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More fixes for scaled particle systems

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This commit is contained in:
scrawl 2015-04-05 14:10:05 +02:00
parent c4738b11b1
commit 74c56556cc
3 changed files with 10 additions and 13 deletions
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4
components/nifosg/nifloader.cpp
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@ -974,7 +974,7 @@ namespace NifOsg
}
else if (affectors->recType == Nif::RC_NiParticleRotation)
{
// unused?
// unused
}
else
std::cerr << "Unhandled particle modifier " << affectors->recName << std::endl;
@ -1064,8 +1064,6 @@ namespace NifOsg
{
osg::ref_ptr<ParticleSystem> partsys (new ParticleSystem);
partsys->setSortMode(osgParticle::ParticleSystem::SORT_BACK_TO_FRONT);
// Scaling the particle node should also scale particles, even when the worldspace flag is enabled
partsys->setParticleScaleReferenceFrame(osgParticle::ParticleSystem::LOCAL_COORDINATES);
const Nif::NiParticleSystemController* partctrl = NULL;
for (Nif::ControllerPtr ctrl = nifNode->controller; !ctrl.empty(); ctrl = ctrl->next)

18
components/nifosg/particle.cpp
View File

@ -50,8 +50,8 @@ void InverseWorldMatrix::operator()(osg::Node *node, osg::NodeVisitor *nv)
osg::MatrixTransform* trans = dynamic_cast<osg::MatrixTransform*>(node);
osg::Matrix mat = osg::computeLocalToWorld( path );
mat = osg::Matrix::inverse(mat);
mat.orthoNormalize(mat); // don't undo the scale
mat = osg::Matrix::inverse(mat);
trans->setMatrix(mat);
}
traverse(node,nv);
@ -239,6 +239,7 @@ void Emitter::setCounter(osgParticle::Counter *counter)
void Emitter::emitParticles(double dt)
{
osg::Matrix worldToPs;
// maybe this could be optimized by halting at the lowest common ancestor of the particle and emitter nodes
osg::MatrixList worldMats = getParticleSystem()->getWorldMatrices();
if (!worldMats.empty())
{
@ -246,14 +247,9 @@ void Emitter::emitParticles(double dt)
worldToPs = osg::Matrix::inverse(psToWorld);
}
worldToPs.orthoNormalize(worldToPs);
const osg::Matrix& ltw = getLocalToWorldMatrix();
const osg::Matrix emitterToPs = ltw * worldToPs;
osg::Matrix emitterToPs = ltw * worldToPs;
int n = mCounter->numParticlesToCreate(dt);
osg::Matrix transform;
if (!mTargets.empty())
{
int randomRecIndex = mTargets[(std::rand() / (static_cast<double>(RAND_MAX)+1.0)) * mTargets.size()];
@ -270,9 +266,13 @@ void Emitter::emitParticles(double dt)
osg::NodePath path = visitor.mFoundPath;
path.erase(path.begin());
transform = osg::computeLocalToWorld(path);
emitterToPs = osg::computeLocalToWorld(path) * emitterToPs;
}
emitterToPs.orthoNormalize(emitterToPs);
int n = mCounter->numParticlesToCreate(dt);
for (int i=0; i<n; ++i)
{
osgParticle::Particle* P = getParticleSystem()->createParticle(0);
@ -282,8 +282,6 @@ void Emitter::emitParticles(double dt)
mShooter->shoot(P);
P->transformPositionVelocity(transform);
P->transformPositionVelocity(emitterToPs);
}
}

1
components/resource/scenemanager.cpp
View File

@ -51,6 +51,7 @@ namespace
void transformInitialParticles(osgParticle::ParticleSystem* partsys, osg::Node* node)
{
osg::Matrix worldMat = node->getWorldMatrices()[0];
worldMat.orthoNormalize(worldMat); // scale is already applied on the particle node
for (int i=0; i<partsys->numParticles(); ++i)
{
partsys->getParticle(i)->transformPositionVelocity(worldMat);