FGFS-4.1/OpenSceneGraph
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Changed the updateStateSet code so that it creates a new StateSet each update

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rather than clear and reuse the existing one, this change fixes a threading
issue that occured when the viewer is in DrawThreadPerContext.
This commit is contained in:
Robert Osfield 2008-03-04 11:52:21 +00:00
parent a145975de1
commit 2db68f98a8
1 changed files with 6 additions and 48 deletions
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54
src/osgFX/MultiTextureControl.cpp
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@ -43,9 +43,13 @@ void MultiTextureControl::setTextureWeight(unsigned int unit, float weight)
void MultiTextureControl::updateStateSet()
{
#if 0
osg::StateSet* stateset = getOrCreateStateSet();
stateset->clear();
#else
// temporary measure to avoid multi-threaded crash
osg::StateSet* stateset = new osg::StateSet;
#endif
unsigned int numTextureUnitsOn = 0;
unsigned int unit;
@ -147,52 +151,6 @@ void MultiTextureControl::updateStateSet()
}
}
/*
bool firstActiveTextureUnit = true;
for(unsigned int unit = 0;
unit < _textureWeightList.size();
++unit)
{
float r = _textureWeightList[unit];
if (r==0.0f)
{
stateset->setTextureMode(unit, GL_TEXTURE_2D, osg::StateAttribute::OFF);
}
else
{
stateset->setTextureMode(unit, GL_TEXTURE_2D, osg::StateAttribute::ON);
if (firstActiveTextureUnit)
{
stateset->setTextureAttribute(unit, new osg::TexEnv);
firstActiveTextureUnit = false;
}
else
{
osg::TexEnvCombine* texenv = new osg::TexEnvCombine;
texenv->setCombine_RGB(osg::TexEnvCombine::INTERPOLATE);
texenv->setSource0_RGB(osg::TexEnvCombine::PREVIOUS);
texenv->setOperand0_RGB(osg::TexEnvCombine::SRC_COLOR);
texenv->setSource1_RGB(osg::TexEnvCombine::TEXTURE);
texenv->setOperand1_RGB(osg::TexEnvCombine::SRC_COLOR);
texenv->setSource2_RGB(osg::TexEnvCombine::CONSTANT);
texenv->setOperand2_RGB(osg::TexEnvCombine::SRC_COLOR);
texenv->setConstantColor(osg::Vec4(r,r,r,r));
stateset->setTextureAttribute(unit, texenv);
}
}
}
*/
setStateSet(stateset);
}