drawViewerQuads< posTrait, colTrait, texTrait, sizeTrait > Struct Template Reference
Inheritance diagram for drawViewerQuads< posTrait, colTrait, texTrait, sizeTrait >:
Public Member Functions | |
| virtual void | drawIndexed (Particles *part, DrawActionBase *action, Int32 *index, UInt32 length) |
| virtual void | draw (Particles *part, DrawActionBase *action, UInt32 length) |
Detailed Description
template<class posTrait, class colTrait, class texTrait, class sizeTrait>
struct drawViewerQuads< posTrait, colTrait, texTrait, sizeTrait >
Definition at line 1387 of file OSGParticles.cpp.
Member Function Documentation
template<class posTrait, class colTrait, class texTrait, class sizeTrait>
| virtual void drawViewerQuads< posTrait, colTrait, texTrait, sizeTrait >::drawIndexed | ( | Particles * | part, | |
| DrawActionBase * | action, | |||
| Int32 * | index, | |||
| UInt32 | length | |||
| ) | [inline, virtual] |
Implements osg::ParticlesDrawer.
Definition at line 1389 of file OSGParticles.cpp.
References osg::VectorInterface< ValueTypeT, StorageInterfaceT >::cross(), osg::Action::getActNode(), osg::DrawActionBase::getCameraToWorld(), osg::ParticlesBase::getPositions(), init(), osg::TransformationMatrix< ValueTypeT >::invert(), osg::TransformationMatrix< ValueTypeT >::multLeft(), osg::VectorInterface< ValueTypeT, StorageInterfaceT >::normalize(), p, and osg::RenderAction::top_matrix().
01391 { 01392 // get ModelView matrix to define the direction vectors 01393 Matrix camera,toworld; 01394 01395 camera = action->getCameraToWorld(); 01396 01397 RenderAction *ra = dynamic_cast<RenderAction *>(action); 01398 01399 if(ra != NULL) 01400 { 01401 toworld = ra->top_matrix(); 01402 } 01403 else 01404 { 01405 action->getActNode()->getToWorld(toworld); 01406 } 01407 01408 // normalize them, we don't want to neutralize scales in toworld 01409 toworld[0].normalize(); 01410 toworld[1].normalize(); 01411 toworld[2].normalize(); 01412 toworld.invert(); 01413 camera.multLeft(toworld); 01414 01415 // Viewer position & up 01416 Pnt3f vpos(camera[3]); 01417 Vec3f vup (camera[1]); 01418 vup.normalize(); 01419 Vec3f vdir,vnorm; 01420 01421 // direction vector 01422 Vec4f d; 01423 01424 // some variables for faster access 01425 GeoPositionsPtr pos = part->getPositions(); 01426 01427 // init traits 01428 typename colTrait::dataType colData; 01429 colTrait::init(part, action, colData); 01430 01431 typename texTrait::dataType texData; 01432 texTrait::init(part, action, texData); 01433 01434 typename sizeTrait::dataType sizeData; 01435 sizeTrait::init(part, action, sizeData); 01436 01437 typename posTrait::dataType posData; 01438 posTrait::init(part, action, posData, part->getPositions()); 01439 01440 glBegin(GL_QUADS); 01441 01442 Int32 i; 01443 01444 for(UInt32 ii = 0; ii < length; ++ii) 01445 { 01446 i = index[ii]; 01447 01448 if(i < 0 || i > Int32(pos->getSize())) 01449 continue; 01450 01451 if(colTrait::particle (colData, i)) 01452 continue; 01453 01454 if(texTrait::particle (texData, i)) 01455 continue; 01456 01457 if(sizeTrait::particle(sizeData, i)) 01458 continue; 01459 01460 if(posTrait::particle(posData, i)) 01461 continue; 01462 01463 Real32 s = sizeTrait::size(sizeData, i)[0] / 2.f; 01464 01465 if(s == 0) 01466 continue; 01467 01468 // calc viewer-relative coord system 01469 01470 Pnt3f p = pos->getValue(i); 01471 vdir = vpos - p; 01472 vdir.normalize(); 01473 vnorm = vup.cross(vdir); 01474 01475 d.setValues( -vnorm[0] - vup[0], 01476 -vnorm[1] - vup[1], 01477 -vnorm[2] - vup[2], 01478 1 ); 01479 colTrait::vertex(colData, i, 0); 01480 texTrait::vertex(texData, 0, 0, 0); 01481 posTrait::vertex(posData, 0, d, s); 01482 01483 d.setValues( vnorm[0] - vup[0], 01484 vnorm[1] - vup[1], 01485 vnorm[2] - vup[2], 01486 1 ); 01487 colTrait::vertex(colData, i, 1); 01488 texTrait::vertex(texData, 1, 1, 0); 01489 posTrait::vertex(posData, 1, d, s); 01490 01491 d.setValues( vnorm[0] + vup[0], 01492 vnorm[1] + vup[1], 01493 vnorm[2] + vup[2], 01494 1 ); 01495 colTrait::vertex(colData, i, 2); 01496 texTrait::vertex(texData, 2, 1, 1); 01497 posTrait::vertex(posData, 2, d, s); 01498 01499 d.setValues( -vnorm[0] + vup[0], 01500 -vnorm[1] + vup[1], 01501 -vnorm[2] + vup[2], 01502 1 ); 01503 colTrait::vertex(colData, i, 3); 01504 texTrait::vertex(texData, 3, 0, 1); 01505 posTrait::vertex(posData, 3, d, s); 01506 } 01507 01508 glEnd(); 01509 }
template<class posTrait, class colTrait, class texTrait, class sizeTrait>
| virtual void drawViewerQuads< posTrait, colTrait, texTrait, sizeTrait >::draw | ( | Particles * | part, | |
| DrawActionBase * | action, | |||
| UInt32 | length | |||
| ) | [inline, virtual] |
Implements osg::ParticlesDrawer.
