FGFS-4.1/OpenSceneGraph
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Added checks to prevent crash when no imagery is applied

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This commit is contained in:
Robert Osfield
2009-05-05 11:05:17 +00:00
parent ee3bfe94a3
commit e2f4e96416
1 changed files with 18 additions and 2 deletions
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20
src/osgVolume/FixedFunctionTechnique.cpp
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@@ -98,9 +98,25 @@ osg::Node* createCube(const osg::Vec3& center, float size, unsigned int numSlice
void FixedFunctionTechnique::init()
{
osg::notify(osg::NOTICE)<<"FixedFunctionTechnique::init()"<<std::endl;
osg::notify(osg::INFO)<<"FixedFunctionTechnique::init()"<<std::endl;
if (!_volumeTile) return;
if (!_volumeTile)
{
osg::notify(osg::NOTICE)<<"FixedFunctionTechnique::init(), error no volume tile assigned."<<std::endl;
return;
}
if (_volumeTile->getLayer()==0)
{
osg::notify(osg::NOTICE)<<"FixedFunctionTechnique::init(), error no layer assigend to volume tile."<<std::endl;
return;
}
if (_volumeTile->getLayer()->getImage()==0)
{
osg::notify(osg::NOTICE)<<"FixedFunctionTechnique::init(), error no image assigned to layer."<<std::endl;
return;
}
float alphaFuncValue = 0.1;