本文整理汇总了C++中osg::State::getAttributeVec方法的典型用法代码示例。如果您正苦于以下问题：C++ State::getAttributeVec方法的具体用法？C++ State::getAttributeVec怎么用？C++ State::getAttributeVec使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类osg::State的用法示例。
在下文中一共展示了State::getAttributeVec方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: apply
void VirtualProgram::apply( osg::State & state ) const
{
if( _shaderMap.empty() ) // Virtual Program works as normal Program
return Program::apply( state );
State::AttributeVec *av = &state.getAttributeVec(this);
#if NOTIFICATION_MESSAGES
std::ostream &os = osg::notify( osg::NOTICE );
os << "VirtualProgram cumulate Begin" << std::endl;
#endif
ShaderMap shaderMap;
for( State::AttributeVec::iterator i = av->begin(); i != av->end(); ++i )
{
const osg::StateAttribute * sa = i->first;
const VirtualProgram * vp = dynamic_cast< const VirtualProgram *>( sa );
if( vp && ( vp->_mask & _mask ) ) {
#if NOTIFICATION_MESSAGES
if( vp->getName().empty() )
os << "VirtualProgram cumulate [ Unnamed VP ] apply" << std::endl;
else
os << "VirtualProgram cumulate ["<< vp->getName() << "] apply" << std::endl;
#endif
for( ShaderMap::const_iterator i = vp->_shaderMap.begin();
i != vp->_shaderMap.end(); ++i )
{
shaderMap[ i->first ] = i->second;
}
} else {
#if NOTIFICATION_MESSAGES
os << "VirtualProgram cumulate ( not VP or mask not match ) ignored" << std::endl;
#endif
continue; // ignore osg::Programs
}
}
for( ShaderMap::const_iterator i = this->_shaderMap.begin();
i != this->_shaderMap.end(); ++i )
shaderMap[ i->first ] = i->second;
#if NOTIFICATION_MESSAGES
os << "VirtualProgram cumulate End" << std::endl;
#endif
if( shaderMap.size() ) {
ShaderList sl;
for( ShaderMap::iterator i = shaderMap.begin(); i != shaderMap.end(); ++i )
sl.push_back( i->second );
osg::ref_ptr< osg::Program > & program = _programMap[ sl ];
if( !program.valid() ) {
program = new osg::Program;
#if !MERGE_SHADERS
for( ShaderList::iterator i = sl.begin(); i != sl.end(); ++i )
program->addShader( i->get() );
#else
std::string strFragment;
std::string strVertex;
std::string strGeometry;
for( ShaderList::iterator i = sl.begin(); i != sl.end(); ++i )
{
if( i->get()->getType() == osg::Shader::FRAGMENT )
strFragment += i->get()->getShaderSource();
else if ( i->get()->getType() == osg::Shader::VERTEX )
strVertex += i->get()->getShaderSource();
else if ( i->get()->getType() == osg::Shader::GEOMETRY )
strGeometry += i->get()->getShaderSource();
}
if( strFragment.length() > 0 ) {
program->addShader( new osg::Shader( osg::Shader::FRAGMENT, strFragment ) );
#if NOTIFICATION_MESSAGES
os << "====VirtualProgram merged Fragment Shader:" << std::endl << strFragment << "====" << std::endl;
#endif
}
if( strVertex.length() > 0 ) {
program->addShader( new osg::Shader( osg::Shader::VERTEX, strVertex ) );
#if NOTIFICATION_MESSAGES
os << "VirtualProgram merged Vertex Shader:" << std::endl << strVertex << "====" << std::endl;
#endif
}
if( strGeometry.length() > 0 ) {
program->addShader( new osg::Shader( osg::Shader::GEOMETRY, strGeometry ) );
#if NOTIFICATION_MESSAGES
os << "VirtualProgram merged Geometry Shader:" << std::endl << strGeometry << "====" << std::endl;
#endif
}
#endif
}
state.applyAttribute( program.get() );
//.........这里部分代码省略.........