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Particle improvements: Handle LocalSpace flag. Attach particle systems to the base node, since they need to be relative to that when LocalSpace is enabled. Get the bone in emitters/affectors so that resulting particle positions are the same. TODO: Fix Controllers to affect particle systems.

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actorid
scrawl 11 years ago
parent 14c9a4e1d3
commit 6b81fd78f1
3 changed files with 159 additions and 34 deletions
Show Stats Download Patch File Download Diff File

3
components/nif/node.hpp
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@ -137,7 +137,8 @@ struct NiNode : Node
AnimFlag_AutoPlay = 0x0020
};
enum BSParticleFlags {
ParticleFlag_AutoPlay = 0x0020
ParticleFlag_AutoPlay = 0x0020,
ParticleFlag_LocalSpace = 0x0080
};
void read(NIFStream *nif)

61
components/nifogre/ogrenifloader.cpp
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@ -497,7 +497,9 @@ class NIFObjectLoader
}
static void createParticleEmitterAffectors(Ogre::ParticleSystem *partsys, const Nif::NiParticleSystemController *partctrl)
static void createParticleEmitterAffectors(Ogre::ParticleSystem *partsys,
const Nif::NiParticleSystemController *partctrl, Ogre::Bone* bone,
const std::string& skelBaseName)
{
Ogre::ParticleEmitter *emitter = partsys->addEmitter("Nif");
emitter->setParticleVelocity(partctrl->velocity - partctrl->velocityRandom*0.5f,
@ -512,6 +514,8 @@ class NIFObjectLoader
emitter->setParameter("vertical_angle", Ogre::StringConverter::toString(Ogre::Radian(partctrl->verticalAngle).valueDegrees()));
emitter->setParameter("horizontal_direction", Ogre::StringConverter::toString(Ogre::Radian(partctrl->horizontalDir).valueDegrees()));
emitter->setParameter("horizontal_angle", Ogre::StringConverter::toString(Ogre::Radian(partctrl->horizontalAngle).valueDegrees()));
emitter->setParameter("skelbase", skelBaseName);
emitter->setParameter("bone", bone->getName());
Nif::ExtraPtr e = partctrl->extra;
while(!e.empty())
@ -533,6 +537,8 @@ class NIFObjectLoader
affector->setParameter("force_type", (gr->mType==0) ? "wind" : "point");
affector->setParameter("direction", Ogre::StringConverter::toString(gr->mDirection));
affector->setParameter("position", Ogre::StringConverter::toString(gr->mPosition));
affector->setParameter("skelbase", skelBaseName);
affector->setParameter("bone", bone->getName());
}
else if(e->recType == Nif::RC_NiParticleColorModifier)
{
@ -565,7 +571,7 @@ class NIFObjectLoader
}
static void createParticleSystem(const std::string &name, const std::string &group,
Ogre::SceneManager *sceneMgr, ObjectList &objectlist,
Ogre::SceneNode *sceneNode, ObjectList &objectlist,
const Nif::Node *partnode, int flags, int partflags)
{
const Nif::NiAutoNormalParticlesData *particledata = NULL;
@ -579,7 +585,7 @@ class NIFObjectLoader
fullname += "@type="+partnode->name;
Misc::StringUtils::toLower(fullname);
Ogre::ParticleSystem *partsys = sceneMgr->createParticleSystem();
Ogre::ParticleSystem *partsys = sceneNode->getCreator()->createParticleSystem();
const Nif::NiTexturingProperty *texprop = NULL;
const Nif::NiMaterialProperty *matprop = NULL;
@ -600,9 +606,9 @@ class NIFObjectLoader
particledata->particleRadius*2.0f);
partsys->setCullIndividually(false);
partsys->setParticleQuota(particledata->numParticles);
// TODO: There is probably a field or flag to specify this, as some
// particle effects have it and some don't.
