FGFS-4.1/OpenSceneGraph
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Added support to .p3d format's volume tag for the properties:

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region="xmin ymin zmin xmax ymax zmax"
   alpha="float_value"
   cutoff="float_value"
   sampleDenstiy="float_value"
This commit is contained in:
Robert Osfield
2009-08-27 16:42:47 +00:00
parent 3f9216800d
commit ca78f3a6bc
3 changed files with 60 additions and 8 deletions
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14
src/osgPresentation/SlideShowConstructor.cpp
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@@ -1549,19 +1549,19 @@ void SlideShowConstructor::addVolume(const std::string& filename, const Position
if (matrix)
{
layer->setLocator(new osgVolume::Locator(*matrix));
tile->setLocator(new osgVolume::Locator(*matrix));
osg::Matrix tm = osg::Matrix::scale(volumeData.region[3]-volumeData.region[0], volumeData.region[4]-volumeData.region[1], volumeData.region[5]-volumeData.region[2]) *
osg::Matrix::translate(volumeData.region[0],volumeData.region[1],volumeData.region[2]);
tile->setLocator(new osgVolume::Locator(tm * (*matrix)));
}
tile->setLayer(layer.get());
float alphaFunc = 0.1;
osgVolume::SwitchProperty* sp = new osgVolume::SwitchProperty;
sp->setActiveProperty(0);
osgVolume::AlphaFuncProperty* ap = new osgVolume::AlphaFuncProperty(alphaFunc);
osgVolume::SampleDensityProperty* sd = new osgVolume::SampleDensityProperty(0.005);
osgVolume::TransparencyProperty* tp = new osgVolume::TransparencyProperty(1.0);
osgVolume::AlphaFuncProperty* ap = new osgVolume::AlphaFuncProperty(volumeData.cutoffValue);
osgVolume::TransparencyProperty* tp = new osgVolume::TransparencyProperty(volumeData.alphaValue);
osgVolume::SampleDensityProperty* sd = new osgVolume::SampleDensityProperty(volumeData.sampleDensityValue);
osgVolume::TransferFunctionProperty* tfp = volumeData.transferFunction.valid() ? new osgVolume::TransferFunctionProperty(volumeData.transferFunction.get()) : 0;
{
@@ -1592,7 +1592,7 @@ void SlideShowConstructor::addVolume(const std::string& filename, const Position
osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
cp->addProperty(sd);
cp->addProperty(tp);
cp->addProperty(new osgVolume::IsoSurfaceProperty(alphaFunc));
cp->addProperty(new osgVolume::IsoSurfaceProperty(volumeData.cutoffValue));
if (tfp) cp->addProperty(tfp);
sp->addProperty(cp);