drawViewerObjects< posTrait, colTrait, sizeTrait, geoTrait > Struct Template Reference
Inheritance diagram for drawViewerObjects< posTrait, colTrait, sizeTrait, geoTrait >:
Public Member Functions | |
| virtual void | draw (Particles *part, DrawActionBase *action, UInt32 length) |
| virtual void | drawIndexed (Particles *part, DrawActionBase *action, Int32 *index, UInt32 length) |
Detailed Description
template<class posTrait, class colTrait, class sizeTrait, class geoTrait>
struct drawViewerObjects< posTrait, colTrait, sizeTrait, geoTrait >
Definition at line 2141 of file OSGParticles.cpp.
Member Function Documentation
template<class posTrait, class colTrait, class sizeTrait, class geoTrait>
| virtual void drawViewerObjects< posTrait, colTrait, sizeTrait, geoTrait >::draw | ( | Particles * | part, | |
| DrawActionBase * | action, | |||
| UInt32 | length | |||
| ) | [inline, virtual] |
Implements osg::ParticlesDrawer.
Definition at line 2143 of file OSGParticles.cpp.
References osg::VectorInterface< ValueTypeT, StorageInterfaceT >::cross(), osg::Action::getActNode(), osg::CameraBase::getBeacon(), osg::DrawActionBase::getCamera(), osg::ParticlesBase::getPositions(), osg::ParticlesBase::getSecPositions(), init(), osg::TransformationMatrix< ValueTypeT >::invert(), osg::TransformationMatrix< ValueTypeT >::multLeft(), osg::VectorInterface< ValueTypeT, StorageInterfaceT >::normalize(), and p.
02144 { 02145 // get ModelView matrix to define the direction vectors 02146 Matrix camera,toworld; 02147 action->getCamera()->getBeacon()->getToWorld(camera); 02148 action->getActNode()->getToWorld(toworld); 02149 // normalize them, we don't want to neutralize scales in toworld 02150 toworld[0].normalize(); 02151 toworld[1].normalize(); 02152 toworld[2].normalize(); 02153 toworld.invert(); 02154 camera.multLeft(toworld); 02155 02156 // Viewer position & up 02157 Pnt3f vpos(camera[3]); 02158 02159 // some variables for faster access 02160 GeoPositionsPtr pos = part->getPositions(); 02161 02162 // init traits 02163 typename geoTrait::dataType geoData; 02164 geoTrait::init(part, action, geoData); 02165 02166 typename colTrait::dataType colData; 02167 colTrait::init(part, action, colData); 02168 02169 typename sizeTrait::dataType sizeData; 02170 sizeTrait::init(part, action, sizeData); 02171 02172 typename posTrait::dataType posData, secPosData; 02173 posTrait::init(part, action, posData , part->getPositions()); 02174 posTrait::init(part, action, secPosData, part->getSecPositions()); 02175 02176 for(UInt32 i = 0; i < length; ++i) 02177 { 02178 if(geoTrait::particle (geoData, i)) 02179 continue; 02180 02181 if(colTrait::particle (colData, i)) 02182 continue; 02183 02184 if(sizeTrait::particle(sizeData, i)) 02185 continue; 02186 02187 if(posTrait::particle (posData, i)) 02188 continue; 02189 02190 if(posTrait::particle (secPosData, i)) 02191 continue; 02192 02193 // calc the coordinate system 02194 02195 Pnt3f &p = posTrait::position(posData ); 02196 Pnt3f &sp = posTrait::position(secPosData); 02197 Vec3f n = vpos - p; 02198 02199 Vec3f dz(sp - p); 02200 dz.normalize(); 02201 02202 Vec3f dx(n.cross(dz)); 02203 if(dx.isZero()) 02204 { 02205 dx=Vec3f(1,0,0).cross(dz); 02206 if(dx.isZero()) 02207 { 02208 dx=Vec3f(0,1,0).cross(dz); 02209 if(dx.isZero()) 02210 { 02211 dx=Vec3f(0,0,1).cross(dz); 02212 } 02213 else 02214 { 02215 dx.setValues(0,0,0); 02216 } 02217 } 02218 } 02219 dx.normalize(); 02220 02221 Vec3f dy(dx.cross(dz)); 02222 02223 // now draw the geometry; 02224 geoTrait::draw(geoData, p, sp, dx, dy, dz, 02225 sizeTrait::size(sizeData, i)); 02226 } 02227 02228 geoTrait::exit(part, action, geoData); 02229 }
template<class posTrait, class colTrait, class sizeTrait, class geoTrait>
| virtual void drawViewerObjects< posTrait, colTrait, sizeTrait, geoTrait >::drawIndexed | ( | Particles * | part, | |
| DrawActionBase * | action, | |||
| Int32 * | index, | |||
| UInt32 | length | |||
| ) | [inline, virtual] |
Implements osg::ParticlesDrawer.