partsys->setKeepParticlesInLocalSpace(false);
partsys->setKeepParticlesInLocalSpace(partflags & (Nif::NiNode::ParticleFlag_LocalSpace));
sceneNode->attachObject(partsys);
Nif::ControllerPtr ctrl = partnode->controller;
while(!ctrl.empty())
@ -611,12 +617,11 @@ class NIFObjectLoader
{
const Nif::NiParticleSystemController *partctrl = static_cast<const Nif::NiParticleSystemController*>(ctrl.getPtr());
createParticleEmitterAffectors(partsys, partctrl);
if(!partctrl->emitter.empty() && !partsys->isAttached())
if(!partctrl->emitter.empty())
{
int trgtid = NIFSkeletonLoader::lookupOgreBoneHandle(name, partctrl->emitter->recIndex);
Ogre::Bone *trgtbone = objectlist.mSkelBase->getSkeleton()->getBone(trgtid);
objectlist.mSkelBase->attachObjectToBone(trgtbone->getName(), partsys);
createParticleEmitterAffectors(partsys, partctrl, trgtbone, objectlist.mSkelBase->getName());
}
Ogre::ControllerValueRealPtr srcval((partflags&Nif::NiNode::ParticleFlag_AutoPlay) ?
@ -634,13 +639,6 @@ class NIFObjectLoader
ctrl = ctrl->next;
}
if(!partsys->isAttached())
{
int trgtid = NIFSkeletonLoader::lookupOgreBoneHandle(name, partnode->recIndex);
Ogre::Bone *trgtbone = objectlist.mSkelBase->getSkeleton()->getBone(trgtid);
objectlist.mSkelBase->attachObjectToBone(trgtbone->getName(), partsys);
}
partsys->setVisible(!(flags&Nif::NiNode::Flag_Hidden));
objectlist.mParticles.push_back(partsys);
}
@ -729,7 +727,7 @@ class NIFObjectLoader
static void createObjects(const std::string &name, const std::string &group,
Ogre::SceneManager *sceneMgr, const Nif::Node *node,
Ogre::SceneNode *sceneNode, const Nif::Node *node,
ObjectList &objectlist, int flags, int animflags, int partflags)
{
// Do not create objects for the collision shape (includes all children)
@ -784,13 +782,13 @@ class NIFObjectLoader
if(node->recType == Nif::RC_NiTriShape && !(flags&0x80000000))
{
createEntity(name, group, sceneMgr, objectlist, node, flags, animflags);
createEntity(name, group, sceneNode->getCreator(), objectlist, node, flags, animflags);
}
if((node->recType == Nif::RC_NiAutoNormalParticles ||
node->recType == Nif::RC_NiRotatingParticles) && !(flags&0x40000000))
{
createParticleSystem(name, group, sceneMgr, objectlist, node, flags, partflags);
createParticleSystem(name, group, sceneNode, objectlist, node, flags, partflags);
}
const Nif::NiNode *ninode = dynamic_cast<const Nif::NiNode*>(node);
@ -800,7 +798,7 @@ class NIFObjectLoader
for(size_t i = 0;i < children.length();i++)
{
if(!children[i].empty())
createObjects(name, group, sceneMgr, children[i].getPtr(), objectlist, flags, animflags, partflags);
createObjects(name, group, sceneNode, children[i].getPtr(), objectlist, flags, animflags, partflags);
}
}
}
@ -821,7 +819,7 @@ class NIFObjectLoader
}
public:
static void load(Ogre::SceneManager *sceneMgr, ObjectList &objectlist, const std::string &name, const std::string &group, int flags=0)
static void load(Ogre::SceneNode *sceneNode, ObjectList &objectlist, const std::string &name, const std::string &group, int flags=0)
{
Nif::NIFFile::ptr nif = Nif::NIFFile::create(name);
