersections.end();
1706 const osg::NodePath& np = hit->nodePath;
1707 osg::NodePath::const_reverse_iterator npi;
1708 for (npi = np.rbegin(); npi != np.rend(); ++npi) {
1709 SGSceneUserData* ud = SGSceneUserData::getSceneUserData(*npi);
1712 for (unsigned i = 0; i < ud->getNumPickCallbacks(); ++i) {
1713 SGPickCallback* pickCallback = ud->getPickCallback(i);
1716 SGSceneryPick sceneryPick;
1717 sceneryPick.info.local = toSG(hit->getLocalIntersectPoint());
1718 sceneryPick.info.wgs84 = toSG(hit->getWorldIntersectPoint());
1719 sceneryPick.callback = pickCallback;
1720 pickList.push_back(sceneryPick);
1724 return !pickList.empty();
1728 FGRenderer::setViewer(osgViewer::Viewer* viewer_)
1734 FGRenderer::setEventHandler(FGEventHandler* eventHandler_)
1736 eventHandler = eventHandler_;
1740 FGRenderer::addCamera(osg::Camera* camera, bool useSceneData)
1742 mRealRoot->addChild(camera);
1746 FGRenderer::removeCamera(osg::Camera* camera)
1748 mRealRoot->removeChild(camera);
1752 FGRenderer::setPlanes( double zNear, double zFar )
1754 _planes->set( osg::Vec3f( - zFar, - zFar * zNear, zFar - zNear ) );
1758 fgDumpSceneGraphToFile(const char* filename)
1760 return osgDB::writeNodeFile(*mRealRoot.get(), filename);
1764 fgDumpTerrainBranchToFile(const char* filename)
1766 return osgDB::writeNodeFile( *globals->get_scenery()->get_terrain_branch(),
1772 fgDumpNodeToFile(osg::Node* node, const char* filename)
1774 return osgDB::writeNodeFile(*node, filename);
1777 namespace flightgear
1779 using namespace osg;
1781 class VisibleSceneInfoVistor : public NodeVisitor, CullStack
1784 VisibleSceneInfoVistor()
1785 : NodeVisitor(CULL_VISITOR, TRAVERSE_ACTIVE_CHILDREN)
1787 setCullingMode(CullSettings::SMALL_FEATURE_CULLING
1788 | CullSettings::VIEW_FRUSTUM_CULLING);
1789 setComputeNearFarMode(CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
1792 VisibleSceneInfoVistor(const VisibleSceneInfoVistor& rhs)
1796 META_NodeVisitor("flightgear","VisibleSceneInfoVistor")
1798 typedef std::map<const std::string,int> InfoMap;
1800 void getNodeInfo(Node* node)
1802 const char* typeName = typeid(*node).name();
1803 classInfo[typeName]++;
1804 const std::string& nodeName = node->getName();
1805 if (!nodeName.empty())
1806 nodeInfo[nodeName]++;
1811 using namespace std;
1812 typedef vector<InfoMap::iterator> FreqVector;
1813 cout << "class info:\n";
1815 for (InfoMap::iterator itr = classInfo.begin(), end = classInfo.end();
1818 classes.push_back(itr);
1819 sort(classes.begin(), classes.end(), freqComp);
1820 for (FreqVector::iterator itr = classes.begin(), end = classes.end();
1823 cout << (*itr)->first << " " << (*itr)->second << "\n";
1825 cout << "\nnode info:\n";
1827 for (InfoMap::iterator itr = nodeInfo.begin(), end = nodeInfo.end();
1830 nodes.push_back(itr);
1832 sort (nodes.begin(), nodes.end(), freqComp);
1833 for (FreqVector::iterator itr = nodes.begin(), end = nodes.end();
1836 cout << (*itr)->first << " " << (*itr)->second << "\n";
1841 void doTraversal(Camera* camera, Node* root, Viewport* viewport)
1843 ref_ptr<RefMatrix> projection
1844 = createOrReuseMatrix(camera->getProjectionMatrix());
