Checked in osgParticle, writtten by Marco Jez.

src/osgParticle/ParticleSystemUpdater.cpp

@@ -0,0 +1,37 @@
+#include <osgParticle/ParticleSystemUpdater>
+
+#include <osg/CopyOp>
+#include <osg/Node>
+
+osgParticle::ParticleSystemUpdater::ParticleSystemUpdater()
+: osg::Node(), t0_(-1)
+{
+    setCullingActive(false);
+}
+
+osgParticle::ParticleSystemUpdater::ParticleSystemUpdater(const ParticleSystemUpdater &copy, const osg::CopyOp &copyop)
+: osg::Node(copy, copyop), t0_(copy.t0_)
+{
+    ParticleSystem_Vector::const_iterator i;
+    for (i=copy.psv_.begin(); i!=copy.psv_.end(); ++i) {
+        psv_.push_back(static_cast<ParticleSystem *>(copyop(i->get())));
+    }
+}
+
+void osgParticle::ParticleSystemUpdater::traverse(osg::NodeVisitor &nv)
+{
+    osgUtil::CullVisitor *cv = dynamic_cast<osgUtil::CullVisitor *>(&nv);
+    if (cv) {
+        double t = nv.getFrameStamp()->getReferenceTime();
+        if (t0_ != -1) {
+            ParticleSystem_Vector::iterator i;
+            for (i=psv_.begin(); i!=psv_.end(); ++i) {
+                if (!i->get()->isFrozen() && (i->get()->getLastFrameNumber() >= (nv.getFrameStamp()->getFrameNumber() - 1) || !i->get()->getFreezeOnCull())) {
+                    i->get()->update(t - t0_);
+                }
+            }
+        }
+        t0_ = t;
+    }
+    osg::Node::traverse(nv);
+}