if(nif->numRoots() < 1)
@ -845,9 +843,9 @@ public:
!NIFSkeletonLoader::createSkeleton(name, group, node).isNull())
{
// Create a base skeleton entity if this NIF needs one
createSkelBase(name, group, sceneMgr, node, objectlist);
createSkelBase(name, group, sceneNode->getCreator(), node, objectlist);
}
createObjects(name, group, sceneMgr, node, objectlist, flags, 0, 0);
createObjects(name, group, sceneNode, node, objectlist, flags, 0, 0);
}
static void loadKf(Ogre::Skeleton *skel, const std::string &name,
@ -915,7 +913,7 @@ ObjectList Loader::createObjects(Ogre::SceneNode *parentNode, std::string name,
ObjectList objectlist;
Misc::StringUtils::toLower(name);
NIFObjectLoader::load(parentNode->getCreator(), objectlist, name, group);
NIFObjectLoader::load(parentNode, objectlist, name, group);
for(size_t i = 0;i < objectlist.mEntities.size();i++)
{
@ -934,7 +932,7 @@ ObjectList Loader::createObjects(Ogre::Entity *parent, const std::string &bonena
ObjectList objectlist;
Misc::StringUtils::toLower(name);
NIFObjectLoader::load(parentNode->getCreator(), objectlist, name, group);
NIFObjectLoader::load(parentNode, objectlist, name, group);
bool isskinned = false;
for(size_t i = 0;i < objectlist.mEntities.size();i++)
@ -984,6 +982,17 @@ ObjectList Loader::createObjects(Ogre::Entity *parent, const std::string &bonena
}
}
for(size_t i = 0;i < objectlist.mParticles.size();i++)
{
Ogre::ParticleSystem *partsys = objectlist.mParticles[i];
if(partsys->isAttached())
partsys->detachFromParent();
Ogre::TagPoint *tag = objectlist.mSkelBase->attachObjectToBone(
objectlist.mSkelBase->getSkeleton()->getRootBone()->getName(), partsys);
tag->setScale(scale);
}
return objectlist;
}
@ -993,7 +1002,7 @@ ObjectList Loader::createObjectBase(Ogre::SceneNode *parentNode, std::string nam
ObjectList objectlist;
Misc::StringUtils::toLower(name);
NIFObjectLoader::load(parentNode->getCreator(), objectlist, name, group, 0xC0000000);
NIFObjectLoader::load(parentNode, objectlist, name, group, 0xC0000000);
if(objectlist.mSkelBase)
parentNode->attachObject(objectlist.mSkelBase);

129
components/nifogre/particles.cpp
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@ -5,11 +5,55 @@
#include <OgreParticleEmitter.h>
#include <OgreParticleAffector.h>
#include <OgreParticle.h>
#include <OgreBone.h>
#include <OgreTagPoint.h>
#include <OgreEntity.h>
#include <OgreSkeletonInstance.h>
#include <OgreSceneNode.h>
#include <OgreSceneManager.h>
/* FIXME: "Nif" isn't really an appropriate emitter name. */
class NifEmitter : public Ogre::ParticleEmitter
{
public:
std::string mSkelBaseName;
Ogre::Bone* mBone;
Ogre::ParticleSystem* getPartSys() { return mParent; }
class CmdSkelBase : public Ogre::ParamCommand
{
public:
Ogre::String doGet(const void *target) const
{
assert(false && "Unimplemented");
}
void doSet(void *target, const Ogre::String &val)
{
NifEmitter* emitter = static_cast<NifEmitter*>(target);
emitter->mSkelBaseName = val;
}
};
class CmdBone : public Ogre::ParamCommand
{
public:
Ogre::String doGet(const void *target) const
{
assert(false && "Unimplemented");
}