Definition at line 2231 of file OSGParticles.cpp.
References osg::VectorInterface< ValueTypeT, StorageInterfaceT >::cross(), osg::Action::getActNode(), osg::CameraBase::getBeacon(), osg::DrawActionBase::getCamera(), osg::ParticlesBase::getPositions(), osg::ParticlesBase::getSecPositions(), init(), osg::TransformationMatrix< ValueTypeT >::invert(), osg::TransformationMatrix< ValueTypeT >::multLeft(), osg::VectorInterface< ValueTypeT, StorageInterfaceT >::normalize(), and p.
02233 { 02234 // get ModelView matrix to define the direction vectors 02235 Matrix camera,toworld; 02236 action->getCamera()->getBeacon()->getToWorld(camera); 02237 action->getActNode()->getToWorld(toworld); 02238 // normalize them, we don't want to neutralize scales in toworld 02239 toworld[0].normalize(); 02240 toworld[1].normalize(); 02241 toworld[2].normalize(); 02242 toworld.invert(); 02243 camera.multLeft(toworld); 02244 02245 // Viewer position & up 02246 Pnt3f vpos(camera[3]); 02247 02248 // some variables for faster access 02249 GeoPositionsPtr pos = part->getPositions(); 02250 02251 // init traits 02252 typename geoTrait::dataType geoData; 02253 geoTrait::init(part, action, geoData); 02254 02255 typename colTrait::dataType colData; 02256 colTrait::init(part, action, colData); 02257 02258 typename sizeTrait::dataType sizeData; 02259 sizeTrait::init(part, action, sizeData); 02260 02261 typename posTrait::dataType posData, secPosData; 02262 posTrait::init(part, action, posData , part->getPositions()); 02263 posTrait::init(part, action, secPosData, part->getSecPositions()); 02264 02265 Int32 i; 02266 02267 for(UInt32 ii = 0; ii < length; ++ii) 02268 { 02269 i = index[ii]; 02270 02271 if(i < 0 || i > Int32(pos->getSize())) 02272 continue; 02273 02274 if(geoTrait::particle (geoData, i)) 02275 continue; 02276 02277 if(colTrait::particle (colData, i)) 02278 continue; 02279 02280 if(sizeTrait::particle(sizeData, i)) 02281 continue; 02282 02283 if(posTrait::particle (posData, i)) 02284 continue; 02285 02286 if(posTrait::particle (secPosData, i)) 02287 continue; 02288 02289 // calc the coordinate system 02290 02291 Pnt3f &p = posTrait ::position(posData ); 02292 Pnt3f &sp = posTrait ::position(secPosData); 02293 Vec3f n = vpos - p; 02294 02295 Vec3f dz(sp - p); 02296 dz.normalize(); 02297 02298 Vec3f dx(n.cross(dz)); 02299 if(dx.isZero()) 02300 { 02301 dx=Vec3f(1,0,0).cross(dz); 02302 if(dx.isZero()) 02303 { 02304 dx=Vec3f(0,1,0).cross(dz); 02305 if(dx.isZero()) 02306 { 02307 dx=Vec3f(0,0,1).cross(dz); 02308 } 02309 else 02310 { 02311 dx.setValues(0,0,0); 02312 } 02313 } 02314 } 02315 dx.normalize(); 02316 02317 Vec3f dy(dx.cross(dz)); 02318 02319 // now draw the geometry; 02320 geoTrait::draw(geoData, p, sp, dx, dy, dz, 02321 sizeTrait::size(sizeData, i)); 02322 } 02323 02324 geoTrait::exit(part, action, geoData); 02325 }
The documentation for this struct was generated from the following file:
