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Addd ExteriorTransparencyFactorProperty for support of upcomming functionality of rendering a cube volume with a hull volume inside it.

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This commit is contained in:
Robert Osfield
2014-03-18 18:14:15 +00:00
parent ed724a730e
commit d7944b6ca9
6 changed files with 83 additions and 1 deletions
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27
src/osgVolume/Property.cpp
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@@ -238,6 +238,20 @@ TransparencyProperty::TransparencyProperty(const TransparencyProperty& isp,const
{
}
/////////////////////////////////////////////////////////////////////////////
//
// ExteriorTransparencyFactorProperty
//
ExteriorTransparencyFactorProperty::ExteriorTransparencyFactorProperty(float value):
ScalarProperty("ExteriorTransparencyFactorValue",value)
{
}
ExteriorTransparencyFactorProperty::ExteriorTransparencyFactorProperty(const ExteriorTransparencyFactorProperty& etfp,const osg::CopyOp& copyop):
ScalarProperty(etfp, copyop)
{
}
/////////////////////////////////////////////////////////////////////////////
//
// PropertyVisitor
@@ -295,6 +309,7 @@ void CollectPropertiesVisitor::apply(SampleDensityWhenMovingProperty& sdp) { _sa
void CollectPropertiesVisitor::apply(SampleRatioProperty& srp) { _sampleRatioProperty = &srp; }
void CollectPropertiesVisitor::apply(SampleRatioWhenMovingProperty& srp) { _sampleRatioWhenMovingProperty = &srp; }
void CollectPropertiesVisitor::apply(TransparencyProperty& tp) { _transparencyProperty = &tp; }
void CollectPropertiesVisitor::apply(ExteriorTransparencyFactorProperty& etfp) { _exteriorTransparencyFactorProperty = &etfp; }
class CycleSwitchVisitor : public osgVolume::PropertyVisitor
@@ -355,6 +370,7 @@ PropertyAdjustmentCallback::PropertyAdjustmentCallback():
_cyleForwardKey('v'),
_cyleBackwardKey('V'),
_transparencyKey('t'),
_exteriorTransparencyFactorKey('T'),
_alphaFuncKey('a'),
_sampleDensityKey('d'),
_updateTransparency(false),
@@ -367,6 +383,7 @@ PropertyAdjustmentCallback::PropertyAdjustmentCallback(const PropertyAdjustmentC
_cyleForwardKey(pac._cyleForwardKey),
_cyleBackwardKey(pac._cyleBackwardKey),
_transparencyKey(pac._transparencyKey),
_exteriorTransparencyFactorKey(pac._exteriorTransparencyFactorKey),
_alphaFuncKey(pac._alphaFuncKey),
_sampleDensityKey(pac._sampleDensityKey),
_updateTransparency(false),
@@ -410,6 +427,7 @@ bool PropertyAdjustmentCallback::handle(const osgGA::GUIEventAdapter& ea,osgGA::
}
}
else if (ea.getKey()==_transparencyKey) _updateTransparency = passOnUpdates = true;
else if (ea.getKey()==_exteriorTransparencyFactorKey) _updateExteriorTransparencyFactor = passOnUpdates = true;
else if (ea.getKey()==_alphaFuncKey) _updateAlphaCutOff = passOnUpdates = true;
else if (ea.getKey()==_sampleDensityKey) _updateSampleDensity = passOnUpdates = true;
break;
@@ -417,6 +435,7 @@ bool PropertyAdjustmentCallback::handle(const osgGA::GUIEventAdapter& ea,osgGA::
case(osgGA::GUIEventAdapter::KEYUP):
{
if (ea.getKey()==_transparencyKey) _updateTransparency = false;
else if (ea.getKey()==_exteriorTransparencyFactorKey) _updateExteriorTransparencyFactor = false;
else if (ea.getKey()==_alphaFuncKey) _updateAlphaCutOff = false;
else if (ea.getKey()==_sampleDensityKey) _updateSampleDensity = false;
break;
@@ -447,8 +466,14 @@ bool PropertyAdjustmentCallback::handle(const osgGA::GUIEventAdapter& ea,osgGA::
if (_updateTransparency && cpv._transparencyProperty.valid())
{
OSG_NOTICE<<"Setting transparency to "<<v2<<std::endl;
cpv._transparencyProperty->setValue((1.0f-v2)*2.0f);
OSG_NOTICE<<"Setting transparency to "<<cpv._transparencyProperty->getValue()<<std::endl;
}
if (_updateExteriorTransparencyFactor && cpv._exteriorTransparencyFactorProperty.valid())
{
cpv._exteriorTransparencyFactorProperty->setValue((1.0f-v));
OSG_NOTICE<<"Setting exterior transparency factor to "<<cpv._exteriorTransparencyFactorProperty->getValue()<<std::endl;
}
if (_updateSampleDensity && cpv._sampleDensityProperty.valid())