void doSet(void *target, const Ogre::String &val)
{
NifEmitter* emitter = static_cast<NifEmitter*>(target);
assert(!emitter->mSkelBaseName.empty() && "Base entity needs to be set first");
Ogre::ParticleSystem* partsys = emitter->getPartSys();
Ogre::Entity* ent = partsys->getParentSceneNode()->getCreator()->getEntity(emitter->mSkelBaseName);
Ogre::Bone* bone = ent->getSkeleton()->getBone(val);
assert(bone);
emitter->mBone = bone;
}
};
/** Command object for the emitter width (see Ogre::ParamCommand).*/
class CmdWidth : public Ogre::ParamCommand
{
@ -119,6 +163,7 @@ public:
NifEmitter(Ogre::ParticleSystem *psys)
: Ogre::ParticleEmitter(psys)
, mBone(NULL)
{
initDefaults("Nif");
}
@ -133,6 +178,7 @@ public:
/** See Ogre::ParticleEmitter. */
void _initParticle(Ogre::Particle *particle)
{
assert (mBone && "No node set");
Ogre::Vector3 xOff, yOff, zOff;
// Call superclass
@ -141,8 +187,8 @@ public:
xOff = Ogre::Math::SymmetricRandom() * mXRange;
yOff = Ogre::Math::SymmetricRandom() * mYRange;
zOff = Ogre::Math::SymmetricRandom() * mZRange;
particle->position = mPosition + xOff + yOff + zOff;
particle->position = mBone->_getDerivedPosition() + xOff + yOff + zOff;
// Generate complex data by reference
genEmissionColour(particle->colour);
@ -150,7 +196,7 @@ public:
// NOTE: We do not use mDirection/mAngle for the initial direction.
Ogre::Radian hdir = mHorizontalDir + mHorizontalAngle*Ogre::Math::SymmetricRandom();
Ogre::Radian vdir = mVerticalDir + mVerticalAngle*Ogre::Math::SymmetricRandom();
particle->direction = (Ogre::Quaternion(hdir, Ogre::Vector3::UNIT_Z) *
particle->direction = (mBone->_getDerivedOrientation() * Ogre::Quaternion(hdir, Ogre::Vector3::UNIT_Z) *
Ogre::Quaternion(vdir, Ogre::Vector3::UNIT_X)) *
Ogre::Vector3::UNIT_Z;
@ -313,6 +359,16 @@ protected:
Ogre::PT_REAL),
&msHorizontalAngleCmd);
dict->addParameter(Ogre::ParameterDef("bone",
"The bone where the particles should be spawned",
Ogre::PT_STRING),
&msBoneCmd);
dict->addParameter(Ogre::ParameterDef("skelbase",
"The name of the entity containing the bone (see 'bone' parameter)",
Ogre::PT_STRING),
&msSkelBaseCmd);
return true;
}
return false;
@ -326,6 +382,8 @@ protected:
static CmdVerticalAngle msVerticalAngleCmd;
static CmdHorizontalDir msHorizontalDirCmd;
static CmdHorizontalAngle msHorizontalAngleCmd;
static CmdBone msBoneCmd;
static CmdSkelBase msSkelBaseCmd;
};
NifEmitter::CmdWidth NifEmitter::msWidthCmd;
NifEmitter::CmdHeight NifEmitter::msHeightCmd;
@ -334,12 +392,14 @@ NifEmitter::CmdVerticalDir NifEmitter::msVerticalDirCmd;
NifEmitter::CmdVerticalAngle NifEmitter::msVerticalAngleCmd;
NifEmitter::CmdHorizontalDir NifEmitter::msHorizontalDirCmd;
NifEmitter::CmdHorizontalAngle NifEmitter::msHorizontalAngleCmd;
NifEmitter::CmdBone NifEmitter::msBoneCmd;
NifEmitter::CmdSkelBase NifEmitter::msSkelBaseCmd;
Ogre::ParticleEmitter* NifEmitterFactory::createEmitter(Ogre::ParticleSystem *psys)
{
Ogre::ParticleEmitter *emit = OGRE_NEW NifEmitter(psys);
mEmitters.push_back(emit);
return emit;
Ogre::ParticleEmitter *emitter = OGRE_NEW NifEmitter(psys);
mEmitters.push_back(emitter);