Definition at line 1511 of file OSGParticles.cpp.
References osg::VectorInterface< ValueTypeT, StorageInterfaceT >::cross(), osg::Action::getActNode(), osg::DrawActionBase::getCameraToWorld(), osg::ParticlesBase::getPositions(), init(), osg::TransformationMatrix< ValueTypeT >::invert(), osg::TransformationMatrix< ValueTypeT >::multLeft(), osg::VectorInterface< ValueTypeT, StorageInterfaceT >::normalize(), p, and osg::RenderAction::top_matrix().
01512 { 01513 // get ModelView matrix to define the direction vectors 01514 Matrix camera,toworld; 01515 01516 camera = action->getCameraToWorld(); 01517 01518 RenderAction *ra = dynamic_cast<RenderAction *>(action); 01519 01520 if(ra != NULL) 01521 { 01522 toworld = ra->top_matrix(); 01523 } 01524 else 01525 { 01526 action->getActNode()->getToWorld(toworld); 01527 } 01528 01529 01530 // normalize them, we don't want to neutralize scales in toworld 01531 toworld[0].normalize(); 01532 toworld[1].normalize(); 01533 toworld[2].normalize(); 01534 toworld.invert(); 01535 camera.multLeft(toworld); 01536 01537 // Viewer position & up 01538 Pnt3f vpos(camera[3]); 01539 Vec3f vup (camera[1]); 01540 vup.normalize(); 01541 Vec3f vdir,vnorm; 01542 01543 // direction vector 01544 Vec4f d; 01545 01546 // some variables for faster access 01547 GeoPositionsPtr pos = part->getPositions(); 01548 01549 // init traits 01550 typename colTrait::dataType colData; 01551 colTrait::init(part, action, colData); 01552 01553 typename texTrait::dataType texData; 01554 texTrait::init(part, action, texData); 01555 01556 typename sizeTrait::dataType sizeData; 01557 sizeTrait::init(part, action, sizeData); 01558 01559 typename posTrait::dataType posData; 01560 posTrait::init(part, action, posData, part->getPositions()); 01561 01562 glBegin(GL_QUADS); 01563 01564 for(UInt32 i = 0; i < length; ++i) 01565 { 01566 if(colTrait::particle (colData, i)) 01567 continue; 01568 01569 if(texTrait::particle (texData, i)) 01570 continue; 01571 01572 if(sizeTrait::particle(sizeData, i)) 01573 continue; 01574 01575 if(posTrait::particle(posData, i)) 01576 continue; 01577 01578 Real32 s = sizeTrait::size(sizeData, i)[0] / 2.f; 01579 01580 if(s == 0) 01581 continue; 01582 01583 // calc viewer-relative coord system 01584 01585 Pnt3f p = pos->getValue(i); 01586 vdir = vpos - p; 01587 vdir.normalize(); 01588 vnorm = vup.cross(vdir); 01589 01590 d.setValues( -vnorm[0] - vup[0], 01591 -vnorm[1] - vup[1], 01592 -vnorm[2] - vup[2], 01593 1 ); 01594 colTrait::vertex(colData, i, 0); 01595 texTrait::vertex(texData, 0, 0, 0); 01596 posTrait::vertex(posData, 0, d, s); 01597 01598 d.setValues( vnorm[0] - vup[0], 01599 vnorm[1] - vup[1], 01600 vnorm[2] - vup[2], 01601 1 ); 01602 colTrait::vertex(colData, i, 1); 01603 texTrait::vertex(texData, 1, 1, 0); 01604 posTrait::vertex(posData, 1, d, s); 01605 01606 d.setValues( vnorm[0] + vup[0], 01607 vnorm[1] + vup[1], 01608 vnorm[2] + vup[2], 01609 1 ); 01610 colTrait::vertex(colData, i, 2); 01611 texTrait::vertex(texData, 2, 1, 1); 01612 posTrait::vertex(posData, 2, d, s); 01613 01614 d.setValues( -vnorm[0] + vup[0], 01615 -vnorm[1] + vup[1], 01616 -vnorm[2] + vup[2], 01617 1 ); 01618 colTrait::vertex(colData, i, 3); 01619 texTrait::vertex(texData, 3, 0, 1); 01620 posTrait::vertex(posData, 3, d, s); 01621 } 01622 01623 glEnd(); 01624 }
The documentation for this struct was generated from the following file:
