FGFS-4.1/OpenSceneGraph
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Added light source.

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This commit is contained in:
Robert Osfield
2007-01-27 14:27:29 +00:00
parent 137d9c1a6a
commit f2c782dda4
1 changed files with 38 additions and 86 deletions
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124
examples/osgshadow/osgshadow.cpp
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@@ -317,7 +317,9 @@ class ShadowCallback : public osg::NodeCallback
{
public:
osg::Vec4 _lightpos;
osg::ref_ptr<osg::Light> _ambientLight;
osg::ref_ptr<osg::Light> _diffuseLight;
osg::ref_ptr<osg::StateSet> _ss1;
osg::ref_ptr<osg::StateSet> _mainShadowStateSet;
osg::ref_ptr<osg::StateSet> _shadowVolumeStateSet;
@@ -325,15 +327,11 @@ public:
ShadowCallback(osgShadow::ShadowVolumeGeometry::DrawMode drawMode)
{
osg::Vec4 ambient(0.2,0.2,0.2,1.0);
osg::Vec4 diffuse(0.8,0.8,0.8,1.0);
osg::Vec4 zero_colour(0.0,0.0,0.0,1.0);
_lightpos.set(0.0,1.0,0.0,0.0);
// first group, render the depth buffer + ambient light contribution
{
_ss1 = new osg::StateSet;
#if 0
osg::LightModel* lm1 = new osg::LightModel;
lm1->setAmbientIntensity(ambient);
_ss1->setAttribute(lm1);
@@ -343,6 +341,8 @@ public:
light1->setDiffuse(zero_colour);
light1->setPosition(_lightpos);
_ss1->setAttributeAndModes(light1, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
#endif
_ss1->setMode(GL_LIGHTING, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
}
@@ -408,14 +408,11 @@ public:
_shadowedSceneStateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::ON);
// _shadowedSceneStateSet->setMode(GL_LIGHTING, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
#if 0
osg::LightModel* lm1 = new osg::LightModel;
lm1->setAmbientIntensity(zero_colour);
_shadowedSceneStateSet->setAttribute(lm1);
osg::LightSource* lightsource = new osg::LightSource;
// lightsource->setLight(light.get());
osg::Light* light = new osg::Light;
light->setAmbient(zero_colour);
light->setDiffuse(diffuse);
@@ -423,6 +420,7 @@ public:
_shadowedSceneStateSet->setMode(GL_LIGHT0, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
_shadowedSceneStateSet->setAttribute(light);
#endif
// set up the stencil ops so that only operator on this mirrors stencil value.
osg::Stencil* stencil = new osg::Stencil;
@@ -457,7 +455,7 @@ public:
osg::ref_ptr<osgUtil::RenderBin> original_bin = cv->getCurrentRenderBin();
osg::ref_ptr<osgUtil::RenderBin> new_bin = original_bin->find_or_insert(999,"RenderBin");
osg::ref_ptr<osgUtil::RenderBin> new_bin = original_bin->find_or_insert(0,"RenderBin");
cv->setCurrentRenderBin(new_bin.get());
@@ -465,24 +463,6 @@ public:
cv->setCurrentRenderBin(original_bin.get());
#if 0
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;
osg::notify(osg::NOTICE)<<" new_bin->getStateGraphList().size()= "<<itr->second->getStateGraphList().size()<<std::endl;
osg::notify(osg::NOTICE)<<" new_bin->getRenderBinList().size()= "<<itr->second->getRenderBinList().size()<<std::endl;
osg::notify(osg::NOTICE)<<" new_bin->getRenderLeafList().size()= "<<itr->second->getRenderLeafList().size()<<std::endl;
}
#endif
osgUtil::RenderBin::RenderBinList::iterator itr = new_bin->getRenderBinList().find(1000);
osg::ref_ptr<osgUtil::RenderBin> shadowVolumeBin;
if (itr != new_bin->getRenderBinList().end())
@@ -496,65 +476,33 @@ public:
}
}
#if 0
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;
}