1845 ref_ptr<RefMatrix> mv = createOrReuseMatrix(camera->getViewMatrix());
1847 viewport = camera->getViewport();
1849 pushViewport(viewport);
1850 pushProjectionMatrix(projection.get());
1851 pushModelViewMatrix(mv.get(), Transform::ABSOLUTE_RF);
1852 root->accept(*this);
1853 popModelViewMatrix();
1854 popProjectionMatrix();
1860 void apply(Node& node)
1869 void apply(Group& node)
1879 void apply(Transform& node)
1884 ref_ptr<RefMatrix> matrix = createOrReuseMatrix(*getModelViewMatrix());
1885 node.computeLocalToWorldMatrix(*matrix,this);
1886 pushModelViewMatrix(matrix.get(), node.getReferenceFrame());
1889 popModelViewMatrix();
1893 void apply(Camera& camera)
1895 // Save current cull settings
1896 CullSettings saved_cull_settings(*this);
1898 // set cull settings from this Camera
1899 setCullSettings(camera);
1900 // inherit the settings from above
1901 inheritCullSettings(saved_cull_settings, camera.getInheritanceMask());
1903 // set the cull mask.
1904 unsigned int savedTraversalMask = getTraversalMask();
1905 bool mustSetCullMask = (camera.getInheritanceMask()
1906 & osg::CullSettings::CULL_MASK) == 0;
1907 if (mustSetCullMask)
1908 setTraversalMask(camera.getCullMask());
1910 osg::RefMatrix* projection = 0;
1911 osg::RefMatrix* modelview = 0;
1913 if (camera.getReferenceFrame()==osg::Transform::RELATIVE_RF) {
1914 if (camera.getTransformOrder()==osg::Camera::POST_MULTIPLY) {
1915 projection = createOrReuseMatrix(*getProjectionMatrix()
1916 *camera.getProjectionMatrix());
1917 modelview = createOrReuseMatrix(*getModelViewMatrix()
1918 * camera.getViewMatrix());
1920 else { // pre multiply
1921 projection = createOrReuseMatrix(camera.getProjectionMatrix()
1922 * (*getProjectionMatrix()));
1923 modelview = createOrReuseMatrix(camera.getViewMatrix()
1924 * (*getModelViewMatrix()));
1927 // an absolute reference frame
1928 projection = createOrReuseMatrix(camera.getProjectionMatrix());
1929 modelview = createOrReuseMatrix(camera.getViewMatrix());
1931 if (camera.getViewport())
1932 pushViewport(camera.getViewport());
1934 pushProjectionMatrix(projection);
1935 pushModelViewMatrix(modelview, camera.getReferenceFrame());
1939 // restore the previous model view matrix.
1940 popModelViewMatrix();
1942 // restore the previous model view matrix.
1943 popProjectionMatrix();
1945 if (camera.getViewport()) popViewport();
1947 // restore the previous traversal mask settings
1948 if (mustSetCullMask)
1949 setTraversalMask(savedTraversalMask);
1951 // restore the previous cull settings
1952 setCullSettings(saved_cull_settings);
1957 static bool freqComp(const InfoMap::iterator& lhs, const InfoMap::iterator& rhs)
1959 return lhs->second > rhs->second;
1965 bool printVisibleSceneInfo(FGRenderer* renderer)
1967 osgViewer::Viewer* viewer = renderer->getViewer();
1968 VisibleSceneInfoVistor vsv;
1970 if (!viewer->getCamera()->getViewport() && viewer->getNumSlaves() > 0) {
1971 const View::Slave& slave = viewer->getSlave(0);
1972 vp = slave._camera->getViewport();
1974 vsv.doTraversal(viewer->getCamera(), viewer->getSceneData(), vp);
1979 // end of renderer.cxx