FGFS-4.1/OpenSceneGraph
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Added osg::FrameStamp::set/getSimulationTime().

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Added setting of osg_SimulationTime and osg_DeltaSimulationTime to the uniforms set by SceneView

Added frame(double simulationTime) and advance(double simulationTime) parameters to
osgViewer::SimpleViewer, Vewer and CompositeViewer.

Updated various examples and Nodes to use SimulationTime where appropriate.
This commit is contained in:
Robert Osfield
2007-01-25 12:02:51 +00:00
parent 13dd5acb63
commit 7232a831da
48 changed files with 321 additions and 138 deletions
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126
examples/osgshadow/osgshadow.cpp
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@@ -260,19 +260,14 @@ class SwitchHandler : public osgGA::GUIEventHandler
public:
SwitchHandler():
_childNum(0),
_frameNum(0) {}
_childNum(0) {}
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa, osg::Object* object, osg::NodeVisitor* nv)
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& /*aa*/, osg::Object* object, osg::NodeVisitor* /*nv*/)
{
osg::Switch* sw = dynamic_cast<osg::Switch*>(object);
if (!sw) return false;
if (nv->getFrameStamp())
{
if (nv->getFrameStamp()->getFrameNumber()==_frameNum) return false;
_frameNum = nv->getFrameStamp()->getFrameNumber();
}
if (ea.getHandled()) return false;
switch(ea.getEventType())
{
@@ -280,12 +275,9 @@ public:
{
if (ea.getKey()=='n')
{
++_childNum;
if (_childNum >= sw->getNumChildren()) _childNum = 0;
osg::notify(osg::NOTICE)<<"selecting "<<_childNum<<std::endl;
sw->setSingleChildOn(_childNum);
return true;
}
@@ -301,7 +293,6 @@ protected:
virtual ~SwitchHandler() {}
unsigned int _childNum;
int _frameNum;
};
@@ -320,6 +311,50 @@ osg::Node* createTestModel()
return sw;
}
class ShadowCallback : public osg::NodeCallback
{
public:
ShadowCallback() {}
virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
{
osg::notify(osg::NOTICE)<<"We're in callback"<<std::endl;
osgUtil::CullVisitor* cv = dynamic_cast<osgUtil::CullVisitor*>(nv);
if (!cv)
{
traverse(node,nv);
return;
}
osgUtil::RenderBin* original_bin = cv->getCurrentRenderBin();
osgUtil::RenderBin* new_bin = original_bin->find_or_insert(999,"RenderBin");
cv->setCurrentRenderBin(new_bin);
traverse(node,nv);
osg::notify(osg::NOTICE)<<"new_bin->getStateGraphList().size()= "<<new_bin->getStateGraphList().size()<<std::endl;
osg::notify(osg::NOTICE)<<"new_bin->getRenderBinList().size()= "<<new_bin->getRenderBinList().size()<<std::endl;
osg::notify(osg::NOTICE)<<"new_bin->getRenderLeafList().size()= "<<new_bin->getRenderLeafList().size()<<std::endl;
for(osgUtil::RenderBin::RenderBinList::iterator itr = new_bin->getRenderBinList().begin();
itr != new_bin->getRenderBinList().end();
++itr)
{
osg::notify(osg::NOTICE)<<"bin num = "<<itr->first<<std::endl;
}
cv->setCurrentRenderBin(original_bin);
}
};
int main(int argc, char** argv)
{
// use an ArgumentParser object to manage the program arguments.
@@ -367,6 +402,9 @@ int main(int argc, char** argv)
bool doShadow = true;
while (arguments.read("--noShadow")) doShadow = false;
bool cullCallback = false;
while (arguments.read("-c")) cullCallback = true;
int screenNum = -1;
while (arguments.read("--screen", screenNum)) viewer.setUpViewOnSingleScreen(screenNum);
@@ -501,6 +539,66 @@ int main(int argc, char** argv)
ss->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
}
else if (cullCallback)
{
int shadowVolumeBin = 1000;
group->setCullCallback(new ShadowCallback());
group->addChild(model.get());
{
osg::ref_ptr<osg::Geode> geode = new osg::Geode;
group->addChild(geode.get());
occluder->computeShadowVolumeGeometry(lightpos, *shadowVolume);
shadowVolume->setDrawMode(drawMode);
if (drawMode == osgShadow::ShadowVolumeGeometry::STENCIL_TWO_SIDED)
{
osg::notify(osg::NOTICE)<<"STENCIL_TWO_SIDED seleteced"<<std::endl;
osg::StencilTwoSided* stencil = new osg::StencilTwoSided;
stencil->setFunction(osg::StencilTwoSided::BACK, osg::StencilTwoSided::ALWAYS,0,~0u);
stencil->setOperation(osg::StencilTwoSided::BACK, osg::StencilTwoSided::KEEP, osg::StencilTwoSided::KEEP, osg::StencilTwoSided::DECR_WRAP);
stencil->setFunction(osg::StencilTwoSided::FRONT, osg::StencilTwoSided::ALWAYS,0,~0u);
stencil->setOperation(osg::StencilTwoSided::FRONT, osg::StencilTwoSided::KEEP, osg::StencilTwoSided::KEEP, osg::StencilTwoSided::INCR_WRAP);
osg::ColorMask* colourMask = new osg::ColorMask(false, false, false, false);
osg::StateSet* ss_sv1 = geode->getOrCreateStateSet();
ss_sv1->setRenderBinDetails(shadowVolumeBin, "RenderBin");
ss_sv1->setAttributeAndModes(stencil,osg::StateAttribute::ON);
ss_sv1->setAttribute(colourMask);
ss_sv1->setMode(GL_CULL_FACE,osg::StateAttribute::OFF);
}
else
{
osg::notify(osg::NOTICE)<<"STENCIL_TWO_PASSES seleteced"<<std::endl;
osg::Stencil* stencil = new osg::Stencil;
stencil->setFunction(osg::Stencil::ALWAYS,0,~0u);
stencil->setOperation(osg::Stencil::KEEP, osg::Stencil::KEEP, osg::Stencil::KEEP);
osg::ColorMask* colourMask = new osg::ColorMask(false, false, false, false);
osg::StateSet* ss_sv1 = geode->getOrCreateStateSet();
ss_sv1->setRenderBinDetails(shadowVolumeBin, "RenderBin");
ss_sv1->setAttributeAndModes(stencil,osg::StateAttribute::ON);
ss_sv1->setAttribute(colourMask);
ss_sv1->setMode(GL_CULL_FACE,osg::StateAttribute::ON);
geode->addDrawable(shadowVolume.get());
}
}
}
else
{
osg::Vec4 ambient(0.2,0.2,0.2,1.0);
@@ -651,7 +749,7 @@ int main(int argc, char** argv)
{
if (updateLightPosition)
{
float t = viewer.getFrameStamp()->getReferenceTime();
float t = viewer.getFrameStamp()->getSimulationTime();
if (postionalLight)
{
lightpos.set(bb.center().x()+sinf(t)*bb.radius(), bb.center().y() + cosf(t)*bb.radius(), bb.zMax() + bb.radius() ,1.0f);