osg::notify(osg::NOTICE)<<"after new_bin->getStateGraphList().size()= "<<new_bin->getStateGraphList().size()<<std::endl;
osg::notify(osg::NOTICE)<<"after new_bin->getRenderBinList().size()= "<<new_bin->getRenderBinList().size()<<std::endl;
osg::notify(osg::NOTICE)<<"after new_bin->getRenderLeafList().size()= "<<new_bin->getRenderLeafList().size()<<std::endl;
#endif
original_bin->setStateSet(_ss1.get());
osgUtil::RenderStage* orig_rs = cv->getRenderStage();
osgUtil::RenderStage* new_rs = new osgUtil::RenderStage;
orig_rs->addPostRenderStage(new_rs);
new_rs->setViewport(orig_rs->getViewport());
new_rs->setClearColor(orig_rs->getClearColor());
new_rs->setClearMask(GL_STENCIL_BUFFER_BIT);
new_rs->setDrawBuffer(orig_rs->getDrawBuffer());
new_rs->setReadBuffer(orig_rs->getReadBuffer());
new_rs->setColorMask(orig_rs->getColorMask());
new_rs->setPositionalStateContainer(orig_rs->getPositionalStateContainer());
if (shadowVolumeBin.valid())
{
// new_rs->setStateSet(_mainShadowStateSet.get());
new_rs->getRenderBinList()[0] = shadowVolumeBin;
shadowVolumeBin->setStateSet(_shadowVolumeStateSet.get());
osg::ref_ptr<osgUtil::RenderBin> nested_bin = new_rs->find_or_insert(1,"RenderBin");
nested_bin->getRenderBinList()[0] = new_bin;
nested_bin->setStateSet(_shadowedSceneStateSet.get());
}
{
original_bin->setStateSet(_ss1.get());
#if 0
osg::notify(osg::NOTICE)<<"After setup"<<std::endl;
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;
osg::notify(osg::NOTICE)<<" new_bin->getStateGraphList().size()= "<<itr->second->getStateGraphList().size()<<std::endl;
osg::notify(osg::NOTICE)<<" new_bin->getRenderBinList().size()= "<<itr->second->getRenderBinList().size()<<std::endl;
osg::notify(osg::NOTICE)<<" new_bin->getRenderLeafList().size()= "<<itr->second->getRenderLeafList().size()<<std::endl;
}
osg::notify(osg::NOTICE)<<std::endl;
#endif
osgUtil::RenderStage* orig_rs = cv->getRenderStage();
osgUtil::RenderStage* new_rs = new osgUtil::RenderStage;
orig_rs->addPostRenderStage(new_rs);
new_rs->setViewport(orig_rs->getViewport());
new_rs->setClearColor(orig_rs->getClearColor());
new_rs->setClearMask(GL_STENCIL_BUFFER_BIT);
new_rs->setDrawBuffer(orig_rs->getDrawBuffer());
new_rs->setReadBuffer(orig_rs->getReadBuffer());
new_rs->setColorMask(orig_rs->getColorMask());
new_rs->setPositionalStateContainer(orig_rs->getPositionalStateContainer());
if (shadowVolumeBin.valid())
{
// new_rs->setStateSet(_mainShadowStateSet.get());
new_rs->getRenderBinList()[0] = shadowVolumeBin;
shadowVolumeBin->setStateSet(_shadowVolumeStateSet.get());
osg::ref_ptr<osgUtil::RenderBin> nested_bin = new_rs->find_or_insert(1,"RenderBin");
nested_bin->getRenderBinList()[0] = new_bin;
nested_bin->setStateSet(_shadowedSceneStateSet.get());
}
}
}
};
@@ -730,6 +678,7 @@ int main(int argc, char** argv)
osg::ref_ptr<osg::Light> light = new osg::Light;
light->setPosition(lightpos);
if (!doShadow)
{
@@ -753,6 +702,10 @@ int main(int argc, char** argv)
group->addChild(model.get());
osg::ref_ptr<osg::LightSource> ls = new osg::LightSource;
ls->setLight(light.get());
group->addChild(ls.get());
{
osg::ref_ptr<osg::Geode> geode = new osg::Geode;
group->addChild(geode.get());
@@ -760,7 +713,6 @@ int main(int argc, char** argv)
occluder->computeShadowVolumeGeometry(lightpos, *shadowVolume);
shadowVolume->setDrawMode(drawMode);
if (drawMode == osgShadow::ShadowVolumeGeometry::STENCIL_TWO_SIDED)
{
osg::notify(osg::NOTICE)<<"STENCIL_TWO_SIDED seleteced"<<std::endl;