FGFS-4.1/OpenSceneGraph
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Introduced SampleRatioValueProperty for more intuitive control of how many samples to take when volume rendering

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This commit is contained in:
Robert Osfield
2013-12-10 10:43:48 +00:00
parent 499adba97f
commit bc95ea97fb
4 changed files with 73 additions and 12 deletions
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8
src/osgVolume/MultipassTechnique.cpp
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@@ -185,10 +185,10 @@ void MultipassTechnique::init()
alphaFuncValue = cpv._isoProperty->getValue();
}
if (cpv._sampleDensityProperty.valid())
stateset->addUniform(cpv._sampleDensityProperty->getUniform());
if (cpv._sampleRatioProperty.valid())
stateset->addUniform(cpv._sampleRatioProperty->getUniform());
else
stateset->addUniform(new osg::Uniform("SampleDensityValue",0.0005f));
stateset->addUniform(new osg::Uniform("SampleRatioValue",1.0f));
if (cpv._transparencyProperty.valid())
@@ -265,6 +265,8 @@ void MultipassTechnique::init()
osg::ref_ptr<osg::Uniform> volumeCellSize = new osg::Uniform("volumeCellSize", osg::Vec3(1.0f/static_cast<float>(image_3d->s()),1.0f/static_cast<float>(image_3d->t()),1.0f/static_cast<float>(image_3d->r())));
stateset->addUniform(volumeCellSize.get());
OSG_NOTICE<<"Texture Dimensions "<<image_3d->s()<<", "<<image_3d->t()<<", "<<image_3d->r()<<std::endl;
}