return emitter;
}
@ -492,6 +552,45 @@ class GravityAffector : public Ogre::ParticleAffector
};
public:
std::string mSkelBaseName;
Ogre::Bone* mBone;
Ogre::ParticleSystem* getPartSys() { return mParent; }
class CmdSkelBase : public Ogre::ParamCommand
{
public:
Ogre::String doGet(const void *target) const
{
assert(false && "Unimplemented");
}
void doSet(void *target, const Ogre::String &val)
{
GravityAffector* affector = static_cast<GravityAffector*>(target);
affector->mSkelBaseName = val;
}
};
class CmdBone : public Ogre::ParamCommand
{
public:
Ogre::String doGet(const void *target) const
{
assert(false && "Unimplemented");
}
void doSet(void *target, const Ogre::String &val)
{
GravityAffector* affector = static_cast<GravityAffector*>(target);
assert(!affector->mSkelBaseName.empty() && "Base entity needs to be set first");
Ogre::ParticleSystem* partsys = affector->getPartSys();
Ogre::Entity* ent = partsys->getParentSceneNode()->getCreator()->getEntity(affector->mSkelBaseName);
Ogre::Bone* bone = ent->getSkeleton()->getBone(val);
assert(bone);
affector->mBone = bone;
}
};
/** Command object for force (see Ogre::ParamCommand).*/
class CmdForce : public Ogre::ParamCommand
{
@ -585,6 +684,7 @@ public:
, mForceType(Type_Wind)
, mPosition(0.0f)
, mDirection(0.0f)
, mBone(NULL)
{
mType = "Gravity";
@ -606,6 +706,16 @@ public:
dict->addParameter(Ogre::ParameterDef(force_type_title, force_type_descr, Ogre::PT_STRING), &msForceTypeCmd);
dict->addParameter(Ogre::ParameterDef(direction_title, direction_descr, Ogre::PT_VECTOR3), &msDirectionCmd);
dict->addParameter(Ogre::ParameterDef(position_title, position_descr, Ogre::PT_VECTOR3), &msPositionCmd);
dict->addParameter(Ogre::ParameterDef("bone",
"The bone where the particles should be spawned",
Ogre::PT_STRING),
&msBoneCmd);
dict->addParameter(Ogre::ParameterDef("skelbase",
"The name of the entity containing the bone (see 'bone' parameter)",
Ogre::PT_STRING),
&msSkelBaseCmd);
}
}
@ -647,6 +757,8 @@ public:
static CmdForceType msForceTypeCmd;
static CmdDirection msDirectionCmd;
static CmdPosition msPositionCmd;
static CmdBone msBoneCmd;
static CmdSkelBase msSkelBaseCmd;
protected:
void applyWindForce(Ogre::ParticleSystem *psys, Ogre::Real timeElapsed)
@ -667,7 +779,8 @@ protected:
while (!pi.end())
{
Ogre::Particle *p = pi.getNext();
const Ogre::Vector3 vec = (p->position - mPosition).normalisedCopy() * force;
const Ogre::Vector3 vec = (
(mBone->_getDerivedOrientation() * mPosition + mBone->_getDerivedPosition()) - p->position).normalisedCopy() * force;
p->direction += vec;
}
}
@ -684,6 +797,8 @@ GravityAffector::CmdForce GravityAffector::msForceCmd;
GravityAffector::CmdForceType GravityAffector::msForceTypeCmd;
GravityAffector::CmdDirection GravityAffector::msDirectionCmd;
GravityAffector::CmdPosition GravityAffector::msPositionCmd;
GravityAffector::CmdBone GravityAffector::msBoneCmd;
GravityAffector::CmdSkelBase GravityAffector::msSkelBaseCmd;
Ogre::ParticleAffector *GravityAffectorFactory::createAffector(Ogre::ParticleSystem *psys)
{

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